week14 02160120

boolean button1=false;
int i;
void setup() {
  //start serial connection
  Serial.begin(9600);
  //configure pin2 as an input and enable the internal pull-up resistor
  pinMode(2, INPUT_PULLUP);
  pinMode(13, OUTPUT);

}
int down=0;
boolean light=false;
void loop() {
  if(digitalRead(2)==LOW){i=2;}
checkbutton();
}
void checkbutton(){
 
  if(digitalRead(i)==LOW && down==0){
    down=1;
    light = !light;
  }
  if(digitalRead(i)==HIGH && down==1){
    down=0;
  }
  digitalWrite(i+20, light);

}