/* 
Meno: Tomáš Renčo
DATUM: 24.04.2024
PREDMET: IoT
LINK NA WOKWI : https://wokwi.com/projects/396025374334124033
PLATFORMA: ARDUINO – simulator Wokwi (platforma = kde resp. co vykonava program )
NAZOV DOMACEJ ULOHY: CW17/24 streda 24.4.2024 IoT Prax P3
POPIS ZADANIA: Oprava chybného kódu
VYSLEDOK TESTOV: 
  - Chyba bola v riadku č.26 - [R2 = R1 * (1023.0 / (float)Vo - 1.0)] opraviť sa dala zmenov R1 * () na R1 / ()
  - Ja som kód opravil prevzatím kódu od - IMRICH / LENKA factory
simulator Wokwi ukazuje ocakavane chovanie programu (ALGORITMU)
HISTORIA :
  — tento program bol prevzaty z Internetu na linku Wokwi: https://arduinomodules.info/ky-013-analog-temperature-sensor-module/
*/

int ThermistorPin = A0;
float Vo;
float R1 = 10000; // value of R1 on board
float logR2, R2, T;
float c1 = 0.001129148, c2 = 0.000234125, c3 = 0.0000000876741; //steinhart-hart coeficients for thermistor
void setup() {
  Serial.begin(9600);
}
void loop() {
  // Vo = analogRead(ThermistorPin);
  // R2 = R1 * (1023.0 / (float)Vo - 1.0); //calculate resistance on thermistor
  Vo = analogRead(ThermistorPin);
  R2 = (Vo*10000)/(1023-Vo);


  logR2 = log(R2);
  T = (1.0 / (c1 + c2*logR2 + c3*logR2*logR2*logR2)); // temperature in Kelvin
  T = T - 273.15; //convert Kelvin to Celcius
 // T = (T * 9.0)/ 5.0 + 32.0; //convert Celcius to Farenheit
  Serial.print("Temperature: "); 
  Serial.print(T);
  Serial.println(" C"); 
  delay(500);
}