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Gašper Dobrovoljc
2023-03-11 15:11:03 +01:00
commit ec125f27db
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2.2.2 (2017-11-03)
* Make SSID a const char * in begin() #116
* Replace NULL with 0 to avoid compilation warnings
* Changing _ESPLOGLEVEL_ requires editing debug.h #88
2.2.1 (2017-01-02)
* Fixing Issue #69 (Can't declare member function to have static linkage)
* Supporting ESP8266 firmware 2.X
2.1.2 (2016-05-08)
* Added retry in EspDrv::wifiDriverInit method
* Clean buffer in ScanNetwork (bug #43)
2.1.1 (2016-05-09)
* Implemented gatwayIP() and subnetMask() methods
2.1 (2016-03-13)
* SSL connection support
* Implementation of config and configAP methods
* Fixed read methods WiFiEspClient.read(buf, size) and WiFiEspUDP::read(buf, size)
* Fixed possible buffer overflow in EspDrv.sendCmdGet
* Added beginAP methods similar to WiFi101 library - parameters order for beginAP is now different!
1.6 (2016-02-21)
* Improved UDP support
* Added WiFiEspClient.remoteIP() method
* Consistent use use of uint16_t to manage port numbers
* Added AT+CIPDINFO=1 during init to return remote IP and port with IPD
* Added AT+CWAUTOCONN=0 during init to disable autoconnect
1.5.1 (2016-02-11)
* Fix in EspDrv.getScanNetworks method
* Fix buffer overflow in getFwVersion
1.5 (2016-01-25)
* Implemented scanNetworks method
* Increased ring buffer size to 32 to read long SSID names
1.4.2 (2016-01-05)
* Fixed compilation problem when using WiFiEspClient.print
1.4.1 (2016-01-05)
* Speed optimizations
1.4 (2016-01-04)
* Reduced dynamic memory footprint
1.3 (2016-01-03)
* UDP support (experimental)
* Fixed WiFiEspClient.connected and WiFi.status and methods
* Connection close detection
* Ring buffer optimization
* Client peek method fixed
1.2 (2015-12-29)
* Redesigned WiFi.init method to accept a Stream object
* Use CUR when starting the AP
* Small improvements to samples
1.1 (2015-12-20)
* Fix for receiving large data packets
* Access point mode support
* Ring buffer class is now used in EspDrv.cpp
* Removed not implemented methods
* Prints firmware version if not recognized
* Multiple exclamation marks fixed for Arduino Mega
* Cleaned up comments
1.0 (2015-12-11)
* First stable release

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reviewing courts shall apply local law that most closely approximates
an absolute waiver of all civil liability in connection with the
Program, unless a warranty or assumption of liability accompanies a
copy of the Program in return for a fee.
END OF TERMS AND CONDITIONS
How to Apply These Terms to Your New Programs
If you develop a new program, and you want it to be of the greatest
possible use to the public, the best way to achieve this is to make it
free software which everyone can redistribute and change under these terms.
To do so, attach the following notices to the program. It is safest
to attach them to the start of each source file to most effectively
state the exclusion of warranty; and each file should have at least
the "copyright" line and a pointer to where the full notice is found.
{one line to give the program's name and a brief idea of what it does.}
Copyright (C) {year} {name of author}
This program is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>.
Also add information on how to contact you by electronic and paper mail.
If the program does terminal interaction, make it output a short
notice like this when it starts in an interactive mode:
{project} Copyright (C) {year} {fullname}
This program comes with ABSOLUTELY NO WARRANTY; for details type `show w'.
This is free software, and you are welcome to redistribute it
under certain conditions; type `show c' for details.
The hypothetical commands `show w' and `show c' should show the appropriate
parts of the General Public License. Of course, your program's commands
might be different; for a GUI interface, you would use an "about box".
You should also get your employer (if you work as a programmer) or school,
if any, to sign a "copyright disclaimer" for the program, if necessary.
For more information on this, and how to apply and follow the GNU GPL, see
<http://www.gnu.org/licenses/>.
The GNU General Public License does not permit incorporating your program
into proprietary programs. If your program is a subroutine library, you
may consider it more useful to permit linking proprietary applications with
the library. If this is what you want to do, use the GNU Lesser General
Public License instead of this License. But first, please read
<http://www.gnu.org/philosophy/why-not-lgpl.html>.

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# WiFiEsp
With an ESP8266 board, WiFiEsp library allows an Arduino board to connect to the internet.
It can serve as either a server accepting incoming connections or a client making outgoing ones.
The WiFiEsp library is very similar to the Arduino [WiFi](http://www.arduino.cc/en/Reference/WiFi) and [Ethernet](http://www.arduino.cc/en/Reference/Ethernet) libraries, and many of the function calls are the same.
Supports ESP SDK version 1.1.1 and above (AT version 0.25 and above).
## Features
- APIs compatible with standard Arduino WiFi library.
- Use AT commands of standard ESP firmware (no need to flash a custom firmware).
- Support hardware and software serial ports.
- Configurable tracing level.
## Wiring
The WiFiEsp library has been designed to work with the [ESP WiFi shield](http://www.instructables.com/id/Cheap-Arduino-WiFi-Shield-With-ESP8266/).
It is a cheap version of the Arduino WiFi shield that uses an ESP-01 module to provide networking capabilities to Arduino boards.
## Examples
- [ConnectWPA](https://github.com/bportaluri/WiFiEsp/blob/master/examples/ConnectWPA/ConnectWPA.ino) - Demonstrates how to connect to a network that is encrypted with WPA2 Personal
- [WebClient](https://github.com/bportaluri/WiFiEsp/blob/master/examples/WebClient/WebClient.ino) - Connect to a remote webserver
- [WebClientRepeating](https://github.com/bportaluri/WiFiEsp/blob/master/examples/WebClientRepeating/WebClientRepeating.ino) - Make repeated HTTP calls to a webserver
- [WebServer](https://github.com/bportaluri/WiFiEsp/blob/master/examples/WebServer/WebServer.ino) - Serve a webpage from the WiFi shield
- [WebServerAP](https://github.com/bportaluri/WiFiEsp/blob/master/examples/WebServerAP/WebServerAP.ino) - Serve a webpage from the WiFi shield starting a local Access Point
- [WebServerLed](https://github.com/bportaluri/WiFiEsp/blob/master/examples/WebServerLed/WebServerLed.ino) - Turn on and off a led from a webpage
- [UdpNTPClient](https://github.com/bportaluri/WiFiEsp/blob/master/examples/UdpNTPClient/UdpNTPClient.ino) - Query a Network Time Protocol (NTP) server using UDP
## Supported APIs
Most of the standard Arduino WiFi library methods are available. Refer to the [WiFi library page](http://www.arduino.cc/en/Reference/WiFi) for more details.
### WiFiEsp class
- begin() - Not all authentication types
- disconnect() - YES
- config()
- setDNS() - NO (no AT command available)
- SSID() - YES
- BSSID() - YES
- RSSI() - YES
- encryptionType() - NO (no AT command available)
- scanNetworks() - YES
- getSocket()
- macAddress() - YES
### WiFiEspServer class
The WiFiEspServer class creates servers which can send data to and receive data from connected clients (programs running on other computers or devices).
- WiFiEspServer() - YES
- begin() - YES
- available() - YES
- write() - YES
- print() - YES
- println() - YES
### Client class
The WiFiEspClient class creates clients that can connect to servers and send and receive data.
- WiFiEspClient() - YES
- connected() - YES
- connect() - YES
- write() - YES
- print() - YES
- println() - YES
- available() - YES
- read() - YES
- flush() - YES
- stop() - YES
### WiFiEspUDP class
The UDP class enables UDP message to be sent and received.
- WiFiUDP - YES
- begin() - YES
- available() - YES
- beginPacket() - YES
- endPacket() - YES
- write() - YES
- parsePacket() - YES
- peek()
- read() - YES
- flush()
- stop()
- remoteIP() - YES
- remotePort() - YES
## Contributing
If you discover a bug or would like to propose a new feature, please open a new [issue](https://github.com/bportaluri/WiFiEsp/issues).

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/*
WiFiEsp example: ConnectWPA
This example connects to an encrypted WiFi network using an ESP8266 module.
Then it prints the MAC address of the WiFi shield, the IP address obtained
and other network details.
For more details see: http://yaab-arduino.blogspot.com/p/wifiesp-example-connect.html
*/
#include "WiFiEsp.h"
// Emulate Serial1 on pins 6/7 if not present
#ifndef HAVE_HWSERIAL1
#include "SoftwareSerial.h"
SoftwareSerial Serial1(6, 7); // RX, TX
#endif
char ssid[] = "Twim"; // your network SSID (name)
char pass[] = "12345678"; // your network password
int status = WL_IDLE_STATUS; // the Wifi radio's status
void setup()
{
// initialize serial for debugging
Serial.begin(115200);
// initialize serial for ESP module
Serial1.begin(9600);
// initialize ESP module
WiFi.init(&Serial1);
// check for the presence of the shield
if (WiFi.status() == WL_NO_SHIELD) {
Serial.println("WiFi shield not present");
// don't continue
while (true);
}
// attempt to connect to WiFi network
while ( status != WL_CONNECTED) {
Serial.print("Attempting to connect to WPA SSID: ");
Serial.println(ssid);
// Connect to WPA/WPA2 network
status = WiFi.begin(ssid, pass);
}
Serial.println("You're connected to the network");
}
void loop()
{
// print the network connection information every 10 seconds
Serial.println();
printCurrentNet();
printWifiData();
delay(10000);
}
void printWifiData()
{
// print your WiFi shield's IP address
IPAddress ip = WiFi.localIP();
Serial.print("IP Address: ");
Serial.println(ip);
// print your MAC address
byte mac[6];
WiFi.macAddress(mac);
char buf[20];
sprintf(buf, "%02X:%02X:%02X:%02X:%02X:%02X", mac[5], mac[4], mac[3], mac[2], mac[1], mac[0]);
Serial.print("MAC address: ");
Serial.println(buf);
}
void printCurrentNet()
{
// print the SSID of the network you're attached to
Serial.print("SSID: ");
Serial.println(WiFi.SSID());
// print the MAC address of the router you're attached to
byte bssid[6];
WiFi.BSSID(bssid);
char buf[20];
sprintf(buf, "%02X:%02X:%02X:%02X:%02X:%02X", bssid[5], bssid[4], bssid[3], bssid[2], bssid[1], bssid[0]);
Serial.print("BSSID: ");
Serial.println(buf);
// print the received signal strength
long rssi = WiFi.RSSI();
Serial.print("Signal strength (RSSI): ");
Serial.println(rssi);
}

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/*
WiFiEsp example: ScanNetworks
This example prints the Wifi shield's MAC address, and
scans for available Wifi networks using the Wifi shield.
Every ten seconds, it scans again. It doesn't actually
connect to any network, so no encryption scheme is specified.
For more details see: http://yaab-arduino.blogspot.com/p/wifiesp.html
*/
#include "WiFiEsp.h"
// Emulate Serial1 on pins 6/7 if not present
#ifndef HAVE_HWSERIAL1
#include "SoftwareSerial.h"
SoftwareSerial Serial1(6, 7); // RX, TX
#endif
void setup() {
// initialize serial for debugging
Serial.begin(115200);
// initialize serial for ESP module
Serial1.begin(9600);
// initialize ESP module
WiFi.init(&Serial1);
// check for the presence of the shield
if (WiFi.status() == WL_NO_SHIELD) {
Serial.println("WiFi shield not present");
// don't continue
while (true);
}
// Print WiFi MAC address
printMacAddress();
}
void loop()
{
// scan for existing networks
Serial.println();
Serial.println("Scanning available networks...");
listNetworks();
delay(10000);
}
void printMacAddress()
{
// get your MAC address
byte mac[6];
WiFi.macAddress(mac);
// print MAC address
char buf[20];
sprintf(buf, "%02X:%02X:%02X:%02X:%02X:%02X", mac[5], mac[4], mac[3], mac[2], mac[1], mac[0]);
Serial.print("MAC address: ");
Serial.println(buf);
}
void listNetworks()
{
// scan for nearby networks
int numSsid = WiFi.scanNetworks();
if (numSsid == -1) {
Serial.println("Couldn't get a wifi connection");
while (true);
}
// print the list of networks seen
Serial.print("Number of available networks:");
Serial.println(numSsid);
// print the network number and name for each network found
for (int thisNet = 0; thisNet < numSsid; thisNet++) {
Serial.print(thisNet);
Serial.print(") ");
Serial.print(WiFi.SSID(thisNet));
Serial.print("\tSignal: ");
Serial.print(WiFi.RSSI(thisNet));
Serial.print(" dBm");
Serial.print("\tEncryption: ");
printEncryptionType(WiFi.encryptionType(thisNet));
}
}
void printEncryptionType(int thisType) {
// read the encryption type and print out the name
switch (thisType) {
case ENC_TYPE_WEP:
Serial.print("WEP");
break;
case ENC_TYPE_WPA_PSK:
Serial.print("WPA_PSK");
break;
case ENC_TYPE_WPA2_PSK:
Serial.print("WPA2_PSK");
break;
case ENC_TYPE_WPA_WPA2_PSK:
Serial.print("WPA_WPA2_PSK");
break;
case ENC_TYPE_NONE:
Serial.print("None");
break;
}
Serial.println();
}

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/*
WiFiEsp example: UdpNTPClient
Get the time from a Network Time Protocol (NTP) time server.
Demonstrates use of UDP to send and receive data packets
For more on NTP time servers and the messages needed to communicate with them,
see http://en.wikipedia.org/wiki/Network_Time_Protocol
NOTE: The serial buffer size must be larger than 36 + packet size
In this example we use an UDP packet of 48 bytes so the buffer must be
at least 36+48=84 bytes that exceeds the default buffer size (64).
You must modify the serial buffer size to 128
For HardwareSerial modify _SS_MAX_RX_BUFF in
Arduino\hardware\arduino\avr\cores\arduino\SoftwareSerial.h
For SoftwareSerial modify _SS_MAX_RX_BUFF in
Arduino\hardware\arduino\avr\libraries\SoftwareSerial\SoftwareSerial.h
*/
#include "WiFiEsp.h"
#include "WiFiEspUdp.h"
// Emulate Serial1 on pins 6/7 if not present
#ifndef HAVE_HWSERIAL1
#include "SoftwareSerial.h"
SoftwareSerial Serial1(6, 7); // RX, TX
#endif
char ssid[] = "Twim"; // your network SSID (name)
char pass[] = "12345678"; // your network password
int status = WL_IDLE_STATUS; // the Wifi radio's status
char timeServer[] = "time.nist.gov"; // NTP server
unsigned int localPort = 2390; // local port to listen for UDP packets
const int NTP_PACKET_SIZE = 48; // NTP timestamp is in the first 48 bytes of the message
const int UDP_TIMEOUT = 2000; // timeout in miliseconds to wait for an UDP packet to arrive
byte packetBuffer[NTP_PACKET_SIZE]; // buffer to hold incoming and outgoing packets
// A UDP instance to let us send and receive packets over UDP
WiFiEspUDP Udp;
void setup()
{
// initialize serial for debugging
Serial.begin(115200);
// initialize serial for ESP module
Serial1.begin(9600);
// initialize ESP module
WiFi.init(&Serial1);
// check for the presence of the shield
if (WiFi.status() == WL_NO_SHIELD) {
Serial.println("WiFi shield not present");
// don't continue
while (true);
}
// attempt to connect to WiFi network
while ( status != WL_CONNECTED) {
Serial.print("Attempting to connect to WPA SSID: ");
Serial.println(ssid);
// Connect to WPA/WPA2 network
status = WiFi.begin(ssid, pass);
}
// you're connected now, so print out the data
Serial.println("You're connected to the network");
Udp.begin(localPort);
}
void loop()
{
sendNTPpacket(timeServer); // send an NTP packet to a time server
// wait for a reply for UDP_TIMEOUT miliseconds
unsigned long startMs = millis();
while (!Udp.available() && (millis() - startMs) < UDP_TIMEOUT) {}
Serial.println(Udp.parsePacket());
if (Udp.parsePacket()) {
Serial.println("packet received");
// We've received a packet, read the data from it into the buffer
Udp.read(packetBuffer, NTP_PACKET_SIZE);
// the timestamp starts at byte 40 of the received packet and is four bytes,
// or two words, long. First, esxtract the two words:
unsigned long highWord = word(packetBuffer[40], packetBuffer[41]);
unsigned long lowWord = word(packetBuffer[42], packetBuffer[43]);
// combine the four bytes (two words) into a long integer
// this is NTP time (seconds since Jan 1 1900):
unsigned long secsSince1900 = highWord << 16 | lowWord;
Serial.print("Seconds since Jan 1 1900 = ");
Serial.println(secsSince1900);
// now convert NTP time into everyday time:
Serial.print("Unix time = ");
// Unix time starts on Jan 1 1970. In seconds, that's 2208988800:
const unsigned long seventyYears = 2208988800UL;
// subtract seventy years:
unsigned long epoch = secsSince1900 - seventyYears;
// print Unix time:
Serial.println(epoch);
// print the hour, minute and second:
Serial.print("The UTC time is "); // UTC is the time at Greenwich Meridian (GMT)
Serial.print((epoch % 86400L) / 3600); // print the hour (86400 equals secs per day)
Serial.print(':');
if (((epoch % 3600) / 60) < 10) {
// In the first 10 minutes of each hour, we'll want a leading '0'
Serial.print('0');
}
Serial.print((epoch % 3600) / 60); // print the minute (3600 equals secs per minute)
Serial.print(':');
if ((epoch % 60) < 10) {
// In the first 10 seconds of each minute, we'll want a leading '0'
Serial.print('0');
}
Serial.println(epoch % 60); // print the second
}
// wait ten seconds before asking for the time again
delay(10000);
}
// send an NTP request to the time server at the given address
void sendNTPpacket(char *ntpSrv)
{
// set all bytes in the buffer to 0
memset(packetBuffer, 0, NTP_PACKET_SIZE);
// Initialize values needed to form NTP request
// (see URL above for details on the packets)
packetBuffer[0] = 0b11100011; // LI, Version, Mode
packetBuffer[1] = 0; // Stratum, or type of clock
packetBuffer[2] = 6; // Polling Interval
packetBuffer[3] = 0xEC; // Peer Clock Precision
// 8 bytes of zero for Root Delay & Root Dispersion
packetBuffer[12] = 49;
packetBuffer[13] = 0x4E;
packetBuffer[14] = 49;
packetBuffer[15] = 52;
// all NTP fields have been given values, now
// you can send a packet requesting a timestamp:
Udp.beginPacket(ntpSrv, 123); //NTP requests are to port 123
Udp.write(packetBuffer, NTP_PACKET_SIZE);
Udp.endPacket();
}

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/*
WiFiEsp example: WiFi UDP Send and Receive String
This sketch wait an UDP packet on localPort using a WiFi shield.
When a packet is received an 'ACK' packet is sent to the client on port remotePort.
For more details see: http://yaab-arduino.blogspot.com/p/wifiesp-example-client.html
*/
#include <WiFiEsp.h>
#include <WiFiEspUdp.h>
// Emulate Serial1 on pins 6/7 if not present
#ifndef HAVE_HWSERIAL1
#include "SoftwareSerial.h"
SoftwareSerial Serial1(6, 7); // RX, TX
#endif
char ssid[] = "Twim"; // your network SSID (name)
char pass[] = "12345678"; // your network password
int status = WL_IDLE_STATUS; // the Wifi radio's status
unsigned int localPort = 10002; // local port to listen on
char packetBuffer[255]; // buffer to hold incoming packet
char ReplyBuffer[] = "ACK"; // a string to send back
WiFiEspUDP Udp;
void setup() {
// initialize serial for debugging
Serial.begin(115200);
// initialize serial for ESP module
Serial1.begin(9600);
// initialize ESP module
WiFi.init(&Serial1);
// check for the presence of the shield:
if (WiFi.status() == WL_NO_SHIELD) {
Serial.println("WiFi shield not present");
// don't continue:
while (true);
}
// attempt to connect to WiFi network
while ( status != WL_CONNECTED) {
Serial.print("Attempting to connect to WPA SSID: ");
Serial.println(ssid);
// Connect to WPA/WPA2 network
status = WiFi.begin(ssid, pass);
}
Serial.println("Connected to wifi");
printWifiStatus();
Serial.println("\nStarting connection to server...");
// if you get a connection, report back via serial:
Udp.begin(localPort);
Serial.print("Listening on port ");
Serial.println(localPort);
}
void loop() {
// if there's data available, read a packet
int packetSize = Udp.parsePacket();
if (packetSize) {
Serial.print("Received packet of size ");
Serial.println(packetSize);
Serial.print("From ");
IPAddress remoteIp = Udp.remoteIP();
Serial.print(remoteIp);
Serial.print(", port ");
Serial.println(Udp.remotePort());
// read the packet into packetBufffer
int len = Udp.read(packetBuffer, 255);
if (len > 0) {
packetBuffer[len] = 0;
}
Serial.println("Contents:");
Serial.println(packetBuffer);
// send a reply, to the IP address and port that sent us the packet we received
Udp.beginPacket(Udp.remoteIP(), Udp.remotePort());
Udp.write(ReplyBuffer);
Udp.endPacket();
}
}
void printWifiStatus() {
// print the SSID of the network you're attached to:
Serial.print("SSID: ");
Serial.println(WiFi.SSID());
// print your WiFi shield's IP address:
IPAddress ip = WiFi.localIP();
Serial.print("IP Address: ");
Serial.println(ip);
// print the received signal strength:
long rssi = WiFi.RSSI();
Serial.print("signal strength (RSSI):");
Serial.print(rssi);
Serial.println(" dBm");
}

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/*
WiFiEsp example: WebClient
This sketch connects to google website using an ESP8266 module to
perform a simple web search.
For more details see: http://yaab-arduino.blogspot.com/p/wifiesp-example-client.html
*/
#include "WiFiEsp.h"
// Emulate Serial1 on pins 6/7 if not present
#ifndef HAVE_HWSERIAL1
#include "SoftwareSerial.h"
SoftwareSerial Serial1(6, 7); // RX, TX
#endif
char ssid[] = "Twim"; // your network SSID (name)
char pass[] = "12345678"; // your network password
int status = WL_IDLE_STATUS; // the Wifi radio's status
char server[] = "arduino.cc";
// Initialize the Ethernet client object
WiFiEspClient client;
void setup()
{
// initialize serial for debugging
Serial.begin(115200);
// initialize serial for ESP module
Serial1.begin(9600);
// initialize ESP module
WiFi.init(&Serial1);
// check for the presence of the shield
if (WiFi.status() == WL_NO_SHIELD) {
Serial.println("WiFi shield not present");
// don't continue
while (true);
}
// attempt to connect to WiFi network
while ( status != WL_CONNECTED) {
Serial.print("Attempting to connect to WPA SSID: ");
Serial.println(ssid);
// Connect to WPA/WPA2 network
status = WiFi.begin(ssid, pass);
}
// you're connected now, so print out the data
Serial.println("You're connected to the network");
printWifiStatus();
Serial.println();
Serial.println("Starting connection to server...");
// if you get a connection, report back via serial
if (client.connect(server, 80)) {
Serial.println("Connected to server");
// Make a HTTP request
client.println("GET /asciilogo.txt HTTP/1.1");
client.println("Host: arduino.cc");
client.println("Connection: close");
client.println();
}
}
void loop()
{
// if there are incoming bytes available
// from the server, read them and print them
while (client.available()) {
char c = client.read();
Serial.write(c);
}
// if the server's disconnected, stop the client
if (!client.connected()) {
Serial.println();
Serial.println("Disconnecting from server...");
client.stop();
// do nothing forevermore
while (true);
}
}
void printWifiStatus()
{
// print the SSID of the network you're attached to
Serial.print("SSID: ");
Serial.println(WiFi.SSID());
// print your WiFi shield's IP address
IPAddress ip = WiFi.localIP();
Serial.print("IP Address: ");
Serial.println(ip);
// print the received signal strength
long rssi = WiFi.RSSI();
Serial.print("Signal strength (RSSI):");
Serial.print(rssi);
Serial.println(" dBm");
}

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/*
WiFiEsp example: WebClientRepeating
This sketch connects to a web server and makes an HTTP request
using an Arduino ESP8266 module.
It repeats the HTTP call each 10 seconds.
For more details see: http://yaab-arduino.blogspot.com/p/wifiesp.html
*/
#include "WiFiEsp.h"
// Emulate Serial1 on pins 6/7 if not present
#ifndef HAVE_HWSERIAL1
#include "SoftwareSerial.h"
SoftwareSerial Serial1(6, 7); // RX, TX
#endif
char ssid[] = "Twim"; // your network SSID (name)
char pass[] = "12345678"; // your network password
int status = WL_IDLE_STATUS; // the Wifi radio's status
char server[] = "arduino.cc";
unsigned long lastConnectionTime = 0; // last time you connected to the server, in milliseconds
const unsigned long postingInterval = 10000L; // delay between updates, in milliseconds
// Initialize the Ethernet client object
WiFiEspClient client;
void setup()
{
// initialize serial for debugging
Serial.begin(115200);
// initialize serial for ESP module
Serial1.begin(9600);
// initialize ESP module
WiFi.init(&Serial1);
// check for the presence of the shield
if (WiFi.status() == WL_NO_SHIELD) {
Serial.println("WiFi shield not present");
// don't continue
while (true);
}
// attempt to connect to WiFi network
while ( status != WL_CONNECTED) {
Serial.print("Attempting to connect to WPA SSID: ");
Serial.println(ssid);
// Connect to WPA/WPA2 network
status = WiFi.begin(ssid, pass);
}
Serial.println("You're connected to the network");
printWifiStatus();
}
void loop()
{
// if there's incoming data from the net connection send it out the serial port
// this is for debugging purposes only
while (client.available()) {
char c = client.read();
Serial.write(c);
}
// if 10 seconds have passed since your last connection,
// then connect again and send data
if (millis() - lastConnectionTime > postingInterval) {
httpRequest();
}
}
// this method makes a HTTP connection to the server
void httpRequest()
{
Serial.println();
// close any connection before send a new request
// this will free the socket on the WiFi shield
client.stop();
// if there's a successful connection
if (client.connect(server, 80)) {
Serial.println("Connecting...");
// send the HTTP PUT request
client.println(F("GET /asciilogo.txt HTTP/1.1"));
client.println(F("Host: arduino.cc"));
client.println("Connection: close");
client.println();
// note the time that the connection was made
lastConnectionTime = millis();
}
else {
// if you couldn't make a connection
Serial.println("Connection failed");
}
}
void printWifiStatus()
{
// print the SSID of the network you're attached to
Serial.print("SSID: ");
Serial.println(WiFi.SSID());
// print your WiFi shield's IP address
IPAddress ip = WiFi.localIP();
Serial.print("IP Address: ");
Serial.println(ip);
// print the received signal strength
long rssi = WiFi.RSSI();
Serial.print("Signal strength (RSSI):");
Serial.print(rssi);
Serial.println(" dBm");
}

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/*
WiFiEsp example: WebClient
This sketch connects to google website using an ESP8266 module to
perform a simple web search.
For more details see: http://yaab-arduino.blogspot.com/p/wifiesp-example-client.html
*/
#include "WiFiEsp.h"
// Emulate Serial1 on pins 6/7 if not present
#ifndef HAVE_HWSERIAL1
#include "SoftwareSerial.h"
SoftwareSerial Serial1(6, 7); // RX, TX
#endif
char ssid[] = "Twim"; // your network SSID (name)
char pass[] = "12345678"; // your network password
int status = WL_IDLE_STATUS; // the Wifi radio's status
char server[] = "www.google.com";
// Initialize the Ethernet client object
WiFiEspClient client;
void setup()
{
// initialize serial for debugging
Serial.begin(115200);
// initialize serial for ESP module
Serial1.begin(9600);
// initialize ESP module
WiFi.init(&Serial1);
// check for the presence of the shield
if (WiFi.status() == WL_NO_SHIELD) {
Serial.println("WiFi shield not present");
// don't continue
while (true);
}
// attempt to connect to WiFi network
while ( status != WL_CONNECTED) {
Serial.print("Attempting to connect to WPA SSID: ");
Serial.println(ssid);
// Connect to WPA/WPA2 network
status = WiFi.begin(ssid, pass);
}
// you're connected now, so print out the data
Serial.println("You're connected to the network");
printWifiStatus();
Serial.println();
Serial.println("Starting connection to server...");
// if you get a connection, report back via serial
if (client.connectSSL(server, 443)) {
Serial.println("Connected to server");
// Make a HTTP request
client.println("GET / HTTP/1.1");
client.println("Host: www.google.com");
client.println("Connection: close");
client.println();
}
}
void loop()
{
// if there are incoming bytes available
// from the server, read them and print them
while (client.available()) {
char c = client.read();
Serial.write(c);
}
// if the server's disconnected, stop the client
if (!client.connected()) {
Serial.println();
Serial.println("Disconnecting from server...");
client.stop();
// do nothing forevermore
while (true);
}
}
void printWifiStatus()
{
// print the SSID of the network you're attached to
Serial.print("SSID: ");
Serial.println(WiFi.SSID());
// print your WiFi shield's IP address
IPAddress ip = WiFi.localIP();
Serial.print("IP Address: ");
Serial.println(ip);
// print the received signal strength
long rssi = WiFi.RSSI();
Serial.print("Signal strength (RSSI):");
Serial.print(rssi);
Serial.println(" dBm");
}

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/*
WiFiEsp example: WebServer
A simple web server that shows the value of the analog input
pins via a web page using an ESP8266 module.
This sketch will print the IP address of your ESP8266 module (once connected)
to the Serial monitor. From there, you can open that address in a web browser
to display the web page.
The web page will be automatically refreshed each 20 seconds.
For more details see: http://yaab-arduino.blogspot.com/p/wifiesp.html
*/
#include "WiFiEsp.h"
// Emulate Serial1 on pins 6/7 if not present
#ifndef HAVE_HWSERIAL1
#include "SoftwareSerial.h"
SoftwareSerial Serial1(6, 7); // RX, TX
#endif
char ssid[] = "Twim"; // your network SSID (name)
char pass[] = "12345678"; // your network password
int status = WL_IDLE_STATUS; // the Wifi radio's status
int reqCount = 0; // number of requests received
WiFiEspServer server(80);
void setup()
{
// initialize serial for debugging
Serial.begin(115200);
// initialize serial for ESP module
Serial1.begin(9600);
// initialize ESP module
WiFi.init(&Serial1);
// check for the presence of the shield
if (WiFi.status() == WL_NO_SHIELD) {
Serial.println("WiFi shield not present");
// don't continue
while (true);
}
// attempt to connect to WiFi network
while ( status != WL_CONNECTED) {
Serial.print("Attempting to connect to WPA SSID: ");
Serial.println(ssid);
// Connect to WPA/WPA2 network
status = WiFi.begin(ssid, pass);
}
Serial.println("You're connected to the network");
printWifiStatus();
// start the web server on port 80
server.begin();
}
void loop()
{
// listen for incoming clients
WiFiEspClient client = server.available();
if (client) {
Serial.println("New client");
// an http request ends with a blank line
boolean currentLineIsBlank = true;
while (client.connected()) {
if (client.available()) {
char c = client.read();
Serial.write(c);
// if you've gotten to the end of the line (received a newline
// character) and the line is blank, the http request has ended,
// so you can send a reply
if (c == '\n' && currentLineIsBlank) {
Serial.println("Sending response");
// send a standard http response header
// use \r\n instead of many println statements to speedup data send
client.print(
"HTTP/1.1 200 OK\r\n"
"Content-Type: text/html\r\n"
"Connection: close\r\n" // the connection will be closed after completion of the response
"Refresh: 20\r\n" // refresh the page automatically every 20 sec
"\r\n");
client.print("<!DOCTYPE HTML>\r\n");
client.print("<html>\r\n");
client.print("<h1>Hello World!</h1>\r\n");
client.print("Requests received: ");
client.print(++reqCount);
client.print("<br>\r\n");
client.print("Analog input A0: ");
client.print(analogRead(0));
client.print("<br>\r\n");
client.print("</html>\r\n");
break;
}
if (c == '\n') {
// you're starting a new line
currentLineIsBlank = true;
}
else if (c != '\r') {
// you've gotten a character on the current line
currentLineIsBlank = false;
}
}
}
// give the web browser time to receive the data
delay(10);
// close the connection:
client.stop();
Serial.println("Client disconnected");
}
}
void printWifiStatus()
{
// print the SSID of the network you're attached to
Serial.print("SSID: ");
Serial.println(WiFi.SSID());
// print your WiFi shield's IP address
IPAddress ip = WiFi.localIP();
Serial.print("IP Address: ");
Serial.println(ip);
// print where to go in the browser
Serial.println();
Serial.print("To see this page in action, open a browser to http://");
Serial.println(ip);
Serial.println();
}

128
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/*
WiFiEsp example: WebServerAP
A simple web server that shows the value of the analog input
pins via a web page using an ESP8266 module.
This sketch will start an access point and print the IP address of your
ESP8266 module to the Serial monitor. From there, you can open
that address in a web browser to display the web page.
The web page will be automatically refreshed each 20 seconds.
For more details see: http://yaab-arduino.blogspot.com/p/wifiesp.html
*/
#include "WiFiEsp.h"
// Emulate Serial1 on pins 6/7 if not present
#ifndef HAVE_HWSERIAL1
#include "SoftwareSerial.h"
SoftwareSerial Serial1(6, 7); // RX, TX
#endif
char ssid[] = "TwimEsp"; // your network SSID (name)
char pass[] = "12345678"; // your network password
int status = WL_IDLE_STATUS; // the Wifi radio's status
int reqCount = 0; // number of requests received
WiFiEspServer server(80);
// use a ring buffer to increase speed and reduce memory allocation
RingBuffer buf(8);
void setup()
{
Serial.begin(115200); // initialize serial for debugging
Serial1.begin(9600); // initialize serial for ESP module
WiFi.init(&Serial1); // initialize ESP module
// check for the presence of the shield
if (WiFi.status() == WL_NO_SHIELD) {
Serial.println("WiFi shield not present");
while (true); // don't continue
}
Serial.print("Attempting to start AP ");
Serial.println(ssid);
// uncomment these two lines if you want to set the IP address of the AP
//IPAddress localIp(192, 168, 111, 111);
//WiFi.configAP(localIp);
// start access point
status = WiFi.beginAP(ssid, 10, pass, ENC_TYPE_WPA2_PSK);
Serial.println("Access point started");
printWifiStatus();
// start the web server on port 80
server.begin();
Serial.println("Server started");
}
void loop()
{
WiFiEspClient client = server.available(); // listen for incoming clients
if (client) { // if you get a client,
Serial.println("New client"); // print a message out the serial port
buf.init(); // initialize the circular buffer
while (client.connected()) { // loop while the client's connected
if (client.available()) { // if there's bytes to read from the client,
char c = client.read(); // read a byte, then
buf.push(c); // push it to the ring buffer
// you got two newline characters in a row
// that's the end of the HTTP request, so send a response
if (buf.endsWith("\r\n\r\n")) {
sendHttpResponse(client);
break;
}
}
}
// give the web browser time to receive the data
delay(10);
// close the connection
client.stop();
Serial.println("Client disconnected");
}
}
void sendHttpResponse(WiFiEspClient client)
{
client.print(
"HTTP/1.1 200 OK\r\n"
"Content-Type: text/html\r\n"
"Connection: close\r\n" // the connection will be closed after completion of the response
"Refresh: 20\r\n" // refresh the page automatically every 20 sec
"\r\n");
client.print("<!DOCTYPE HTML>\r\n");
client.print("<html>\r\n");
client.print("<h1>Hello World!</h1>\r\n");
client.print("Requests received: ");
client.print(++reqCount);
client.print("<br>\r\n");
client.print("Analog input A0: ");
client.print(analogRead(0));
client.print("<br>\r\n");
client.print("</html>\r\n");
}
void printWifiStatus()
{
// print your WiFi shield's IP address
IPAddress ip = WiFi.localIP();
Serial.print("IP Address: ");
Serial.println(ip);
// print where to go in the browser
Serial.println();
Serial.print("To see this page in action, connect to ");
Serial.print(ssid);
Serial.print(" and open a browser to http://");
Serial.println(ip);
Serial.println();
}

142
lib/WiFiEsp/examples/WebServerLed/WebServerLed.ino Normal file
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/*
WiFiEsp example: WebServerLed
A simple web server that lets you turn on and of an LED via a web page.
This sketch will print the IP address of your ESP8266 module (once connected)
to the Serial monitor. From there, you can open that address in a web browser
to turn on and off the LED on pin 13.
For more details see: http://yaab-arduino.blogspot.com/p/wifiesp.html
*/
#include "WiFiEsp.h"
// Emulate Serial1 on pins 6/7 if not present
#ifndef HAVE_HWSERIAL1
#include "SoftwareSerial.h"
SoftwareSerial Serial1(6, 7); // RX, TX
#endif
char ssid[] = "Twim"; // your network SSID (name)
char pass[] = "12345678"; // your network password
int status = WL_IDLE_STATUS;
int ledStatus = LOW;
WiFiEspServer server(80);
// use a ring buffer to increase speed and reduce memory allocation
RingBuffer buf(8);
void setup()
{
pinMode(LED_BUILTIN, OUTPUT); // initialize digital pin LED_BUILTIN as an output.
Serial.begin(115200); // initialize serial for debugging
Serial1.begin(9600); // initialize serial for ESP module
WiFi.init(&Serial1); // initialize ESP module
// check for the presence of the shield
if (WiFi.status() == WL_NO_SHIELD) {
Serial.println("WiFi shield not present");
// don't continue
while (true);
}
// attempt to connect to WiFi network
while (status != WL_CONNECTED) {
Serial.print("Attempting to connect to WPA SSID: ");
Serial.println(ssid);
// Connect to WPA/WPA2 network
status = WiFi.begin(ssid, pass);
}
Serial.println("You're connected to the network");
printWifiStatus();
// start the web server on port 80
server.begin();
}
void loop()
{
WiFiEspClient client = server.available(); // listen for incoming clients
if (client) { // if you get a client,
Serial.println("New client"); // print a message out the serial port
buf.init(); // initialize the circular buffer
while (client.connected()) { // loop while the client's connected
if (client.available()) { // if there's bytes to read from the client,
char c = client.read(); // read a byte, then
buf.push(c); // push it to the ring buffer
// printing the stream to the serial monitor will slow down
// the receiving of data from the ESP filling the serial buffer
//Serial.write(c);
// you got two newline characters in a row
// that's the end of the HTTP request, so send a response
if (buf.endsWith("\r\n\r\n")) {
sendHttpResponse(client);
break;
}
// Check to see if the client request was "GET /H" or "GET /L":
if (buf.endsWith("GET /H")) {
Serial.println("Turn led ON");
ledStatus = HIGH;
digitalWrite(LED_BUILTIN, HIGH); // turn the LED on (HIGH is the voltage level)
}
else if (buf.endsWith("GET /L")) {
Serial.println("Turn led OFF");
ledStatus = LOW;
digitalWrite(LED_BUILTIN, LOW); // turn the LED off by making the voltage LOW
}
}
}
// close the connection
client.stop();
Serial.println("Client disconnected");
}
}
void sendHttpResponse(WiFiEspClient client)
{
// HTTP headers always start with a response code (e.g. HTTP/1.1 200 OK)
// and a content-type so the client knows what's coming, then a blank line:
client.println("HTTP/1.1 200 OK");
client.println("Content-type:text/html");
client.println();
// the content of the HTTP response follows the header:
client.print("The LED is ");
client.print(ledStatus);
client.println("<br>");
client.println("<br>");
client.println("Click <a href=\"/H\">here</a> turn the LED on<br>");
client.println("Click <a href=\"/L\">here</a> turn the LED off<br>");
// The HTTP response ends with another blank line:
client.println();
}
void printWifiStatus()
{
// print the SSID of the network you're attached to
Serial.print("SSID: ");
Serial.println(WiFi.SSID());
// print your WiFi shield's IP address
IPAddress ip = WiFi.localIP();
Serial.print("IP Address: ");
Serial.println(ip);
// print where to go in the browser
Serial.println();
Serial.print("To see this page in action, open a browser to http://");
Serial.println(ip);
Serial.println();
}

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#######################################
# Syntax Coloring Map For WiFiEsp
#######################################
#######################################
# Library (KEYWORD3)
#######################################
WiFiEsp KEYWORD3
#######################################
# Datatypes (KEYWORD1)
#######################################
WiFiEspClient KEYWORD1
WiFiEspServer KEYWORD1
WiFiEspUDP KEYWORD1
RingBuffer KEYWORD1
#######################################
# Methods and Functions (KEYWORD2)
#######################################
firmwareVersion KEYWORD2
status KEYWORD2
connect KEYWORD2
write KEYWORD2
available KEYWORD2
config KEYWORD2
setDNS KEYWORD2
read KEYWORD2
flush KEYWORD2
stop KEYWORD2
connected KEYWORD2
begin KEYWORD2
disconnect KEYWORD2
macAddress KEYWORD2
localIP KEYWORD2
subnetMask KEYWORD2
gatewayIP KEYWORD2
scanNetworks KEYWORD2
SSID KEYWORD2
BSSID KEYWORD2
RSSI KEYWORD2
encryptionType KEYWORD2
getResult KEYWORD2
getSocket KEYWORD2
beginPacket KEYWORD2
endPacket KEYWORD2
parsePacket KEYWORD2
remoteIP KEYWORD2
remotePort KEYWORD2
#######################################
# Constants (LITERAL1)
#######################################

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lib/WiFiEsp/library.properties Normal file
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name=WiFiEsp
version=2.2.2
author=bportaluri
maintainer=Bruno Portaluri <bportaluri@gmail.com>
sentence=Arduino WiFi library for ESP8266
paragraph=Arduino WiFi library for ESP8266. Works only with SDK version 1.1.1 and above (AT version 0.25 and above).
category=Other
url=https://github.com/bportaluri/WiFiEsp
architectures=*

233
lib/WiFiEsp/src/WiFiEsp.cpp Normal file
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/*--------------------------------------------------------------------
This file is part of the Arduino WiFiEsp library.
The Arduino WiFiEsp library is free software: you can redistribute it
and/or modify it under the terms of the GNU General Public License as
published by the Free Software Foundation, either version 3 of the
License, or (at your option) any later version.
The Arduino WiFiEsp library is distributed in the hope that it will be
useful, but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with The Arduino WiFiEsp library. If not, see
<http://www.gnu.org/licenses/>.
--------------------------------------------------------------------*/
#include "WiFiEsp.h"
int16_t WiFiEspClass::_state[MAX_SOCK_NUM] = { NA_STATE, NA_STATE, NA_STATE, NA_STATE };
uint16_t WiFiEspClass::_server_port[MAX_SOCK_NUM] = { 0, 0, 0, 0 };
uint8_t WiFiEspClass::espMode = 0;
WiFiEspClass::WiFiEspClass()
{
}
void WiFiEspClass::init(Stream* espSerial)
{
LOGINFO(F("Initializing ESP module"));
EspDrv::wifiDriverInit(espSerial);
}
char* WiFiEspClass::firmwareVersion()
{
return EspDrv::getFwVersion();
}
int WiFiEspClass::begin(const char* ssid, const char* passphrase)
{
espMode = 1;
if (EspDrv::wifiConnect(ssid, passphrase))
return WL_CONNECTED;
return WL_CONNECT_FAILED;
}
int WiFiEspClass::beginAP(const char* ssid, uint8_t channel, const char* pwd, uint8_t enc, bool apOnly)
{
if(apOnly)
espMode = 2;
else
espMode = 3;
if (EspDrv::wifiStartAP(ssid, pwd, channel, enc, espMode))
return WL_CONNECTED;
return WL_CONNECT_FAILED;
}
int WiFiEspClass::beginAP(const char* ssid)
{
return beginAP(ssid, 10, "", 0);
}
int WiFiEspClass::beginAP(const char* ssid, uint8_t channel)
{
return beginAP(ssid, channel, "", 0);
}
void WiFiEspClass::config(IPAddress ip)
{
EspDrv::config(ip);
}
void WiFiEspClass::configAP(IPAddress ip)
{
EspDrv::configAP(ip);
}
int WiFiEspClass::disconnect()
{
return EspDrv::disconnect();
}
uint8_t* WiFiEspClass::macAddress(uint8_t* mac)
{
// TODO we don't need _mac variable
uint8_t* _mac = EspDrv::getMacAddress();
memcpy(mac, _mac, WL_MAC_ADDR_LENGTH);
return mac;
}
IPAddress WiFiEspClass::localIP()
{
IPAddress ret;
if(espMode==1)
EspDrv::getIpAddress(ret);
else
EspDrv::getIpAddressAP(ret);
return ret;
}
IPAddress WiFiEspClass::subnetMask()
{
IPAddress mask;
if(espMode==1)
EspDrv::getNetmask(mask);
return mask;
}
IPAddress WiFiEspClass::gatewayIP()
{
IPAddress gw;
if(espMode==1)
EspDrv::getGateway(gw);
return gw;
}
char* WiFiEspClass::SSID()
{
return EspDrv::getCurrentSSID();
}
uint8_t* WiFiEspClass::BSSID(uint8_t* bssid)
{
// TODO we don't need _bssid
uint8_t* _bssid = EspDrv::getCurrentBSSID();
memcpy(bssid, _bssid, WL_MAC_ADDR_LENGTH);
return bssid;
}
int32_t WiFiEspClass::RSSI()
{
return EspDrv::getCurrentRSSI();
}
int8_t WiFiEspClass::scanNetworks()
{
return EspDrv::getScanNetworks();
}
char* WiFiEspClass::SSID(uint8_t networkItem)
{
return EspDrv::getSSIDNetoworks(networkItem);
}
int32_t WiFiEspClass::RSSI(uint8_t networkItem)
{
return EspDrv::getRSSINetoworks(networkItem);
}
uint8_t WiFiEspClass::encryptionType(uint8_t networkItem)
{
return EspDrv::getEncTypeNetowrks(networkItem);
}
uint8_t WiFiEspClass::status()
{
return EspDrv::getConnectionStatus();
}
////////////////////////////////////////////////////////////////////////////
// Non standard methods
////////////////////////////////////////////////////////////////////////////
void WiFiEspClass::reset(void)
{
EspDrv::reset();
}
/*
void ESP8266::hardReset(void)
{
connected = false;
strcpy(ip, "");
digitalWrite(ESP8266_RST, LOW);
delay(ESP8266_HARD_RESET_DURATION);
digitalWrite(ESP8266_RST, HIGH);
delay(ESP8266_HARD_RESET_DURATION);
}
*/
bool WiFiEspClass::ping(const char *host)
{
return EspDrv::ping(host);
}
uint8_t WiFiEspClass::getFreeSocket()
{
// ESP Module assigns socket numbers in ascending order, so we will assign them in descending order
for (int i = MAX_SOCK_NUM - 1; i >= 0; i--)
{
if (_state[i] == NA_STATE)
{
return i;
}
}
return SOCK_NOT_AVAIL;
}
void WiFiEspClass::allocateSocket(uint8_t sock)
{
_state[sock] = sock;
}
void WiFiEspClass::releaseSocket(uint8_t sock)
{
_state[sock] = NA_STATE;
}
WiFiEspClass WiFi;

274
lib/WiFiEsp/src/WiFiEsp.h Normal file
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/*--------------------------------------------------------------------
This file is part of the Arduino WiFiEsp library.
The Arduino WiFiEsp library is free software: you can redistribute it
and/or modify it under the terms of the GNU General Public License as
published by the Free Software Foundation, either version 3 of the
License, or (at your option) any later version.
The Arduino WiFiEsp library is distributed in the hope that it will be
useful, but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with The Arduino WiFiEsp library. If not, see
<http://www.gnu.org/licenses/>.
--------------------------------------------------------------------*/
#ifndef WiFiEsp_h
#define WiFiEsp_h
#include <Arduino.h>
#include <Stream.h>
#include <IPAddress.h>
#include <inttypes.h>
#include "WiFiEspClient.h"
#include "WiFiEspServer.h"
#include "utility/EspDrv.h"
#include "utility/RingBuffer.h"
#include "utility/debug.h"
class WiFiEspClass
{
public:
static int16_t _state[MAX_SOCK_NUM];
static uint16_t _server_port[MAX_SOCK_NUM];
WiFiEspClass();
/**
* Initialize the ESP module.
*
* param espSerial: the serial interface (HW or SW) used to communicate with the ESP module
*/
static void init(Stream* espSerial);
/**
* Get firmware version
*/
static char* firmwareVersion();
// NOT IMPLEMENTED
//int begin(char* ssid);
// NOT IMPLEMENTED
//int begin(char* ssid, uint8_t key_idx, const char* key);
/**
* Start Wifi connection with passphrase
* the most secure supported mode will be automatically selected
*
* param ssid: Pointer to the SSID string.
* param passphrase: Passphrase. Valid characters in a passphrase
* must be between ASCII 32-126 (decimal).
*/
int begin(const char* ssid, const char* passphrase);
/**
* Change Ip configuration settings disabling the DHCP client
*
* param local_ip: Static ip configuration
*/
void config(IPAddress local_ip);
// NOT IMPLEMENTED
//void config(IPAddress local_ip, IPAddress dns_server);
// NOT IMPLEMENTED
//void config(IPAddress local_ip, IPAddress dns_server, IPAddress gateway);
// NOT IMPLEMENTED
//void config(IPAddress local_ip, IPAddress dns_server, IPAddress gateway, IPAddress subnet);
// NOT IMPLEMENTED
//void setDNS(IPAddress dns_server1);
// NOT IMPLEMENTED
//void setDNS(IPAddress dns_server1, IPAddress dns_server2);
/**
* Disconnect from the network
*
* return: one value of wl_status_t enum
*/
int disconnect(void);
/**
* Get the interface MAC address.
*
* return: pointer to uint8_t array with length WL_MAC_ADDR_LENGTH
*/
uint8_t* macAddress(uint8_t* mac);
/**
* Get the interface IP address.
*
* return: Ip address value
*/
IPAddress localIP();
/**
* Get the interface subnet mask address.
*
* return: subnet mask address value
*/
IPAddress subnetMask();
/**
* Get the gateway ip address.
*
* return: gateway ip address value
*/
IPAddress gatewayIP();
/**
* Return the current SSID associated with the network
*
* return: ssid string
*/
char* SSID();
/**
* Return the current BSSID associated with the network.
* It is the MAC address of the Access Point
*
* return: pointer to uint8_t array with length WL_MAC_ADDR_LENGTH
*/
uint8_t* BSSID(uint8_t* bssid);
/**
* Return the current RSSI /Received Signal Strength in dBm)
* associated with the network
*
* return: signed value
*/
int32_t RSSI();
/**
* Return Connection status.
*
* return: one of the value defined in wl_status_t
* see https://www.arduino.cc/en/Reference/WiFiStatus
*/
uint8_t status();
/*
* Return the Encryption Type associated with the network
*
* return: one value of wl_enc_type enum
*/
//uint8_t encryptionType();
/*
* Start scan WiFi networks available
*
* return: Number of discovered networks
*/
int8_t scanNetworks();
/*
* Return the SSID discovered during the network scan.
*
* param networkItem: specify from which network item want to get the information
*
* return: ssid string of the specified item on the networks scanned list
*/
char* SSID(uint8_t networkItem);
/*
* Return the encryption type of the networks discovered during the scanNetworks
*
* param networkItem: specify from which network item want to get the information
*
* return: encryption type (enum wl_enc_type) of the specified item on the networks scanned list
*/
uint8_t encryptionType(uint8_t networkItem);
/*
* Return the RSSI of the networks discovered during the scanNetworks
*
* param networkItem: specify from which network item want to get the information
*
* return: signed value of RSSI of the specified item on the networks scanned list
*/
int32_t RSSI(uint8_t networkItem);
// NOT IMPLEMENTED
//int hostByName(const char* aHostname, IPAddress& aResult);
////////////////////////////////////////////////////////////////////////////
// Non standard methods
////////////////////////////////////////////////////////////////////////////
/**
* Start the ESP access point.
*
* param ssid: Pointer to the SSID string.
* param channel: WiFi channel (1-14)
* param pwd: Passphrase. Valid characters in a passphrase
* must be between ASCII 32-126 (decimal).
* param enc: encryption type (enum wl_enc_type)
* param apOnly: Set to false if you want to run AP and Station modes simultaneously
*/
int beginAP(const char* ssid, uint8_t channel, const char* pwd, uint8_t enc, bool apOnly=true);
/*
* Start the ESP access point with open security.
*/
int beginAP(const char* ssid);
int beginAP(const char* ssid, uint8_t channel);
/**
* Change IP address of the AP
*
* param ip: Static ip configuration
*/
void configAP(IPAddress ip);
/**
* Restart the ESP module.
*/
void reset();
/**
* Ping a host.
*/
bool ping(const char *host);
friend class WiFiEspClient;
friend class WiFiEspServer;
friend class WiFiEspUDP;
private:
static uint8_t getFreeSocket();
static void allocateSocket(uint8_t sock);
static void releaseSocket(uint8_t sock);
static uint8_t espMode;
};
extern WiFiEspClass WiFi;
#endif

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/*--------------------------------------------------------------------
This file is part of the Arduino WiFiEsp library.
The Arduino WiFiEsp library is free software: you can redistribute it
and/or modify it under the terms of the GNU General Public License as
published by the Free Software Foundation, either version 3 of the
License, or (at your option) any later version.
The Arduino WiFiEsp library is distributed in the hope that it will be
useful, but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with The Arduino WiFiEsp library. If not, see
<http://www.gnu.org/licenses/>.
--------------------------------------------------------------------*/
#include <inttypes.h>
#include "WiFiEsp.h"
#include "WiFiEspClient.h"
#include "WiFiEspServer.h"
#include "utility/EspDrv.h"
#include "utility/debug.h"
WiFiEspClient::WiFiEspClient() : _sock(255)
{
}
WiFiEspClient::WiFiEspClient(uint8_t sock) : _sock(sock)
{
}
////////////////////////////////////////////////////////////////////////////////
// Overrided Print methods
////////////////////////////////////////////////////////////////////////////////
// the standard print method will call write for each character in the buffer
// this is very slow on ESP
size_t WiFiEspClient::print(const __FlashStringHelper *ifsh)
{
printFSH(ifsh, false);
}
// if we do override this, the standard println will call the print
// method twice
size_t WiFiEspClient::println(const __FlashStringHelper *ifsh)
{
printFSH(ifsh, true);
}
////////////////////////////////////////////////////////////////////////////////
// Implementation of Client virtual methods
////////////////////////////////////////////////////////////////////////////////
int WiFiEspClient::connectSSL(const char* host, uint16_t port)
{
return connect(host, port, SSL_MODE);
}
int WiFiEspClient::connectSSL(IPAddress ip, uint16_t port)
{
char s[16];
sprintf_P(s, PSTR("%d.%d.%d.%d"), ip[0], ip[1], ip[2], ip[3]);
return connect(s, port, SSL_MODE);
}
int WiFiEspClient::connect(const char* host, uint16_t port)
{
return connect(host, port, TCP_MODE);
}
int WiFiEspClient::connect(IPAddress ip, uint16_t port)
{
char s[16];
sprintf_P(s, PSTR("%d.%d.%d.%d"), ip[0], ip[1], ip[2], ip[3]);
return connect(s, port, TCP_MODE);
}
/* Private method */
int WiFiEspClient::connect(const char* host, uint16_t port, uint8_t protMode)
{
LOGINFO1(F("Connecting to"), host);
_sock = WiFiEspClass::getFreeSocket();
if (_sock != NO_SOCKET_AVAIL)
{
if (!EspDrv::startClient(host, port, _sock, protMode))
return 0;
WiFiEspClass::allocateSocket(_sock);
}
else
{
LOGERROR(F("No socket available"));
return 0;
}
return 1;
}
size_t WiFiEspClient::write(uint8_t b)
{
return write(&b, 1);
}
size_t WiFiEspClient::write(const uint8_t *buf, size_t size)
{
if (_sock >= MAX_SOCK_NUM or size==0)
{
setWriteError();
return 0;
}
bool r = EspDrv::sendData(_sock, buf, size);
if (!r)
{
setWriteError();
LOGERROR1(F("Failed to write to socket"), _sock);
delay(4000);
stop();
return 0;
}
return size;
}
int WiFiEspClient::available()
{
if (_sock != 255)
{
int bytes = EspDrv::availData(_sock);
if (bytes>0)
{
return bytes;
}
}
return 0;
}
int WiFiEspClient::read()
{
uint8_t b;
if (!available())
return -1;
bool connClose = false;
EspDrv::getData(_sock, &b, false, &connClose);
if (connClose)
{
WiFiEspClass::releaseSocket(_sock);
_sock = 255;
}
return b;
}
int WiFiEspClient::read(uint8_t* buf, size_t size)
{
if (!available())
return -1;
return EspDrv::getDataBuf(_sock, buf, size);
}
int WiFiEspClient::peek()
{
uint8_t b;
if (!available())
return -1;
bool connClose = false;
EspDrv::getData(_sock, &b, true, &connClose);
if (connClose)
{
WiFiEspClass::releaseSocket(_sock);
_sock = 255;
}
return b;
}
void WiFiEspClient::flush()
{
while (available())
read();
}
void WiFiEspClient::stop()
{
if (_sock == 255)
return;
LOGINFO1(F("Disconnecting "), _sock);
EspDrv::stopClient(_sock);
WiFiEspClass::releaseSocket(_sock);
_sock = 255;
}
uint8_t WiFiEspClient::connected()
{
return (status() == ESTABLISHED);
}
WiFiEspClient::operator bool()
{
return _sock != 255;
}
////////////////////////////////////////////////////////////////////////////////
// Additional WiFi standard methods
////////////////////////////////////////////////////////////////////////////////
uint8_t WiFiEspClient::status()
{
if (_sock == 255)
{
return CLOSED;
}
if (EspDrv::availData(_sock))
{
return ESTABLISHED;
}
if (EspDrv::getClientState(_sock))
{
return ESTABLISHED;
}
WiFiEspClass::releaseSocket(_sock);
_sock = 255;
return CLOSED;
}
IPAddress WiFiEspClient::remoteIP()
{
IPAddress ret;
EspDrv::getRemoteIpAddress(ret);
return ret;
}
////////////////////////////////////////////////////////////////////////////////
// Private Methods
////////////////////////////////////////////////////////////////////////////////
size_t WiFiEspClient::printFSH(const __FlashStringHelper *ifsh, bool appendCrLf)
{
size_t size = strlen_P((char*)ifsh);
if (_sock >= MAX_SOCK_NUM or size==0)
{
setWriteError();
return 0;
}
bool r = EspDrv::sendData(_sock, ifsh, size, appendCrLf);
if (!r)
{
setWriteError();
LOGERROR1(F("Failed to write to socket"), _sock);
delay(4000);
stop();
return 0;
}
return size;
}

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/*--------------------------------------------------------------------
This file is part of the Arduino WiFiEsp library.
The Arduino WiFiEsp library is free software: you can redistribute it
and/or modify it under the terms of the GNU General Public License as
published by the Free Software Foundation, either version 3 of the
License, or (at your option) any later version.
The Arduino WiFiEsp library is distributed in the hope that it will be
useful, but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with The Arduino WiFiEsp library. If not, see
<http://www.gnu.org/licenses/>.
--------------------------------------------------------------------*/
#ifndef WiFiEspClient_h
#define WiFiEspClient_h
#include "Arduino.h"
#include "Print.h"
#include "Client.h"
#include "IPAddress.h"
class WiFiEspClient : public Client
{
public:
WiFiEspClient();
WiFiEspClient(uint8_t sock);
// override Print.print method
size_t print(const __FlashStringHelper *ifsh);
size_t println(const __FlashStringHelper *ifsh);
/*
* Connect to the specified IP address and port. The return value indicates success or failure.
* Returns true if the connection succeeds, false if not.
*/
virtual int connect(IPAddress ip, uint16_t port);
/*
* Connect to the specified host and port. The return value indicates success or failure.
* Returns true if the connection succeeds, false if not.
*/
virtual int connect(const char *host, uint16_t port);
/*
* Connect to the specified IP address and port using SSL. The return value indicates success or failure.
* Returns true if the connection succeeds, false if not.
*/
int connectSSL(IPAddress ip, uint16_t port);
/*
* Connect to the specified host and port using SSL. The return value indicates success or failure.
* Returns true if the connection succeeds, false if not.
*/
int connectSSL(const char* host, uint16_t port);
/*
* Write a character to the server the client is connected to.
* Returns the number of characters written.
*/
virtual size_t write(uint8_t);
/*
* Write data to the server the client is connected to.
* Returns the number of characters written.
*/
virtual size_t write(const uint8_t *buf, size_t size);
virtual int available();
/*
* Read the next byte received from the server the client is connected to (after the last call to read()).
* Returns the next byte (or character), or -1 if none is available.
*/
virtual int read();
virtual int read(uint8_t *buf, size_t size);
/*
* Returns the next byte (character) of incoming serial data without removing it from the internal serial buffer.
*/
virtual int peek();
/*
* Discard any bytes that have been written to the client but not yet read.
*/
virtual void flush();
/*
* Disconnect from the server.
*/
virtual void stop();
/*
* Whether or not the client is connected.
* Note that a client is considered connected if the connection has been closed but there is still unread data.
* Returns true if the client is connected, false if not.
*/
virtual uint8_t connected();
uint8_t status();
virtual operator bool();
// needed to correctly handle overriding
// see http://stackoverflow.com/questions/888235/overriding-a-bases-overloaded-function-in-c
using Print::write;
using Print::print;
using Print::println;
/*
* Returns the remote IP address.
*/
IPAddress remoteIP();
friend class WiFiEspServer;
private:
uint8_t _sock; // connection id
int connect(const char* host, uint16_t port, uint8_t protMode);
size_t printFSH(const __FlashStringHelper *ifsh, bool appendCrLf);
};
#endif

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/*--------------------------------------------------------------------
This file is part of the Arduino WiFiEsp library.
The Arduino WiFiEsp library is free software: you can redistribute it
and/or modify it under the terms of the GNU General Public License as
published by the Free Software Foundation, either version 3 of the
License, or (at your option) any later version.
The Arduino WiFiEsp library is distributed in the hope that it will be
useful, but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with The Arduino WiFiEsp library. If not, see
<http://www.gnu.org/licenses/>.
--------------------------------------------------------------------*/
#include "WiFiEspServer.h"
#include "utility/EspDrv.h"
#include "utility/debug.h"
WiFiEspServer::WiFiEspServer(uint16_t port)
{
_port = port;
}
void WiFiEspServer::begin()
{
LOGDEBUG(F("Starting server"));
/* The ESP Module only allows socket 1 to be used for the server */
#if 0
_sock = WiFiEspClass::getFreeSocket();
if (_sock == SOCK_NOT_AVAIL)
{
LOGERROR(F("No socket available for server"));
return;
}
#else
_sock = 1; // If this is already in use, the startServer attempt will fail
#endif
WiFiEspClass::allocateSocket(_sock);
_started = EspDrv::startServer(_port, _sock);
if (_started)
{
LOGINFO1(F("Server started on port"), _port);
}
else
{
LOGERROR(F("Server failed to start"));
}
}
WiFiEspClient WiFiEspServer::available(byte* status)
{
// TODO the original method seems to handle automatic server restart
int bytes = EspDrv::availData(0);
if (bytes>0)
{
LOGINFO1(F("New client"), EspDrv::_connId);
WiFiEspClass::allocateSocket(EspDrv::_connId);
WiFiEspClient client(EspDrv::_connId);
return client;
}
return WiFiEspClient(255);
}
uint8_t WiFiEspServer::status()
{
return EspDrv::getServerState(0);
}
size_t WiFiEspServer::write(uint8_t b)
{
return write(&b, 1);
}
size_t WiFiEspServer::write(const uint8_t *buffer, size_t size)
{
size_t n = 0;
for (int sock = 0; sock < MAX_SOCK_NUM; sock++)
{
if (WiFiEspClass::_state[sock] != 0)
{
WiFiEspClient client(sock);
n += client.write(buffer, size);
}
}
return n;
}

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/*--------------------------------------------------------------------
This file is part of the Arduino WiFiEsp library.
The Arduino WiFiEsp library is free software: you can redistribute it
and/or modify it under the terms of the GNU General Public License as
published by the Free Software Foundation, either version 3 of the
License, or (at your option) any later version.
The Arduino WiFiEsp library is distributed in the hope that it will be
useful, but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with The Arduino WiFiEsp library. If not, see
<http://www.gnu.org/licenses/>.
--------------------------------------------------------------------*/
#ifndef WiFiEspServer_h
#define WiFiEspServer_h
#include <Server.h>
#include "WiFiEsp.h"
class WiFiEspClient;
class WiFiEspServer : public Server
{
public:
WiFiEspServer(uint16_t port);
/*
* Gets a client that is connected to the server and has data available for reading.
* The connection persists when the returned client object goes out of scope; you can close it by calling client.stop().
* Returns a Client object; if no Client has data available for reading, this object will evaluate to false in an if-statement.
*/
WiFiEspClient available(uint8_t* status = NULL);
/*
* Start the TCP server
*/
void begin();
virtual size_t write(uint8_t);
virtual size_t write(const uint8_t *buf, size_t size);
uint8_t status();
using Print::write;
private:
uint16_t _port;
uint8_t _sock;
bool _started;
};
#endif

193
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/*--------------------------------------------------------------------
This file is part of the Arduino WiFiEsp library.
The Arduino WiFiEsp library is free software: you can redistribute it
and/or modify it under the terms of the GNU General Public License as
published by the Free Software Foundation, either version 3 of the
License, or (at your option) any later version.
The Arduino WiFiEsp library is distributed in the hope that it will be
useful, but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with The Arduino WiFiEsp library. If not, see
<http://www.gnu.org/licenses/>.
--------------------------------------------------------------------*/
#include "WiFiEsp.h"
#include "WiFiEspUdp.h"
#include "utility/EspDrv.h"
#include "utility/debug.h"
/* Constructor */
WiFiEspUDP::WiFiEspUDP() : _sock(NO_SOCKET_AVAIL) {}
/* Start WiFiUDP socket, listening at local port PORT */
uint8_t WiFiEspUDP::begin(uint16_t port)
{
uint8_t sock = WiFiEspClass::getFreeSocket();
if (sock != NO_SOCKET_AVAIL)
{
EspDrv::startClient("0", port, sock, UDP_MODE);
WiFiEspClass::allocateSocket(sock); // allocating the socket for the listener
WiFiEspClass::_server_port[sock] = port;
_sock = sock;
_port = port;
return 1;
}
return 0;
}
/* return number of bytes available in the current packet,
will return zero if parsePacket hasn't been called yet */
int WiFiEspUDP::available()
{
if (_sock != NO_SOCKET_AVAIL)
{
int bytes = EspDrv::availData(_sock);
if (bytes>0)
{
return bytes;
}
}
return 0;
}
/* Release any resources being used by this WiFiUDP instance */
void WiFiEspUDP::stop()
{
if (_sock == NO_SOCKET_AVAIL)
return;
// Discard data that might be in the incoming buffer
flush();
// Stop the listener and return the socket to the pool
EspDrv::stopClient(_sock);
WiFiEspClass::_state[_sock] = NA_STATE;
WiFiEspClass::_server_port[_sock] = 0;
_sock = NO_SOCKET_AVAIL;
}
int WiFiEspUDP::beginPacket(const char *host, uint16_t port)
{
if (_sock == NO_SOCKET_AVAIL)
_sock = WiFiEspClass::getFreeSocket();
if (_sock != NO_SOCKET_AVAIL)
{
//EspDrv::startClient(host, port, _sock, UDP_MODE);
_remotePort = port;
strcpy(_remoteHost, host);
WiFiEspClass::allocateSocket(_sock);
return 1;
}
return 0;
}
int WiFiEspUDP::beginPacket(IPAddress ip, uint16_t port)
{
char s[18];
sprintf_P(s, PSTR("%d.%d.%d.%d"), ip[0], ip[1], ip[2], ip[3]);
return beginPacket(s, port);
}
int WiFiEspUDP::endPacket()
{
return 1; //ServerDrv::sendUdpData(_sock);
}
size_t WiFiEspUDP::write(uint8_t byte)
{
return write(&byte, 1);
}
size_t WiFiEspUDP::write(const uint8_t *buffer, size_t size)
{
bool r = EspDrv::sendDataUdp(_sock, _remoteHost, _remotePort, buffer, size);
if (!r)
{
return 0;
}
return size;
}
int WiFiEspUDP::parsePacket()
{
return available();
}
int WiFiEspUDP::read()
{
uint8_t b;
if (!available())
return -1;
bool connClose = false;
// Read the data and handle the timeout condition
if (! EspDrv::getData(_sock, &b, false, &connClose))
return -1; // Timeout occured
return b;
}
int WiFiEspUDP::read(uint8_t* buf, size_t size)
{
if (!available())
return -1;
return EspDrv::getDataBuf(_sock, buf, size);
}
int WiFiEspUDP::peek()
{
uint8_t b;
if (!available())
return -1;
return b;
}
void WiFiEspUDP::flush()
{
// Discard all input data
int count = available();
while (count-- > 0)
read();
}
IPAddress WiFiEspUDP::remoteIP()
{
IPAddress ret;
EspDrv::getRemoteIpAddress(ret);
return ret;
}
uint16_t WiFiEspUDP::remotePort()
{
return EspDrv::getRemotePort();
}
////////////////////////////////////////////////////////////////////////////////
// Private Methods
////////////////////////////////////////////////////////////////////////////////

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/*--------------------------------------------------------------------
This file is part of the Arduino WiFiEsp library.
The Arduino WiFiEsp library is free software: you can redistribute it
and/or modify it under the terms of the GNU General Public License as
published by the Free Software Foundation, either version 3 of the
License, or (at your option) any later version.
The Arduino WiFiEsp library is distributed in the hope that it will be
useful, but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with The Arduino WiFiEsp library. If not, see
<http://www.gnu.org/licenses/>.
--------------------------------------------------------------------*/
#ifndef WiFiEspUdp_h
#define WiFiEspUdp_h
#include <Udp.h>
#define UDP_TX_PACKET_MAX_SIZE 24
class WiFiEspUDP : public UDP {
private:
uint8_t _sock; // socket ID for Wiz5100
uint16_t _port; // local port to listen on
uint16_t _remotePort;
char _remoteHost[30];
public:
WiFiEspUDP(); // Constructor
virtual uint8_t begin(uint16_t); // initialize, start listening on specified port. Returns 1 if successful, 0 if there are no sockets available to use
virtual void stop(); // Finish with the UDP socket
// Sending UDP packets
// Start building up a packet to send to the remote host specific in ip and port
// Returns 1 if successful, 0 if there was a problem with the supplied IP address or port
virtual int beginPacket(IPAddress ip, uint16_t port);
// Start building up a packet to send to the remote host specific in host and port
// Returns 1 if successful, 0 if there was a problem resolving the hostname or port
virtual int beginPacket(const char *host, uint16_t port);
// Finish off this packet and send it
// Returns 1 if the packet was sent successfully, 0 if there was an error
virtual int endPacket();
// Write a single byte into the packet
virtual size_t write(uint8_t);
// Write size bytes from buffer into the packet
virtual size_t write(const uint8_t *buffer, size_t size);
using Print::write;
// Start processing the next available incoming packet
// Returns the size of the packet in bytes, or 0 if no packets are available
virtual int parsePacket();
// Number of bytes remaining in the current packet
virtual int available();
// Read a single byte from the current packet
virtual int read();
// Read up to len bytes from the current packet and place them into buffer
// Returns the number of bytes read, or 0 if none are available
virtual int read(unsigned char* buffer, size_t len);
// Read up to len characters from the current packet and place them into buffer
// Returns the number of characters read, or 0 if none are available
virtual int read(char* buffer, size_t len) { return read((unsigned char*)buffer, len); };
// Return the next byte from the current packet without moving on to the next byte
virtual int peek();
virtual void flush(); // Finish reading the current packet
// Return the IP address of the host who sent the current incoming packet
virtual IPAddress remoteIP();
// Return the port of the host who sent the current incoming packet
virtual uint16_t remotePort();
friend class WiFiEspServer;
};
#endif

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lib/WiFiEsp/src/utility/EspDrv.h Normal file
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/*--------------------------------------------------------------------
This file is part of the Arduino WiFiEsp library.
The Arduino WiFiEsp library is free software: you can redistribute it
and/or modify it under the terms of the GNU General Public License as
published by the Free Software Foundation, either version 3 of the
License, or (at your option) any later version.
The Arduino WiFiEsp library is distributed in the hope that it will be
useful, but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with The Arduino WiFiEsp library. If not, see
<http://www.gnu.org/licenses/>.
--------------------------------------------------------------------*/
#ifndef EspDrv_h
#define EspDrv_h
#include "Stream.h"
#include "IPAddress.h"
#include "RingBuffer.h"
// Maximum size of a SSID
#define WL_SSID_MAX_LENGTH 32
// Size of a MAC-address or BSSID
#define WL_MAC_ADDR_LENGTH 6
// Size of a MAC-address or BSSID
#define WL_IPV4_LENGTH 4
// Maximum size of a SSID list
#define WL_NETWORKS_LIST_MAXNUM 10
// Maxmium number of socket
#define MAX_SOCK_NUM 4
// Socket not available constant
#define SOCK_NOT_AVAIL 255
// Default state value for Wifi state field
#define NA_STATE -1
#define WL_FW_VER_LENGTH 6
#define NO_SOCKET_AVAIL 255
// maximum size of AT command
#define CMD_BUFFER_SIZE 200
typedef enum eProtMode {TCP_MODE, UDP_MODE, SSL_MODE} tProtMode;
typedef enum {
WL_FAILURE = -1,
WL_SUCCESS = 1,
} wl_error_code_t;
/* Authentication modes */
enum wl_auth_mode {
AUTH_MODE_INVALID,
AUTH_MODE_AUTO,
AUTH_MODE_OPEN_SYSTEM,
AUTH_MODE_SHARED_KEY,
AUTH_MODE_WPA,
AUTH_MODE_WPA2,
AUTH_MODE_WPA_PSK,
AUTH_MODE_WPA2_PSK
};
typedef enum {
WL_NO_SHIELD = 255,
WL_IDLE_STATUS = 0,
//WL_NO_SSID_AVAIL,
//WL_SCAN_COMPLETED,
WL_CONNECTED,
WL_CONNECT_FAILED,
//WL_CONNECTION_LOST,
WL_DISCONNECTED
} wl_status_t;
/* Encryption modes */
enum wl_enc_type {
ENC_TYPE_NONE = 0,
ENC_TYPE_WEP = 1,
ENC_TYPE_WPA_PSK = 2,
ENC_TYPE_WPA2_PSK = 3,
ENC_TYPE_WPA_WPA2_PSK = 4
};
enum wl_tcp_state {
CLOSED = 0,
LISTEN = 1,
SYN_SENT = 2,
SYN_RCVD = 3,
ESTABLISHED = 4,
FIN_WAIT_1 = 5,
FIN_WAIT_2 = 6,
CLOSE_WAIT = 7,
CLOSING = 8,
LAST_ACK = 9,
TIME_WAIT = 10
};
class EspDrv
{
public:
static void wifiDriverInit(Stream *espSerial);
/* Start Wifi connection with passphrase
*
* param ssid: Pointer to the SSID string.
* param passphrase: Passphrase. Valid characters in a passphrase must be between ASCII 32-126 (decimal).
*/
static bool wifiConnect(const char* ssid, const char* passphrase);
/*
* Start the Access Point
*/
static bool wifiStartAP(const char* ssid, const char* pwd, uint8_t channel, uint8_t enc, uint8_t espMode);
/*
* Set ip configuration disabling dhcp client
*/
static void config(IPAddress local_ip);
/*
* Set ip configuration disabling dhcp client
*/
static void configAP(IPAddress local_ip);
/*
* Disconnect from the network
*
* return: WL_SUCCESS or WL_FAILURE
*/
static int8_t disconnect();
/*
*
*
* return: one value of wl_status_t enum
*/
static uint8_t getConnectionStatus();
/*
* Get the interface MAC address.
*
* return: pointer to uint8_t array with length WL_MAC_ADDR_LENGTH
*/
static uint8_t* getMacAddress();
/*
* Get the interface IP address.
*
* return: copy the ip address value in IPAddress object
*/
static void getIpAddress(IPAddress& ip);
static void getIpAddressAP(IPAddress& ip);
/*
* Get the interface IP netmask.
* This can be used to retrieve settings configured through DHCP.
*
* return: true if successful
*/
static bool getNetmask(IPAddress& mask);
/*
* Get the interface IP gateway.
* This can be used to retrieve settings configured through DHCP.
*
* return: true if successful
*/
static bool getGateway(IPAddress& mask);
/*
* Return the current SSID associated with the network
*
* return: ssid string
*/
static char* getCurrentSSID();
/*
* Return the current BSSID associated with the network.
* It is the MAC address of the Access Point
*
* return: pointer to uint8_t array with length WL_MAC_ADDR_LENGTH
*/
static uint8_t* getCurrentBSSID();
/*
* Return the current RSSI /Received Signal Strength in dBm)
* associated with the network
*
* return: signed value
*/
static int32_t getCurrentRSSI();
/*
* Get the networks available
*
* return: Number of discovered networks
*/
static uint8_t getScanNetworks();
/*
* Return the SSID discovered during the network scan.
*
* param networkItem: specify from which network item want to get the information
*
* return: ssid string of the specified item on the networks scanned list
*/
static char* getSSIDNetoworks(uint8_t networkItem);
/*
* Return the RSSI of the networks discovered during the scanNetworks
*
* param networkItem: specify from which network item want to get the information
*
* return: signed value of RSSI of the specified item on the networks scanned list
*/
static int32_t getRSSINetoworks(uint8_t networkItem);
/*
* Return the encryption type of the networks discovered during the scanNetworks
*
* param networkItem: specify from which network item want to get the information
*
* return: encryption type (enum wl_enc_type) of the specified item on the networks scanned list
*/
static uint8_t getEncTypeNetowrks(uint8_t networkItem);
/*
* Get the firmware version
*/
static char* getFwVersion();
////////////////////////////////////////////////////////////////////////////
// Client/Server methods
////////////////////////////////////////////////////////////////////////////
static bool startServer(uint16_t port, uint8_t sock);
static bool startClient(const char* host, uint16_t port, uint8_t sock, uint8_t protMode);
static void stopClient(uint8_t sock);
static uint8_t getServerState(uint8_t sock);
static uint8_t getClientState(uint8_t sock);
static bool getData(uint8_t connId, uint8_t *data, bool peek, bool* connClose);
static int getDataBuf(uint8_t connId, uint8_t *buf, uint16_t bufSize);
static bool sendData(uint8_t sock, const uint8_t *data, uint16_t len);
static bool sendData(uint8_t sock, const __FlashStringHelper *data, uint16_t len, bool appendCrLf=false);
static bool sendDataUdp(uint8_t sock, const char* host, uint16_t port, const uint8_t *data, uint16_t len);
static uint16_t availData(uint8_t connId);
static bool ping(const char *host);
static void reset();
static void getRemoteIpAddress(IPAddress& ip);
static uint16_t getRemotePort();
////////////////////////////////////////////////////////////////////////////////
private:
static Stream *espSerial;
static long _bufPos;
static uint8_t _connId;
static uint16_t _remotePort;
static uint8_t _remoteIp[WL_IPV4_LENGTH];
// firmware version string
static char fwVersion[WL_FW_VER_LENGTH];
// settings of requested network
static char _networkSsid[WL_NETWORKS_LIST_MAXNUM][WL_SSID_MAX_LENGTH];
static int32_t _networkRssi[WL_NETWORKS_LIST_MAXNUM];
static uint8_t _networkEncr[WL_NETWORKS_LIST_MAXNUM];
// settings of current selected network
static char _ssid[WL_SSID_MAX_LENGTH];
static uint8_t _bssid[WL_MAC_ADDR_LENGTH];
static uint8_t _mac[WL_MAC_ADDR_LENGTH];
static uint8_t _localIp[WL_IPV4_LENGTH];
// the ring buffer is used to search the tags in the stream
static RingBuffer ringBuf;
//static int sendCmd(const char* cmd, int timeout=1000);
static int sendCmd(const __FlashStringHelper* cmd, int timeout=1000);
static int sendCmd(const __FlashStringHelper* cmd, int timeout, ...);
static bool sendCmdGet(const __FlashStringHelper* cmd, const char* startTag, const char* endTag, char* outStr, int outStrLen);
static bool sendCmdGet(const __FlashStringHelper* cmd, const __FlashStringHelper* startTag, const __FlashStringHelper* endTag, char* outStr, int outStrLen);
static int readUntil(int timeout, const char* tag=NULL, bool findTags=true);
static void espEmptyBuf(bool warn=true);
static int timedRead();
friend class WiFiEsp;
friend class WiFiEspServer;
friend class WiFiEspClient;
friend class WiFiEspUdp;
};
extern EspDrv espDrv;
#endif

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/*--------------------------------------------------------------------
This file is part of the Arduino WiFiEsp library.
The Arduino WiFiEsp library is free software: you can redistribute it
and/or modify it under the terms of the GNU General Public License as
published by the Free Software Foundation, either version 3 of the
License, or (at your option) any later version.
The Arduino WiFiEsp library is distributed in the hope that it will be
useful, but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with The Arduino WiFiEsp library. If not, see
<http://www.gnu.org/licenses/>.
--------------------------------------------------------------------*/
#include "RingBuffer.h"
#include <Arduino.h>
RingBuffer::RingBuffer(unsigned int size)
{
_size = size;
// add one char to terminate the string
ringBuf = new char[size+1];
ringBufEnd = &ringBuf[size];
init();
}
RingBuffer::~RingBuffer() {}
void RingBuffer::reset()
{
ringBufP = ringBuf;
}
void RingBuffer::init()
{
ringBufP = ringBuf;
memset(ringBuf, 0, _size+1);
}
void RingBuffer::push(char c)
{
*ringBufP = c;
ringBufP++;
if (ringBufP>=ringBufEnd)
ringBufP = ringBuf;
}
bool RingBuffer::endsWith(const char* str)
{
int findStrLen = strlen(str);
// b is the start position into the ring buffer
char* b = ringBufP-findStrLen;
if(b < ringBuf)
b = b + _size;
char *p1 = (char*)&str[0];
char *p2 = p1 + findStrLen;
for(char *p=p1; p<p2; p++)
{
if(*p != *b)
return false;
b++;
if (b == ringBufEnd)
b=ringBuf;
}
return true;
}
void RingBuffer::getStr(char * destination, unsigned int skipChars)
{
int len = ringBufP-ringBuf-skipChars;
// copy buffer to destination string
strncpy(destination, ringBuf, len);
// terminate output string
//destination[len]=0;
}
void RingBuffer::getStrN(char * destination, unsigned int skipChars, unsigned int num)
{
int len = ringBufP-ringBuf-skipChars;
if (len>num)
len=num;
// copy buffer to destination string
strncpy(destination, ringBuf, len);
// terminate output string
//destination[len]=0;
}

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lib/WiFiEsp/src/utility/RingBuffer.h Normal file
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/*--------------------------------------------------------------------
This file is part of the Arduino WiFiEsp library.
The Arduino WiFiEsp library is free software: you can redistribute it
and/or modify it under the terms of the GNU General Public License as
published by the Free Software Foundation, either version 3 of the
License, or (at your option) any later version.
The Arduino WiFiEsp library is distributed in the hope that it will be
useful, but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with The Arduino WiFiEsp library. If not, see
<http://www.gnu.org/licenses/>.
--------------------------------------------------------------------*/
#ifndef RingBuffer_h
#define RingBuffer_h
class RingBuffer
{
public:
RingBuffer(unsigned int size);
~RingBuffer();
void reset();
void init();
void push(char c);
int getPos();
bool endsWith(const char* str);
void getStr(char * destination, unsigned int skipChars);
void getStrN(char * destination, unsigned int skipChars, unsigned int num);
private:
unsigned int _size;
char* ringBuf;
char* ringBufEnd;
char* ringBufP;
};
#endif

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lib/WiFiEsp/src/utility/debug.h Normal file
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/*--------------------------------------------------------------------
This file is part of the Arduino WiFiEsp library.
The Arduino WiFiEsp library is free software: you can redistribute it
and/or modify it under the terms of the GNU General Public License as
published by the Free Software Foundation, either version 3 of the
License, or (at your option) any later version.
The Arduino WiFiEsp library is distributed in the hope that it will be
useful, but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with The Arduino WiFiEsp library. If not, see
<http://www.gnu.org/licenses/>.
--------------------------------------------------------------------*/
#ifndef EspDebug_H
#define EspDebug_H
#include <stdio.h>
// Change _ESPLOGLEVEL_ to set tracing and logging verbosity
// 0: DISABLED: no logging
// 1: ERROR: errors
// 2: WARN: errors and warnings
// 3: INFO: errors, warnings and informational (default)
// 4: DEBUG: errors, warnings, informational and debug
#ifndef _ESPLOGLEVEL_
#define _ESPLOGLEVEL_ 2
#endif
#define LOGERROR(x) if(_ESPLOGLEVEL_>0) { Serial.print("[WiFiEsp] "); Serial.println(x); }
#define LOGERROR1(x,y) if(_ESPLOGLEVEL_>2) { Serial.print("[WiFiEsp] "); Serial.print(x); Serial.print(" "); Serial.println(y); }
#define LOGWARN(x) if(_ESPLOGLEVEL_>1) { Serial.print("[WiFiEsp] "); Serial.println(x); }
#define LOGWARN1(x,y) if(_ESPLOGLEVEL_>2) { Serial.print("[WiFiEsp] "); Serial.print(x); Serial.print(" "); Serial.println(y); }
#define LOGINFO(x) if(_ESPLOGLEVEL_>2) { Serial.print("[WiFiEsp] "); Serial.println(x); }
#define LOGINFO1(x,y) if(_ESPLOGLEVEL_>2) { Serial.print("[WiFiEsp] "); Serial.print(x); Serial.print(" "); Serial.println(y); }
#define LOGDEBUG(x) if(_ESPLOGLEVEL_>3) { Serial.println(x); }
#define LOGDEBUG0(x) if(_ESPLOGLEVEL_>3) { Serial.print(x); }
#define LOGDEBUG1(x,y) if(_ESPLOGLEVEL_>3) { Serial.print(x); Serial.print(" "); Serial.println(y); }
#define LOGDEBUG2(x,y,z) if(_ESPLOGLEVEL_>3) { Serial.print(x); Serial.print(" "); Serial.print(y); Serial.print(" "); Serial.println(z); }
#endif

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lib/WiFiEsp/test/BasicTest/BasicTest.ino Normal file
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/*
WiFiEsp test: BasicTest
Performs basic connectivity test and checks.
*/
#include "WiFiEsp.h"
// Emulate Serial1 on pins 7/6 if not present
#ifndef HAVE_HWSERIAL1
#include "SoftwareSerial.h"
SoftwareSerial Serial1(6, 7); // RX, TX
#endif
char ssid[] = "Twim"; // your network SSID (name)
char pwd[] = "12345678"; // your network password
char pwdErr[] = "xxxx"; // wrong password
void setup()
{
Serial.begin(115200);
Serial1.begin(9600);
WiFi.init(&Serial1);
}
void loop()
{
assertEquals("Firmware version", WiFi.firmwareVersion(), "1.5.2");
assertEquals("Status is (WL_DISCONNECTED)", WiFi.status(), WL_DISCONNECTED);
assertEquals("Connect", WiFi.begin(ssid, pwd), WL_CONNECTED);
assertEquals("Check status (WL_CONNECTED)", WiFi.status(), WL_CONNECTED);
assertEquals("Check SSID", WiFi.SSID(), ssid);
IPAddress ip = WiFi.localIP();
assertNotEquals("Check IP Address", ip[0], 0);
Serial.print("IP Address: ");
Serial.println(ip);
byte mac[6]={0,0,0,0,0,0};
WiFi.macAddress(mac);
Serial.print("MAC: ");
Serial.print(mac[5], HEX);
Serial.print(":");
Serial.print(mac[4], HEX);
Serial.print(":");
Serial.print(mac[3], HEX);
Serial.print(":");
Serial.print(mac[2], HEX);
Serial.print(":");
Serial.print(mac[1], HEX);
Serial.print(":");
Serial.println(mac[0], HEX);
Serial.println();
assertEquals("Disconnect", WiFi.disconnect(), WL_DISCONNECTED);
assertEquals("Check status (WL_DISCONNECTED)", WiFi.status(), WL_DISCONNECTED);
assertEquals("IP Address", WiFi.localIP(), 0);
assertEquals("Check SSID", WiFi.SSID(), "");
assertEquals("Wrong pwd", WiFi.begin(ssid, pwdErr), WL_CONNECT_FAILED);
IPAddress localIp(192, 168, 168, 111);
WiFi.config(localIp);
assertEquals("Connect", WiFi.begin(ssid, pwd), WL_CONNECTED);
assertEquals("Check status (WL_CONNECTED)", WiFi.status(), WL_CONNECTED);
ip = WiFi.localIP();
assertNotEquals("Check IP Address", ip[0], 0);
Serial.println("END OF TESTS");
delay(60000);
}
////////////////////////////////////////////////////////////////////////////////////
void assertNotEquals(const char* test, int actual, int expected)
{
if(actual!=expected)
pass(test);
else
fail(test, actual, expected);
}
void assertEquals(const char* test, int actual, int expected)
{
if(actual==expected)
pass(test);
else
fail(test, actual, expected);
}
void assertEquals(const char* test, char* actual, char* expected)
{
if(strcmp(actual, expected) == 0)
pass(test);
else
fail(test, actual, expected);
}
void pass(const char* test)
{
Serial.print(F("********************************************** "));
Serial.print(test);
Serial.println(" > PASSED");
Serial.println();
}
void fail(const char* test, char* actual, char* expected)
{
Serial.print(F("********************************************** "));
Serial.print(test);
Serial.print(" > FAILED");
Serial.print(" (actual=\"");
Serial.print(actual);
Serial.print("\", expected=\"");
Serial.print(expected);
Serial.println("\")");
Serial.println();
delay(10000);
}
void fail(const char* test, int actual, int expected)
{
Serial.print(F("********************************************** "));
Serial.print(test);
Serial.print(" > FAILED");
Serial.print(" (actual=");
Serial.print(actual);
Serial.print(", expected=");
Serial.print(expected);
Serial.println(")");
Serial.println();
delay(10000);
}

184
lib/WiFiEsp/test/ClientTest/ClientTest.ino Normal file
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/*
WiFiEsp test: ClientTest
Test client functions.
*/
#include "WiFiEsp.h"
// Emulate Serial1 on pins 7/6 if not present
#ifndef HAVE_HWSERIAL1
#include "SoftwareSerial.h"
SoftwareSerial Serial1(6, 7); // RX, TX
#endif
char ssid[] = "Twim"; // your network SSID (name)
char pwd[] = "12345678"; // your network password
// Initialize the Wifi client library
WiFiEspClient client;
void setup()
{
Serial.begin(115200);
Serial1.begin(9600);
WiFi.init(&Serial1);
}
void loop()
{
bool f;
int c;
assertEquals("Check status WL_DISCONNECTED", WiFi.status(), WL_DISCONNECTED);
assertEquals("Connect", WiFi.begin(ssid, pwd), WL_CONNECTED);
assertEquals("Check status WL_CONNECTED", WiFi.status(), WL_CONNECTED);
IPAddress ip = WiFi.localIP();
Serial.print("IP Address: ");
Serial.println(ip);
assertEquals("Ping", WiFi.ping("www.google.com"), true);
assertEquals("Not connected", client.connected(), false);
assertEquals("Connect to server", client.connect("www.brainjar.com", 80), 1);
assertEquals("Connected", client.connected(), true);
//--------------------------------------------------------------
// HTTP request without 'Connection: close' command
client.println("GET /java/host/test.html HTTP/1.1");
client.println("Host: www.brainjar.com");
client.println();
// wait for the response
long _startMillis = millis();
while (!client.available() and (millis()-_startMillis < 2000))
{
}
assertEquals("Response received", (millis()-_startMillis < 2000), true);
f = client.find("<html>");
assertEquals("Response check", f, true);
if (f)
{
while( (c = client.read()) > 0)
Serial.print((char)c);
}
assertEquals("Connected", client.connected(), true);
//--------------------------------------------------------------
delay(5000);
assertEquals("Check status WL_CONNECTED", WiFi.status(), WL_CONNECTED);
assertEquals("Connected", client.connected(), true);
//--------------------------------------------------------------
// HTTP request without 'Connection: close' command
client.println("GET /java/host/test.html HTTP/1.1");
client.println("Host: www.brainjar.com");
client.println("Connection: close");
client.println();
// wait for the response
_startMillis = millis();
while (!client.available() and (millis()-_startMillis < 2000))
{
}
assertEquals("Response received", (millis()-_startMillis < 2000), true);
f = client.find("<html>");
assertEquals("Response check", f, true);
if (f)
{
while( (c = client.read()) > 0)
Serial.print((char)c);
}
//--------------------------------------------------------------
assertEquals("Check status WL_CONNECTED", WiFi.status(), WL_CONNECTED);
assertEquals("Not connected", client.connected(), false);
assertEquals("Ping", WiFi.ping("www.google.com"), true);
assertEquals("Connect", WiFi.disconnect(), WL_DISCONNECTED);
assertEquals("Check status WL_DISCONNECTED", WiFi.status(), WL_DISCONNECTED);
Serial.println("END OF TESTS");
delay(30000);
}
////////////////////////////////////////////////////////////////////////////////////
void assertEquals(const char* test, int actual, int expected)
{
if(actual==expected)
pass(test);
else
fail(test, actual, expected);
}
void assertEquals(const char* test, char* actual, char* expected)
{
if(strcmp(actual, expected) == 0)
pass(test);
else
fail(test, actual, expected);
}
void pass(const char* test)
{
Serial.print(F("********************************************** "));
Serial.print(test);
Serial.println(" > PASSED");
Serial.println();
}
void fail(const char* test, char* actual, char* expected)
{
Serial.print(F("********************************************** "));
Serial.print(test);
Serial.print(" > FAILED");
Serial.print(" (actual=\"");
Serial.print(actual);
Serial.print("\", expected=\"");
Serial.print(expected);
Serial.println("\")");
Serial.println();
delay(10000);
}
void fail(const char* test, int actual, int expected)
{
Serial.print(F("********************************************** "));
Serial.print(test);
Serial.print(" > FAILED");
Serial.print(" (actual=");
Serial.print(actual);
Serial.print(", expected=");
Serial.print(expected);
Serial.println(")");
Serial.println();
delay(10000);
}

48
lib/WiFiEsp/test/EspDebug/EspDebug.ino Normal file
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// EspDebug - Test sketch for ESP8266 module
#include "Arduino.h"
// Emulate Serial1 on pins 7/6 if not present
#ifndef HAVE_HWSERIAL1
#include "SoftwareSerial.h"
SoftwareSerial Serial1(6, 7); // RX, TX
#endif
void setup()
{
Serial.begin(115200); // serial port used for debugging
Serial1.begin(9600); // your ESP's baud rate might be different
}
void loop()
{
if(Serial1.available()) // check if the ESP is sending a message
{
while(Serial1.available())
{
int c = Serial1.read(); // read the next character
Serial.write((char)c); // writes data to the serial monitor
}
}
if(Serial.available())
{
// wait to let all the input command in the serial buffer
delay(10);
// read the input command in a string
String cmd = "";
while(Serial.available())
{
cmd += (char)Serial.read();
}
// print the command and send it to the ESP
Serial.println();
Serial.print(">>>> ");
Serial.println(cmd);
// send the read character to the ESP
Serial1.print(cmd);
}
}

58
lib/WiFiEsp/test/RingBufferTest/RingBufferTest.ino Normal file
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/*
WiFiEsp test: RingBufferTest
Test of the RingBuffer class.
*/
#include "WiFiEsp.h"
RingBuffer buf(5);
void setup()
{
Serial.begin(115200);
Serial.println("Starting tests");
buf.init();
buf.push('a');
assert(10, buf.endsWith("a"), true);
assert(11, buf.endsWith("A"), false);
assert(12, buf.endsWith("ab"), false);
buf.push('b');
assert(21, buf.endsWith("a"), false);
assert(22, buf.endsWith("A"), false);
assert(23, buf.endsWith("ab"), true);
buf.push('c');
buf.push('d');
buf.push('e');
assert(31, buf.endsWith("abcde"), true);
assert(32, buf.endsWith("de"), true);
buf.push('f');
assert(43, buf.endsWith("bcdef"), true);
assert(44, buf.endsWith("ef"), true);
Serial.println("Done");
}
void loop()
{
// nothing to do
}
void assert(int i, bool x, bool y)
{
if (x!=y)
{
Serial.print ("FAIL ");
Serial.println(i);
}
}