Duet 2 Ethernet
Duet 2 Ethernet: 120 MHz ARM Cortex-M4 board with W5500 Ethernet, SPI TMC2660 drivers, dual extruders, PT100/Type-K, web control out of the box
About Duet3D
Duet3D is a UK-based company that develops high-performance motion control electronics and software. Founded from the RepRap community, it is best known for its Duet series controller boards and the open-source RepRapFirmware (RRF), widely used in 3D printing, CNC, and automation systems.
What is the Duet 2 Ethernet?
The Duet 2 Ethernet is a 32-bit motion control electronics board powered by the Atmel SAM4E8E ARM Cortex-M4 processor (120 MHz).
It is designed for high-performance, reliable motion control with integrated Wiznet W5500 Ethernet networking, ensuring stable remote access and web-based configuration.
Key Features of Duet 2 Ethernet
Processor: Atmel SAM4E8E ARM Cortex-M4, 120 MHz (32-bit)
512 KB Flash, 128 KB RAM
→ Much faster than legacy 8-bit boards, enabling smooth motion and advanced features
Ethernet Networking: Dedicated W5500 chip, TCP/IP offload for fast and reliable web control
Stepper Drivers: TMC2660 (SPI controlled, up to 256 microstepping, 2 A RMS).flexible expandability for advanced control systems
Thermal Management: 3 heater/thermistor channels, 3 PWM fans, 2 always-on fans
Expansion: Support for up to 7 extruders via expansion header
Sensor Compatibility: PT100 and Type-K thermocouple support with daughter boards
User Interface: Compatible with PanelDue touchscreen controller
Connectivity: MicroSD card and USB interface included
Firmware : Runs RepRap Firmware(RRF),Web interface for uploading G-code and tuning parameters in real time
Why Choose Duet 2 Ethernet?
The Duet 2 Ethernet stands out because it combines powerful motion control, stable Ethernet networking, and easy expandability.
Unlike older 8-bit boards, it handles higher step rates, real-time adjustments, and advanced monitoring without bottlenecks.
Applications of Duet 2 Ethernet
This controller board is ideal for:
Precision motion systems
Multi-axis motor control
Network-enabled automation setups
Any project requiring stable Ethernet connectivity with reliable real-time control
Final Thoughts
The Duet 2 Ethernet controller board offers the best balance of processing power, network connectivity, and modular expandability.
Its use of the Wiznet W5500 Ethernet chip guarantees smooth network performance without compromising motion control.
For engineers and makers seeking a modern, flexible motion control solution, the Duet 2 Ethernet is a solid investment.
In summary, the Duet 2 Ethernet is a high-performance 32-bit motion control board with stable W5500 Ethernet networking, precision TMC2660 drivers, and flexible expandability for advanced control systems.
📌 Additional Technical Details
🔹 RepRapFirmware (RRF)
The Duet 2 Ethernet controller board runs on RepRapFirmware (RRF), a powerful 32-bit open-source motion control firmware.
Easy configuration via plain-text config.g (no recompilation needed)
Supports multiple kinematics: Cartesian, Delta, CoreXY, SCARA, and more
Real-time tuning of motors, heaters, and PID settings through the Ethernet web interface
Advanced features like conditional G-code, user macros, and multi-extruder support
Perfect for users seeking a flexible, Ethernet-based control board with modern firmware
🔹 TMC2660 Stepper Drivers
The Duet 2 Ethernet is equipped with Trinamic TMC2660 stepper drivers, delivering quiet and efficient motion control.
Up to 256 microstepping for ultra-smooth and precise motor performance
Rated for 2.0 A RMS (2.4 A peak) per motor, suitable for demanding motion systems
SPI-controlled: enables on-the-fly current and microstepping adjustments
StallGuard2: sensorless stall detection for improved reliability
CoolStep: intelligent current management reduces heat and power consumption
A key advantage for anyone needing a high-performance motion controller with Ethernet connectivity