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custom 1Pcs For arduino development board soil moisture detection module hygrometer humidity sensor DIY robot smart car

custom 1Pcs For arduino development board soil moisture detection module hygrometer humidity sensor DIY robot smart car

Regular price $0.39 USD
Regular price $2.39 USD Sale price $0.39 USD
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We are a manufacturer of electronic components, electronic modules for a large number of products.We are the factory!With more than 10 years of PCB development experience, the product quality is good, the price is excellent.A large number of wholesale sales of global buyers, welcome to purchase.


A description of the
 What is a simple water sensor can be used to detect soil moisture when the module generates soil moisture deficit a high level, and vice versa low output. Use this sensor produced an automatic plant watering device, so that the plants in your garden without the people to manage.
2 adjustable sensitivity adjustment of the digital blue potentiometer (Figure)
Operating voltage 4 3.3V-5 v-
Module dual output mode, the digital output is simple, more accurate analog output.
A fixed through hole for easy installation
7 small boards, PCB size: 3 cm * 1.6 cm
8 power indicator (red) and digital switching output indicator (green)
9 LM393 comparator chip, stable

Two small interface board description (4-wire)
1 external VDC 3.3 v-5 v
2 External GND GND
3 MAKE small digital output interface board (0 and 1)
4 AO small analog output interface cards

 

Three instructions for use

Soil moisture module is more sensitive to ambient humidity is generally used to detect soil moisture content.

2 module in the soil moisture less than a threshold value set when the DO port high output, when the when the soil moisture exceeds the threshold value is set, the module D0 low output;

D0 3 small digital output boards can be connected directly with the microcontroller, microcontroller to detect high and low, and so to detect soil moisture;

4 small digital output boards of the store relay module can directly trigger the buzzer module, and which can form a ground moisture alarm equipment;

5 small analog outputs sa and AD modules connected through the AD converter, you can get more precise values of soil moisture;

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