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A robust, industrial-grade 3.3V Dual-CAN interface featuring full galvanic isolation and integrated ESD protection.
Prototyping
CANbus
ESP32

Isolated Dual-CAN Board - Classic CAN 2.0B (3.3V)

Sold by smuQDev

$45.58

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Original Design
This product was designed by smuQDev. By buying this product you support original hardware creators.

Isolated Dual CAN Board (3.3V Logic | Classic CAN 2.0B) Protect your microcontrollers from ground loops and electrical noise.

This Isolated Dual CAN Board is a professional-grade communication interface designed for developers who require high signal integrity and robust hardware protection. It provides two independent, fully isolated CAN channels, making it an essential tool for automotive diagnostics, industrial automation, and complex robotics projects.

Key Technical Highlights: Galvanic Isolation & ESD Protection: Integrated high-speed digital isolators and ESD protection circuitry safeguard your host controller (ESP32, STM32, RP2040, etc.) from voltage spikes and ground loops.

Symmetrical 120Ω Termination: Engineered with high-precision, symmetrical resistance to ensure superior signal quality and minimize reflections on the bus.

Onboard DIP-Switches: Easily enable or disable the termination resistors for each channel independently using robust SMD switches—no soldering required.

Industrial EMI Filtering: Equipped with Common Mode Chokes on both channels to provide exceptional noise immunity in harsh electrical environments.

Status Diagnostics: Four onboard LEDs provide instant visual feedback for Power and RX/TX activity for both channels.

Technical Specifications: Standard: Classic CAN 2.0B (Non-FD).

Logic Level: 3.3V (Compatible with ESP32 series, STM32, RP2040, Teensy, etc.).

Dimensions: 56 x 75 mm (Features M3 mounting holes for easy integration).

Interface: Standard IDC 10-pin header (ribbon cable included).

Connectors: Industrial-quality pluggable screw terminals for CANH, CANL, and GND.

Shipping & Sustainability 📦 Shipping from: Munich, Germany. 🌍 Eco-Friendly Packaging: To reduce environmental impact, I prioritize the use of recycled or previously used cardboard boxes. Your hardware will be packed securely and professionally, even if the outer box has a "previous life." Thank you for supporting sustainable engineering! ⚡ Tested & Ready: Every unit undergoes a 100% functional test before being dispatched.

⚠️ Important Disclaimer / Private Sale This board is a development tool intended for prototyping, engineering, and educational purposes only. It is not a finished consumer product with formal CE/FCC certification.

Private Sale: This is a private sale by an independent developer.

No Liability: The hardware is provided "as is." The seller assumes no liability for any damage to connected equipment, machinery, or property resulting from the use, integration, or misuse of this board.

Use at your own risk. By purchasing this item, you acknowledge and agree to these terms.

Links to code and documentation

Code (github.com)

Shipping policy

Location & Dispatch

All orders are tested, packed, and dispatched from Munich, Germany. I usually process and drop off packages within 1–3 business days after payment is confirmed.

Carriers & Tracking

Germany: Shipped via DHL or Deutsche Post (Warenpost).

EU & International: Shipped via Deutsche Post International or DHL.

All shipments include a tracking number, which will be provided to you as soon as the label is generated.

Sustainable Packaging

In line with my commitment to sustainability, I use recycled or repurposed cardboard boxes and protective materials. While the packaging may have been used before, I ensure that your hardware is securely padded and protected against static and physical damage.

Environmental Compliance

I am fully registered with the German LUCID packaging register (DE1619290503596) and comply with all national recycling regulations.

Customs & Import Duties (Non-EU Customers)

Please note that for orders shipped outside the European Union, the buyer is responsible for any import duties, taxes, or customs clearance fees required by their country.

Damaged Shipments

Every board is 100% tested before shipping. However, if your package arrives visibly damaged, please take photos before opening and contact me immediately so we can resolve the issue with the carrier.

This product does not ship to United States.

The seller

smuQDev

smuQDev logo

München, Germany
0 orders since May 2, 2026
Welcome to my store. I am an independent hardware developer based in Munich, Germany, focused on creating high-quality, reliable communication tools for the maker and industrial community.