MQ8 Hydrogen Sensor Module | MQ8 Gas Sensor

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Hydrogen Sensor Module (MQ-8) is a user-friendly gas sensor designed to detect hydrogen concentrations in the air. It can sense hydrogen levels ranging from 100 to 10,000 ppm.

This module provides both an analog output, which varies based on gas concentration, and a digital output for simplified integration. The onboard potentiometer allows users to set a threshold, triggering the digital output when the gas concentration exceeds the preset limit.

Operating the module is straightforward—simply power it with 5V, adjust the threshold, and begin monitoring hydrogen levels in the surrounding air. An onboard LED indicator alerts users to the presence of gas.

The digital output easily interfaces with microcontrollers and other circuits, while the analog output can be connected to an ADC for more detailed readings.