Project Description:

The LPG Gas Leakage Detector using Arduino and 16x2 LCD Display is a project that detects the presence of LPG gas in the air and displays the gas concentration on a 16x2 LCD display. The project uses an MQ-6 gas sensor to detect the LPG gas concentration in the air. The sensor data is processed by an Arduino microcontroller, which displays the gas concentration on the LCD display.

Working Method:

The MQ-6 gas sensor is a semiconductor-based sensor that detects the concentration of LPG gas in the air. The sensor outputs an analog voltage that varies with the gas concentration. This analog voltage is read by an Arduino microcontroller using an analog input pin. The Arduino then processes the analog voltage to calculate the gas concentration in parts per million (ppm).

The gas concentration value is displayed on a 16x2 LCD display. The LCD display is connected to the Arduino using an I2C interface, which reduces the number of wires needed to connect the LCD display. The LCD display shows the gas concentration value in ppm and can be programmed to display other information such as the current date and time.

The system can be powered using a battery or a DC power supply. The project can also be expanded by adding a buzzer or a relay to trigger an alarm or activate a ventilation system when the gas concentration exceeds a certain threshold level.

To set up the project, you will need to connect the MQ-6 gas sensor and the 16x2 LCD display to the Arduino microcontroller. You will also need to program the Arduino to read the sensor data, process it, and display the gas concentration on the LCD display. The programming can be done in the Arduino IDE using the Liquid Crystal_I2 C library for the LCD display and the MQ-6 library for the gas sensor.