Solar Watering System Using Microcontroller

Segar, Amardas (2016) Solar Watering System Using Microcontroller. Project Report. UTeM, Melaka, Malaysia. (Submitted)

Text (24 Pages) Solar Watering System Using Microcontroller.pdf - Submitted Version Download (872kB)

Abstract

The main purpose of this project is to develop a Solar Watering System capable of performing irrigation or watering task automatically and is powered by Photovoltaic (PV) panels. A moisture sensor in the soil is used to check the need for irrigation in order to operate a pump powered by the PV system and lead acid battery. In addition to the input from moisture sensor, Timer function within the PIC18F4550 was also applied to prevent watering to many times per day. This ensures that the crop or plant in the field will not have growth problems due to overwatering. In order to increase energy harvesting from the sun radiation, sun tracker in the form of single axis was designed. Horizontal Single Axis Tracker (HSAT) was build based on the feedback from two Light Dependent Resistor (LDR) and an opaque sheet dividing them so that shadow will be casted on either one of them when the sun moves. The objective of project is to develop a program by using microcontroller as to carry out the function of maintaining proper balance of moisture in the soil and also to construct solar powered automatic irrigation system that runs with the use of moisture sensor, microcontroller and other required circuitry.

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