Looks like if you’re a member of the ARRL you can order this kit, I’ll see what I can dig up… – “The ARRL Amateur Radio Education and Technology Program has cooked up a packaged project that detects and decodes the infrared messages from a TV remote. You probably have a number of them around the house. In fact, remote controls have become so important that when they are misplaced there is a sense of panic.” – Link.
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As I updated on the Flickr page:
This display is one that was used on checkouts in the late 90s but has been superceded – it cost me £5. It uses a single lead for data and power, so I spliced together a new lead from the old one, an old null modem lead and some wire I had lying around the house. It’s currently powered by an Olivetti laptop PSU from about 1997 (more junk lying around the house) but, seeing as it has such a wide input voltage range (11-48V) it will soon be hanging off a Molex connector.
What people forget is that most tills these days, bar the cheapest entry-level stuff, are PC based – so familiar PC protocols are used. This display takes serial data, currently 38400bps, 8-N-1, no flow control. With some advice from my LUG, I can pipe output straight into it.
Eventually, this is going to be the display on my Linux-powered alarm clock =)