I've been looking around for information about implementing RFID identification/sensor information. I've had a hard time finding good information on how RFID information is used in model railroads. I'm assuming the information is out there, and I'm surprised it's not easier to find. It would seem with the cheap Arduino and other online supplies someone would have come up with a DCC++ like version of an RFID sensor system. It seems like it would be an easy thing to setup, but my imagination exceeds my technical expertise. I guess I'm looking for some help brain storming the issue. I would split it into a few issues. Hardware, data collection/management, and finally how do I get JMRI to do what I want with the data. (i.e. what info do I want, and what the heck will I do with it). Hardware: I know there is commercially available RFID modules. I know CTI makes one, but I personally cannot get my CTI hardware to JMRI (seems to be an issue with other people too). I also know you can make an RFID reader with an Arduino. I'm assuming that you could attach multiple readers to one Arduino. I'm not real well versed in what type of RFID reader would work well for model railroads. There are different types, frequencies, etc.) Other thoughts on hardware? Data: Let's say you are able to build an RFID reader that can read tags at different places on a layout. What would you want to do with that data? Operations, block detection, tracking how long your loco has run between servicing? How do you get the RFID information back to JMRI? I really have no idea of the best way to do this, but it would seem that some type of sensor in JMRI would work??? I have a NCE AIU board in my system that works with block detectors and reed switches. Could I somehow it into that system or use the Arduino directly? It would seem to me that if I can get RFID card X to be read than I could get the Arduino to write a pin high, and report that data back to JMRI directly or through some other sensor method. JMRI processing: Let's say you've made the hardware, collected the data, and reported it back to JMRI...what's the method to get JMRI to do what I want. If I can track an individual train I would personally like to have an icon of that train move around my layout on my computer. I have NO IDEA if that can even be done, but it seems like something that could happen. I'd also like to use RFID to do some type of automation, but so far I've had little luck doing this in JMRI. I know the program is capable, but so far I haven't been. Here's some links to RFID that I've found, but I can't find any good info on tying it into JMRI. http://www.pcrnmra.org/pcr/clinics/RFID-in-Model-Railroading-20130123.pdf (I'm guessing it's in German) Thoughts, ideas, anyone working on something like this already?