
Analog steam/moisture sensor that increases output voltage with surface humidity; connects to Arduino IO shield. Not waterproof. Can serve as a rain detector, steam switch, or touch sensor.
Analogue voltage output from the steam sensor. DFRobot specifies Analog output on the blue wire.
Ground wire for the Gravity steam sensor. DFRobot specifies GND on the black wire.
Power supply wire for the Gravity steam sensor. DFRobot specifies Power on the red wire.
| Pin | Position | Type | Function | Voltage |
|---|
Analog · UART · 3.3 – 5 V · Gravity
Verify supply voltage and logic levels before powering up.
Module pins: Power / red wire, GND / black wire, Analog output / blue wire. Schematik maps them to your board in the app.
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| Analog output / blue wire | blue wire | analog | Analogue voltage output from the steam sensor. DFRobot specifies Analog output on the blue wire. | 0-4.5V at 5V supply, or 0-3.0V at 3.3V supply, per DFRobot product page. |
| GND / black wire | black wire | ground | Ground wire for the Gravity steam sensor. DFRobot specifies GND on the black wire. | 0V return |
| Power / red wire | red wire | power | Power supply wire for the Gravity steam sensor. DFRobot specifies Power on the red wire. | 3.3V or 5V power supply, per DFRobot product page. |
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