Duet 3 Expansion Board 1XD

$52.99

Type

In stock, ready to ship.

The Duet 3 Expansion 1XD is a CAN-FD connected expansion board for the Duet 3 Mainboard that provides connection to an external stepper driver and associated peripherals. It has standard Duet 3 RJ11 connectors for daisy-chaining the CAN-FD bus and accepts up to 48V to allow sharing power supplies with stepper drivers up to 48V. A connector kit is included.


The documentation contains more details, but a summary of the feature set includes:

  • ARM Cortex M0+ processor running at 48MHz
  • 5V single ended Step, Dir and Enable outputs for a single external stepper driver (common +5V pin)
  • Two low-current (2A max recommended) outputs at VIN voltage with PWM capability and built-in flyback diodes
  • One 5V-level output with PWM capability (3mA max), through 470R series resistor
  • Three digital inputs with permanent 27K pullup resistors, protected against over-voltage
  • One thermistor input (reduced accuracy compared to other Duet 3 boards, so PT1000 sensors not recommended).
  • RJ11 CAN In and CAN Out connectors to connect to the Duet 3 CAN-FD bus
  • VIN: 12V-48V

    The Duet family of motion control electronics

    Current production Duets

    Note: the Duet 3 Mini 5+ is not yet in production, but is included for comparison

    Feature Duet 2 WiFi Duet 2 Ethernet Duet 2 Maestro Duet 3 6HC Duet 3 Mini 5+ WiFi (provisional) Duet 3 Mini 5+ Ethernet (provisional)
    Processor ATSAM4E8E ATSAM4S8C ATSAME70Q20B ATSAMD51P20A ATSAME54P20A
    Processor features 120MHz ARM Cortex M4F, 512Kb flash, 128Kb RAM, hardware floating point (single precision), DMA, 2Kb cache 120MHz ARM Cortex M4, 512Kb flash, 128Kb RAM, DMA 300MHz ARM Cortex M7, 1Mb flash, 384Kb RAM, hardware floating point (double precision), DMA, 32Kb cache 120MHz ARM Cortex M4F, 1Mb flash, 256Kb RAM, hardware floating point (single precision), DMA, 4Kb cache
    Networking 2.4GHz WiFi 10BaseT/100BaseTX Ethernet 10BaseT/100BaseTX Ethernet 10BaseT/100BaseTX Ethernet, or via attached SBC 2.4GHz WiFi 10BaseT/100BaseTX Ethernet
    Support for attached Raspberry Pi or other Single Board Computer (SBC) No No Yes Yes
    Stepper drivers on-board 5 x TMC2660 5 x TMC2224 6 x TMC2160 or TMC5160 5 x TMC2209
    Stepper driver features Up to 2.4A peak current, microstep interpolation from x16 to x256, stall detection Up to 1.4A peak current, microstep interpolation from any setting to x256, stealthChop2 Up to 6.3A peak current, microstep interpolation from any setting to x256, stall detection, stealthChop2 Up to 2.0A peak current (TBC), microstep interpolation from any setting to x256, stall detection, stealthChop2
    Stepper driver expansion Up to 7 additional stepper drivers, of which up to 5 can be TMC2660 Up to 2 additional TMC2208 or TMC2224 stepper drivers Almost unlimited expansion using CAN-connected expansion boards 3 additional TMC2209 stepper drivers
    External stepper driver support Up to 7 external stepper drivers when not using DueX expansion board. Signal levels are 3.3V. A 4-channel expansion breakout board is available to level shift them to 5V. Not supported Via CAN bus In principle, up to 3 external stepper drivers could be connected in place of the 3-driver expansion board. Signal levels are 3.3V.
    Heater outputs Bed heater (up to 18A), 2 x extruder heater (up to 6A each) Bed heater (up to 18A TBC), 2 x extruder heater (up to 6A each) Bed heater (up to 18A TBC), 3 x extruder heater (up to 6A each) Bed heater (up to 18A TBC), 2 x extruder heater (up to 5A each)
    Thermistor/PT1000 inputs 3, optimised for 100k thermistors, can support PT1000 sensors with reduced accuracy 4, optimised for 100K thermistors and PT1000 sensors 4, optimised for 100K thermistors and PT1000 sensors 3, optimised for 100K thermistors and PT1000 sensors
    PT100 and thermocouple daughter board support 2 boards (4 channels) 2 boards (4 channels) - second board available only if I2C expansion pins are not used 2 boards (4 channels) 1 board (2 channels)
    Heater/thermistor expansion 5 more extruder heater outputs and thermistor inputs, 2 more PT100/thermocouple daughter boards (4 channels) None Almost unlimited via CAN-connected expansion boards None
    Endstop or filament monitor inputs 5 on-board (STP pins are 8V-tolerant on revision 1.04 and later), 7 expansion 5 on-board (STP pins are 30V-tolerant) 9 on-board I/O connectors for endstop, filament monitor, Z probe or PanelDue connection. Inputs are 30V-tolerant. Almost unlimited expansion via CAN-connected expansion boards. 6 on-board I/O connectors plus 2 input-only connectors for endstop, filament monitor, Z probe or PanelDue connection. Inputs are 30V-tolerant.
    Endstop status LEDs Yes No No No
    Z probe connector 4-pin with IN/GND/MOD/3V3 pins (IN pin is 30V-tolerant in revision 1.04 and later) 5-pin with IN/GND/MOD/3V3/5V pins (IN pin is 30V-tolerant) See under Endstop or filament monitor inputs See under Endstop or filament monitor inputs
    Fan outputs 3 controlled fans, 2 always-on fan connectors, voltage selectable between VIN, 5V or external supply (all fans together); 6 more controlled fans on expansion board 3 controlled fans, 1 always-on fan connector, voltage selectable between VIN, 5V or external supply in 2 banks 6 controlled fans of which 3 support 4-wire fans with PWM and tacho wires, voltage selectable between VIN and 12V in 2 banks 4 controlled fans of which 2 support 4-wire fans with PWM and tacho wires, voltage selectable between VIN and 12V in 2 banks
    Servo support Up to 5 via expansion connector (3.3V drive unless expansion board used) 1 servo output on board with 5V drive (shares the output with the Z probe MOD pin and the diagnostic LED) See under Endstop and filament monitor inputs. Also one output with 5V signal level for servo, laser or VFD converter (shared control signal with one of the 2-wire fan outputs). See under Endstop and filament monitor inputs. Also one output with 5V signal level for servo, laser or VFD converter (shared control signal with one of the 2-wire fan outputs).
    Input power voltage 11V to 25V 11V to 28V 11V to 32V 11V to 25V
    Power monitoring VIN voltage and input to on-board 5V regulator VIN voltage VIN voltage and 12V regulator output voltage VIN voltage
    LCD support PanelDue colour touch screen PanelDue colour touch screen, 12864 mono graphics display (5V signal levels, ST7920 controller) Typically provided by HDMI touch screen attached to the SBC. PanelDue also supported. PanelDue colour touch screen, mini 12864 mono graphics display (3.3V signal levels, ST7567 controller)
    LED strip support No No Neopixel (max. 50 LEDs) or DotStar Neopixel (max. 50 LEDs, external 5V power required; not available if Mini 12864 display uses Neopixel lighting)
    Other expansion 4 GPIO pins on Duex 2/Duex 5 expansion board, 16 GPIO pins on third-party SX1509B-based I/O expansion board 2 pins usable as analog inputs, GPIO, or UART; 2 pins usable as I2C or GPIO Almost unlimited expansion via CAN-connected expansion boards Via I/O ports only Via I/O ports only. Possibility of expansion via CAN later using a daughter board.
    SD card interface speed 20Mbytes/sec 15Mbytes/sec 25Mbytes/sec 15Mbytes/sec (may be increased)
    RepRapFirmware versions available 2.0 series, 3.0 series 2.0 series, 3.0 series 3.0 series 3.0 series
    Legacy Duets
    Feature Duet 0.6 Duet 0.8.5
    Processor ATSAM3X8E ATSAM3X8E
    Processor features ARM Cortex M3, 512Kb flash, 96Kb RAM, DMA ARM Cortex M3, 512Kb flash, 96Kb RAM, DMA
    Networking Ethernet Ethernet
    Stepper drivers on-board 4 x A4982 5 x A4982
    Stepper driver features Up to 2.0A peak current, x16 microstepping Up to 2.0A peak current, x16 microstepping
    Stepper driver expansion Up to 4 additional stepper drivers Up to 4 additional stepper drivers
    Heater outputs Bed heater (up to about 11A), extruder heater (up to 4A), up to 4 more extruder heaters on DueX4 expansion board Bed heater (up to about 13A), 2 x extruder heater (up to 4A), up to 4 more extruder heaters on DueX4 expansion board (last one shared with Fan 1)
    Thermistor inputs 2 3
    Heater/thermistor expansion 4 more extruder heater outputs and thermistor inputs on DueX4 4 more extruder heater outputs and thermistor inputs on DueX4
    Endstop or filament monitor inputs 4 on-board, 4 expansion 5 on-board, 4 expansion
    Endstop status LEDs Yes Yes
    Z probe connector No, use expansion connector 4-pin with IN/GND/MOD/3V3 pins
    Fans 1 controlled fan 2 controlled fans
    Input power voltage 11V to 30V 11V to 28V
    Power monitoring No No
    LCD support PanelDue colour touch screen (via expansion connector) PanelDue colour touch screen (dedicated connector)
    SD card interface speed 21Mbytes/sec 21Mbytes/sec
    RepRapFirmware versions available 1.x series (latest is 1.26.1) 1.x series (latest is 1.26.1)