The best platform for open source, CAN-bus Arduino projects

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CANFDuino combines several essential features into one complete, "ready-to-modify" package built for the real world. It provides dual CAN/CANFD ports, an SD card slot, and plenty of analog and digital IO. It also includes a built-in prototyping shield for SMT and through-hole components, a rugged aluminum enclosure, and robust connectors.

CANFDuino supports CANFD, the latest version of the CAN-bus standard, which accommodates speeds of up to 5 Mbps. Its has two native ports with DB9 connectors in an enclosure that’s ready to be mounted on your vehicle or installed in your autonomous project. This platform was designed for tinkerers, hackers, and industry professionals looking for an off-the shelf, open-source CAN-bus solution that requires little or no hardware assembly.

Traditional open-source CAN-bus solutions require multiple shields, hand wiring, delicate soldering, and merging of code libraries. They also require that you design and build your own enclosure to protect the result. CANFDuino is a finished, "ready-to-modify" product. It gives you a prototyping space, it simplifies the addition of Arduino IDE software libraries, and it comes with an enclosure.

Hack & Modify Vehicles

CANFDuino can be used for stand-alone vehicle hacking and spoofing—with no PC required. You can also use it for modification and automation of vehicles. It has no problem merging ECU data signals and driving IO based upon CAN/FD messages lights, custom switches, etc. It can also drive actuators, motors, and LED’s or record and transmit sensor and vehicle data via CAN.


FeatureCANFDuinoArduino DUEArduino Uno/Genuino
Processor SAMC218GA (32bit M0) SAM3X8E (32bit M3) ATmega328 (8bit)
CANFD Support2x Ports, Native None 1x Port/SR*
CAN Support2x Ports, Native 2x Ports, Native/SR* 1x Port/SR*
Prototyping SpaceSMT/Thru-Hole SR* SR*
SD Card SupportIncluded SR* SR*
Rugged EnclosureIncluded None None
Rugged ConnectorsIncluded None None
PWM/DIO14/24 12/54 6/14
Analog In10 12 6
UART2x (+1 UART2USB) 2x (+1 UART2USB) 1x (+1 UART2USB)
SPI1 1 1
2Wire1 2 1
Shields Required0 2 3

* SR = Additional Shield Required

Features & Specifications

Support & Documentation

You can find all of the information you need to install and test CANFDuino support for Arduino IDE—and to run and test your first CAN sketch—on GitHub. Example scripts are provided for dual-port bus sniffing, CAN-message gateway applications, OBD2 logging to an SD card, analog-to-CAN, CAN-to-PWM, I²C, UART, and SPI testing. And please feel free to send us your questions using the appropriate link below.

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Produced by Togglebit in Carmel, USA.

Sold and shipped by Crowd Supply.


One CANFDuino board, preinstalled into a custom aluminum enclosure, along with a loose, 12-pin terminal block and an adhesive decal for the outside of the enclosure.

$139 $8 US Shipping / $18 Worldwide

About the Team


Carmel, USA  ·

Specializing in instrumentation and control systems for the transportation world including automotive, motorsport, aerospace and open source.

Daniel Kasamis

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