CONTROLLING ESP12E NODEMCU WITH LED FROM WEBSITE (LOCAL NETWORK) – Part1
/*******************************************************************
This will turn on the LED connected to pin D1 of ESP12E NODEMCU.
You can replace the pin 'D1' to 'D2' and 'D3' respectively.
'1' represents 'on' and '0' represents off.
http://Your IP Address (xxx.xxx.x.x)/D1/1 - to turn on the led
http://Your IP Address (xxx.xxx.x.x)/D1/0 - to turn off the led.
*******************************************************************/
#include <ESP8266WiFi.h>
//const char* ssid = "your SSID or hotspot or wifi name";
//const char* password = "password of hotspot or wifi or ssid";
const char* ssid = "PTS-2F";
const char* password = "";
// Create an instance of the server
// specify the port to listen on as an argument
WiFiServer server(80);
void setup() {
Serial.begin(115200);
delay(10);
pinMode(D1, OUTPUT);
pinMode(D2, OUTPUT);
pinMode(D3, OUTPUT);
for (int i=0; i <= 10; i++){
digitalWrite(D1, 1);
digitalWrite(D2, 1);
digitalWrite(D3, 1);
delay (500);
digitalWrite(D1, 0);
digitalWrite(D2, 0);
digitalWrite(D3, 0);
delay (500);
}
// Connect to WiFi network
Serial.println();
Serial.println();
Serial.print("Connecting to ");
Serial.println(ssid);
WiFi.begin(ssid, password);
while (WiFi.status() != WL_CONNECTED) {
delay(500);
Serial.print(".");
}
Serial.println("");
Serial.println("WiFi connected");
// Start the server
server.begin();
Serial.println("Server started");
// Print the IP address
Serial.println(WiFi.localIP());
}
void loop() {
// Check if a client has connected
WiFiClient client = server.available();
if (!client) {
return;
}
// Wait until the client sends some data
Serial.println("new client");
while(!client.available()){
delay(1);
}
// Read the first line of the request
String req = client.readStringUntil('\r');
Serial.println(req);
client.flush();
// Match the request
int val;
String m;
if (req.indexOf("/D1/0") != -1){
m = "D1 is Low";
digitalWrite(D1, 0);
}
else if (req.indexOf("/D1/1") != -1){
m = "D1 is High";
digitalWrite(D1, 1);
}
else if (req.indexOf("/D2/0") != -1){
m = "D2 is Low";
digitalWrite(D2, 0);
}
else if (req.indexOf("/D2/1") != -1){
m = "D2 is High";
digitalWrite(D2, 1);
}
else if (req.indexOf("/D3/0") != -1){
m = "D3 is Low";
digitalWrite(D3, 0);
}
else if (req.indexOf("/D3/1") != -1){
m = "D3 is High";
digitalWrite(D3, 1);
}
else {
Serial.println("invalid request");
client.stop();
return;
}
client.flush();
// Prepare the response
String s = "HTTP/1.1 200 OK\r\nContent-Type: text/html\r\n\r\n<!DOCTYPE HTML>\r\n<head><meta http-equiv=\"Access-Control-Allow-Origin\" content=\"*\"></head>\n<html>\r\n" +m;
s += "</html>\n";
// Send the response to the client
client.print(s);
delay(1);
Serial.println("Client disonnected");
// The client will actually be disconnected
// when the function returns and 'client' object is detroyed
}
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