CAN (Controller Area Network) communication has become ubiquitous in industry. It is used in automotive applications (part of OBD and many other datalinks), on-highway trucks (J1939), industrial machinery and instrumentation, and equipment applications (factory automation). This shield is designed to provide a CAN 2.0 front-end interface for 5V Arduino modules (Uno, Mega, etc).

The module uses SPI to communicate to the Arduino, and requires an aditional chip select pin. An optional interrupt line to the MCP2515 and two LEDS are also provided. The chip select and interupt lines are selected via zero ohm resistors and have several configuration options for flexibility stacking additional shields. A set of stackable headers is included with this board, not installed.

An optional on-board voltage regulator may be used to supply 7.5V to the Arduino's 'Vin' pin (which is regulated to 5V by the Arduino's on-board LDO). The CAN shield regulator supports a wide input range of 9V to 32V. This makes it possible to cleanly build a stand-alone CAN node (remote sensor) without the need for a separate Arduino power supply!

Configurations:

• Power supply populated or depopulated
• Industrial or Automotive pinout on DB9 Connector

Pin	Industrial	Automotive
1	NC	NC
2	CAN Low	GND
3	CAN GND	CAN High
4	NC	NC
5	NC	CAN Low
6	GND	NC
7	CAN High	NC
8	NC	NC
9	V+*	V+*

* power supply V+ if LDO is populated, otherwise, NC

Features

• Arduino shield based on the MCP2515 CAN controller and MCP2551 CAN transciever, CAN 2.0 compatible
• 16 MHz clock for MCP2515 enabling standard CAN bit rates of 100, 125, 250, and 500 kbps
• High speed SPI, up to 10MHz supported
• Optional power supply can regulate voltages from 9V to 32V, covering the vast majority of automotive and industrial applications
• DB9 connector to plug in CAN and optional power input
• PCB with footprint completely contained within Arduino Uno footprint
• 2 user-controlled LEDs onboard, can be used to indicate TX and RX status
• Purchase includes one IFB-10003, populated as ordered, plus a set of stackable headers (uninstalled). DB9 connector comes pre-soldered.
• Designed, manufactured, tested and shipped from the USA