Servo problems

Lukas

(sorry, my english is not the best)

I've got a problem: The two servos of my boe-bot aren't precise enough. I already have adjusted (centered) them, but the left servo still turns a bit faster.
In my manual 'Robotics with the Boe-Bot' they told me that I should adjust them per code (that means for example that I use 840 instead of 850).
But now, when the battery gets lower, I have to adjust the servos per code again.

Has anyone got this problem, too or does anyone know the answer to this problem? Do I need new servos?
Thanks for you answers!

Franklin

The servos are fine they just are not designed to be accurate. What you need are wheel encoders, then you count the pulses of one wheel and make sure the other wheel makes the same number of pulses. Google wheel encoders for plenty of information.

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- Stephen

D Faust

You could use a circuit to monitor battery voltage.· Although I think encoders are best.· If you are interested in the battery monitoring (which can be done with boe-bot parts) check out the emesystems web page.· They have soem good info.· It might be listed under the rctime command.

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