RFID tags are all over the place. They're used in building access control systems, passports, inventory tracking . . . This instructable will show how you can use an Arduino and a few simple components (wire coil, transistor, capacitor, resistor) to make a device that can spoof an 125 KHz (low frequency) RFID tag. This is version 1, so there are many enhancements that can be made, but this ver
![Stupid Simple Arduino LF RFID Tag Spoofer](https://cdn-ak-scissors.b.st-hatena.com/image/square/78ad8b33ce65eec111c683281244a999a6e55c3c/height=288;version=1;width=512/https%3A%2F%2Fcontent.instructables.com%2FFNX%2F2TXM%2FG7DYQE17%2FFNX2TXMG7DYQE17.jpg%3Fauto%3Dwebp%26frame%3D1%26width%3D2100)