/*
Hightechrobo learn
by Arian
*/
#define button 4
#define led 3
void setup() {
  // put your setup code here, to run once:
pinMode(led,OUTPUT);
pinMode(button,INPUT_PULLUP);
}
void loop() {
  // put your main code here, to run repeatedly:
  
  if(digitalRead(button) == 0 and a == 0){
  a = 1;
  
    while( digitalRead(button) == 0){
          analogWrite(led,255);
    }
    }

else if(digitalRead(button) == 0 and a == 1){
  a = 0;
  
    while(digitalRead(button) == 0){
          analogWrite(led,0);
    }
    
    }
    
}