Teensy 4.1 Triple CAN-Bus Board with Ethernet

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This board combines a Teensy 4.1 microcontroller with advanced networking and automotive communication features, making it ideal for prototyping, development, and deployment in industrial and automotive applications. It integrates triple CAN-bus connectivity (two CAN 2.0B and one CAN FD) along with an Ethernet port, offering robust options for both in-vehicle networking and IoT/cloud communication.

Designed for flexibility and durability, the system can be powered from a wide voltage range and includes built-in reverse voltage protection, ensuring reliable operation even in demanding environments.

Key Features

• Teensy 4.1 (pre-installed)
  High-performance ARM Cortex-M7 microcontroller running at 600 MHz, providing ample processing power for real-time applications.

• Triple CAN Interface

  • 2 × CAN 2.0B (Classical CAN)

  • 1 × CAN FD (Flexible Data Rate)
    Each bus is equipped with 120 Ω termination resistors for stable signal integrity.

• Power Supply

  • Wide input voltage range: 7 V to 24 V DC

  • On-board SMPS regulator for efficient power conversion

  • Integrated reverse polarity protection

• Networking & Expansion

• Ethernet MagJack connector for direct Ethernet connectivity

• I²C header for attaching external sensors, modules, or small displays

Easy Programming with Arduino IDE

One of the major benefits of this platform is its seamless integration with the Arduino IDE, making it accessible to both beginners and experienced developers. The Teensy 4.1 is supported through the Teensyduino add-on, which provides a wide range of libraries for CAN, Ethernet, and sensor interfacing. This allows you to rapidly prototype and test applications without the steep learning curve of low-level embedded development. At the same time, the platform retains the flexibility to dive into advanced C/C++ programming when needed, ensuring that projects can scale from simple proofs of concept to complex, production-ready systems.

Applications

• Automotive and heavy-duty vehicle networking (J1939, OBD-II, CANopen, NMEA 2000)

• Industrial automation and machine control

• IoT and cloud-connected gateways using Ethernet or CAN

• Prototyping advanced CAN-FD applications

• Sensor integration and monitoring

Download the PDF: Teensy Software Installation & Downloading Programs (Sketches)...

TEENSY Resources

• TEENSY 4.1 Development Board - Specifications, Software, Communication, and more...
• TEENSY Loader to download code...
• Teensyduino, add-on for Arduino IDE...

Documents

• Schematic...
• Triple CAN and Ethernet demo sletch...

Arduino Cookbook

Want to create devices that interact with the physical world? This cookbook is perfect for anyone who wants to experiment with the popular Arduino microcontroller and programming environment. You will find more than 200 tips and techniques for building a variety of objects and prototypes such as toys, detectors, robots, and interactive clothing that can sense and respond to touch, sound, position, heat, and light.

You don't need experience with Arduino or programming to get started. Updated for the Arduino 1.0 release, the recipes in this second edition include practical examples and guidance to help you begin, expand, and enhance your projects right away, whether you are an artist, designer, hobbyist, student, or engineer.

• Get up to speed on the Arduino board and essential software concepts quickly
• Learn basic techniques for reading digital and analog signals
• Use Arduino with a variety of popular input devices and sensors
• Drive visual displays, generate sound, and control several types of motors
• Interact with devices that use remote controls, including TVs and appliances
• Learn techniques for handling time delays and time measurement
• Apply advanced coding and memory handling techniques

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