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aHR0cDovL2ZyZWVzaGlwLmNvLmty![](https://ae01.alicdn.com/kf/S14757fd8e1704218a9c93d29a94c20c8i/5.jpg)
- Á¶°Ç: »õ·Î¿î
- À¯Çü: Soil moisture meter detection module
- ±Ù¿ø: CN (Á¤Ç°)
¿É¼ÇÁ¤º¸[(1202)Module set] [(94)Probes]
i.Product Description:
1 This is a simple moisture sensor can be used to detect the soil moisture, when the soil is lack of water, the module output a high level, and vice versa output a low level. Use this sensor to make an automatic watering device, so that the plants in your garden do not need to be managed by people.
2 Adjustable sensitivity (blue digital potentiometer adjustment in the picture)
4 Operating voltage 3.3V-5V
5 Module dual output mode, digital output is simple, analog output is more accurate
6 With fixing bolt hole, easy to install
7 Small board PCB size: 3cm * 1.6cm
8 Power indicator (red) and digital switch output indicator (green)
9 Comparator using LM393 chip, stable work
ii. Small board interface description (4-wire system)
1 VCC External 3.3V-5V
2 GND External GND
3 DO small board digital output interface (0 and 1)
4 AO small board analog output interface
iii.Instructions for use:
1. The soil moisture module is most sensitive to the environmental humidity and is generally used to detect the moisture of the soil.
2. the module outputs high level at the DO port when the soil humidity does not reach the set threshold, and outputs low level at the module D0 when the soil humidity exceeds the set threshold.
3. the small board digital output D0 can be directly connected to the microcontroller, through the microcontroller to detect the high and low level, thus to detect the soil moisture.
4. small board digital output DO can directly drive our relay module, buzzer module, etc., which can form a soil moisture alarm device.
5. small board analog output AO can be connected with AD module, through AD conversion, can get more accurate value of soil moisture.
![](https://ae03.alicdn.com/kf/S1b643054c3e745668594f82b8da348ebH.jpg) ![](https://ae03.alicdn.com/kf/S29b6aaccd4c246ebb4990bc4b1548496G.jpg)
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