#include <LiquidCrystal.h>

LiquidCrystal lcd(12, 11, 10, 9, 8, 7);

const int component_led1 = 13;
float criticalTemp = 75;
float currentTemp;

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

void setup() {
  lcd.begin(16, 2);
  lcd.print("Hello World!");
  Serial.begin(9600);
  pinMode(component_led1, OUTPUT);
}

void loop() {
  int analogValue = analogRead(A0);
  float celsius = 1 / (log(1 / (1023. / analogValue - 1)) / BETA + 1.0 / 298.15) - 273.15;
  Serial.print("Temperature: ");
  Serial.print(celsius);
  Serial.println(" ℃");
  delay(1000);

  if (celsius > criticalTemp){
    digitalWrite(component_led1, HIGH);
  }
  else {
    digitalWrite(component_led1, LOW);
  }
}