Ancient led message display with R6502

roosmcd at dds.nl roosmcd at dds.nl
Sun Apr 16 12:40:04 CDT 2006


 Anybody ever seen one of these before?

 http://img148.imageshack.us/img148/1102/041500219xn.jpg
 http://img221.imageshack.us/img221/2051/041500256wc.jpg
 http://img523.imageshack.us/img523/6451/041500242dq.jpg

 This is a LED message display controlled by a R6502-11 microcontroller board.
The keyboard is from a Cosmac ELF, modified to run on power supplied from the uC
board. Connectors are a bit flakey, seems to work but for the input.
Unfortunately it's an ASCII keyboard connection, while I was hoping for it to be
just rs232. Unfortunately this makes it a bit difficult to use for my
application, unless I replace the board with a more modern microcontroller.
Still doubting what to do about that a bit.

  greetings,
   Michiel



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