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Author Topic: simple serial ir receiver build guide - add indication light?  (Read 3394 times)

trials_modder

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what would be the easiest way to add a 3 mm red led that turns on when ir is detected using this guide: http://www.linuxjournal.com/article/8811 ? i know i don't want to use another transistor if possible (because space is tight), so I was thinking perhaps the led and some unknown resistor value (100 ohms sound good?) in parallel with the data pin and serial pin 1
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Re: simple serial ir receiver build guide - add indication light?
« Reply #1 on: June 25, 2007, 06:42:58 AM »

Not sure about LIRC, but WinLIRC has a systray icon that "lights up" on activity.  That's what I use to see if the receiver is picking up my remote.  I'm gonna have to check the article I used to create the same circuit if that had an additional indicator LED.
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trials_modder

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Re: simple serial ir receiver build guide - add indication light?
« Reply #2 on: June 26, 2007, 03:35:21 AM »

well i have home theatre software that fullscreens the desktop, so i wouldnt be seeing any indicator from winlirc. i'd really like to have it hardware side too
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Re: simple serial ir receiver build guide - add indication light?
« Reply #3 on: June 27, 2007, 03:17:52 AM »

Here's the suggested circuitry for it:

So I was hoping to insert the LED perhaps between the R1 junction and GND
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Re: simple serial ir receiver build guide - add indication light?
« Reply #4 on: June 27, 2007, 09:23:12 AM »

picking my head here, i think i remember seeing snow_veil having an IR circuit with the indicator LED.  That was way way back.  Hopefully he would still have the circuit, or at least the schem.
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