Pls. Help: DIY IR Blaster

[ardo]

Hi there,

I'm building a PVR, and have come across a problem of switching channels on my FTA receiver. I'd like to use BeyondTV software, which claims to be compatible with Girder as far as IR emitters are concerned. However, I don't feel like spending $$ on an IR receiver/xmitter, since I already have an IR receiver that came with my PVR card.

If I build a simple IR transmitter ( an IR LED in series with a resistor and a diode, connected to DTR & GND of the serial port ), is there a Girder plugin that will handle a simple device like that? I've asked this on Girder forum, but got no replies.

To see the actual schematics, pls. have a look here:
http://www.lirc.org/images/simple_transmitter.gif

The description is here:
http://www.lirc.org/transmitters.html

TIA.