Hi Mark,
That’s really interesting, I’d love to know more details if possible! I’m currently working on using the LimeSDR as a UHF RFID reader, using GNU Radio, using this library, SoapyUHD source and sink gnuradio blocks, through SoapySDR and SoapyLMS7. I’ve got around an 80% read rate (in conditions where the read rate should really be 100%), which I think is primarily due to too much round trip latency - after the tag first replies, the reader sometimes takes too long to understand the tag response and respond, which results in the tag timing out.
It looks like your approach is a bit different to mine though. I’ve not quite understood what’s going on; is the demodulation happening on the arduino or on a PC? Would you mind going into a bit more detail about your setup, in terms of from where to where the data goes and where it gets processed?
Thanks and regards,
DasSidG