Introduction: CAN-BUS is a common industrial bus because of its long travel distance, medium communication speed and high reliability.It is commonly found on modern machine tools and as an automotive diagnostic bus.This CAN-BUS Shield adopts MCP2515 CAN Bus controller with SPIinterface and MCP2551 CAN transceiver to give your FOR /FOR Seeeduino CAN-BUS capibility.With an OBD-II converter cable added on and the OBD-II library , you are ready to build an onboard diagnostic device or data logger.Features: Implements CAN V2.0B at up to 1 Mb/sSPI Interface up to 10 MHzAriduino/ Freaduino Completely compatibleStandard (11 bit) and extended (29 bit) data and remote framesIndustrial standard 9 pin sub-D connectorTwo receive buffers with prioritized message storageOperating voltage: DC5-12VMaterial: Plasticcolour: blackPackage Contents: 1 x Expansion Board5 x rows of pinsOnly the above package content, other products are not included.Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.