Introduction

Product Introduction

The FLY SB2040 PRO is a tool board developed by Guangzhou Magnesium Electronics Technology Co., Ltd. for the VORON Stealthburner print head. Using this tool board, the complex wiring between the mainboard and the print head can be replaced with just four wires, optimizing the layout. The SB2040 is compatible with both Stealthburner and Afterburner. It integrates a CAN transceiver, USB port, TMC2240 driver, ADXL345 accelerometer sensor, three controllable fans, and other features. This tool board is suitable for use with Klipper and RRF firmware.

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Product Features

• Reserved Boot button, allowing users to enter Boot mode via Type-C for firmware updates
• Supports Klipper firmware
• Temperature sensor support: Onboard MAX31865 chip, compatible with PT100
• Onboard ADXL345 accelerometer sensor
• Reserved RGB interface, onboard 2240 driver, supports various leveling sensors such as Klicky, Voron Tap, PL08n, etc.
• Supports 12-24V voltage, 15A current input, with an enlarged heating rod port rated at 10A current

Product Parameters

• MCU: Raspberry Pi RP2040, Dual-core ARM Cortex-M0+ @133MHz
• Connection interface: 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
• Heating rod interface: Heating rod (HEAT0)
• Expansion interfaces: Controllable fans * 3, RGB * 1, limit switches * 3, heating tube * 1, thermistor * 1
• Fan interfaces: Three controllable fan channels
• Motor driver: Onboard TMC2240

Product Notes

Output Port	Maximum Current at 24V Power Supply	Maximum Current at 12V Power Supply
Heating Port	5A	2.5A
Fan Port	1A	0.5A