Re: Extracting the infrared code of a remote control

From: Si Ballenger (shb*NO*SPAM*_at_comporium.net)
Date: 06/29/04 

Date: Tue, 29 Jun 2004 04:25:59 GMT

On Tue, 29 Jun 2004 02:04:31 GMT, Infrared
<infrared@spamhole.com> wrote:

>** This email address will self destruct in 72 hours. **
>
>The users of some digital cameras with infrared remote shutter release
>ability have discovered codes for universal television remote controls
>which will work on their cameras.
>
>I own a Nikon D70 and the ML-L3 infrared remote for this camera is
>scarcer than hen's teeth.
>
>Question #1: Is the procedure to read an IR pulse to attach
>oscilloscope probes to an IR receiver (such as from a used VCR) and then
>scope its terminals?
>[If I owned this remote, I would try this and share the result.]
>
>Question #2: Is there any way beyond brute force trial and error to
>cross-reference the result of said experiment to the brand and function
>of an appliance? (Such as IR pulse XYZ = Zenith, "Channel Up")
>
>Question #3: If the pulse information were provided to me, how much
>knowledge and overhead is required to create an IR emitter for this
>purpose? How about to make an intervalometer out of it, whereas it
>would trigger once every 3 minutes, for example? (time lapse
>photography, which the stock item does not do)

The remotes seem pretty common for $17. The bottom link may give
you an idea how to hack one for connection to a timer or such.

http://www.adorama.com/NKMLL3.html
http://www.bhphotovideo.com/bnh/controller/home?O=NavBar&A=search&Q=&ci=4924
http://www.photo.net/ezshop/product?product_id=220
http://www.geocities.com/zoomkat/irmods.htm

Relevant Pages