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Analog MQ-8 Hydrogen Gas Sensor Interfacing with ATmega16 and LCD Display

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In this project, we will learn Analog MQ-8 Hydrogen Gas Sensor Interfacing with AVR ATmega16 microcontroller and LCD Display. Here, we will interface an Analog MQ-8 Hydrogen Gas Sensor with ATmega16 microcontroller and we will display the Analog MQ-8 Hydrogen Gas Sensor value in the 16X2 Alphanumeric LCD.

Since, the output of the Analog MQ-8 Hydrogen Gas Sensor is analog in nature and these analog signals cannot be processed directly by the ATmega16 microcontroller. So, first this signal needs to be converted to digital value to be processed by the microcontroller. The conversion can be done with the help of ADC of the AVR ATmega16 microcontroller. After converting the analog signal to digital, the microcontroller will display the digital value of Analog MQ-8 Hydrogen Gas Sensor in the 16X2 Alphanumeric LCD.

Now, we will use some source of Hydrogen Gas near Analog MQ-8 Hydrogen Gas Sensor and we will see the changes in the output of Analog MQ-8 Hydrogen Gas Sensor in the 16X2 Alphanumeric LCD.

Softwares Required

Hardwares Required

Name / Unit Price Quantity Total Price
12V, 1A DC SMPS Adaptor
Rs. 130.00
1pc
Rs.130.00
AVR Trainer Board-100 with ATmega16
Rs. 700.00
1pc
Rs.700.00
AVR USB Programmer
Rs. 350.00
1pc
Rs.350.00
RG1602A 16X2 Alphanumeric LCD Green
Rs. 150.00
1pc
Rs.150.00
Analog MQ-8 Hydrogen Gas Sensor Board
Rs. 270.00
1pc
Rs.270.00
1 to 1 Connector-Female to Female
Rs. 4.00
6pc
Rs.24.00
10 to 10 FRC Female to Female Connector
Rs. 15.00
2pc
Rs.30.00
TOTAL Rs.1654.00

Circuit Diagram

Circuit_Diagram_of_Analog_MQ-8_Hydrogen_Gas_Sensor_Interfacing_with_AVR_ATmega16_Microcontroller_and_LCD_Display.png

Video

Connection Guide

The step-by-step connection guide for Analog MQ-8 Hydrogen Gas Sensor Interfacing with ATmega16 and LCD Display is as follows:

  • Insert the DC Pin of 12V, 1A DC Adapter to the DC Socket of AVR Trainer Board-100.

    Steps - 1 ( 0f 10 )

  • Connect PortB header with LCD data header in AVR Trainer Board-100 with a 10 to 10 FRC Female Connector.

    Steps - 2 ( 0f 10 )

  • Connect RS, RW & EN pins of LCD control header with PD0, PD1 & PD2 pins of PortD header respectively in AVR Trainer Board-100 with 1 to 1 Connectors.

    Steps - 3 ( 0f 10 )

  • Connect the 16X2 Alphanumeric LCD to the LCD header of AVR Trainer Board-100.

    Steps - 4 ( 0f 10 )

  • Connect the VCC, GND & O/P pins of Analog MQ-8 Hydrogen Gas Sensor header to VCC, GND and PA0 pins of PortA header of AVR Trainer Board-100 respectively with 1 to 1 Connectors.

    Steps - 5 ( 0f 10 )

  • Connect the ISP header of AVR Trainer Board-100 with AVR USB Programmer header of AVR USB Programmer with a 10 to 10 FRC Female Connector.

    Steps - 6 ( 0f 10 )

  • Connect the AVR USB Programmer to the PC/Laptop's USB Port directly or with the help of USB AM-AF Cable.

    Steps - 7 ( 0f 10 )

  • Switch on the power with the help of Power Switch of AVR Trainer Board-100.

    Steps - 8 ( 0f 10 )

  • Download Analog MQ-8 Hydrogen Gas Sensor Interfacing with ATmega16 and LCD Display Hex file to AVR Trainer Board-100 with the help of SinaProg Hex downloader and AVR USB Programmer.

    Steps - 9 ( 0f 10 )

  • Use some source of Hydrogen Gas near the Analog MQ-8 Hydrogen Gas Sensor and see the change in output.

    Steps - 10 ( 0f 10 )

  • Insert the DC Pin of 12V, 1A DC Adapter to the DC Socket of AVR Trainer Board-100.

    Steps - 1 ( 0f 10 )

  • Connect PortB header with LCD data header in AVR Trainer Board-100 with a 10 to 10 FRC Female Connector.

    Steps - 2 ( 0f 10 )

  • Connect RS, RW & EN pins of LCD control header with PD0, PD1 & PD2 pins of PortD header respectively in AVR Trainer Board-100 with 1 to 1 Connectors.

    Steps - 3 ( 0f 10 )

  • Connect the 16X2 Alphanumeric LCD to the LCD header of AVR Trainer Board-100.

    Steps - 4 ( 0f 10 )

  • Connect the VCC, GND & O/P pins of Analog MQ-8 Hydrogen Gas Sensor header to VCC, GND and PA0 pins of PortA header of AVR Trainer Board-100 respectively with 1 to 1 Connectors.

    Steps - 5 ( 0f 10 )

  • Connect the ISP header of AVR Trainer Board-100 with AVR USB Programmer header of AVR USB Programmer with a 10 to 10 FRC Female Connector.

    Steps - 6 ( 0f 10 )

  • Connect the AVR USB Programmer to the PC/Laptop's USB Port directly or with the help of USB AM-AF Cable.

    Steps - 7 ( 0f 10 )

  • Switch on the power with the help of Power Switch of AVR Trainer Board-100.

    Steps - 8 ( 0f 10 )

  • Download Analog MQ-8 Hydrogen Gas Sensor Interfacing with ATmega16 and LCD Display Hex file to AVR Trainer Board-100 with the help of SinaProg Hex downloader and AVR USB Programmer.

    Steps - 9 ( 0f 10 )

  • Use some source of Hydrogen Gas near the Analog MQ-8 Hydrogen Gas Sensor and see the change in output.

    Steps - 10 ( 0f 10 )

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