Product description
This shield gives the Arduino CAN-Bus capability. It uses the Microchip MCP2515 CAN controller with the MCP2551 CAN transceiver. CAN connection is via a standard 9-way sub-D for use with OBD-II cable. Ideal for automative CAN application. The shield also has a uSD card holder, serial LCD connector and connector for an EM506 GPS module. These features make this shield ideal for data logging application. A demo when connected to a car can be viewed on YouTube.
More information is available on the website of manufacturer Sparkfun.