So... when can I get my Daily Prophet? I'm expecting pictures of politicians making faces and such ;p This is truly impressive. I wonder if the lines are bad pixels or just meant to be there for testing.
When my university put RFID tags on all of our ID cards, I fantasized about setting up enough scanners to create a marauder's map.
All you would really need is a simple web server and a shit ton of RFID readers set up all over the place. Completely impractical, but plausible. Now that we've got e-paper, we've got the final piece.
Not quite the 200 meters that 'someone_here' posted, but the quoted max range of 450 feet is more than usual (I also don't have any idea how well it works).
That seems like it could work! It also has different antenna options for different uses which would also work for what I had in mind! ( I have 2 projects in mind, 1 is for short range 2-10ft, the other is long range 50ft or so )
EDIT: Yikes! Just saw the prices for the tags, at $25-50/tag its too expensive :( I dont mind if the reader is expensive but the tags must be cheap less than $1 would be ideal
For that range it's probably using active tags, which is why they cost so much. On the other hand passive readers often cost a few thousand dollars and have tiny ranges so I think that active systems end up being cheaper in many deployments.
I'm working on an active tag system for my phd actually, and our readers only cost as much as our tags and have the same range but they still cost somewhere in the $30-$50 range depending upon how many we make at a time. In a few years we'll probably have the cost down to a dollar or so in mass production but your projects will need to wait a while.
