> > New schematic:
> >
> http://www.roboticsguy.com/images/misc/balancing_robot/balancing-robot-bo=
ard-schematic-r9.png
>
> That's definitely better, despite what Russell says (Russell feels it's h=
is
> mission to apologize for anyone I catch being lazy or irresponsible).

Tut tut.
Your failure to learn is most troubling :-).
That's demonstrably untrue, even in this instance, as I'm certainly
not being an apologist for you on either count in this instance. 'Tis
also a shame that you continue to hide behind that pretense so long
after it lacks any consistent credibility. Laziness and
irresponsibility are easily applied labels. using them discerningly
and appropriately takes a bit more work.

eg now that Nathan has followed you suggestions, ask him if he
considers that he was being lazy or irresponsible initially. (Not
that, based on most other prior 'challenges', I hold out much hope for
you doing that).

Are you indeed suggesting that your way is THE only way, that no other
way has merit and that your judgement on subjective matters is
necessarily correct?

> In general that looks pretty good. =A0The thing I was going to mention wa=
s the
> 1K resistors in series with the driver chip inputs. =A0If these are regul=
ar
> digital inputs of IC2 and IC2 and the PIC are on the same board, then the=
re
> is no need for them. =A0They will only slow down the edges.

For all values of "no" not involving magic motor juice leaking through
the driver IC into the PIC. He noted that these were to add a degree
of PIC protection if/when gang aglae. Others have commented on
appropriate values.

I largely agree with the following, which I won't quote in full.
I often agree with Olin once he gets into the technical explanation
mode. My disagreements often relate to snap judgements of people with
accompanying rudeness when inexperience, English as a second language
or unexpected but reasonable other factors may be involved. Knock
about 10% off the sharp edge and you'd have an extremely good
"product" indeed.

> Why is Vcc on the input side and Vdd on the output side of IC2? =A0Tha
....
> Both of those are bad ideas. =A0If it had been drawn properly, this would=
 have
> been immediately obvious.




            Russell

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