Installing Huanyung VFD on Heiz Zero3 Controller

[Boyan Silyavski]

I read again what they say. So it seems from LPT2 pin 18 is the +10VDC, but you have to ask them again , where to take the - from.

That can not be right the breakout board and spindle control to have same common ground and power supply. But maybe they made it like that.