fishxz
Posts: 71
Joined: Thu Feb 14, 2013 7:38 pm

ir gpio need help

Mon Dec 30, 2013 10:54 pm

hey,
i want to connect my old serial ir receiver to my rpi, now im asking me if this possible, if yes how i need to connect it? i have no datasheet.

here is a screenshot of the cable:
https://www.dropbox.com/s/ctemh6y3b31mm ... 234917.jpg

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joan
Posts: 15038
Joined: Thu Jul 05, 2012 5:09 pm
Location: UK

Re: ir gpio need help

Mon Dec 30, 2013 10:59 pm

If that was used on a PC it probably operates at +/- 12V and would be incompatible with the Pi's 3.3V logic levels.

You could probably use the IR receiver itself if it was de-soldered. Do you know the IR receiver model?

You may be able to connect it directly to a gpio.

fishxz
Posts: 71
Joined: Thu Feb 14, 2013 7:38 pm

Re: ir gpio need help

Mon Dec 30, 2013 11:03 pm

i only want to use the ir receiver, but i dont know the model of the receiver :(

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joan
Posts: 15038
Joined: Thu Jul 05, 2012 5:09 pm
Location: UK

Re: ir gpio need help

Mon Dec 30, 2013 11:08 pm

fishxz wrote:i only want to use the ir receiver, but i dont know the model of the receiver :(
I meant the IR chip itself. I sort of made the assumption that you built that yourself as per http://www.lirc.org/receivers.html and http://www.lirc.org/pictures1.html

fishxz
Posts: 71
Joined: Thu Feb 14, 2013 7:38 pm

Re: ir gpio need help

Mon Dec 30, 2013 11:16 pm

oh... no. i didnt built it myself.

fishxz
Posts: 71
Joined: Thu Feb 14, 2013 7:38 pm

Re: ir gpio need help

Mon Dec 30, 2013 11:33 pm

its looks for me like an TSOP1737???

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exartemarte
Posts: 376
Joined: Sat Mar 03, 2012 3:51 pm
Location: Middle England
Contact: Website

Re: ir gpio need help

Tue Dec 31, 2013 12:40 am

If it was used with a PC serial port you could try a USB/serial converter like this. They are very cheap on eBay. I have a couple of them, and although I haven't tried them on a Pi I have used them successfully with Debian Linux on PC and laptops - didn't even have to install a driver.

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