corrosion resistant soil moisture module

1. [+] is connected to the positive power supply, [-] is connected to the negative pole of the power supply. Please do not reverse the connection. It is responsible for burning the chip. After the power is connected, the power indicator lights work normally.
2. The blue potentiometer adjusts clockwise / counterclockwise to decrease the probe detection sensitivity. Take the “thermal sensor” as the default trigger, [DO] output is active low. Clockwise adjustment, the temperature can be triggered below 25 degrees. Counterclockwise is higher than 25 degrees trigger.
3. It will show that the adjustment range has been tested at the time the indicator is on. The threshold value is beyond when the counterclockwise adjustment is unable to adjust. The threshold cannot be used, otherwise it cannot be used.
4. [AO] is an analog (voltage) output, which can be directly detected by the AD port of the MCU.

Technical Specifications:

1. Product Name: Soil Humidity Sensor
2. Size: 36 * 15 * 7mm
3. Voltage: 3.3 -12VDC
4. Current:
5. Working <20mA
6. Output <30mA
7. Interface: DO: digital, AO: analog