|
| 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. |
| PCB size: 3cm * 1.6cm. |
| Power indicator (red) and digital switching output indicator (green). |
| Comparator LM393 chip, stable. |
|
|
Interface Description (4-wire):
| VCC: .3 V-5V. |
| GND: GND. |
| DO: digital output interface (0 and 1). |
| AO: Analog Output Interface. |
|
|
Instructions for use:
| Soil moisture module is most sensitive to the ambient humidity is generally used to detect the moisture content of the soil. |
| 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. |
| The digital output D0 can be connected directly with the microcontroller to detect high and low by the microcontroller to detect soil moisture. |
| The digital outputs DO shop relay module can directly drive the buzzer module, which can form a soil moisture alarm equipment. |
| Analog output AO and AD module connected through the AD converter, you can get more precise values of soil moisture. |
|
