Temperature and Humidity Monitoring System Using Arduino Uno and DHT11 Sensor

Welcome to make my projects channel
1. Introduction
This project aims to monitor environmental temperature and humidity using an Arduino Uno 3, a DHT11 sensor, and a 16x2 LCD display. The system collects real-time temperature and humidity data from the surrounding environment and displays it on the LCD screen. The system is powered by a 12V power supply adapter and is designed for home, office, and industrial applications where monitoring these parameters is crucial.

2. Components Used
- Arduino Uno 3: A microcontroller that processes data from the DHT11 sensor and controls the display.
- DHT11 Sensor: A sensor that provides digital readings of temperature and humidity.
- 16x2 LCD Display: A display module to visualize temperature (in degrees Celsius) and humidity (in percentage).
- 12V Power Supply Adapter: Used to power the Arduino and the connected components.

3. Working Principle
The system operates by continuously measuring temperature and humidity through the DHT11 sensor. The sensor sends data to the Arduino Uno, which processes the values and sends the relevant information to the 16x2 LCD display for visual output. This allows users to monitor real-time changes in temperature and humidity directly on the screen.

4. System Operation

1. DHT11 Sensor:
- The DHT11 sensor detects both the temperature and humidity levels in the surrounding environment. It sends this data in digital form to the Arduino Uno.

2. Arduino Uno:
- The Arduino receives the data from the DHT11 sensor. It processes the information and prepares it for display on the LCD.
- The Arduino uses the 12V power supply to operate and supply power to the sensor and display.

3. 16x2 LCD Display:
- The processed temperature and humidity data are displayed on the 16x2 LCD. The first row typically shows the temperature, while the second row shows the humidity. The display updates in real time as the sensor continuously monitors the environment.

5. Applications
- Home and Office Monitoring: Provides real-time information on indoor temperature and humidity for better comfort and health.
- Greenhouses: Helps monitor climate conditions to support plant growth.
-Industrial Use: Monitors ambient temperature and humidity in factories, warehouses, and industrial units.
- Weather Monitoring: Can be part of a weather station setup for collecting environmental data.

6. Advantages
- Real-Time Monitoring: The system displays live temperature and humidity readings, ensuring users can take immediate action if needed.
- Simple and Efficient: The use of an LCD display allows users to see the data at a glance without needing additional equipment like computers or phones.
- Low-Cost Solution: With basic components like the Arduino Uno, DHT11 sensor, and LCD display, the system is cost-effective to build and maintain.

7. Conclusion
The Temperature and Humidity Monitoring System effectively monitors environmental conditions using a DHT11 sensor and displays the data on a 16x2 LCD display It is a simple yet powerful project that provides real-time data for various applications, from home use to industrial environments. Powered by a 12V adapter, the system ensures a reliable and continuous operation.

8. Future Enhancements
- Wireless Monitoring: Adding an IoT module (such as ESP8266) for remote monitoring via the internet.
- Data Logging: Implementing an SD card module for data logging to track long-term temperature and humidity trends.
- Alerts: Incorporating alarms or notifications when temperature or humidity exceeds pre-set levels.