M5Stack Soil Moisture Sensor Unit

The Earth Moisture Unit from M5Stack is a soil moisture sensor for measuring soil moisture and similar materials. The two pads act as probes and are inserted into the soil. The higher the moisture level in the soil, the better the conductivity between the two pads, so the sensor leads to lower resistance and a higher SIG output (analog voltage). The moisture sensor can be read out either analog via the ADC or via a digital input. If the sensor is read out via the digital sensor, the threshold at which the signal is switched can be set via the potentiometer.

Downloads and Links:

• Quick Start Guide
  
• M5Stack Github Example Code Arduino
• M5Stack Github Example Code UiFlow
• Official M5Stack Forum

Technical Details:

• Analog and digital output
• Digital output adjustable threshold via potentiometer
• Mounting: two Lego compatible holes
• Connection Plug: PH2.0 4 Pin
• Interface: Grove
• Dimensions: 64 x 24 x 8mm
• Weight: 17g

Package Includes:

• 1x M5Stack Earth Moisture Sensor Unit
• 1x GROVE Cable 20cm
• 1x Storage Box