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Introduction

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1. Product Introduction

FLY SB2040 V3 is a tool board launched by Guangzhou Maglun Electronic Technology Co., Ltd. for the VORON Stealthburber print head. With this tool board, four wires can be used to replace the complicated wiring between the original motherboard and the print head, optimizing the layout. SB2040 is suitable for stealthburner and afterburner. It integrates CAN transceiver, RS232 transceiver, USB port, TMC2209 driver, LIS2DW accelerometer, three controllable fans, and other functions of the tool board. This tool board is suitable for Klipper and RRF firmware.

1.1 Product Features​

  • Reserve Boot button, users can enter Boot mode to update firmware through TypeC
  • Support Klipper firmware, RRF firmware
  • Support CAN mode, RS232 mode, RRF CAN mode
  • In RS232 mode, it has a higher transmission rate and stronger stability. In CAN mode, it supports CAN expansion and reserves CAN expansion interface
  • Temperature sensor support: On-board MAX31865 chip, compatible with PT100 and PT1000 temperature sensors.
  • On-board LIS2DW accelerometer and LDC1612 sensor
  • Reserve RGB interface, on-board 2209 driver, support various leveling sensors, such as klicky, Voron Tap, PL08n, etc.
  • Support 12-24V voltage, 15A current input, increase heating rod port, rated current 10A

1.2 New Features​

  • Support mutual switching between Klipper CAN mode, RS232 mode, and RRF CAN mode
  • Add RS232 mode, which has a higher transmission rate, stronger stability, and simpler debugging use
  • Add RRF CAN mode, can be switched to RRF tool board to enhance applicability
  • Add CAN expansion interface to facilitate the expansion of CAN devices
  • Add terminal resistor DIP switch, its terminal resistor 120R can be selected by DIP switch, no need for jumper
  • Add 1-meter power/signal connection line, the connection line uses twisted pair design, with stronger anti-interference performance

1.3 Product Parameters​

  • MCU: Raspberry Pi rp2040, Dual core ARM Cortex-M0+@133MHz
  • Connection interface uses XT30(2+2) connector to support 15A current, peak 30A
  • Firmware: Reprap/Klipper
  • Input voltage: DC12V-24V
  • Logic voltage: DC3.3V
  • On-board sensors: LIS2DW and optional ldc1612 and max31865
  • Heating rod interface: Heating rod (HEAT0)
  • Expansion interface: RGB, EndStop, PT100/PT1000, XH2.54-2P CAN port
  • Fan interface: One DC fan, two DC fans or PWM fan
  • Motor driver: On-board TMC2209
  • Temperature sensor: One 100K NTC or PT1000 (TH0), one PT100/PT1000 optional

4. Product Classification

RRF tutorial link RRF

SB2040V3Plus V3Max V3Pro V3Pro Plus V3Pro Max V3
Drivealt textalt textalt textalt textalt textalt text
Klipper CANBus✅✅✅✅✅✅
Klipper RS232✅✅✅✅✅✅
RRF CANBus❌❌✅❌❌✅
LIS2DW✅✅✅✅✅✅
MAX31865❌✅✅❌✅✅
LDC1612❌❌✅❌❌✅