/*
* Rui Santos
* Complete Project Details http://randomnerdtutorials.com
*/
#include <WiFi.h>
// Replace with your network credentials
const char* ssid = "YOUR_SSID";
const char* password = "YOUR_PASSWORD";
WiFiServer server(80);
const int led1 = 16; // the number of the LED pin
const int led2 = 17; // the number of the LED pin
// Client variables
char linebuf[80];
int charcount=0;
void setup() {
// initialize the LEDs pins as an output:
pinMode(led1, OUTPUT);
pinMode(led2, OUTPUT);
//Initialize serial and wait for port to open:
Serial.begin(115200);
while(!Serial) {
; // wait for serial port to connect. Needed for native USB port only
}
// We start by connecting to a WiFi network
Serial.println();
Serial.println();
Serial.print("Connecting to ");
Serial.println(ssid);
WiFi.begin(ssid, password);
// attempt to connect to Wifi network:
while(WiFi.status() != WL_CONNECTED) {
// Connect to WPA/WPA2 network. Change this line if using open or WEP network:
delay(500);
Serial.print(".");
}
Serial.println("");
Serial.println("WiFi connected");
Serial.println("IP address: ");
Serial.println(WiFi.localIP());
server.begin();
}
void loop() {
// listen for incoming clients
WiFiClient client = server.available();
if (client) {
Serial.println("New client");
memset(linebuf,0,sizeof(linebuf));
charcount=0;
// an http request ends with a blank line
boolean currentLineIsBlank = true;
while (client.connected()) {
if (client.available()) {
char c = client.read();
Serial.write(c);
//read char by char HTTP request
linebuf[charcount]=c;
if (charcount<sizeof(linebuf)-1) charcount++;
// 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) {
// send a standard http response header
client.println("HTTP/1.1 200 OK");
client.println("Content-Type: text/html");
client.println("Connection: close"); // the connection will be closed after completion of the response
client.println();
client.println("<!DOCTYPE HTML><html><head>");
client.println("<meta name=\"viewport\" content=\"width=device-width, initial-scale=1\"></head>");
client.println("<h1>ESP32 - Web Server</h1>");
client.println("<p>LED #1 <a href=\"on1\"><button>ON</button></a> <a href=\"off1\"><button>OFF</button></a></p>");
client.println("<p>LED #2 <a href=\"on2\"><button>ON</button></a> <a href=\"off2\"><button>OFF</button></a></p>");
client.println("</html>");
break;
}
if (c == '\n') {
// you're starting a new line
currentLineIsBlank = true;
if (strstr(linebuf,"GET /on1") > 0){
Serial.println("LED 1 ON");
digitalWrite(led1, HIGH);
}
else if (strstr(linebuf,"GET /off1") > 0){
Serial.println("LED 1 OFF");
digitalWrite(led1, LOW);
}
else if (strstr(linebuf,"GET /on2") > 0){
Serial.println("LED 2 ON");
digitalWrite(led2, HIGH);
}
else if (strstr(linebuf,"GET /off2") > 0){
Serial.println("LED 2 OFF");
digitalWrite(led2, LOW);
}
// you're starting a new line
currentLineIsBlank = true;
memset(linebuf,0,sizeof(linebuf));
charcount=0;
} 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(1);
// close the connection:
client.stop();
Serial.println("client disconnected");
}
}