Specifications:-
- 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 1.5cm
- Soil Probe Dimension: Approx. 6cm x 3cm
- Cable Length: Approx.21cm
- VCC: 3.3V-5V
- GND: GND
- DO: digital output interface(0 and 1)
- AO: analog output interface
Connections:-
- VCC connect to 3.3V-5V
- GND connect to GND
- DO digital value output connector（0 or 1）
- AO analog value output connector
Usage:-
- 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;
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