Saturday, February 29, 2020

Introduction

Objective

The aim for this experiment is that,  the system should be able to identify whether the soil is dry or wet and accordingly apply the right amount of water to it. This is an open loop system as the output of the system does not depend on the input.

Required Apparatus

The main components required are as follows:
  • Sensor and ADC - Used to measure the humidity level in the soil


Fig. 0.0

  • DC motor - Pumps water to the soil when power is supplied


Fig. 0.1
  • Arduino Board - Controls when the motor should do work


Fig. 0.2

  • Power supply - Used to power the motor and the Arduino

Fig. 0.3

  • LEDs, connecting wires, SK-10 board and a relay - Relay is an electronically operated switch


Fig. 0.4

  • Diode - Used in the connection between the Arduino and the motor in case a reverse current is produced, it would not damage the Arduino


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