Has anybody on here had an experiment with the supermarket tags?
My understanding is that you get a bunch of the tags, somehow get a base-station/transceiver working with them, and push data as images.
I'd love to hear from anyone who's had a go. I quite fancy having some little displays around the house with useful info for the room.
It's also quite common for updates to be sent using a ceiling-mounted infrared transmitter, like this brand which is common where I am:
https://www.pricer.com/products/devices/electronic-shelf-labels
People have figured out the data formatting to update some of the lower-security variants (including that "Pricer" brand):
http://furrtek.free.fr/index.php?a=esl