AnsweredAssumed Answered

RC522 RFID reader and arduino

Question asked by Jarmil Jiricek on Jan 19, 2018
Latest reply on Jan 24, 2018 by IvanRuiz

Hello
the query is for the RC522 RFID reader. Are its inputs tolerant to the 5V arduino output if the 3.3V reader power supply is maintained? Or is it necessary to use the signal converter?

Outcomes