RFID Receiver and I2C Adapter with USB Interface for WiPy2 & LoPy

  • EM18 RFID Receiver for Pycom WiPy2 & LoPy
  • Compatible with RFID Cards, Tags, Stickers, and Fobs
  • Power & Program your WiPy2/LoPy from USB
  • Provides a I2C Expansion Port for Interface to CE Devices
  • Easily Interface WiPy2/LoPy to Hundreds of Sensors
  • Use WiPy2/LoPy to Control Relays and FETs
  • Interface WiPy2/LoPy to Energy Monitoring Devices
  • RFID Card, Fob, Tag, or Sticker Included for Testing


This RFID Receiver for Pycom WiPy2/LoPy makes it easy to interface RFID cards, fobs, tags, and stickers into your next automation application.

Simply swipe a RFID device across the sensor and read the code into the WiPy2/LoPy at 9600 baud.

The LoPyU includes an integrated I2C port for easy expansion to the entire ControlEverything.com I2C Product Line.

This design includes the popular EM18 RFID receiver, greatly simplifying software development.

This product includes a 6-inch cable for remote mounting of the RFID reader.

Based on availability, we will also include an RFID device for testing (an RFID Card, Fob, Tag, or Sticker).

The I2C port 5V is controlled by a GPIO pin and can be turned on all the time depending on jumper selection. If you are using this with a battery then you can turn on and off the I2C port according to your needs.

I2C connections -- GPIO13(SCL)/GPIO12(SDA)


This device makes use of the UART receive line, and should not be used with overlay shields.

For more information on the WiPy, check out: https://www.pycom.io/


Wiring diagram