CAN FD SHIELD FOR ARDUINO · ARDUINO CAN FD EXPANSION SHIELD
Add CAN FD to your Arduino workflow.
Build CAN FD and Classical CAN prototypes with an MCP2517FD controller, CAN FD-capable transceiver and Arduino shield layout. Use the CAN FD library to experiment with frames and filters, and the onboard SD card slot for logging projects that you develop.
CAN FD + Classical CAN · SPI up to 10 MHz · DB9 connection · SD card slot · Configurable CS & INT
Quick Start Guide ↗ Arduino Library & Examples ↗ Hardware Files ↗
Before you order: A separate compatible Arduino board is required. Plug-in components are not soldered by default; contact us about assembly before ordering if needed. An Arduino board, SD card, USB cable and OBD-II cable are not included.
Why choose CAN FD Shield for Arduino?
- Develop for CAN FD and Classical CAN. Use the appropriate mode and bit timing for your network.
- Keep your Arduino development tools. The documentation covers Uno (ATmega328), Mega (ATmega1280/2560) and Leonardo (ATmega32U4) hosts.
- Build a logging application. The SD card slot provides a storage interface; your firmware determines which frames are captured and how they are stored.
- Plan shared SPI resources. Configurable CAN CS, SD-card CS and INT pins help you coordinate the shield with other devices.
- Use documented connections. DB9 pinout options, a CAN terminal and the termination resistor switch are covered in the hardware guide.
What can you build?
- CAN FD development: test sending and receiving frames between compatible nodes.
- Custom CAN loggers: write selected messages to an SD card using your own logging firmware.
- Controller prototypes: connect Arduino application logic to CAN-equipped systems.
- CAN-based vehicle experiments: develop the required application protocol and use a correctly wired cable.
Start with a CAN communication example.
- Prepare the shield and host. Assemble the required plug-in parts and verify the board pin map.
- Install the CAN FD library. Use the shield-specific CS and INT configuration shown in the examples.
- Wire the CAN network. Check pinout, ground reference and termination. Set matching arbitration and data-phase bit rates for FD operation.
- Run a send/receive test. Use another compatible node, then add filtering or SD logging as your project requires.
Prepare for your first test: A compatible Arduino board, USB data cable, CAN wiring, assembly tools if needed and another compatible CAN node or test interface. Add an SD card for logging and a compatible cable for OBD-II projects.
Hardware at a glance
| Product type | Arduino expansion shield; host board required |
|---|---|
| Documented Arduino hosts | Uno (ATmega328), Mega (ATmega1280/2560), Leonardo (ATmega32U4) |
| CAN controller | MCP2517FD |
| Transceiver | CAN FD-capable transceiver |
| CAN modes | CAN FD and Classical CAN |
| SPI interface | Up to 10 MHz; this is the host SPI clock, not the CAN bit rate |
| CAN connections | DB9 and CANH / CANL terminal |
| DB9 pinout | OBD-II by default; alternative CAN pinout configurable |
| Storage interface | Onboard SD card slot; card and logging application required |
| Configurable pins | CAN CS, SD-card CS and INT |
| Termination | 120Ω resistor switch; configure for your bus topology |
What's included
- 1 × CAN FD Shield kit
Plug-in parts require assembly by default. For a specific connector/header configuration, confirm the current kit contents and assembly arrangement with order@longan-labs.cc before shipment.
Frequently asked questions
Can it operate without an Arduino?
No. The shield provides the CAN hardware; the Arduino host runs your application.
Does the SD slot make this a finished data logger?
No. It provides a storage interface. You need an SD card and firmware to select, timestamp and save the data. Capture performance depends on the host, storage access and bus traffic.
Is 10 MHz the CAN speed?
No. It is the maximum SPI interface clock listed for the shield. CAN arbitration and data-phase bit rates must be configured separately to match the network.
Will it work with every newer Arduino board?
The documented hosts are the AVR-based Uno, Mega and Leonardo models listed above. Check voltage, SPI routing, library support and pin mapping for other boards before ordering.
Does the OBD-II or CANopen pinout provide those protocols?
The DB9 configuration defines the connector wiring. Diagnostic requests, PID decoding and CANopen behavior require appropriate application firmware or a protocol stack. An OBD-II cable alone does not add diagnostic software.
Where can I get setup help?
Use the documentation and example code below. For technical help, email support@longan-labs.cc with your order details, board version, wiring photo and a description of the issue. Our engineers usually reply within 24 hours on working days.
Documentation & downloads
- Product documentation, setup & troubleshooting
- Arduino library & examples
- Schematics & hardware files (ZIP)
Compliance documents
From prototype to a larger order
Need multiple units, a specific assembly configuration or a modified design? Longan Labs provides product customization services, including circuit design, firmware development and PCB assembly.
Send your quantity, host platform, connector requirements, project needs and target delivery date so we can review your request and provide a quotation.
Shipping & support
- Ships from China. We deliver to most countries worldwide. Shipping charges are shown at checkout.
- Tracked delivery. Our default carrier is 4PX, with typical delivery of 7–10 days to North America and Europe. Actual times vary by destination and customs clearance.
- Need express shipping? Email order@longan-labs.cc to ask about DHL or FedEx and the additional cost.
- Technical help. Contact support@longan-labs.cc for setup and troubleshooting. Our engineers usually reply within 24 hours on working days.
- If a product arrives defective: contact us for troubleshooting. Once a product defect is confirmed, you can choose a refund or replacement without returning the original.
- Bank transfer orders. Send your product list and quantities to order@longan-labs.cc for a quotation and payment instructions.
Designed by Longan Labs in Shenzhen. We develop open source CAN hardware and support makers, engineers and teams with documentation, technical assistance and custom product development.
CAN FD Shield for Arduino
SKU: 1030012
Volume pricing
CAN FD SHIELD FOR ARDUINO · ARDUINO CAN FD EXPANSION SHIELD
Add CAN FD to your Arduino workflow.
Build CAN FD and Classical CAN prototypes with an MCP2517FD controller, CAN FD-capable transceiver and Arduino shield layout. Use the CAN FD library to experiment with frames and filters, and the onboard SD card slot for logging projects that you develop.
CAN FD + Classical CAN · SPI up to 10 MHz · DB9 connection · SD card slot · Configurable CS & INT
Quick Start Guide ↗ Arduino Library & Examples ↗ Hardware Files ↗
Before you order: A separate compatible Arduino board is required. Plug-in components are not soldered by default; contact us about assembly before ordering if needed. An Arduino board, SD card, USB cable and OBD-II cable are not included.
Why choose CAN FD Shield for Arduino?
- Develop for CAN FD and Classical CAN. Use the appropriate mode and bit timing for your network.
- Keep your Arduino development tools. The documentation covers Uno (ATmega328), Mega (ATmega1280/2560) and Leonardo (ATmega32U4) hosts.
- Build a logging application. The SD card slot provides a storage interface; your firmware determines which frames are captured and how they are stored.
- Plan shared SPI resources. Configurable CAN CS, SD-card CS and INT pins help you coordinate the shield with other devices.
- Use documented connections. DB9 pinout options, a CAN terminal and the termination resistor switch are covered in the hardware guide.
What can you build?
- CAN FD development: test sending and receiving frames between compatible nodes.
- Custom CAN loggers: write selected messages to an SD card using your own logging firmware.
- Controller prototypes: connect Arduino application logic to CAN-equipped systems.
- CAN-based vehicle experiments: develop the required application protocol and use a correctly wired cable.
Start with a CAN communication example.
- Prepare the shield and host. Assemble the required plug-in parts and verify the board pin map.
- Install the CAN FD library. Use the shield-specific CS and INT configuration shown in the examples.
- Wire the CAN network. Check pinout, ground reference and termination. Set matching arbitration and data-phase bit rates for FD operation.
- Run a send/receive test. Use another compatible node, then add filtering or SD logging as your project requires.
Prepare for your first test: A compatible Arduino board, USB data cable, CAN wiring, assembly tools if needed and another compatible CAN node or test interface. Add an SD card for logging and a compatible cable for OBD-II projects.
Hardware at a glance
| Product type | Arduino expansion shield; host board required |
|---|---|
| Documented Arduino hosts | Uno (ATmega328), Mega (ATmega1280/2560), Leonardo (ATmega32U4) |
| CAN controller | MCP2517FD |
| Transceiver | CAN FD-capable transceiver |
| CAN modes | CAN FD and Classical CAN |
| SPI interface | Up to 10 MHz; this is the host SPI clock, not the CAN bit rate |
| CAN connections | DB9 and CANH / CANL terminal |
| DB9 pinout | OBD-II by default; alternative CAN pinout configurable |
| Storage interface | Onboard SD card slot; card and logging application required |
| Configurable pins | CAN CS, SD-card CS and INT |
| Termination | 120Ω resistor switch; configure for your bus topology |
What's included
- 1 × CAN FD Shield kit
Plug-in parts require assembly by default. For a specific connector/header configuration, confirm the current kit contents and assembly arrangement with order@longan-labs.cc before shipment.
Frequently asked questions
Can it operate without an Arduino?
No. The shield provides the CAN hardware; the Arduino host runs your application.
Does the SD slot make this a finished data logger?
No. It provides a storage interface. You need an SD card and firmware to select, timestamp and save the data. Capture performance depends on the host, storage access and bus traffic.
Is 10 MHz the CAN speed?
No. It is the maximum SPI interface clock listed for the shield. CAN arbitration and data-phase bit rates must be configured separately to match the network.
Will it work with every newer Arduino board?
The documented hosts are the AVR-based Uno, Mega and Leonardo models listed above. Check voltage, SPI routing, library support and pin mapping for other boards before ordering.
Does the OBD-II or CANopen pinout provide those protocols?
The DB9 configuration defines the connector wiring. Diagnostic requests, PID decoding and CANopen behavior require appropriate application firmware or a protocol stack. An OBD-II cable alone does not add diagnostic software.
Where can I get setup help?
Use the documentation and example code below. For technical help, email support@longan-labs.cc with your order details, board version, wiring photo and a description of the issue. Our engineers usually reply within 24 hours on working days.
Documentation & downloads
- Product documentation, setup & troubleshooting
- Arduino library & examples
- Schematics & hardware files (ZIP)
Compliance documents
From prototype to a larger order
Need multiple units, a specific assembly configuration or a modified design? Longan Labs provides product customization services, including circuit design, firmware development and PCB assembly.
Send your quantity, host platform, connector requirements, project needs and target delivery date so we can review your request and provide a quotation.
Shipping & support
- Ships from China. We deliver to most countries worldwide. Shipping charges are shown at checkout.
- Tracked delivery. Our default carrier is 4PX, with typical delivery of 7–10 days to North America and Europe. Actual times vary by destination and customs clearance.
- Need express shipping? Email order@longan-labs.cc to ask about DHL or FedEx and the additional cost.
- Technical help. Contact support@longan-labs.cc for setup and troubleshooting. Our engineers usually reply within 24 hours on working days.
- If a product arrives defective: contact us for troubleshooting. Once a product defect is confirmed, you can choose a refund or replacement without returning the original.
- Bank transfer orders. Send your product list and quantities to order@longan-labs.cc for a quotation and payment instructions.
Designed by Longan Labs in Shenzhen. We develop open source CAN hardware and support makers, engineers and teams with documentation, technical assistance and custom product development.