Grinder speed control with stable RPM

• Advanced speed control for grinder's AC brushed motor. With RPM stabilization via Back EMF.
• PCB and components can be ordered via EasyEDA in couple of clicks.

Video:

Note! Due size restrictions, it's impossible to create universal PCB for all kinds of grinders. We prepared PCBs for some popular models, but you can also route your own one.

Build manual

See illustrated instruction.