// ESP32-C3 - Light + Button Control
#define LDR_PIN 3       // GPIO3
#define BUTTON_PIN 2    // GPIO2
#define RED_LED 4       // GPIO4
#define GREEN_LED 5     // GPIO5

int lightThreshold = 300;
                                  
void setup() {
  pinMode(RED_LED, OUTPUT);
  pinMode(GREEN_LED, OUTPUT);
  pinMode(BUTTON_PIN, INPUT);
  pinMode(LDR_PIN, INPUT);
}
                                  
void loop() {
  int lightValue = analogRead(LDR_PIN);
  int buttonState = digitalRead(BUTTON_PIN);

  if (buttonState == HIGH) {
    digitalWrite(RED_LED, HIGH);
    digitalWrite(GREEN_LED, LOW);
  } else if (lightValue < lightThreshold) {
    digitalWrite(RED_LED, LOW);
    digitalWrite(GREEN_LED, HIGH);
  } else {
    digitalWrite(RED_LED, LOW);
    digitalWrite(GREEN_LED, LOW);
  }
                                    
  delay(100);
}