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Main Board Precautions

Power Indicator

  • When powered only through TYPE-C without connecting other motherboard power, at least two lights should be on: 3.3V and 5V.
  • After connecting to the motherboard power, the motherboard power light should be on for 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 the 3.3V light should remain constantly on.
  • If the 5V light does not turn on after connecting the motherboard power and driver power, contact customer service for after-sales support.

Driver

  • The motherboard supports an external driver Wiring and Configuration Tutorial

Limit Switch Port

  • Please pay attention to the wiring sequence. For three-wire limit switches, note that if 5V, GND, and S are connected incorrectly, it may lead to motherboard damage.
  • If two wires are directly connected, S and GND are sufficient.
  • PL08 and other proximity switches require an additional diode to reduce the voltage to below 3.3V at the signal port.