/*
  Arduino | coding-help
  小兔子 [KOSM],  — 9:51 PM 9/7/26
  hii im really new to coding  and i wanted to know how i
  could inprove/ fix this code?
  im trying to get the ldr to activate the 2 leds when its dark
  but im not sure im doing this right
*/

const int LED_CAT_ONE = 11;
const int LED_CAT_TWO = 10;
const int LED_RED_LIGHT = 9;
const int BTN_PIN = 2;

int oldBtnValue = true; // INPUT_PULLUP idles HIGH
int oldPwmVal = -1;

void setup() {
  Serial.begin(115200);
  pinMode(LED_CAT_ONE, OUTPUT);
  pinMode(LED_CAT_TWO, OUTPUT);
  pinMode(LED_RED_LIGHT, OUTPUT);
  pinMode(BTN_PIN, INPUT_PULLUP);
}

void loop() {
  // check button
  int btnValue = digitalRead(BTN_PIN);
  if (btnValue != oldBtnValue)  {
    if (btnValue == LOW) {
      Serial.println("Button was pressed");
      digitalWrite(LED_RED_LIGHT, HIGH);
      //digitalWrite(LED_CAT_ONE, LOW);
      //digitalWrite(LED_CAT_TWO, LOW);
    } else {
      Serial.println("Button was released");
      digitalWrite(LED_RED_LIGHT, LOW);
      //digitalWrite(LED_CAT_ONE, LOW);
      //digitalWrite(LED_CAT_TWO, LOW);
    }
    delay(20);  // short debounce delay
    oldBtnValue = btnValue;
  }
  // check pot
  int potVal = analogRead(A0);
  int pwmVal = map(potVal, 0, 1023, 0, 255);
  analogWrite(LED_CAT_ONE, pwmVal);
  analogWrite(LED_CAT_TWO, pwmVal);
  if (pwmVal != oldPwmVal)  {
    Serial.print("PWM: ");
    Serial.println(pwmVal);
    oldPwmVal = pwmVal;
  }
}