This On Sun, Jan 23, 2022 at 4:30 PM andy pugh <bodge...@gmail.com> wrote:
> On Sat, 22 Jan 2022 at 04:49, Chris Albertson <albertson.ch...@gmail.com> > wrote: > > > > Arduino? Too slow to coune pulses if they happen every 0.0001 inch > unless > > the table moves slow. > > As long as it gets a couple of samples every 0.1" it should be fine. > Between the pins it's an absolute encoder, like a multi-turn resolver. > > Though I would still suggest using one of the M4 or M0 boards from > Adafruit, as the clock rate and floating point performance are just > orders of magnitude higher, for about twice the cost. > That is about what I suggested. "Pico" is a dual core M0. Adafruit has them for $4 each. https://www.adafruit.com/product/4864 So yes, orders of magnitude better but half, not twice the cost. The price is so low that it is little different from free. That for two M0 cores at 125 MHz and 8 of those programmable state machine, also at 125MHz. and 2 MB of flash. Very good documentation. Works with Arduino IDE and runs most Arduio code but you can program it with Python too. > -- > 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, 1912 > > > _______________________________________________ > Emc-users mailing list > Emc-users@lists.sourceforge.net > https://lists.sourceforge.net/lists/listinfo/emc-users > -- Chris Albertson Redondo Beach, California _______________________________________________ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
