Teensy 4.0 CAN FD And LIN Bus Breakout Board

This breakout board is a powerful and compact solution designed for CAN FD and LIN Bus development using the high-performance Teensy 4.0 microcontroller (included and pre-installed). It is ideal for engineers and developers working on automotive, industrial, or custom embedded applications where seamless communication between different vehicle domains is required.

In modern vehicles, CAN (Controller Area Network) is typically used for high-speed data exchange between critical systems such as the engine control unit (ECU), transmission, and ABS, while LIN (Local Interconnect Network) is employed for simpler, low-speed tasks such as controlling mirrors, window motors, or interior lighting. This breakout board enables you to bridge those domains, acting as a custom gateway tailored to your application requirements—whether you're prototyping, simulating, or monitoring vehicle networks.

Key Features:

• Teensy 4.0 Microcontroller Installed
  Based on the 600 MHz Arm Cortex-M7 processor, the Teensy 4.0 offers robust performance for real-time communication, data processing, and protocol handling. It is fully compatible with the Arduino IDE and libraries, making firmware development accessible and efficient.

• CAN FD Support
  Equipped with a CAN FD transceiver, this board supports Classical CAN 2.0B and CAN FD (Flexible Data-rate) protocols, enabling higher data throughput and extended payloads (up to 64 bytes). This makes it well-suited for modern vehicle networks that demand faster communication for applications like advanced driver-assistance systems (ADAS) and infotainment.

• LIN Bus Interface
  Integrated Microchip MCP2004A LIN transceiver allows the board to connect to LIN 2.x networks, supporting communication speeds up to 20 kbps. The board can operate as either a LIN Master or Slave—configurable via jumper (JP9)—to meet various integration needs.

• Automotive-Grade Power Handling

  • Onboard 5V voltage regulator with support for +12 VDC input

  • Reverse voltage protection safeguards your hardware in real-world automotive environments

• Bus Termination and ESD Protection

  • Integrated 120 Ohm termination resistor for the CAN Bus (activated via JP1)

  • Electrostatic Discharge (ESD) protection on bus lines for enhanced reliability

This device is particularly suited for use as a domain-specific gateway, allowing developers to connect subsystems that operate on different automotive communication protocols. Whether you are integrating a LIN-controlled actuator with a CAN-based ECU or creating a test environment to analyze network behavior, this board provides a versatile and reliable platform.

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

TEENSY Resources

• TEENSY USB Development Board...
• TEENSY Loader to download code...
• Teensyduino, add-on for Arduino IDE

• Schematic...
• Demo software LIN master controlling NCV7430 RGB LED...
• Microchip MCP2004A LIN J2602 Transceiver (PDF)...
• CAN Bus Demo (Requires FlexCAN Library, which is included in the Arduino IDE when downloading the Teensy examples)...