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/*
 * Sketch: ESP8266_LED_Control_02
 * Control an LED from a web browser
 * Intended to be run on an ESP8266
 *
 * connect to the ESP8266 AP then
 * use web broswer to go to 192.168.4.1
 *
 */


#include <ESP8266WiFi.h>
#include <Arduino.h>

#define REDPIN D1
#define GREENPIN D2
#define BLUEPIN D3

#define FADESPEED 5     // make this higher to slow down

const char AP_NameChar[] = "RoboTeamLED" ;
const char WiFiPassword[] = "12345678";

WiFiServer server(80);

String header = "HTTP/1.1 200 OK\r\nContent-Type: text/html\r\n\r\n";
String html_1 = "<!DOCTYPE html><html><head><title>LED Control</title></head><body><div id='main'><h2>LED Control</h2>";
String html_2 = "<form id='F1' action='LEDON'><input class='button' type='submit' value='LED ON' ></form><br>";
String html_3 = "<form id='F2' action='LEDOFF'><input class='button' type='submit' value='LED OFF' ></form><br>";
String html_4 = "</div></body></html>";

String request = "";

void setup()
{


  pinMode(REDPIN, OUTPUT);
  pinMode(GREENPIN, OUTPUT);
  pinMode(BLUEPIN, OUTPUT);

    boolean conn = WiFi.softAP(AP_NameChar, WiFiPassword);
    server.begin();

} // void setup()

void loop()
{

    // Check if a client has connected
    WiFiClient client = server.available();
    if (!client)  {  return;  }

    // Read the first line of the request
    request = client.readStringUntil('\r');

    if       ( request.indexOf("LEDON") > 0 )  {
      // fade from blue to violet
        digitalWrite(REDPIN, 255);
       digitalWrite(GREENPIN, 255);
        digitalWrite(BLUEPIN, 255);
    }
    else if  ( request.indexOf("LEDOFF") > 0 ) {
            digitalWrite(REDPIN, 0);
       digitalWrite(GREENPIN, 0);
        digitalWrite(BLUEPIN, 0);
    } else if  ( request.indexOf("LEDRED") > 0 ) {
            digitalWrite(REDPIN, 255);
       digitalWrite(GREENPIN, 0);
        digitalWrite(BLUEPIN, 0);
    }     else if  ( request.indexOf("LEDBLUE") > 0 ) {
            digitalWrite(REDPIN, 0);
       digitalWrite(GREENPIN, 0);
        digitalWrite(BLUEPIN, 255);
    }     else if  ( request.indexOf("LEDGREEN") > 0 ) {
            digitalWrite(REDPIN, 0);
       digitalWrite(GREENPIN, 255);
        digitalWrite(BLUEPIN, 0);
    }

    client.flush();

    client.print( header );
    client.print( html_1 );
    client.print( html_2 );
    client.print( html_3 );
    client.print( html_4);

    delay(5);
  // The client will actually be disconnected when the function returns and 'client' object is detroyed

} // void loop()