void setup() {
    pinMode(2,OUTPUT);
    digitalWrite(2,HIGH);
    pinMode(2,OUTPUT);
    digitalWrite(2,LOW);
 }
 void loop() {
    pinMode(2,OUTPUT);
    digitalWrite(2,HIGH);
    deley(100);
    digitalWrite(2,LOW);
    deley(1000);
    pinMode(2,INPUt);
    pinMode(2,OUTPUT);

    bool btn_state=0;
    btn_state=digitalRead(2);
    digitalWrite(2,btn_state);
 }