Simple Arduino Project with DHT11/22 sensor and TM1637 LCD

 This is a simple Arduino project based on DHT11 or DHT22 temperature&humidity sensor and TM1637 4 digit 7 segment LCD.

 

	// Include the libraries
	#include <TM1637Display.h>
	#include <Adafruit_Sensor.h>
	#include <DHT.h>
	// Define the connections pins
	#define CLK 8
	#define DIO 9
	#define DHTPIN 5
	// Create variable
	int temperature_celsius;
	int temperature_fahrenheit;
	int humidity_read;
	// Create °C symbol
	const uint8_t celsius[] = {
	SEG_A | SEG_B | SEG_F | SEG_G, // Circle
	SEG_A | SEG_D | SEG_E | SEG_F // C
	};
	// Create °F symbol
	const uint8_t fahrenheit[] = {
	SEG_A | SEG_B | SEG_F | SEG_G, // Circle
	SEG_A | SEG_E | SEG_F | SEG_G // F
	};
	// Create H symbol
	const uint8_t humidity[] = {
	SEG_B | SEG_C | SEG_G | SEG_E | SEG_F // H
	};
	// Uncomment whatever type you're using!
	#define DHTTYPE DHT11 // DHT 11
	//#define DHTTYPE DHT22 // DHT 22 (AM2302)
	// Create display object of type TM1637Display
	TM1637Display display = TM1637Display(CLK, DIO);
	// Create dht object of type DHT:
	DHT dht = DHT(DHTPIN, DHTTYPE);
	void setup() {
	// Set the display brightness (0-7)
	display.setBrightness(5);
	// Clear the display
	display.clear();
	// Setup sensor
	dht.begin();
	}
	void loop() {
	// Read the temperature as Celsius and Fahrenheit
	temperature_celsius = dht.readTemperature();
	temperature_fahrenheit = dht.readTemperature(true);
	humidity_read = dht.readHumidity();
	// Display the temperature in celsius format
	display.showNumberDec(temperature_celsius, false, 2, 0);
	display.setSegments(celsius, 2, 2);
	delay(2000);
	display.clear();
	// Display the temperature in fahrenheit format
	display.showNumberDec(temperature_fahrenheit, false, 2, 0);
	display.setSegments(fahrenheit, 2, 2);
	delay(2000);
	display.clear();
	// Display the humidity
	display.showNumberDec(humidity_read, false, 2, 0);
	display.setSegments(humidity, 1, 3);
	delay(2000);
	display.clear();
	}

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