int LED = 2; // Assign LED to pin GPIO2
void setup() {
// initialize GPIO2 as an output
pinMode(LED, OUTPUT);
}
// the loop function runs forever
void loop() {
digitalWrite(LED, LOW); // turn the LED off
delay(1000); // wait for a second
digitalWrite(LED, HIGH); // turn the LED on
delay(1000);
}
int LED = 5; // Assign LED pin (D1 on NodeMCU)
void setup() {
// initialize GPIO 5 as an output
pinMode(LED, OUTPUT);
}
// the loop function runs over and over again forever
void loop() {
digitalWrite(LED, HIGH); // turn the LED on
delay(1000); // wait for a second
digitalWrite(LED, LOW); // turn the LED off
delay(1000); // wait for a second
}
#include <ESP8266WiFi.h>
#include <ESP8266WebServer.h>
/* Put your SSID & Password */
const char* ssid = "SSID_NAME"; // Enter SSID here
const char* password = "WIFI_PASSWORD"; //Enter Password here
ESP8266WebServer server(80);
uint8_t LED1pin = 4;
bool LED1status = LOW;
uint8_t LED2pin = 5;
bool LED2status = LOW;
void setup() {
WiFi.mode(WIFI_STA);
WiFi.begin(ssid, password);
Serial.begin(115200);
pinMode(LED1pin, OUTPUT);
pinMode(LED2pin, OUTPUT);
delay(100);
while (WiFi.status() != WL_CONNECTED) {
delay(200);
Serial.print(".");
}
Serial.println("");
Serial.print("Connected to ");
Serial.println(ssid);
Serial.print("IP address: ");
Serial.println(WiFi.localIP());
server.on("/", handle_OnConnect);
server.on("/led1on", handle_led1on);
server.on("/led1off", handle_led1off);
server.on("/led2on", handle_led2on);
server.on("/led2off", handle_led2off);
server.onNotFound(handle_NotFound);
server.begin();
Serial.println("HTTP server started");
}
void loop() {
server.handleClient();
if(LED1status)
digitalWrite(LED1pin, HIGH);
else
digitalWrite(LED1pin, LOW);
if(LED2status)
digitalWrite(LED2pin, HIGH);
else
digitalWrite(LED2pin, LOW);
}
void handle_OnConnect() {
LED1status = LOW;
LED2status = LOW;
Serial.println("GPIO2 Status: OFF | GPIO4 Status: OFF");
server.send(200, "text/html", SendHTML(LED1status,LED2status));
}
void handle_led1on() {
LED1status = HIGH;
Serial.println("GPIO4 Status: ON");
server.send(200, "text/html", SendHTML(true,LED2status));
}
void handle_led1off() {
LED1status = LOW;
Serial.println("GPIO4 Status: OFF");
server.send(200, "text/html", SendHTML(false,LED2status));
}
void handle_led2on() {
LED2status = HIGH;
Serial.println("GPIO2 Status: ON");
server.send(200, "text/html", SendHTML(LED1status,true));
}
void handle_led2off() {
LED2status = LOW;
Serial.println("GPIO2 Status: OFF");
server.send(200, "text/html", SendHTML(LED1status,false));
}
void handle_NotFound(){
server.send(404, "text/plain", "Not found");
}
String SendHTML(uint8_t led1stat,uint8_t led2stat){
String ptr = "<!DOCTYPE html> <html>\n";
ptr +="<head><meta name=\"viewport\" content=\"width=device-width, initial-scale=1.0, user-scalable=no\">\n";
ptr +="<title>LED Control</title>\n";
ptr +="<style>html { font-family: Roboto; display: inline-block; margin: 0px auto; text-align: center;}\n";
ptr +="body{margin-top: 50px;} h1 {color: #222222;margin: 50px auto 30px;} h3 {color: #444444;margin-bottom: 50px;}\n";
ptr +=".button {display: block;width: 80px;background-color: #1abc1a;border: none;color: white;padding: 13px 30px;text-decoration: none;font-size: 25px;margin: 0px auto 35px;cursor: pointer;border-radius: 4px;}\n";
ptr +=".button-on {background-color: #1abc9c;}\n";
ptr +=".button-on:active {background-color: #16a085;}\n";
ptr +=".button-off {background-color: #34495e;}\n";
ptr +=".button-off:active {background-color: #2c3e50;}\n";
ptr +="p {font-size: 14px;color: #888;margin-bottom: 10px;}\n";
ptr +="</style>\n";
ptr +="</head>\n";
ptr +="<body>\n";
ptr +="<h1>Smart Home Controller</h1>\n";
if(led1stat)
ptr +="<p>LED1 Status: ON</p><a class=\"button button-off\" href=\"/led1off\">OFF</a>\n";
else
ptr +="<p>LED1 Status: OFF</p><a class=\"button button-on\" href=\"/led1on\">ON</a>\n";
if(led2stat)
ptr +="<p>LED2 Status: ON</p><a class=\"button button-off\" href=\"/led2off\">OFF</a>\n";
else
ptr +="<p>LED2 Status: OFF</p><a class=\"button button-on\" href=\"/led2on\">ON</a>\n";
ptr +="</body>\n";
ptr +="</html>\n";
return ptr;
}
