This guide will teach you how to connect and use the RobotGeek RFIDuino Shield to read 125 KHz EM4102 RFID tags. It will also give you an overview of using the onboard LEDs and buzzer, XBee wireless modules, and external Input/Output with the RFIDuino shield.
RFID stands for Radio Frequency IDentification. The RFID system consists of two components, an RFID reader and an RFID tag. The reader interacts wirelessly with a tag to retrieve a unique identification number. The system can be used for many things from opening doors to tracking inventory.
The RFIDuino Shield for Arduino adds RFID capabilities to your Geekduino/Arduino. The shield fits on top of your arduino, making solid connections to the RFIDuino's circuitry. The built in buzzer and LEDs allow you to get stared right away by making visual and audio cues depending on the data that is on a given tag. The shield also allows you to add components to expand your system. You can use this to make your own door locks, inventory systems and more!
This guide will refer to the RobotGeek Geekduino, the Arduino Compatible microcontroller recommended for use with RobotGeek products. However this kit will also work with the Arduino Uno, or other Arduino variants like the Seeeduino.
This guide is designed for the RFIDUino v1.2. However this hardware guide and RFIDuino Library are still compatible with the v1.1 hardware. More information on hardware differences can be found here.