I'm looking to attach multiple RFIDs MFRC522 (https://github.com/miguelbalboa/rfid) to the same Arduino Board. I will use an Arduino Uno and I'm trying to reduce at the maximum the number of pins used. Could I use the same RESET pin for all the boards also?
For example, in this post, the RESET pin is separated https://www.element14.com/community/community/design-challenges/forget-me-not/blog/2014/09/28/cats-forgetmenot--rfid but because I need to have 5 different RFIDs reader, I thought to link all the RESET pins together.
Thank you so much to everyone.