jual esp8266 programmer di Malang

Jual esp8266 iot programmer include relay - usb to ttl - kabel jumper hanya 230000.0, lihat gambar klik https://www.tokopedia.com/sarpinto/esp8266-iot-programmer-include-relay-usb-to-ttl-kabel-jumper

video tutorial  control relay via wifi web server

berikut program / sourcode / script / coding untuk control relay via wifi web server yang kami ambil dari sumbernya yaitu http://randomnerdtutorials.com  

/*********

  Rui Santos

  Complete project details at http://randomnerdtutorials.com  

*********/

#include <ESP8266WiFi.h>

#include <WiFiClient.h>

#include <ESP8266WebServer.h>

#include <ESP8266mDNS.h>

MDNSResponder mdns;

// Replace with your network credentials

const char* ssid = "freewifi";

const char* password = "12341111";

ESP8266WebServer server(80);

String webPage = "";

int gpio0_pin = 0;

int gpio2_pin = 2;

void setup(void){

  webPage += "<h1>ESP8266 Web Server</h1><p>Socket #1 <a href=\"socket1On\"><button>ON</button></a>&nbsp;<a href=\"socket1Off\"><button>OFF</button></a></p>";

  webPage += "<p>Socket #2 <a href=\"socket2On\"><button>ON</button></a>&nbsp;<a href=\"socket2Off\"><button>OFF</button></a></p>";

  

  // preparing GPIOs

  pinMode(gpio0_pin, OUTPUT);

  digitalWrite(gpio0_pin, LOW);

  pinMode(gpio2_pin, OUTPUT);

  digitalWrite(gpio2_pin, LOW);

  

  delay(1000);

  Serial.begin(115200);

  WiFi.begin(ssid, password);

  Serial.println("");

  // Wait for connection

  while (WiFi.status() != WL_CONNECTED) {

    delay(500);

    Serial.print(".");

  }

  Serial.println("");

  Serial.print("Connected to ");

  Serial.println(ssid);

  Serial.print("IP address: ");

  Serial.println(WiFi.localIP());

  

  if (mdns.begin("esp8266", WiFi.localIP())) {

    Serial.println("MDNS responder started");

  }

  

  server.on("/", [](){

    server.send(200, "text/html", webPage);

  });

  server.on("/socket1On", [](){

    server.send(200, "text/html", webPage);

    Serial.println("1 on");

    digitalWrite(gpio0_pin, HIGH);

    delay(1000);

  });

  server.on("/socket1Off", [](){

    server.send(200, "text/html", webPage);

    Serial.println("1 off");

    digitalWrite(gpio0_pin, LOW);

    delay(1000); 

  });

  server.on("/socket2On", [](){

    server.send(200, "text/html", webPage);

    Serial.println("2 on");

    digitalWrite(gpio2_pin, HIGH);

    delay(1000);

  });

  server.on("/socket2Off", [](){

    server.send(200, "text/html", webPage);

    Serial.println("2 off");

    digitalWrite(gpio2_pin, LOW);

    delay(1000); 

  });

  server.begin();

  Serial.println("HTTP server started");

}

void loop(void){

  server.handleClient();

}