> Standard UART communication isn't very well suited
> for IR comm at all. The possibility of a long sequence
> of "0" or "1" without any level shift can mess up things
> more or less depending on what type of receiver used.
>
> Better to use "pulses" of different length to represent
> "start", "one", "zero" and maybe "stop" bits. A kind
> of PWM.

for inspiration: take a look at the various IR protocols (RC5, sharp,
IRDA etc). Most use either the pulse length the or pause-length to
encode a combined data/clock.

Wouter van Ooijen

-- -------------------------------------------
Van Ooijen Technische Informatica: www.voti.nl
consultancy, development, PICmicro products

--
http://www.piclist.com hint: PICList Posts must start with ONE topic:
[PIC]:,[SX]:,[AVR]: ->uP ONLY! [EE]:,[OT]: ->Other [BUY]:,[AD]: ->Ads