// Reference https://docs.wokwi.com/parts/wokwi-ntc-temperature-sensor

#define sensorPin A0
#define BETA 3950
#define LED_COUNT 10

int ledArray[] = {4,5,6,7,8,9,10,11,12,13};
int led_ON_OFF[] = {LOW,LOW,LOW,LOW,LOW,LOW,LOW,LOW,LOW,LOW};
float quantize_temp[] = { -24.00, -13.60, -3.20, 7.20, 17.60, 28.00, 38.40, 48.80, 59.20, 69.60 , 80.00};

void setup() {
    // initialize LEDs and sensor pin
    for( int num = 0; num < LED_COUNT; num++ )
    {
      pinMode(ledArray[num], OUTPUT);
    }
    pinMode(sensorPin, INPUT);

    //Serial.begin(9600);
}

void loop() {
  // Read the sensor value , calculate the temperature, light up the leds
  int analog_Value = analogRead(sensorPin);

  float celsius = 1 / (log(1 / (1023.0 / analog_Value - 1)) / BETA + 1.0 / 298.15) - 273.15;

  quantize_temperture(celsius);

  for( int num = 0; num < LED_COUNT; num++ )
  {
    if (led_ON_OFF[num] == HIGH) {
      digitalWrite(ledArray[num], HIGH); // Turn ON
    } else {
      digitalWrite(ledArray[num], LOW);  // Turn OFF
    }
    led_ON_OFF[num] == LOW;
  }
  delay(10);
}

void quantize_temperture(float celsius)
{
    for( int arr = 0; arr < LED_COUNT; arr++ )
    {
      if( (celsius >= quantize_temp[arr] )&& (celsius < quantize_temp[arr+1]))
      {
        led_ON_OFF[arr] = HIGH;
      }
      else{
        led_ON_OFF[arr] = LOW;
      }
      if( celsius >= quantize_temp[10])
        led_ON_OFF[9] = HIGH;
    }
}