Gravity: H2S Sensor (Calibrated) - I2C & UART
Factory-calibrated electrochemical H2S sensor (0–100ppm) with analog, I2C, and UART (0–3V) outputs, 3.3–5.5V supply. Temperature compensation included; lifespan >2 years.
Factory-calibrated electrochemical H2S sensor (0–100ppm) with analog, I2C, and UART (0–3V) outputs, 3.3–5.5V supply. Temperature compensation included; lifespan >2 years.
| Pin | Position | Type |
|---|---|---|
| DT | Smart Gas terminal 1 | Signal |
| CR | Smart Gas terminal 2 | Signal |
| - | Smart Gas terminal 3 | Ground |
| + | Smart Gas terminal 4 | Power |
| VCC | Additional header 1 | Power |
| GND | Additional header 2 | Ground |
| V0 | Additional header 3 | Signal |
| ALA | Additional header 4 | Signal |
| NA | Additional header 5 | Unknown |
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,…
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