But his final iteration was to make a standalone reader with an Arduino and ... you can see the earlier non-Arduino versions of the code, as well. If you want to understand all the logic that ...

By connecting multiple MFRC522 RFID readers to an Arduino Uno ... can lower the lotion down to them. Her code allows you to configure the type and number of RFID cards required to trigger ...

A ‘sprintf’ instruction would apparently have the flexibility do away for the need to pre-blank the number’s landing spot. (BTW, sprintf does not work for floating point numbers in Arduino) The code ...