PiCAN2 Duo CAN-Bus Board for Raspberry Pi

The PiCAN2 Duo board adds dual CAN‑Bus capability to your Raspberry Pi, allowing it to interface with two separate CAN networks simultaneously. Designed around the reliable Microchip MCP2515 CAN controllers and MCP2551 transceivers, this board supports CAN 2.0A/B communication at speeds up to 1 Mb/s on each channel via the high-speed SPI interface. With two independent CAN ports, the PiCAN2 Duo is ideal for building gateways, diagnostics tools, or monitoring applications that need to bridge or analyze traffic across multiple vehicle or industrial networks.

Each CAN channel connects through its own 3‑way screw terminal, simplifying the wiring process for integration into a wide range of applications. The board includes two 120 Ω termination resistors—one for each CAN line—which can be enabled or disabled via jumpers, offering flexibility for different network configurations.

Compliant with the Raspberry Pi HAT standard, the PiCAN2 Duo features four mounting holes for secure attachment and integrates seamlessly into the Raspberry Pi ecosystem. Onboard status LEDs for both channels provide visual confirmation of bus activity, which is particularly useful during development and troubleshooting. An interrupt output on GPIO25 supports responsive CAN message handling through event-based software design.

Software setup is straightforward: enable SPI in Raspberry Pi OS, install the necessary SocketCAN drivers, and both CAN interfaces will appear as can0 and can1. From there, users can begin development using C or Python to read, write, and monitor CAN messages.

The PiCAN2 Duo is a compact, powerful solution for developers and engineers seeking robust dual-CAN functionality on the Raspberry Pi without additional complexity.

Features

• User guide...
• Schematic Rev B...
• Troubleshooting your PiCAN2 CAN Interface Board for Raspberry Pi...
• PiCAN2 Duo CAN Bus Board for Raspberry Pi - Functionality Test...
• PiCAN2 CAN Bus HAT for Raspberry Pi - Getting Access To The 40-pin GPIO Header...

Other Resources:

• What is Debian Jessie?...
• Raspberry Pi Proven To Withstand Extended Temperature Range...
• SAE J1939 ECU Simulator and Data Monitor for Raspberry Pi...
• The Raspberry Pi SPI Interface...
• Monitoring SAE J1939 Data Using The Raspberry Pi Plus PiCAN2 CAN Bus Interface Board...

Cables:

• OBD2 16pin Cable Open End - Use Board Settings for OBD-II
• SAE J1939 9pin Cable Open End - Use Board Settings for Standard CAN

Programming the Raspberry Pi: Getting Started with Python

Learn to create inventive programs and fun games on your powerful Raspberry Pi―with no programming experience required.

This practical book has been revised to fully cover the new Raspberry Pi 2, including upgrades to the Raspbian operating system. Discover how to configure hardware and software, write Python scripts, create user-friendly GUIs, and control external electronics.

DIY projects include a hangman game, RGB LED controller, digital clock, and RasPiRobot complete with an ultrasonic rangefinder.

• Updated for Raspberry Pi 2
• Set up your Raspberry Pi and explore its features 
• Navigate files, folders, and menus 
• Write Python programs using the IDLE editor 
• Use strings, lists, functions, and dictionaries 
• Work with modules, classes, and methods 
• Create user-friendly games using Pygame 
• Build intuitive user interfaces with Tkinter 
• Attach external electronics through the GPIO port 
• Add powerful Web features to your projects

More Information...