ESP8266_Test.ino

#include <ESP8266WiFi.h> 
#include <WiFiClient.h> 
#include <ESP8266WebServer.h> 
 
/* Set these to your desired credentials. */ 
const char *ssid = "****"; //Enter your WIFI ssid 
const char *password = "******"; //Enter your WIFI password 
 
ESP8266WebServer server(80);  // Web server port for incoming requests
 
/* Root HTML */ 
void handleRoot()
{ 
  server.send(200, "text/html", "<form action=\"/LED_BUILTIN_on\" method=\"get\" id=\"form1\"></form><button type=\"submit\" form=\"form1\" value=\"On\">On</button><form action=\"/LED_BUILTIN_off\" method=\"get\" id=\"form2\"></form><button type=\"submit\" form=\"form2\" value=\"Off\">Off</button>"); 
} 

void handleSave()
{ 
  if (server.arg("pass") != "") { 
    Serial.println(server.arg("pass")); 
  } 
} 
 
void setup() { 
  pinMode(LED_BUILTIN, OUTPUT); 
  delay(3000); 
  Serial.begin(115200); 
  Serial.println(); 
  Serial.print("Configuring access point..."); 
  WiFi.begin(ssid, password); 
  while (WiFi.status() != WL_CONNECTED) { 
    delay(500); 
    Serial.print("."); 
  } 
  Serial.println(""); 
  Serial.println("WiFi connected"); 
  Serial.println("IP address: "); 
  Serial.println(WiFi.localIP()); 
  server.on ( "/", handleRoot ); 
  server.on ("/save", handleSave); 
  server.begin(); 
  Serial.println ( "HTTP server started" ); 
  server.on("/LED_BUILTIN_on", []() { 
    digitalWrite(LED_BUILTIN, 1); 
    Serial.println("on"); 
    handleRoot(); 
  }); 
  server.on("/LED_BUILTIN_off", []() { 
    digitalWrite(LED_BUILTIN, 0); 
    Serial.println("off"); 
    handleRoot(); 
  }); 
} 
 
void loop() { 
  server.handleClient(); 
}