This is a simple water sensor that can be used to detect soil moisture when the water deficit module emits a high level, and the low backwards output.
Use this sensor produced an automatic waterer plant device, so that the plants in your garden, without people to manage.
Blue adjustable sensitivity digital potentiometer adjustment (Figure)
3.3V-5V operating voltage
Dual output module mode, digital output, more accurate analog output.
Description Interface (4 wires)
VCC: 0.3 V-5V
DO: digital output interface (0 and 1)
AO: Analog Output Interface
Instructions for Use:
Moisture module of the soil is more sensitive to environmental humidity
generally used to detect soil moisture content.
Module to reach the threshold value is set the rate of soil moisture, DO port
high output, when the ground humidity exceeds a set threshold value, the
low D0 output module;
The D0 digital output can be connected directly to the microcontroller
to detect high and low from the microcontroller to detect the humidity of the ground;
The digital outputs DO store module rele can directly drive the buzzer
module, which can form a soil moisture alarm device;
AO and AD analog output module connected through the AD converter
can obtain more precise values ??of soil moisture;
Dimension: 5 * 3 * 1cm / 1.97 * 1.18 * 0.39 inch
Material: Metal, Plastic
Package includes: 5pcs soil moisture module
5pcs soil moisture sensor
5pcs 2 Dupont Lines
Only the above package content, other products are not included.
Note: Light shooting and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.