I was wondering if there are any RFID readers for these RFID microchips that are implanted in pets. We have 2 chipped cats and the idea is to attach a reader on either side of the cat flap, which would allow me to check which cat is in or out.
I’ve googled quite a bit but can’t seem to find any technical info on the microchips and what RFID standard they use. There seem to be a few different readers for different frequencies (125kHz, 13.56MHz, …). I’ve not done any project with RFID before and I’m not sure which reader to choose.