LPG gas leakage detection system with auto off regulator | Inspire Award Project 2023

Summary

In this project tutorial, the creator demonstrates how to build a gas leak detection system using an SG90 servo motor, MQ5 gas sensor, buzzer, and a gas regulator. The system uses a 3.7V battery, power booster, and Arduino to automatically shut off the gas regulator in case of a gas leak. The buzzer alerts the user, while the servo motor operates the regulator to prevent further danger. The video walks through assembly, wiring, and uploading the code to the Arduino, followed by a test showing the system’s fast response to gas leaks. Viewers are encouraged to comment for more details on expanding the project.

Takeaways

• 😀 The project involves creating a gas leak detection system using various components like an SG90 servo motor, MQ-5 gas sensor, and a 5V buzzer.
• 😀 A gas regulator is controlled by the servo motor to shut off the gas supply when a leak is detected, ensuring safety.
• 😀 The MQ-5 gas sensor detects gases like LPG, methane, and butane to trigger the system in case of a gas leak.
• 😀 The system is powered by a 3.7V battery, boosted to 5V using a power booster module for the proper functioning of components.
• 😀 A switch is used to turn the system on and off, providing manual control over the operation of the device.
• 😀 The servo motor requires proper wiring, with the signal connected to pin 9 of the Arduino board and power to 3.3V.
• 😀 The buzzer is connected to the circuit to alert users when a gas leak is detected, ensuring timely response.
• 😀 The Arduino board is used for controlling the logic, including reading sensor data and actuating the servo motor and buzzer.
• 😀 The system is tested by simulating a gas leak (using LPG) to ensure that the servo motor shuts off the gas regulator and the buzzer sounds.
• 😀 The servo motor may need to be upgraded to a metal gear version for better performance if the gas regulator is too tight or heavy for the plastic gear version.
• 😀 Future improvements to the project could include adding features like turning off lights and activating an exhaust fan when a gas leak is detected.

Q & A

What components are needed to build this gas leakage detection system?

To build this system, you need the following components: an SG90 motor, a 5V piezo buzzer, an MQ-5 gas sensor, a gas regulator, a 3.7V battery, a power booster module, and a switch.

What is the purpose of the power booster module in the project?

The power booster module is used to step up the 3.7V battery to 5V, which is required for powering the components, as the Arduino and other components in the system need 5V to operate properly.

How is the switch integrated into the system?

The switch is used to turn the system on and off. The positive terminal of the battery is connected to one side of the switch, and the other side of the switch is connected to the power booster module to control power flow.

How is the buzzer connected to the circuit?

The positive terminal of the piezo buzzer is connected to pin 8 on the Arduino, and the negative terminal is connected to ground.

How is the gas sensor integrated into the system?

The gas sensor is connected with three wires: VCC (positive) connected to 5V, GND (negative) connected to ground, and A0 (analog output) connected to the Arduino's A0 pin to detect gas leakage.

What role does the servo motor play in this project?

The servo motor controls the gas regulator. When the gas leakage is detected, the servo motor is activated to close the gas regulator and stop the gas flow.

Why is it important to use a metal gear servo instead of a plastic gear servo?

A metal gear servo is more durable and powerful, which is important because a plastic gear servo may not be able to handle the load of a tightly closed gas regulator, leading to failure in the system.

What happens when gas leakage is detected by the MQ-5 sensor?

When gas leakage is detected, the servo motor closes the gas regulator to stop the gas flow, and the buzzer sounds an alarm to alert the users about the leak.

How can the system be reset after it detects gas leakage?

The system can be reset by pressing the restart button, which will return the servo motor to its initial position and allow the gas regulator to open again.

Where can I find the code and circuit diagram for this project?

The code and circuit diagram for this project are available, and you can request them in the comments section or follow the instructions provided in the video for downloading.