PIC Reaction Timer by Paul Hackett
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Everyday Practical Electronics  June 1998

This PIC 16C55-powered project drives a 4-digit
7-segment l.e.d. readout and displays your reaction time
(the period it takes for the user to press a push-switch
after a signal is generated). Resolution is 0.1 milliseconds,
and if the switch is not pressed in 999.9ms a 'HELP' message
is displayed!

The circuit is easy to build, on a stripboard layout. Full
details are included in the article.

The latest version of this software is available from

ftp://ftp.epemag.wimborne.co.uk/pub/PICS/Reaction.Timer

Information on Back Issue availability is available from the EPE
web site http://www.epemag.wimborne.co.uk

Last updated 30th April 1998