More thinking aloud, than a practical solution:
One of the reasons that I'm in the throes of building an analogue
computer is that, in the analogue domain, maths can be done very simply,
in hardware.
What if you were to get your cosine function as a voltage? Then take
said voltage and feed it into a bargraph driver (LM3914 is basically a
set of comparators.) OK, that doesn't give you a sequence of one LED
illuminating after another, but the growing stack of LEDs would still
have the same effective motion - no calculations involved.
This is all assuming that there's some way of persuading op amps to get
a cosine function out of a square wave - which could be provided by the
microcontroller. Not yet well-enough versed with op amp circuits, but
sure it must be possible - would start out with an integrator?
M
--
Matthew Smith
Business: http://www.smiffytech.com
Blog: http://www.smiffysplace.com
Linkedin: http://www.linkedin.com/in/smiffy
Flickr: http://www.flickr.com/photos/msmiffy
Twitter: http://twitter.com/smiffy
ABN 16 391 203 815
--
You received this message because you are subscribed to the Google Groups
"neonixie-l" group.
To unsubscribe from this group and stop receiving emails from it, send an email
to [email protected].
To post to this group, send an email to [email protected].
To view this discussion on the web, visit
https://groups.google.com/d/msgid/neonixie-l/5309217E.70801%40smiffytech.com.
For more options, visit https://groups.google.com/groups/opt_out.
