On Sat, 27 Oct 2018 at 15:38, Eric Keller <keller...@gmail.com> wrote:

> The $20 MPG dials seem a
> little large for a feed rate override.

There are lots of 2-channel encoder switches in a potentiometer-like format.
Typically 16 clicks per rev.

There are BCD coded ones too, but they need more IO pins each (4)
https://www.ebay.co.uk/itm/142979578446

-- 
atp
"A motorcycle is a bicycle with a pandemonium attachment and is
designed for the especial use of mechanical geniuses, daredevils and
lunatics."
— George Fitch, Atlanta Constitution Newspaper, 1916


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