void setup() {
  Serial.begin(9600);//sets the serial port to 9600
pinMode(13, OUTPUT);
pinMode(3, INPUT);
}

void loop() {
sensorValue = analogRead(3); // read analog input pin 0
digitalRead() = digitalRead(2);
if (sensorValue > 400)}
{
  digitalWrite(13,HIGH);}
else
digitalWrite(13,LOW);
Serial.println(sensorValue,DEC);// prints the value reafd
Serial.println(sensorValue,DEC);
delay (1000);