Arduino

Download:http://pan.baidu.com/s/1i3j4Ze1

Purpose:
The amount of soil humidity control is adjusted through the potentiometer. It can automatically water the vegetable garden, the garden automatic watering, the control of the soil humidity of the family flower pot, various electronic competitions, electronic building blocks, Arduin design, etc.
product description:
1. Use the high -quality soil sensor produced by the company to detect soil humidity. The surface is treated with nickel plating. It has a wide sensing area, which can improve conductive performance, prevent the problem of rusting soil, and extend the service life;
2. The product can control the humidity of the soil wide range. The corresponding threshold is controlled by the potentiometer. When the humidity is lower than the set value, the DO output is high.
3. The comparator uses a LM393 chip to work stable
4. Work voltage 3.3V-5V
5. There is a fixed bolt hole for easy installation
6.PCB size: 3.2cm * 1.4m
Wiring description (3 line system)
1 VCC 3.3V-5V external connection
2 GND External GND
3 DO  Small board digital output interface (0 and 1)
Module use instructions:
1. The sensor is suitable for the humidity detection of the soil;
2. The blue potentiometer in the module is used to adjust the scalar value of the soil humidity. The clockwise regulation is clockwise.
3. Digital output D0 can be directly connected to the single -chip microcomputer to detect the high and low levels by single -chip microcomputer, so as to detect soil humidity;
Shipping list:
A set of modules and soil sensors, 20cm long DuPont line 2