Hi.
I am planning to build a raspberry pi controlled cat door. I want to allow the entrance/leaving of a cat based on it's proximity. I figured out that the way to go was RFID. However, since a cat can't be taught to go near the RFID reader to unlock the door, and since all RFID readers I have found have a very small range (up to 3cm) this doesn't work.
I was hoping that some of you knew any option to either extend the range of a MIFARE RC522 or any other similar option with a higher range even if a little bit pricier.
Thanks
I am planning to build a raspberry pi controlled cat door. I want to allow the entrance/leaving of a cat based on it's proximity. I figured out that the way to go was RFID. However, since a cat can't be taught to go near the RFID reader to unlock the door, and since all RFID readers I have found have a very small range (up to 3cm) this doesn't work.
I was hoping that some of you knew any option to either extend the range of a MIFARE RC522 or any other similar option with a higher range even if a little bit pricier.
Thanks