const int button = 5 ;
const int LED = 6;
int button_test = 0;
void setup() {
pinMode(button , INPUT_PULLUP);
pinMode(LED , OUTPUT);
}
void loop() {
button_test=digitalRead(button);
if (button_test == LOW)
{
digitalWrite(LED,HIGH);
delay(500);
digitalWrite(LED,LOW);
delay(500);
} else {
digitalWrite(LED,LOW);
}
}