/*
  Robotika – Course 44, Lesson 2 · BONUS
  Three zones with if / else if / else — giving names to light levels.

  One sensor, three possible outcomes. When you have more than two cases,
  you chain them: if ... else if ... else. The FIRST match wins, so order
  the tests from the brightest level down.

  Wiring: just the light sensor (AO -> A0), like Level 1.
  Cover the sensor with your hand and watch the word change in the monitor.
*/

const int LIGHT_PIN = A0;

const int BRIGHT_LEVEL = 700;   // above this  = bright daylight
const int DIM_LEVEL    = 300;   // between DIM and BRIGHT = a dim room

void setup() {
  Serial.begin(9600);
}

void loop() {
  int light = analogRead(LIGHT_PIN);

  Serial.print(light);
  Serial.print("  ->  ");

  if (light > BRIGHT_LEVEL) {
    Serial.println("BRIGHT");
  } else if (light > DIM_LEVEL) {
    Serial.println("DIM");
  } else {
    Serial.println("DARK");
  }

  delay(300);
}