This is a simple humidity sensor, which can be used to measure the humidity in the ground. This makes it possible for the Arduino to give a notification if the plant needs water. This module has both the possibility of digital and analog output, whereby the digital output threshold can be set by means of a potentiometer.The module also ordered 2 indication LEDs, Power (red), Digital output high (green).
Interface (4-pin):- VCC: .3V - 5V
- GND: GND
- DO: digital output (0 or 1)
- AO: Analog output
Contains:- Sensor module
- Probe
- 2-core cable