/*
 * This is the Arduino code for a push button to turn ON and OFF a relay and AC bulb.
It toggles the bulb ON and OFF.
 * The output pin 10 is connected to the relay.
 * Watch video instructions on YouTube: https://youtu.be/7CCSRs5bvH0
 * Be careful working with AC; it is dangerous. Disconnect from AC power when working and wear protective gloves when touching AC components.
 
 * Full explanation of this code and wiring diagram is available in
 * my Arduino Course at Udemy.com here: http://robojax.com/L/?id=62

 * Written by Ahmad Shamshiri on December 14, 2017 in Ajax, Ontario, Canada
 * in Ajax, Ontario, Canada. www.robojax.com
 * 

 * Get this code and other Arduino codes from Robojax.com.
Learn Arduino step by step in a structured course with all materials, wiring diagrams, and libraries
all in one place. Purchase my course on Udemy.com: http://robojax.com/L/?id=62

If you found this tutorial helpful, please support me so I can continue creating 
content like this. You can support me on Patreon: http://robojax.com/L/?id=63

or make a donation using PayPal: http://robojax.com/L/?id=64

 *  * This code is "AS IS" without warranty or liability. Free to be used as long as you keep this note intact.* 
 * This code has been downloaded from Robojax.com
    This program is free software: you can redistribute it and/or modify
    it under the terms of the GNU General Public License as published by
    the Free Software Foundation, either version 3 of the License, or
    (at your option) any later version.

    This program is distributed in the hope that it will be useful,
    but WITHOUT ANY WARRANTY; without even the implied warranty of
    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
    GNU General Public License for more details.

    You should have received a copy of the GNU General Public License
    along with this program.  If not, see <https://www.gnu.org/licenses/>.


*/


int pbuttonPin = 2;// connect output to push button
int relayPin = 10;// Connected to relay (LED)

int val = 0; // push value from pin 2
int lightON = 0;//light status
int pushed = 0;//push status


void setup() {
	// Robojax.com code and video tutorial for push button ON and OFF
  Serial.begin(9600);
  pinMode(pbuttonPin, INPUT_PULLUP); 
  pinMode(relayPin, OUTPUT);
 digitalWrite(relayPin, HIGH);// keep the load OFF at the begining. If you wanted to be ON, change the HIGH to LOW
}

void loop() {
// Robojax.com code and video tutorial for push button ON and OFF
  val = digitalRead(pbuttonPin);// read the push button value

  if(val == HIGH && lightON == LOW){

    pushed = 1-pushed;
    delay(100);
  }    

  lightON = val;

      if(pushed == HIGH){
        Serial.println("Light ON");
        digitalWrite(relayPin, LOW); 
       
      }else{
        Serial.println("Light OFF");
        digitalWrite(relayPin, HIGH);
   
      }     

// Robojax.com code and video tutorial for push button ON and OFF

  delay(100);
}