Freematics OBD-II UART Adapter MK2(Discontinued)

SKU:TEL0066 Brand:Freematics
Categories: All Products

This product has been retired from our catalog and is no longer for sale. This page is made available for those looking for specification and documents.

Expected Restock Date: [[restockDate]]


Freematics OBD-II UART Adapter MK2 is the second generation of our popular OBD-II UART Adapter for Arduino. It works as data bridge between a car’s OBD-II port and Arduino with easy-to-use Arduino library provided. Besides OBD-II data access, it also integrates 6-axis MEMS sensor module and voltmeter for measuring vehicle battery power. The adapter draws power from OBD-II port and convert it to 5V (up to 2A) for powering itself and attached device (Arduino board, shield or other components).
The adapter plugs into the OBD port usually located under the steering column or slightly to the left of it. To check if your vehicle is OBD-II certified, open your hood and find the sticker that looks like this:


Note: Vehicles using following vehicle protocols are supported:
CAN 500Kbps/29bit
CAN 250Kbps/29bit
KWP2000 Fast
KWP2000 5Kbps

This version 5V-10W is for cars with both 12V & 24V batteries.



  • Output Power: 5V@2A-10W
  • Weight:94g


Shipping List

  • Freematics OBD-II UART Adapter MK2 x1