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Mainboard Precautions

Power Indicator Light​

  • When powered only through TYPE-C without connecting to other mainboard power, at least two lights should be on: 3.3V and 5V.
  • After connecting to mainboard power, the mainboard power light should illuminate 3.3V, 5V, and VCC.

Troubleshooting​

Notice
  • In the absence of any external devices (drivers, limit switches, 12864, etc.)
  • When powered only through TYPE-C, at least two LEDs, 3.3V and 5V, should remain constantly lit.
  • If no lights come on, it indicates a short circuit; contact customer service for assistance.
  • If one of the 3.3V or 5V lights is blinking, it indicates a short circuit; contact customer service for assistance.

Driver​

  • The mainboard supports external drivers Wiring and Configuration Guide

Limit Switch Port​

  • Pay attention to the wiring sequence. For three-wire limit switches, if the 5V, GND, and S are connected incorrectly, it may cause damage to the mainboard.
  • If using a two-wire connection, connect S and GND directly.
  • PL08 and other proximity switches require an external diode to reduce the voltage to below 3.3V at the signal port.

Firmware​

  • Due to button issues, the tutorial has been updated to use Katapult firmware for firmware flashing.
  • It is recommended to use a computer to flash Katapult firmware and then use Katapult firmware to flash Klipper.
  • BL Flashing