If you’ve worked with passive RFID before, you know that most ... 12 AA batteries and a custom PCB using an Arduino Nano to interpret the reader’s output. When the reader sees a nearby card ...

An Arduino Nano controls two ... use an NFC ring is admirable, one of our readers took it a step further a few years ago, and starts his car with a RFID tag implanted in his hand!

So, here are five cool ideas you can bring to life by combining your Arduino microcontroller with a Raspberry Pi SBC. Ever ...