Lab8.ino

int sensor1;
int sensor2;
char val;

void setup() {
  Serial.begin(9600);
  Serial.println("0");
}

void loop() {
  //send data only if requested
  if(Serial.available() > 0){
    char input = Serial.read();
    
    sensor1 = analogRead(A0);
    sensor2 = analogRead(A1);
    Serial.print(sensor1);
    Serial.print(",");
    Serial.println(sensor2);
  }

}