Week 5 : FYP2 Soil Moisture Sensor

The soil moisture sensor consists of two probes that ar wont to measure the volumetrically content of water within the soil. The two probes enable this to go through the soil and so it gets the resistance worth to measure the moisture worth. This device are often connected in two modes; Analog mode and digital mode. 

Features of soil moisture:

•      Operating Volt : DC 3.3V-5V

•      Current: 35mA

•      Consist LED indicator : RED for power, GREEN for digital output

The soil moisture sensor pin details:

•      VCC: Power Supply

•      A0: Analog port

•      D0: Digital port

•      GND: Ground base

The module additionally contains a potentiometer which can set the brink worth. Threshold is a benchmark of the value whether it has maximum or minimum value. Mostly, to connect with Arduino, they will use analog pin to define the output value and the sensor will gives the value from 0-1000.