hello guys I am working on a storage system using ramps 1.4 so far everything going well
but now I want to add
RFID to the project
since RFID RC522 require
SCK, MISO, and MOSI and they are already there in ramps 1.4
but now my problem is
3.3v output, SDA, and the RST I don't know where should I put them, and especially for the 3.3 v is there any way to connect it without any circuit adjusting
