USB and RS232 voltage datalogger

Authors

  • Lorenzo Hernández Tabares

Abstract

The design and construction of a PIC microcontroller based datalogger with USB 2.0 and RS232 interfaces is presented. The datalogger has one 0 to +10VDC analogue input, 10bits ADC, Real Time Clock, 4k sample room on the microcontrollers program flash memory and an external DC power supply. This paper proposes a cheap variant to construct such device widely used in meteorological and environmental instrumentation among others. The prototype was attached to an Ultraviolet Photometric O3 Analyzer for recording the environmental (tropospheric) ozone concentration in a control station at the Havana city.

Key words: datalogger, USB, enviromental ozone

Published

2011-01-07

Issue

Section

Artículos