118 lines
3.0 KiB
C++
118 lines
3.0 KiB
C++
/*
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Chat Server
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A simple server that distributes any incoming messages to all
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connected clients. To use, telnet to your device's IP address and type.
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You can see the client's input in the serial monitor as well.
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This example is written for a network using WPA encryption. For
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WEP or WPA, change the WiFi.begin() call accordingly.
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Circuit:
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* Board with NINA module (Arduino MKR WiFi 1010, MKR VIDOR 4000 and UNO WiFi Rev.2)
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created 18 Dec 2009
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by David A. Mellis
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modified 31 May 2012
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by Tom Igoe
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*/
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#include <SPI.h>
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#include <WiFiNINA.h>
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#include "arduino_secrets.h"
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///////please enter your sensitive data in the Secret tab/arduino_secrets.h
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char ssid[] = SECRET_SSID; // your network SSID (name)
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char pass[] = SECRET_PASS; // your network password (use for WPA, or use as key for WEP)
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int keyIndex = 0; // your network key index number (needed only for WEP)
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int status = WL_IDLE_STATUS;
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WiFiServer server(23);
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boolean alreadyConnected = false; // whether or not the client was connected previously
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void setup() {
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//Initialize serial and wait for port to open:
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Serial.begin(9600);
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while (!Serial) {
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; // wait for serial port to connect. Needed for native USB port only
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}
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// check for the WiFi module:
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if (WiFi.status() == WL_NO_MODULE) {
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Serial.println("Communication with WiFi module failed!");
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// don't continue
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while (true);
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}
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String fv = WiFi.firmwareVersion();
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if (fv < WIFI_FIRMWARE_LATEST_VERSION) {
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Serial.println("Please upgrade the firmware");
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}
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// attempt to connect to WiFi network:
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while (status != WL_CONNECTED) {
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Serial.print("Attempting to connect to SSID: ");
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Serial.println(ssid);
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// Connect to WPA/WPA2 network. Change this line if using open or WEP network:
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status = WiFi.begin(ssid, pass);
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// wait 10 seconds for connection:
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delay(10000);
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}
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// start the server:
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server.begin();
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// you're connected now, so print out the status:
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printWifiStatus();
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}
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void loop() {
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// wait for a new client:
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WiFiClient client = server.available();
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// when the client sends the first byte, say hello:
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if (client) {
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if (!alreadyConnected) {
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// clear out the input buffer:
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client.flush();
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Serial.println("We have a new client");
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client.println("Hello, client!");
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alreadyConnected = true;
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}
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if (client.available() > 0) {
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// read the bytes incoming from the client:
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char thisChar = client.read();
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// echo the bytes back to the client:
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server.write(thisChar);
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// echo the bytes to the server as well:
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Serial.write(thisChar);
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}
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}
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}
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void printWifiStatus() {
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// print the SSID of the network you're attached to:
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Serial.print("SSID: ");
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Serial.println(WiFi.SSID());
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// print your board's IP address:
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IPAddress ip = WiFi.localIP();
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Serial.print("IP Address: ");
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Serial.println(ip);
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// print the received signal strength:
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long rssi = WiFi.RSSI();
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Serial.print("signal strength (RSSI):");
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Serial.print(rssi);
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Serial.println(" dBm");
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}
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