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