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RE: ir transmitter some success


  • To: <ukha_d@xxxxxxx>
  • Subject: RE: ir transmitter some success
  • From: "Des Gibbons" <des@xxxxxxx>
  • Date: Sun, 2 Jun 2002 15:54:03 +1200
  • Mailing-list: list ukha_d@xxxxxxx; contact ukha_d-owner@xxxxxxx
  • Reply-to: ukha_d@xxxxxxx

Hi Frank,


I'm guessing here, but I assume linking these designs to a PC rather than HV
is a trivial matter?

Cheers, Des.

-----Original Message-----
From: Frank Mc Alinden [mailto:armagh@xxxxxxx]
Sent: 02 June 2002 15:36
To: ukha_d@xxxxxxx Subject: [ukha_d] ir transmitter some success


Hi Andy , Ian + Ian
                            Had some success today with the 8 zone ir
controller . I decided to bypass the opto connected to incoming ir signal
>from two ir leds inserted in the Zone Splitter . Looked at my schematic and
realised it was slightly different to my homebrew circuit. In my homebrew
unit the driver transistors were connected  common emitter but my new
circuit was common collector .Re did the driver transistors and tried again.
Now works with all 8 ir leds in Zone Splitter on all Zones . The range is
approx 15ft and i monitored the current which was approx  5mA . I set up my
Hv ports thru the control menu rather than a macro at this stage just to
confirm my hardware was connected ok. Would still like to use opto isolation
on the incoming ir ,will order something from rs components. Now must update
my drawing before i forget.

Frank Mc


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