Pengembangan Alat Ukur Kadar Air Tanah Berbasis Mikrokontroler Avr

Abstract

The measure of soil moisture content has not become a custom in performing agricultural practices. The general obstacle facing constrain is the availability of soil moisture content gauge. In order to deal such a problem, there should be developed an instrumental which may be monitoring the soil moisture content change every time. Through using the instrument and electronic technology it is possible for us to design an istrument that can measure the moisture soil content. By using a detector cable as a sensor and AVR microcontroller for sensor signal reading we may be able to obtain moisture soil content measure digitally on the liquid Cristal Display screen. The objective of this research is to produce an instrument that can read an moisture soil content change digitally. The methods used are system design, Hardware design, Software design, Instrument function test, Data collection ADC (Analog to Digital Conversion), Linearization process, and Instrument performance test. The results indicate a sufficiently small gauge reading error.