// testing one ds18b20 (skip rom)
#include <OneWire.h>
OneWire  ds(10);

uint8_t dsROM[8];
uint8_t dsData[9];

void setup() {
  // put your setup code here, to run once:
  Serial.begin(9600);
  
  ds.reset();
  ds.write(0x33); //Read Rom code


  Serial.print("ROM code: ");
  for (int i = 0; i < 8; i++)
  {
    dsROM[i] = ds.read();
    Serial.print(dsROM[i], HEX);
    Serial.print(" ");
  }
  Serial.println();

  //ds18B20 -> set 12bit res
  if(dsROM[0]==0x28) {
    ds.reset();
    ds.write(0xCC);   // skip rom
    ds.write(0x4E);   //write S
    
    ds.write(0x00);  // TH
    ds.write(0x00);   // TL
    ds.write(0b01111111);   //CFG 12bit res.
  }

}

void loop() {
  // put your main code here, to run repeatedly:

  ds.reset();
  ds.write(0x33); //Read Rom code



  Serial.print("ROM code: ");
  for (int i = 0; i < 8; i++)
  {
    dsROM[i] = ds.read();
    Serial.print(dsROM[i], HEX);
    Serial.print(" ");
  }
  Serial.println();

  ds.reset();
  ds.write(0xCC);   //skip rom
  ds.write(0x44);   // Convert (počinje mjeriti temperaturu

  delay(1000);      // treba mu barem 750ms

  ds.reset();
  ds.write(0xCC);   // skip rom
  ds.write(0xBE);   // read ScratchPad


  Serial.print("Scratchpad: ");
  for (int i = 0; i < 9; i++)
  {
    dsData[i] = ds.read();
    Serial.print(dsData[i], HEX);
    Serial.print(" ");
  }
  Serial.println();

  // ds18s20
  if(dsROM[0]==0x10) {
      Serial.println("ds18S20");
      int16_t intTemp=dsData[1];
      intTemp<<=8;
      intTemp|=dsData[0];
      float floatTemp = (float)(intTemp>>1) - 0.25 + (float)(dsData[7]-dsData[6])/dsData[7];
      Serial.println(floatTemp,3);
  }

  //ds18B20
  if(dsROM[0]==0x28) {
      Serial.println("ds18B20");
      int16_t intTemp=dsData[1];
      intTemp<<=8;
      intTemp|=dsData[0];
      float floatTemp = intTemp;
      floatTemp/=16;
      Serial.println(floatTemp,3);
  }

  Serial.println("---------");
}