Youyue-858D+ FAN-speed mod:
LAYOUT FILES: Proper commutation-based speed detection for the BLDC fan.
Made to be used on top of this circuit board:
MCU-adapter-board repository
Firmware repository
Safety information / disclaimer:
Making any modifications to this device may cause you irreversible physical harm or worse.
You do this at your own risk.
There is a significant risk of lethal electrical shock, so if you still insist of doing so, make sure to
ALWAYS UNPLUG THE MAINS CABLE before dismantling the device. Check repeatedly.
If you have an isolation transformer - do use it.
Before having PC-boards made, please make sure you know about your manufacturer's peculiarities! Especially drill-sizes and their tolerances may vary too much and give you trouble.