Low-cost low-power data acquisition system

Abstract

Data loggers are used for data acquisition and storage. This project was undertaken with the objective of constructing a low-power low-cost battery operated data acquisition system (data logger) for use in remote areas. It is a dedicated system for measuring temperatures using thermistors as temperature sensors. The system was constructed using KIM-l microcomputer as an evaluation system. It uses an 8-bit Analog-to-Digital Converter, ADC 0816 which can take up to 16 channel in-puts. By the nature of the resolution of the ADC 0816 the system can read -temperatures to an accuracy of 0.05 c