Rfid - Overview
125kHz RFID tag reader board
The 125kHz RFID Reader is a device that enables wireless identification of objects using radio-frequency identification (RFID) technology. It is ideal for applications in access control systems, time and attendance tracking, inventory management, and similar uses. This reader uses I2C communication for easy connection to microcontrollers, simplifying integration into various projects. It comes with an antenna and two QWIIC connectors for easy connection. It's important to use RFID cards/tags with a frequency of 125 kHz, which are compatible with this reader.
125kHz RFID tag reader board
Which products is this documentation for?
125kHz RFID tag reader board (UART)
333154
125kHz RFID tag reader board (I2C)
333273
Key Features
- Frequency: 125 kHz
- Reading distance: up to 5 cm
- Communication: I2C,UART (depends on device version)
- Operating voltage: 3v3 for Qwiic, 5V for header pins
- Supported tags: EM4100, EM4001, or compatible 125 kHz RFID cards/tags
- Dimensions: 38 x 38 mm (1.5 x 1.5 inch)
- Connector: 2 × Qwiic (plug-and-play, no soldering required)(Qwiic version) , external 125kHz antenna connector , TX/RX (UART) or SDA/SCL (Qwiic) for communication.
- Antenna: Built-in
- Power consumption: Active mode: < 50mA
You may also need
Qwiic cable
Qwiic (formerly easyC) compatible cables with connectors on both ends, available in various lengths.