#define RED_LED_ENABLE_N   11
#define GREEN_LED_ENABLE_N 10
#define BLUE_LED_ENABLE_N  9
#define BUTTON_IN          7
#define ANALOG_IN          A0

const float BETA = 3950; // should match the Beta Coefficient of the thermistor
int count = 0;

void setup() {
  // put your setup code here, to run once:
  pinMode(RED_LED_ENABLE_N, OUTPUT);
  pinMode(GREEN_LED_ENABLE_N, OUTPUT);
  pinMode(BLUE_LED_ENABLE_N, OUTPUT);
  pinMode(BUTTON_IN, INPUT_PULLUP);
  digitalWrite(RED_LED_ENABLE_N, HIGH);
  digitalWrite(GREEN_LED_ENABLE_N, HIGH);
  digitalWrite(BLUE_LED_ENABLE_N, HIGH);

  Serial.begin(9600);
}

void loop() {
  // Read from temperature sensor
  int analogValue = analogRead(ANALOG_IN);

  // See: https://docs.wokwi.com/parts/wokwi-ntc-temperature-sensor
  float celsius = 1.0f / (log(1.0f / (1023.0f / analogValue - 1)) / BETA + 1.0f / 298.15f) - 273.15f;

  // print every 1 second
  if (count == 10)
  {
    Serial.print("Temperature: ");
    Serial.print(celsius);
    Serial.println(" ℃");
    count = 0;
  }
  count++;

  if (celsius > 40.0f)
  {
    digitalWrite(RED_LED_ENABLE_N, digitalRead(BUTTON_IN));
  }
  else if (celsius < 0.0f)
  {
    digitalWrite(BLUE_LED_ENABLE_N, digitalRead(BUTTON_IN));
  }
  else
  {
    digitalWrite(GREEN_LED_ENABLE_N, digitalRead(BUTTON_IN));
  }

  delay(100);
}