Yep, that's the school work. I tried this,but I don't understand how to turn them off at the different time.
#define light Sensor A0
void setup() { pinMode (9, OUTPUT);
pinMode(10, OUTPUT);
pinMode(11. OUTPUT);
pinMode(light Sensor, INPUT);
Serial.begin(9600);
}
void loop() {
int lightLevel = analogRead(light Sensor); Serial.println(lightLevel);
digitalWrite(9, HIGH); 10 digitalWrite(10, HIGH); 17 digitalWrite(11. HIGH); 18
if ( lightLevel > 935) { digitalWrite(lightLevel, LOW); //Turn led off
} }