Description
Through the potentiometer adjusting soil moisture threshold control, can automatically in garden, garden automatic watering and family flowerpot soil humidity control and a variety of electronic than
Race, electronic building blocks, Arduino design, etc..
Product introduction:
1 the use of the company's production of high quality soil sensor to do the detection of soil moisture, the surface of nickel plating treatment, there is a widening of the area, can improve the guide
Electrical properties, prevent contact with the soil easy to rust problem, extend the service life;
2. The product can be a wide range of control soil humidity and control the corresponding threshold value by adjusting the potentiometer and the humidity is lower than set value, dissolved oxygen (do) and outputs a high level, higher than the
Set value when the DO output is low;
3 comparator uses LM393 chip, work stability
4 working voltage 3.3V-5V
5 with fixed bolt holes, easy to install
6.PCB size: 3.2cm * 1.4m
Wiring instructions (3 wire)
1 VCC external 3.3V-5V
2 GND external GND
3 small DO digital output interface (0 and 1)
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