const int buttonpin = 2;
const int ledpin = 7;
void setup() {
  // put your setup code here, to run once:
  pinMode(buttonpin, INPUT);
  pinMode(ledpin, OUTPUT);

}

void loop() {
  // put your main code here, to run repeatedly:
  int buttonstate=digitalRead(buttonpin);
  if(buttonstate==HIGH){
    digitalWrite(ledpin, HIGH);
    delay(1000);
    digitalWrite(ledpin, LOW);
    delay(1000);
  }
  else{
    digitalWrite(ledpin, LOW);
  }

}
/* any vcc pin (5V) out of 4 pins and then choose diagonal pin is to be data
   pin and below pin of vcc must be ground pin */
// btn1.1.l - 5V VCC
// btn1.2.l - ground pin through a 10K-OHM resistor
// btn1.2.r - digital pin (any)
// HOLD THE PUSHBUTTON TO MAKE THE BUTTON ON