ArrowTechCart Soil Moisture Sensor Module is used to accurately measure the moisture in the substrate (Moisture Sensor), which gives you the opportunity to give your plants the best care. It uses 2 soil probes to detect the moisture of the soil. When the surface of the plates touches the moist soil, a signal is generated at the digital output of the module. The operating voltage is 5V, which allows it to be used with common microcontrollers.

Digital output D0 can be connected directly to the microcontroller to detect soil moisture. If the analog output A0 and the AD module are connected via an AD converter, you can determine more accurate values of soil moisture. The sensor has a switching contact adjustable with potentiometer.

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Wiring Connection

• VCC: 3.3V-5V
  
• GND: GND
  
• DO: Digital output interface(0 and 1)
  
• AO: Analog output interface

Feature 

• Dual output mode, analog output more accurate
• A fixed bolt hole for easy installation
• With power indicator (red) and digital switching output indicator (green)
• Having LM393 comparator chip, stable

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*Note: Product Image are shown for illustrative purposes only and may different from the actual product.