Low cost LPG leakage detector with buzzer indication using Microcontroller

There are various projects based on sensors and this is a low cost Microcontroller based project. Microcontroller based LPG leakage detector with buzzer indication using MQ6 (LPG Gas) sensor has applications in various areas including Industrial applications, and domestic applications. This system is very useful in hotels, homes, cars, and LPG agencies. This system has advanced safety standards. The most important feature is that it helps to prevent accidents caused due to fire. It is also useful in protecting human life, wealth, and property.

₹ 3,200

Project Code: 1092

Download the Synopsis of the project

Description of the project:

We have used an MQ6 (LPG Gas) sensor to detect LPG leakage. This sensor has a quick response time and it responds in a very short period of time. The output of the MQ6 sensor is given to a Comparator. And the output of the comparator IC is given to microcontroller 89s51. Liquid crystal display – LCD display shows a message when MQ6 crosses the threshold level. A Buzzer is also turned on to give Alert indications. We have provided a potentiometer that is used to vary the threshold level of the comparator which decides the threshold level of the leakage condition.

Video of LPG leakage detector with buzzer indication using Microcontroller

Block Diagram:

You will get the following documents through email:

1. Project Report in pdf format and in Word format ( .doc or .docx )
2. Circuit diagram
3. PCB layout
4. Microcontroller Program in assembly language
5. Hex file of the microcontroller code
6. Datasheets of all the components / ICs used in the project
7. Powerpoint presentation / PPT file

Photographs of the LPG leakage detector with buzzer indication project:

Description in detail:

Below are the various important blocks of the system.

1. Microcontroller
2. LPG Gas sensor
3. Comparator
4. LCD Display
5. Buzzer
6. Power supply

Applications of Microcontroller based LPG Gas leakage system using MQ6 sensor with Buzzer indication:

1. We can use this project in the home and hotel utility(kitchen) areas for safety purposes. LPG cylinder checks are really important.
2. Useful in domestic LPG water heater
3. Very useful in LPG/CNG fitted cars to avoid major accidents.
4. It prevents measure accidents in gas agencies (gas stations) where multi-cylinder are stored.

Hardware specification of LPG leakage detector with buzzer indication:

• 89s51 series microcontroller
• Transformer
• Voltage regulator
• Crystal
• Diodes
• Resistance
• Capacitors
• Buzzer
• MQ6 Sensor
• A 16*2 LCD display

Software specification :

• Assembly language

Advantages of Low-cost LPG leakage detector with buzzer indication using Microcontroller:

1. Quick reaction from the sensor
2. Small sensitivity for MQ3 means the alcohol sensor gives additional features in the system.
3. The high sensitivity of the LPG sensor

Future Development:

1. We can monitor more parameters using more sensors.
2. Also, we can add GSM in this project so it will become SMS based LPG leakage detection system.

Questions and answers about this project:

Question: Can we change the LPG leakage threshold level for the buzzer indication?

Answer : Yes, we have provided a potentiometer to adjust the LPG limit or threshold level.