Soil Moisture Sensor Module
- Operating voltage: 3.3V~5V
- 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
- Panel PCB Dimension: Approx.3cm x ...
Soil moisture module is most sensitive to the ambient, generally used to detect the moisture content of the soil.
When the module can not reach the threshold value, DO port output high, when the the soil humidity exceeds a set threshold value, the module D0 output low;
The small board digital output D0 can be connected directly to the MCU, MCU to detect high and low, to detect soil moisture;
Small board digital output DO can directly drive the buzzer module or relay module in our store, which can form a soil moisture alarm equipment;
Small board analog output AO and AD module connected through the AD converter, you can get more precise values of soil moisture.
- VCC connect to 3.3V-5V
- GND connect to GND
- DO digital value output connector（0 or 1）
- AO analog value output connector
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