const int output1 = A3;
const int output2 = A4;
 int input1;
// int input2;
const int threshold = 500;


void setup() {
  pinMode(A3, OUTPUT);
  pinMode(A4, OUTPUT);
  pinMode(A1, INPUT);
//  pinMode(A0, INPUT);
}

void loop() {

 digitalWrite(A3,LOW);
 digitalWrite(A4,LOW);
   

  input1 = analogRead(A1);
//  input2 = analogRead(A0);
  
 if (input1> 700) {
    digitalWrite(A3,HIGH);
    delay(50);   
  } 
delay(50);  
}