EXP 6 CREATE A SMARTLIGHT USING RASPBERRY PI AND ARDUINO UNO

 

const int ledpin = 13; // ledpin and lightpin are not changed throughout the process
const int lightpin = A2;
const int LIGHT = 10; // sets LIGHT value for light sensor
void setup() {
  Serial.begin(9600);
  pinMode(ledpin, OUTPUT);
  pinMode(lightpin, INPUT);
}
void loop() {
  int lightsens = analogRead(lightpin); // reads analog data from light sensor
  if (lightsens < LIGHT) {
    digitalWrite(ledpin, HIGH); //turns led on
    delay(1500);
  }
  else {
    digitalWrite(ledpin, LOW);
  }
}