Introduction

Product Introduction

FLY SB2040 PRO is a toolboard developed by Guangzhou Meilun Electronics Technology Co., Ltd. for the VORON Stealthburner printhead. With this toolboard, four wires can replace the complicated wiring between the mainboard and the printhead, optimizing the layout. SB2040 is suitable for stealthburner and afterburner. It integrates a CAN transceiver, USB port, TMC2240 driver, ADXL345 accelerometer, three controllable fans, and other functions. This toolboard is compatible with Klipper and RRF firmware.

Product Features

• Boot button reserved, users can enter Boot mode via TypeC to update the firmware
• Supports Klipper firmware
• Temperature sensor support: onboard MAX31865 chip, compatible with PT100
• Onboard ADXL345 accelerometer
• RGB interface reserved, onboard 2240 driver, supports multiple leveling sensors, such as klicky, Voron Tap, PL08n, etc.
• Supports 12-24V voltage, 15A current input, increased heating cartridge port with rated current of 10A

Product Specifications

• MCU: Raspberry Pi rp2040, Dual core ARM Cortex-M0+@133MHz
• Connection interface uses XT30(2+2) connector supporting 15A current, peak 30A
• Firmware: Klipper
• Input Voltage: DC12V-24V
• Logic Voltage: DC3.3V
• Onboard Sensors: ADXL345 and optional MAX31865
• Heater Interface: Heater (HEAT0)
• Expansion Interface: Controllable fans x3, RGB x1, Endstop x3, Heater cartridge x1, Thermistor x1
• Fan Interfaces: Three controllable fan channels
• Motor Driver: Onboard TMC2240

Product Notes

Output Port	Maximum Current at 24V	Maximum Current at 12V
Heater Port	5A	2.5A
Fan Port	1A	0.5A