Consumer electronics aimed at young children tend to be quite janky and cheap-looking, and they often have to be to survive the extreme stress-testing normal use in this situation. You could buy a … ...

– MFRC522 connection header: This is where the MFRC522 RFID reader connects to the main board. – Program select header: Currently, only header#1 is being used in the program.

To that end, [Dale] rolled his own RFID reader pretty much from scratch. He used an Arduino to generate the 134.2-kHz clock signal for the FDX-B chips and to parse the returned data.

MIT researchers invent counterfeit detection tag, Clustag Demonstrates its RFID MOT Station for Warehouses, Silicon labs and Arduino Collaborate for Matter over Thread MIT Researchers Invent ...