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
and5V
. - After connecting to the motherboard power, the motherboard power light should be on for
3.3V
,5V
, andVCC
.
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.