/*
  Three zone light sensor
  April 15, 2026
*/

const int NUM_ZONES = 3;
const int PIR_PIN = 12;
const int LED_PINS[] = {6, 5, 3};
const int SENSE_PINS[] = {A2, A1, A0};

void setup() {
  Serial.begin(115200);
  pinMode(PIR_PIN, INPUT);
  for (int i = 0; i < NUM_ZONES; i++) {
    pinMode(LED_PINS[i], OUTPUT);
  }
}

void loop() {
  if (digitalRead(PIR_PIN)) {
    int lightValues[NUM_ZONES];
    for (int i = 0; i < NUM_ZONES; i++) {
      lightValues[i] = map(analogRead(SENSE_PINS[i]), 1023, 0, 0, 255);
      analogWrite(LED_PINS[i], lightValues[i]);
    }
  }
}