Help!! convert to GRBL **Spindle Connection.

[ashokavarthanan]

I convert NC-studio controller to GRBL-Mega
Everything working expect "Spindle" On.

NC-studio controller has 3 pin "H-M-L"
(I don't know "H-M-L" working principle.)
High-Mid-Low
But I cannot control via GRBL controller.

when I connect "H" pin to 5v the Spindle is running 'Half Speed'.
Please Help.
Thanks.

[langwadt]

if you just want full speed, try all three pins 5V (or the spindle control pin)

[ashokavarthanan]

Thanks for replay. I will try. then replay.

[ashokavarthanan]

if you just want full speed, try all three pins 5V (or the spindle control pin)

it works Thanks.