XbotX behaves oddly - seems to lock up one servo or the other

Started by #...@!%! Herzog August 8, 2004
Hi,
I have a 'stock' XbotX (no modifications to the hardware or software)
that I am having trouble with.

First, I cannot seem to get the PHOTOVOIRE to function at all. I try
darkened rooms and big light sources.

How can I check that the Cadium Sulfide photoresisters are working
and balanced? Anyone know the resistence rating (they come in a
variety of resistences)if I have to replace one.

Second, when using POSITION HOLD, is backs up but at times the left
wheel just takes over and it seems to have a processor jam. The
little guy just keeps going in circles. After I reset,he works fine
and the IR seems to be functioning and well balanced.

Otherwise, it seems functional. Of course, I have used
SERVO TRIM to center the servos.

Any suggestions appreciated.

G. Herzog



After watching the spin get progressively worse I removed the
batteries and was getting reach to return the unit. I put the
batteries in another device and found they were half dead.

It seems the the spin is caused by the power drain of the servo
motors when the batteries are marginal.

I put in a new set of batteries and have eliminated the spin (I
tested the 'position hold' function for over an hour with no problem.

Also, I up graded the software and the new version seems to have
photovore function correctly. I have no idea what was going on there.

Regards,
George Herzog

--- In , "#@!%! Herzog" <hwanghetw@y...> wrote:
> Hi,
> I have a 'stock' XbotX (no modifications to the hardware or
software)
> that I am having trouble with.
>
> First, I cannot seem to get the PHOTOVOIRE to function at all. I
try
> darkened rooms and big light sources.
>
> How can I check that the Cadium Sulfide photoresisters are working
> and balanced? Anyone know the resistence rating (they come in a
> variety of resistences)if I have to replace one.
>
> Second, when using POSITION HOLD, is backs up but at times the left
> wheel just takes over and it seems to have a processor jam. The
> little guy just keeps going in circles. After I reset,he works
fine
> and the IR seems to be functioning and well balanced.
>
> Otherwise, it seems functional. Of course, I have used
> SERVO TRIM to center the servos.
>
> Any suggestions appreciated.
>
> G. Herzog