Index of /Software/PIC/leddrvr2

 Name                    Last modified      Size  Description
 Parent Directory                             -   
 leddrvr2-2.4.zip        02-May-2002 19:30  482K  
 leddrvr2-board.jpg      30-Apr-2002 17:32  102K  

'leddrvr2' is a simple 7-segment LED display driver system using PIC
technology.  The idea is to use minimum parts count to drive up to 8,
7-segment LEDs using only 3 I/O pins on the PIC chip.

This is also a useful introduction to some of the PIC microprocessor
programming techniques insofar as 'leddrvr2' exercises many of the
basic features of these chips including:

     - Programming & use of the TMR0 timer & prescaler
     - Timer-based interrupt handling
     - Asynchronous application/interrupt interaction.
     - Display multiplexing
     - Serial interfacing to external 'glue' logic.

Also included is a Printed Circuit Board layout for this project in
Eagle format and directions to the board house that made the PCB for
me very inexpensively.

I designed this hardware and wrote the code so *I* could learn the
PICs and in the process actually do something semi-useful.  I've tried
to document the hardware and software sufficiently to make 'leddrvr2'
useful as a learning tool for others.