Description
Description: - This is a simple water sensor can be used to detect soil moisture when the soil moisture deficit module outputs a high level, and vice versa output low. - Use this sensor produced an automatic plant waterer device, so that the plants in your garden without people to manage. - Sensitivity adjustable the blue digital potentiometer adjustment (Figure)
- Operating voltage 3.3V-5V - Module dual output mode, digital output, analog output more accurate. - With fixed bolt hole for easy installation - Power indicator (red) and digital switching output indicator (green)
Specification: - Comparator LM393 chip, stable - PCB size: Approx. 3cm * 1.6cm/ 1.18x 0.63inchInterface Description (4-wire) - VCC: 3.3 V-5V - GND: GND - DO: digital output interface (0 and 1) - AO: Analog Output Interface - Instructions for use: - 1. Soil moisture module is most sensitive to the ambient humidity is generally used to detect the moisture content of the soil. - 2. Module to reach the threshold value is set in the soil moisture, DO port output high, when the the soil humidity exceeds a set threshold value, the module D0 output low; - 3. The digital output D0 can be connected directly with the microcontroller to detect high and low by the microcontroller to detect soil moisture; - 4. The digital outputs DO shop relay module can directly drive the buzzer module, which can form a soil moisture alarm equipment; - 5. Analog output AO and AD module connected through the AD converter, you can get more precise values of soil moisture;
Package Includes:1 Piece Soil moisture module1 Piece Soil moisture sensor5 Pieces Lines
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