Gravity: Analog Hydrogen Gas Sensor (MQ8)
MQ8-based analog sensor with high sensitivity to hydrogen and low cross-sensitivity to alcohol, LPG, and fumes. Operates on 5 V; adjustable sensitivity via onboard potentiometer.
Pinout
- VCCType · Power
- GNDType · Ground
- SIGType · Signal
| Pin | Type |
|---|---|
| VCC | Power |
| GND | Ground |
| SIG | Signal |
Pin details
3 connections- VCCPower
- GNDGround
- SIGSignal
Start wiring
I2C · Analog · UART · 3.3 – 5 V · Breakout
Waveshare lists MQ-2 for combustible gases and smoke, MQ-3 for alcohol, and MQ-135 for mixed indoor pollutants such as NH3, NOx, alcohol,…
Module pins: VCC, GND, SIG. Schematik maps them to your board in the app.
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