This product is a hygrometer compatible with the Arduino. It uses analog resistance to detect the moisture content of the soil and has two outputs, analogue output and digital output along with an adjustable threshold.
Specifications
- Name: Soil Moisture Sensor
- Size: 36*15*7mm
- Voltage: DC3.3-12
- Current: Working <20mA, Output <30mA
- Interface: + - DO AO DO Digital quantity/ AO Analog Quantity
- Application: Detection of Soil temperature
- Principle: Soile moisture probe detects temperature and the voltage comparator judges humidity. When humidity is greater than the set value, DO outputs a low level.
Operation
- Connect the positive pole of the power supply and the negative pole of the power supply. Do not connect the negative pole, otherwise, the chip may burn out. When the power supply is connecter, [P] the power indicator lights up. The module works normally.
- Clockwise/counterclockwise adjustment of the blue potentiometer can improve/decrease the detection sensitivity of the probe.
- When the potentiometer is clockwise adjusted to the output indicator of [S], it indicates that the range of regulation has exceeded the test threshold, and when the counterclockwise adjustment is unable to adjust, it exceeds the threshold. When adjusting, they should not exceed the threshold value, otherwise, they can not be used normally. Potentiometer regulation is used only for the mouth of [DO] and is not related to the output of [AO]
- The output of the [AO] is analog (voltage), which can be detected directly through an AD port of a single-chip computer.
Wiring indication
Shipping List
- 1 x Soil Moisture Detector Module
WARNING
