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Earth Moisture Sensor Unit Analog and Digital Output

U019 · M5Stack

Earth Moisture Sensor Unit Analog and Digital Output photo

Unit Earth is a soil moisture sensor used for collecting moisture in soil or similar materials. The sensor has two measurement probes that are inserted into the soil to be measured. Since higher moisture content results in better conductivity, the potential difference between the two probes is measured and converted via ADC, and the detection result is sent to the M5Core. The Unit also integrates a 10K adjustable resistor for adjusting the detection threshold. Features Integrated 10K… (M5Stack U019)

Part numberU019
ManufacturerM5Stack
CategorySensors › Soil & Agriculture
Pins4

Earth Moisture Sensor Unit Analog and Digital Output pinout

PinNameTypeDescription
1SIG1bidirectionalPORT.B: GPIO/analog; PORT.C: UART - see the unit's pin map
2SIG2bidirectionalPORT.B: GPIO/analog; PORT.C: UART - see the unit's pin map
35Vpower
4GNDground

Schematic symbol and footprint

5V3SIG11SIG22GND4
Schematic symbol
1234
Footprint: Grove HY2.0 4-pin through-hole, 2.0 mm pitch — to scale, pad 1 in yellow (mm). Check against the datasheet before ordering PCBs.

Datasheet

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