--- In mach1mach2cnc@..., Steve Blackmore <steve@p...>
wrote:
<snip>
Hi John - it is a Schmitt trigger device, it's RS part No 304-560.
I was thinking of reducing the iF value on the diode a bit to see
if
dimming would help.
I'll see if Art's debounce works, in the meantime it's easy enough
to
solder those on to the board and see what happens ;)
If you are slowing the edges of the waveform with the R/C network
then a schmitt after the filter would square them up. A little noise
with the waveform going slowly through a switching point with no
hysteresis might give hi lo hi when sampled every 40 uSec. The
software debounce will probably do a better job anyway.
I will try very hard to rig up a step/dir servo spindle to join your
tests - it must be lonely!
John Prentice
