//This wonderful ChatGPT Code

#include <OneWire.h>
#include <DallasTemperature.h>
#include "TM1637Display.h"

// Data wire for DS18B20 is plugged into port 2 on the Arduino
#define ONE_WIRE_BUS 5
OneWire oneWire(ONE_WIRE_BUS);
DallasTemperature sensors(&oneWire);

// TM1637Display setup
#define CLK 11   // Define the CLK pin of TM1637
#define DIO 12  // Define the DIO pin of TM1637
TM1637Display display(CLK, DIO);

// Custom segment code for 'C' and 'F'
uint8_t segC[] = {0x39};
uint8_t segF[] = {0x71};

// Button setup
#define BUTTON_PIN 6
bool prevButtonState = LOW;
bool currentButtonState;
bool showCelsius = true;  // By default, show temperature in Celsius

void setup(void)
{
  sensors.begin();
  pinMode(BUTTON_PIN, INPUT_PULLUP);
  display.setBrightness(0x0f);
}

void loop(void)
{
  sensors.requestTemperatures();
  float temperature = sensors.getTempCByIndex(0);

  currentButtonState = digitalRead(BUTTON_PIN);
  if (currentButtonState == LOW && prevButtonState == HIGH) {
    showCelsius = !showCelsius;  // Toggle the temperature scale
    delay(50);  // Debounce
  }
  prevButtonState = currentButtonState;

  if (!showCelsius) {
    temperature = (temperature * 9.0) / 5.0 + 32.0;
  }

  displayTemperature(temperature, showCelsius);
  delay(500);
}

void displayTemperature(float temperature, bool inCelsius)
{
  int16_t dispTemperature = round(temperature * 100);
  uint8_t segmentData[4];

  segmentData[0] = display.encodeDigit((dispTemperature / 1000) % 10);
  segmentData[1] = display.encodeDigit((dispTemperature / 100) % 10);
  segmentData[2] = display.encodeDigit((dispTemperature / 10) % 10);
  segmentData[3] = inCelsius ? segC[0] : segF[0];

  display.setSegments(segmentData);
}