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Commit3295246

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WiFi examples
1 parent103d4ab commit3295246

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/*
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WiFi Web Server LED Blink
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A simple web server that lets you blink an LED via the web.
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This sketch will create a new access point (with no password).
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It will then launch a new server and print out the IP address
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to the Serial Monitor. From there, you can open that address in a web browser
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to turn on and off the LED on pin 13.
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If the IP address of your board is yourAddress:
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http://yourAddress/H turns the LED on
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http://yourAddress/L turns it off
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created 25 Nov 2012
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by Tom Igoe
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adapted to WiFi AP by Adafruit
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*/
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#include<WiFi.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 led = LED_BUILTIN;
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int status = WL_IDLE_STATUS;
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WiFiServerserver(80);
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voidsetup() {
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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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Serial.println("Access Point Web Server");
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pinMode(led, OUTPUT);// set the LED pin mode
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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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WiFi.config(IPAddress(10,0,0,1));
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// print the network name (SSID);
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Serial.print("Creating access point named:");
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Serial.println(ssid);
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// Create open network. Change this line if you want to create an open network:
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status = WiFi.beginAP(ssid, pass);
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if (status != WL_AP_LISTENING) {
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Serial.println("Creating access point failed");
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// don't continue
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while (true);
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}
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// start the web server on port 80
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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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voidloop() {
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// compare the previous status to the current status
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if (status != WiFi.status()) {
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// it has changed update the variable
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status = WiFi.status();
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if (status == WL_AP_CONNECTED) {
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// a device has connected to the AP
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Serial.println("Device connected to AP");
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}else {
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// a device has disconnected from the AP, and we are back in listening mode
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Serial.println("Device disconnected from AP");
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}
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}
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WiFiClient client = server.available();// listen for incoming clients
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if (client) {// if you get a client,
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Serial.println("new client");// print a message out the serial port
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String currentLine ="";// make a String to hold incoming data from the client
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while (client.connected()) {// loop while the client's connected
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delayMicroseconds(10);// This is required for the Arduino Nano RP2040 Connect - otherwise it will loop so fast that SPI will never be served.
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if (client.available()) {// if there's bytes to read from the client,
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char c = client.read();// read a byte, then
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Serial.write(c);// print it out to the serial monitor
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if (c =='\n') {// if the byte is a newline character
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// if the current line is blank, you got two newline characters in a row.
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// that's the end of the client HTTP request, so send a response:
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if (currentLine.length() ==0) {
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// HTTP headers always start with a response code (e.g. HTTP/1.1 200 OK)
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// and a content-type so the client knows what's coming, then a blank line:
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client.println("HTTP/1.1 200 OK");
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client.println("Content-type:text/html");
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client.println();
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// the content of the HTTP response follows the header:
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client.print("Click <a href=\"/H\">here</a> turn the LED on<br>");
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client.print("Click <a href=\"/L\">here</a> turn the LED off<br>");
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// The HTTP response ends with another blank line:
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client.println();
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// break out of the while loop:
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break;
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}
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else {// if you got a newline, then clear currentLine:
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currentLine ="";
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}
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}
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elseif (c !='\r') {// if you got anything else but a carriage return character,
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currentLine += c;// add it to the end of the currentLine
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}
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// Check to see if the client request was "GET /H" or "GET /L":
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if (currentLine.endsWith("GET /H")) {
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digitalWrite(led, HIGH);// GET /H turns the LED on
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}
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if (currentLine.endsWith("GET /L")) {
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digitalWrite(led, LOW);// GET /L turns the LED off
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}
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}
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}
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// close the connection:
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client.stop();
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Serial.println("client disconnected");
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}
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}
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voidprintWiFiStatus() {
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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 WiFi shield'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 where to go in a browser:
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Serial.print("To see this page in action, open a browser to http://");
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Serial.println(ip);
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}
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// Both SSID and password must be 8 characters or longer
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#defineSECRET_SSID ""
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#defineSECRET_PASS ""
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/*
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WiFi Web Server LED Blink
3+
4+
A simple web server that lets you blink an LED via the web.
5+
This sketch will print the IP address of your WiFi module (once connected)
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to the Serial Monitor. From there, you can open that address in a web browser
7+
to turn on and off the LED on pin 9.
8+
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If the IP address of your board is yourAddress:
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http://yourAddress/H turns the LED on
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http://yourAddress/L turns it off
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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 WiFi
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* LED attached to pin 9
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created 25 Nov 2012
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by Tom Igoe
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*/
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#include<WiFi.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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WiFiServerserver(80);
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voidsetup() {
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Serial.begin(9600);// initialize serial communication
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pinMode(LED_BUILTIN, OUTPUT);// set the LED pin mode
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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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// attempt to connect to WiFi network:
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while (status != WL_CONNECTED) {
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Serial.print("Attempting to connect to Network named:");
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Serial.println(ssid);// print the network name (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 3 seconds for connection:
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delay(3000);
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}
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server.begin();// start the web server on port 80
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printWifiStatus();// you're connected now, so print out the status
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}
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voidloop() {
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WiFiClient client = server.available();// listen for incoming clients
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if (client) {// if you get a client,
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Serial.println("new client");// print a message out the serial port
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String currentLine ="";// make a String to hold incoming data from the client
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while (client.connected()) {// loop while the client's connected
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if (client.available()) {// if there's bytes to read from the client,
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char c = client.read();// read a byte, then
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Serial.write(c);// print it out to the serial monitor
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if (c =='\n') {// if the byte is a newline character
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// if the current line is blank, you got two newline characters in a row.
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// that's the end of the client HTTP request, so send a response:
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if (currentLine.length() ==0) {
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// HTTP headers always start with a response code (e.g. HTTP/1.1 200 OK)
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// and a content-type so the client knows what's coming, then a blank line:
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client.println("HTTP/1.1 200 OK");
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client.println("Content-type:text/html");
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client.println();
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// the content of the HTTP response follows the header:
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client.print("Click <a href=\"/H\">here</a> turn the LED on<br>");
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client.print("Click <a href=\"/L\">here</a> turn the LED off<br>");
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// The HTTP response ends with another blank line:
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client.println();
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// break out of the while loop:
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break;
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}else {// if you got a newline, then clear currentLine:
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currentLine ="";
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}
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}elseif (c !='\r') {// if you got anything else but a carriage return character,
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currentLine += c;// add it to the end of the currentLine
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}
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// Check to see if the client request was "GET /H" or "GET /L":
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if (currentLine.endsWith("GET /H")) {
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digitalWrite(LED_BUILTIN, HIGH);// GET /H turns the LED on
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}
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if (currentLine.endsWith("GET /L")) {
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digitalWrite(LED_BUILTIN, LOW);// GET /L turns the LED off
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}
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}
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}
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// close the connection:
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client.stop();
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Serial.println("client disconnected");
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}
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}
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voidprintWifiStatus() {
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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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// print where to go in a browser:
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Serial.print("To see this page in action, open a browser to http://");
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Serial.println(ip);
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}
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#defineSECRET_SSID ""
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#defineSECRET_PASS ""
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/*
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Advanced WiFi Chat Server
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A more advanced server that distributes any incoming messages
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to all connected clients but the client the message comes from.
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To use, telnet to your device's IP address and type.
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Circuit:
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* Board with WiFi
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*/
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#include<WiFi.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 status = WL_IDLE_STATUS;
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// telnet defaults to port 23
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WiFiServerserver(23);
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WiFiClient clients[8];
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voidsetup() {
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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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// 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 network:
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status = WiFi.begin(ssid, pass);
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// wait 3 seconds for connection:
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delay(3000);
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}
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// start the server:
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server.begin();
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Serial.print("Chat server address:");
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Serial.println(WiFi.localIP());
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}
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voidloop() {
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// check for any new client connecting, and say hello (before any incoming data)
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WiFiClient newClient = server.accept();
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if (newClient) {
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for (byte i=0; i <8; i++) {
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if (!clients[i]) {
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Serial.print("We have a new client #");
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Serial.println(i);
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newClient.print("Hello, client number:");
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newClient.println(i);
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// Once we "accept", the client is no longer tracked by WiFiServer
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// so we must store it into our list of clients
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clients[i] = newClient;
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break;
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}
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}
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}
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// check for incoming data from all clients
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for (byte i=0; i <8; i++) {
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if (clients[i] && clients[i].available() >0) {
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// read bytes from a client
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byte buffer[80];
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int count = clients[i].read(buffer,80);
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// write the bytes to all other connected clients
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for (byte j=0; j <8; j++) {
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if (j != i && clients[j].connected()) {
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clients[j].write(buffer, count);
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}
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}
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}
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}
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// stop any clients which disconnect
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for (byte i=0; i <8; i++) {
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if (clients[i] && !clients[i].connected()) {
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Serial.print("disconnect client #");
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Serial.println(i);
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clients[i].stop();
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}
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}
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}
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#defineSECRET_SSID ""
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#defineSECRET_PASS ""

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