Hydrogen Gas Monitoring System with ATmega16 and LED Display using Analog MQ-8 Hydrogen Gas Sensor
In this project, we will learn How to make a Hydrogen Gas Monitoring System with AVR ATmega16 Microcontroller and LED Display using Analog MQ-8 Hydrogen Gas Sensor. Here, we display and monitor the concentration of Hydrogen gas using Analog MQ-8 Hydrogen Gas Sensor in 1X8 LED Array.
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 1X8 LED Array. But the LED array can display only 8-bit at a time. So, the 1×8 LED array will first display the lower 8-bit and then the upper 2-bit of the 10-bit digital output with a delay of 500ms.
Now, we will use some source of Hydrogen Gas near Analog MQ-8 Hydrogen Gas Sensor and we will see the change in concentration of hydrogen gas in the LED Array.
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