#define led1 PA1
#define led2 PA2
#define button PB1


void setup() {
  pinMode(PA1, OUTPUT);
  pinMode(PA2, OUTPUT);
  pinMode(PB1, INPUT_PULLDOWN);
}

void loop() {
   digitalWrite(PA2, LOW);
   blinken();
   button();
  
}


void blinken(){
  digitalWrite(PA1, LOW);
  delay(500);
  digitalWrite(PA1, HIGH);
  delay(500);
}

void button{
  for(int x = 0; x<100; x++){
    if(x==100){
      DigitalRead(PB1);
      x=0;
      if(PB1==1){
        DigitalWrite(PA2,HIGH);
        int y = 1;
      }
      if(y==1){
        DigitalWrite(PA2,LOW)
      }

      

    }

  }



}