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• Purpose: By adjusting the soil humidity management threshold in the course of the potentiometer, you could possibly automatically control the vegetable garden, garden automatic watering, soil humidity of relatives flower pots, varied digital competitions, digital constructing blocks, arduino design, and so on Product introduction: 1 The nice soil sensor produced by way of our company is used to discover the soil moisture The surface is handled with nickel plating and has a wider sensing area, which can improve the conductivity, stop the problem of straightforward rusting in touch with the soil, and expand the provider life; 2 The product can management the soil humidity in a wide range, and regulate and management the corresponding threshold throughout the potentiometer When the humidity is lower than the set value, DO outputs a excessive level, and when the humidity is larger than the set value, DO outputs a low level; 3 The comparator uses LM393 chip, which fits stably 4 Working voltage 3 5 Fixed bolt holes are provided for simple installation 6 PCB size: 3 * 1 Wiring instructions (3-wire system) 1 VCC external 3 2 GND exterior GND 3 DO small board digital output interface (0 and 1) Module instructions: 1 The sensor is suitable for soil moisture detection; 2 The blue potentiometer within the module is used to adjust the edge value of soil moisture When it is adjusted clockwise, the controlled humidity could be greater and decrease when it's counterclockwise; 3 The electronic output D0 can be straight related to the only chip microcomputer to detect the excessive and low levels, thereby detecting the soil moisture;

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