Soil Hygrometer Detection Module Soil Moisture Sensor Pot HygrometerItem NO.: Soil Moisture Meter Detection

Soil Hygrometer Detection Module

Product Description:

1 This is a simple moisture sensor that can be used to detect soil moisture. When the soil is short of water, the module outputs a high level, and vice versa. Use this sensor to make an automatic watering device, so that your garden plants do not need to be managed.

2. Adjustable sensitivity (blue digital potentiometer adjustment in the figure)

3. Working voltage 3.3V-5V

4.module dual output mode, simple digital output, more analog output.

5. Fixed bolt holes are provided for easy installation

6. Small board PCB size: 3.2cm * 1.4cm

7. Power indicator (red) and digital switch output indicator (green)

8. Comparator uses LM393 chip, which works stably

Small Board Interface Description (4-Wire System):

1 VCC is externally connected to 3.3V-5V

2 GND external GND

3 DO small board digital output interface (0 and 1)

4 AO small board analog output interface

Instructions:

1 The soil humidity module is sensitive to environmental humidity and is generally used to detect soil humidity.

2. When the soil humidity of the module cannot reach the set threshold, the DO port outputs a high level, and when the soil humidity exceeds the set threshold, the module D0 outputs a low level;

3. The small board digital output D0 can be directly connected with the microcontroller to detect the high and low levels through the microcontroller, thereby detecting the soil moisture;

4. The small board digital output DO can directly drive the relay module and buzzer module of the store, thus forming a soil humidity alarm device;

5. Small board analog output AO can be connected with AD module, and more soil moisture can be obtained through AD conversion;