107 lines
2.6 KiB
Arduino
107 lines
2.6 KiB
Arduino
|
/*
|
||
|
|
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");
|
||
|
|
}
|