// #ifndef OneWire_h
// #define OneWire_h

// #ifdef __cplusplus

#include <stdint.h>

#if defined(__AVR__)
#include <util/crc16.h>
#endif

// #if ARDUINO >= 100
// #include <Arduino.h>       // for delayMicroseconds, digitalPinToBitMask, etc
// #else
// #include "WProgram.h"      // for delayMicroseconds
// #include "pins_arduino.h"  // for digitalPinToBitMask, etc
// #endif

// You can exclude certain features from OneWire.  In theory, this
// might save some space.  In practice, the compiler automatically
// removes unused code (technically, the linker, using -fdata-sections
// and -ffunction-sections when compiling, and Wl,--gc-sections
// when linking), so most of these will not result in any code size
// reduction.  Well, unless you try to use the missing features
// and redesign your program to not need them!  ONEWIRE_CRC8_TABLE
// is the exception, because it selects a fast but large algorithm
// or a small but slow algorithm.

// you can exclude onewire_search by defining that to 0
#ifndef ONEWIRE_SEARCH
#define ONEWIRE_SEARCH 1
#endif

// You can exclude CRC checks altogether by defining this to 0
#ifndef ONEWIRE_CRC
#define ONEWIRE_CRC 1
#endif

// Select the table-lookup method of computing the 8-bit CRC
// by setting this to 1.  The lookup table enlarges code size by
// about 250 bytes.  It does NOT consume RAM (but did in very
// old versions of OneWire).  If you disable this, a slower
// but very compact algorithm is used.
#ifndef ONEWIRE_CRC8_TABLE
#define ONEWIRE_CRC8_TABLE 1
#endif

// You can allow 16-bit CRC checks by defining this to 1
// (Note that ONEWIRE_CRC must also be 1.)
#ifndef ONEWIRE_CRC16
#define ONEWIRE_CRC16 1
#endif

// Board-specific macros for direct GPIO
#include "util/OneWire_direct_regtype.h"

class OneWire
{
  private:
    IO_REG_TYPE bitmask;
    volatile IO_REG_TYPE *baseReg;

#if ONEWIRE_SEARCH
    // global search state
    unsigned char ROM_NO[8];
    uint8_t LastDiscrepancy;
    uint8_t LastFamilyDiscrepancy;
    bool LastDeviceFlag;
#endif

  public:
    OneWire() { }
    OneWire(uint8_t pin) { begin(pin); }
    void begin(uint8_t pin);

    // Perform a 1-Wire reset cycle. Returns 1 if a device responds
    // with a presence pulse.  Returns 0 if there is no device or the
    // bus is shorted or otherwise held low for more than 250uS
    uint8_t reset(void);

    // Issue a 1-Wire rom select command, you do the reset first.
    void select(const uint8_t rom[8]);

    // Issue a 1-Wire rom skip command, to address all on bus.
    void skip(void);

    // Write a byte. If 'power' is one then the wire is held high at
    // the end for parasitically powered devices. You are responsible
    // for eventually depowering it by calling depower() or doing
    // another read or write.
    void write(uint8_t v, uint8_t power = 0);

    void write_bytes(const uint8_t *buf, uint16_t count, bool power = 0);

    // Read a byte.
    uint8_t read(void);

    void read_bytes(uint8_t *buf, uint16_t count);

    // Write a bit. The bus is always left powered at the end, see
    // note in write() about that.
    void write_bit(uint8_t v);

    // Read a bit.
    uint8_t read_bit(void);

    // Stop forcing power onto the bus. You only need to do this if
    // you used the 'power' flag to write() or used a write_bit() call
    // and aren't about to do another read or write. You would rather
    // not leave this powered if you don't have to, just in case
    // someone shorts your bus.
    void depower(void);

#if ONEWIRE_SEARCH
    // Clear the search state so that if will start from the beginning again.
    void reset_search();

    // Setup the search to find the device type 'family_code' on the next call
    // to search(*newAddr) if it is present.
    void target_search(uint8_t family_code);

    // Look for the next device. Returns 1 if a new address has been
    // returned. A zero might mean that the bus is shorted, there are
    // no devices, or you have already retrieved all of them.  It
    // might be a good idea to check the CRC to make sure you didn't
    // get garbage.  The order is deterministic. You will always get
    // the same devices in the same order.
    bool search(uint8_t *newAddr, bool search_mode = true);
#endif

#if ONEWIRE_CRC
    // Compute a Dallas Semiconductor 8 bit CRC, these are used in the
    // ROM and scratchpad registers.
    static uint8_t crc8(const uint8_t *addr, uint8_t len);

#if ONEWIRE_CRC16
    // Compute the 1-Wire CRC16 and compare it against the received CRC.
    // Example usage (reading a DS2408):
    //    // Put everything in a buffer so we can compute the CRC easily.
    //    uint8_t buf[13];
    //    buf[0] = 0xF0;    // Read PIO Registers
    //    buf[1] = 0x88;    // LSB address
    //    buf[2] = 0x00;    // MSB address
    //    WriteBytes(net, buf, 3);    // Write 3 cmd bytes
    //    ReadBytes(net, buf+3, 10);  // Read 6 data bytes, 2 0xFF, 2 CRC16
    //    if (!CheckCRC16(buf, 11, &buf[11])) {
    //        // Handle error.
    //    }     
    //          
    // @param input - Array of bytes to checksum.
    // @param len - How many bytes to use.
    // @param inverted_crc - The two CRC16 bytes in the received data.
    //                       This should just point into the received data,
    //                       *not* at a 16-bit integer.
    // @param crc - The crc starting value (optional)
    // @return True, iff the CRC matches.
    static bool check_crc16(const uint8_t* input, uint16_t len, const uint8_t* inverted_crc, uint16_t crc = 0);

    // Compute a Dallas Semiconductor 16 bit CRC.  This is required to check
    // the integrity of data received from many 1-Wire devices.  Note that the
    // CRC computed here is *not* what you'll get from the 1-Wire network,
    // for two reasons:
    //   1) The CRC is transmitted bitwise inverted.
    //   2) Depending on the endian-ness of your processor, the binary
    //      representation of the two-byte return value may have a different
    //      byte order than the two bytes you get from 1-Wire.
    // @param input - Array of bytes to checksum.
    // @param len - How many bytes to use.
    // @param crc - The crc starting value (optional)
    // @return The CRC16, as defined by Dallas Semiconductor.
    static uint16_t crc16(const uint8_t* input, uint16_t len, uint16_t crc = 0);
#endif
#endif
};

// Prevent this name from leaking into Arduino sketches
#ifdef IO_REG_TYPE
#undef IO_REG_TYPE
#endif

#endif // __cplusplus
#endif // OneWire_h


#ifndef DallasTemperature_h
#define DallasTemperature_h

#define DALLASTEMPLIBVERSION "4.0.5"

// Configuration
#ifndef REQUIRESNEW
#define REQUIRESNEW false
#endif

#ifndef REQUIRESALARMS
#define REQUIRESALARMS true
#endif

// Includes
// #include <inttypes.h>
// #include <Arduino.h>

// #ifdef __STM32F1__
// #include <OneWireSTM.h>
// #else
// #include <OneWire.h>
// #endif

// Constants for device models
#define DS18S20MODEL 0x10  // also DS1820
#define DS18B20MODEL 0x28  // also MAX31820
#define DS1822MODEL  0x22
#define DS1825MODEL  0x3B  // also MAX31850
#define DS28EA00MODEL 0x42

// Error Codes
#define DEVICE_DISCONNECTED_C -127
#define DEVICE_DISCONNECTED_F -196.6
#define DEVICE_DISCONNECTED_RAW -7040

#define DEVICE_FAULT_OPEN_C -254
#define DEVICE_FAULT_OPEN_F -425.199982
#define DEVICE_FAULT_OPEN_RAW -32512

#define DEVICE_FAULT_SHORTGND_C -253
#define DEVICE_FAULT_SHORTGND_F -423.399994
#define DEVICE_FAULT_SHORTGND_RAW -32384

#define DEVICE_FAULT_SHORTVDD_C -252
#define DEVICE_FAULT_SHORTVDD_F -421.599976
#define DEVICE_FAULT_SHORTVDD_RAW -32256

// Configuration Constants
#define MAX_CONVERSION_TIMEOUT 750
#define MAX_INITIALIZATION_RETRIES 3
#define INITIALIZATION_DELAY_MS 50

typedef uint8_t DeviceAddress[8];

class DallasTemperature {
public:
    struct request_t {
        bool result;
        unsigned long timestamp;
        operator bool() { return result; }
    };
    
    // Constructors
    DallasTemperature();
    DallasTemperature(OneWire*);
    DallasTemperature(OneWire*, uint8_t);

    // Setup & Configuration
    void setOneWire(OneWire*);
    void setPullupPin(uint8_t);
    void begin(void);
    bool verifyDeviceCount(void);

    // Device Information
    uint8_t getDeviceCount(void);
    uint8_t getDS18Count(void);
    bool validAddress(const uint8_t*);
    bool validFamily(const uint8_t* deviceAddress);
    bool getAddress(uint8_t*, uint8_t);
    bool isConnected(const uint8_t*);
    bool isConnected(const uint8_t*, uint8_t*);

    // Scratchpad Operations
    bool readScratchPad(const uint8_t*, uint8_t*);
    void writeScratchPad(const uint8_t*, const uint8_t*);
    bool readPowerSupply(const uint8_t* deviceAddress = nullptr);

    // Resolution Control
    uint8_t getResolution();
    void setResolution(uint8_t);
    uint8_t getResolution(const uint8_t*);
    bool setResolution(const uint8_t*, uint8_t, bool skipGlobalBitResolutionCalculation = false);

    // Conversion Configuration
    void setWaitForConversion(bool);
    bool getWaitForConversion(void);
    void setCheckForConversion(bool);
    bool getCheckForConversion(void);

    // Temperature Operations
    request_t requestTemperatures(void);
    request_t requestTemperaturesByAddress(const uint8_t*);
    request_t requestTemperaturesByIndex(uint8_t);
    int32_t getTemp(const uint8_t*, byte retryCount = 0);
    float getTempC(const uint8_t*, byte retryCount = 0);
    float getTempF(const uint8_t*);
    float getTempCByIndex(uint8_t);
    float getTempFByIndex(uint8_t);

    // Conversion Status
    bool isParasitePowerMode(void);
    bool isConversionComplete(void);
    static uint16_t millisToWaitForConversion(uint8_t);
    uint16_t millisToWaitForConversion();

    // EEPROM Operations
    bool saveScratchPadByIndex(uint8_t);
    bool saveScratchPad(const uint8_t* = nullptr);
    bool recallScratchPadByIndex(uint8_t);
    bool recallScratchPad(const uint8_t* = nullptr);
    void setAutoSaveScratchPad(bool);
    bool getAutoSaveScratchPad(void);

#if REQUIRESALARMS
    typedef void AlarmHandler(const uint8_t*);
    void setHighAlarmTemp(const uint8_t*, int8_t);
    void setLowAlarmTemp(const uint8_t*, int8_t);
    int8_t getHighAlarmTemp(const uint8_t*);
    int8_t getLowAlarmTemp(const uint8_t*);
    void resetAlarmSearch(void);
    bool alarmSearch(uint8_t*);
    bool hasAlarm(const uint8_t*);
    bool hasAlarm(void);
    void processAlarms(void);
    void setAlarmHandler(const AlarmHandler*);
    bool hasAlarmHandler();
#endif

    // User Data Operations
    void setUserData(const uint8_t*, int16_t);
    void setUserDataByIndex(uint8_t, int16_t);
    int16_t getUserData(const uint8_t*);
    int16_t getUserDataByIndex(uint8_t);

    // Temperature Conversion Utilities
    static float toFahrenheit(float);
    static float toCelsius(float);
    static float rawToCelsius(int32_t);
    static int16_t celsiusToRaw(float);
    static float rawToFahrenheit(int32_t);

#if REQUIRESNEW
    void* operator new(unsigned int);
    void operator delete(void*);
#endif

    // Conversion Completion Methods
    void blockTillConversionComplete(uint8_t);
    void blockTillConversionComplete(uint8_t, unsigned long);
    void blockTillConversionComplete(uint8_t, request_t);

private:
    typedef uint8_t ScratchPad[9];

    // Internal State
    bool parasite;
    bool useExternalPullup;
    uint8_t pullupPin;
    uint8_t bitResolution;
    bool waitForConversion;
    bool checkForConversion;
    bool autoSaveScratchPad;
    uint8_t devices;
    uint8_t ds18Count;
    OneWire* _wire;

    // Internal Methods
    int32_t calculateTemperature(const uint8_t*, uint8_t*);
    bool isAllZeros(const uint8_t* const scratchPad, const size_t length = 9);
    void activateExternalPullup(void);
    void deactivateExternalPullup(void);

#if REQUIRESALARMS
    uint8_t alarmSearchAddress[8];
    int8_t alarmSearchJunction;
    uint8_t alarmSearchExhausted;
    AlarmHandler* _AlarmHandler;
#endif
};

#endif // DallasTemperature_h

// Pin data DS18B20
#define ONE_WIRE_BUS D2

// Setup OneWire dan DallasTemperature
OneWire oneWire(ONE_WIRE_BUS);
DallasTemperature sensors(&oneWire);

void setup() {
  pinMode(ONE_WIRE_BUS, INPUT);
  digitalWrite(ONE_WIRE_BUS, LOW);

  Serial.begin(115200);
  sensors.begin();
  
  delay(1000);
}

void loop() {
  // Request pembacaan suhu dari DS18B20
  sensors.requestTemperatures();
  
  // Ambil suhu dalam Celsius
  float tempC = sensors.getTempCByIndex(0);
  
  // Print suhu ke serial monitor
  if (tempC == DEVICE_DISCONNECTED_C) {
    Serial.println("Error: No temperature reading");
  } else {
    Serial.print("Temperature: ");
    Serial.print(tempC);
    Serial.println(" C");
  }

  delay(1000); // Delay 1 detik
}