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Hi all
Just a
quick
update on the 8 Zone ir Transmitter prototype. Well high speed optos
arrived
yesterday
(friday afternoon) got home early from work so
it
was off to the shed . Who said electronics was fun ( i think i did) well it
is
but sometimes frustrating as well ,i couldnt get it to work,downloaded the
data
sheets from the manufacturer ,which to me was different from what RS had in
their catalogue.
Anyway today was a lot
better .
Searched the web and found a schematic which used the opto im
using.
Tried and bingo it worked . Have installed the
opto
and additional components into my prototype and tested with
Homevision .
Have saved ir signals from my tv and dvd eg vol up and vol down . All
appears ok
so the Home Vision signals are now all opto isolated... Next is finish
schematics and send off to Ian B for acrobat conversion and then hopefully
on my
site....
Frank Mc
ps the circuit i looked at was a PC
(rs232)
to RS485 opto isolated FULL DUPLEX CIRCUIT. It even had a picture of the
pcb
.
For more information: http://www.automatedhome.co.uk
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