Temperature Display

Introduction: The temperature display is a common project in the field of electronics and programming. It allows us to measure and display the current temperature in a specific environment. This article will guide you through the process of creating a temperature display using Arduino, providing example codes and a list of components required for the project.

Project: The goal of this project is to create a temperature display that can accurately measure and show the temperature in Celsius. The display will be connected to an Arduino board, which will read the temperature from a sensor and display it on a LCD screen. This project can be useful in various applications such as home automation, weather monitoring, or temperature control systems.

Components Required:

• Arduino Uno board
• DHT11 temperature and humidity sensor
• 16x2 LCD screen
• Breadboard
• Jumper wires
• Potentiometer (for LCD contrast adjustment)

Examples: Example 1: Reading and Displaying Temperature

#include <dht.h>
#include <LiquidCrystal.h>

#define DHTPIN 2
#define DHTTYPE DHT11

DHT dht(DHTPIN, DHTTYPE);
LiquidCrystal lcd(12, 11, 5, 4, 3, 2);

void setup() {
  lcd.begin(16, 2);
  dht.begin();
}

void loop() {
  float temperature = dht.readTemperature();

  lcd.setCursor(0, 0);
  lcd.print("Temperature:");
  lcd.setCursor(0, 1);
  lcd.print(temperature);
  lcd.print("C");

  delay(2000);
}

Explanation:

• The code starts by including the necessary libraries for the DHT sensor and LCD screen.
• The DHTPIN and DHTTYPE are defined to specify the pin connected to the DHT sensor and the sensor type (DHT11 in this case).
• In the setup function, the LCD screen is initialized with its dimensions (16x2) and the DHT sensor is started.
• The loop function reads the temperature from the DHT sensor and stores it in the "temperature" variable.
• The temperature is then displayed on the LCD screen, along with a label and the unit (Celsius).
• The delay function is used to wait for 2 seconds before repeating the process.