Octopus Rain/Steam Sensor Brick sensor can be connected to the Arduino IO Expansion shield directly. The output voltage will increase when the humidity of the sensor surface goes up. You can even use it as a touch panel.
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Octopus Rain/Steam Sensor Brick sensor can be connected to the Arduino IO Expansion shield directly. The output voltage will increase when the humidity of the sensor surface goes up. You can even use it as a touch panel.