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

// Define the connections for the TM1637 display
#define CLK 3
#define DIO 4

// Define the pin for the DS18B20 sensor
#define ONE_WIRE_BUS 2

// Create instances
OneWire oneWire(ONE_WIRE_BUS);
DallasTemperature sensors(&oneWire);
TM1637Display display(CLK, DIO);

// Custom character for "C" (Celsius)
const uint8_t Celsius[] = {
  SEG_A | SEG_F | SEG_E | SEG_D  // Displays "C"
};

void setup() {
  // Start the serial communication
  Serial.begin(9600);

  // Initialize the DS18B20 sensor
  sensors.begin();

  // Initialize the TM1637 display
  display.setBrightness(0x0a);  // Set brightness (0x00 to 0x0f)
  display.clear();
}

void loop() {
  // Request temperature from the DS18B20 sensor
  sensors.requestTemperatures();

  // Get the temperature in Celsius
  float temperatureC = sensors.getTempCByIndex(0);

  // Print the temperature to the Serial Monitor
  Serial.print("Temperature: ");
  Serial.print(temperatureC);
  Serial.println(" °C");

  // Display the temperature on the TM1637 display with one decimal place and "C"
  int tempInt = int(temperatureC * 10);  // Multiply by 10 to keep one decimal place
  //display.showNumberDecEx(tempInt, 0b01000000, false, 4, 0);  // Display with decimal point
  display.showNumberDec(tempInt, false);
  // Display "C" on the last digit
  display.setSegments(Celsius, 1, 3);  // Display "C" on the 4th digit (position 3)

  // Wait for a second before the next reading
  delay(1000);
}