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Latest message you have seen: RE: [Project] Example idea detail


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RE: Homevision - one more time...


  • To: <ukha_d@xxxxxxx>
  • Subject: RE: Homevision - one more time...
  • From: "James Hoye" <james.hoye@xxxxxxx>
  • Date: Fri, 11 May 2001 08:59:01 +0100
  • Delivered-to: rich@xxxxxxx
  • Delivered-to: mailing list ukha_d@xxxxxxx
  • Mailing-list: list ukha_d@xxxxxxx; contact ukha_d-owner@xxxxxxx
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> Not exactly. Since the repeaters work with demodulated data you need a
> demodulator. This is a 5 volt device costing ?1.50 from Keith (Kat5)
and
> called a TSOP1838. This is then connected to the Tx board which sends
IR
> based on the signal from the receiver via a bus. Three connecting
> wires are
> needed if tranferring power as well (2 power, 1 signal). The
> TSOP's are tiny
> and very sensitive so a low power LED from HV in front of it would do
> nicely.

I was thinking that you could pump the HV IR output straight into a
transistor (via suitable resistor) to drive a larger current (ie. several
LEDs).

James H




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