BIGTREETECH U2C 2.1 CAN Bus Module – Raspberry Pi Voron
BIGTREETECH U2C 2.1 CAN Bus Module – Raspberry Pi Voron
BIGTREETECH U2C 2.1 CAN Bus USB-to-CAN Module for Raspberry Pi & Voron 3D Printers
Upgrade your Voron or other 3D printer build with the BIGTREETECH U2C 2.1 Module — a compact, high-reliability USB-to-CAN bus adapter designed to connect your Raspberry Pi host to CAN-enabled toolhead boards and peripheral modules. Featuring a robust TYPE-C port, ESD protection, and a premium immersion-gold PCB, this module delivers fast, stable, and noise-resistant communication across your entire printer electronics chain.
Key Features
- CAN Bus Connectivity: Supports long-distance data transmission with strong anti-noise capability, excellent real-time performance, and high reliability — ideal for multi-board 3D printer setups.
- TYPE-C Port with ESD Protection: The USB Type-C interface includes electrostatic discharge (ESD) safeguards to protect your hardware from static damage.
- Firmware Update Support: Compatible with firmware updates via SWD interface or hardware DFU mode, keeping your module current with ease.
- Immersion Gold PCB Surface: The ENIG (Electroless Nickel Immersion Gold) PCB finish ensures excellent conductivity, corrosion resistance, and long-term durability.
- Compact Rectangular Form Factor: Small footprint fits neatly inside standard Voron electronics enclosures without crowding your build.
Specifications
| Model | U2C 2.1 |
| Material | PCB (Immersion Gold) |
| Dimensions | Approx. 85.45 × 25.35 mm (3.36 × 1 in) |
| Interface | USB Type-C |
| Bus Protocol | CAN Bus |
| Firmware Update | SWD / Hardware DFU |
| Assembly Required | Yes |
| Country of Origin | Made in Mainland China |
What's in the Box
- 1 × BIGTREETECH U2C 2.1 CAN Bus Module
Note: No retail packaging included. Please allow ±1 cm tolerance due to manual measurement.
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Frequently Asked Questions
Q: What is the BIGTREETECH U2C 2.1 module used for in a Voron printer?
A: The BIGTREETECH U2C 2.1 module acts as a USB-to-CAN bus bridge, allowing your Raspberry Pi host computer to communicate with CAN-enabled toolhead boards (such as EBB series boards) and other CAN peripherals in your Voron or compatible 3D printer build. It simplifies wiring by replacing multiple individual cables with a single CAN bus network.
Q: How do I update the firmware on the U2C 2.1 module?
A: The U2C 2.1 supports firmware updates via two methods: the SWD (Serial Wire Debug) interface using a compatible programmer, or hardware DFU (Device Firmware Upgrade) mode accessible through the USB Type-C connection. Both methods are straightforward and allow you to keep the module up to date with the latest BIGTREETECH firmware releases.
Q: Is the TYPE-C port on the U2C 2.1 protected against static damage?
A: Yes. The USB Type-C port on the U2C 2.1 includes built-in ESD (Electrostatic Discharge) protection circuitry, which guards both the module and your connected Raspberry Pi or host computer against damage from static electricity during connection and operation.
Q: Does the U2C 2.1 require assembly before use?
A: Some assembly is required — typically mounting the module into your printer's electronics bay and connecting the appropriate CAN bus wiring and USB Type-C cable. No soldering of the module itself is needed for standard installations.
Production & Packaging Notice
To maintain high stock availability and fast shipping times, our items are sourced from multiple verified manufacturing facilities. While the core quality, materials, and product specifications remain identical, you may notice slight variations in the packaging design, manufacturing origin, or the wording of the printed instructions.