BOE REV B PROBLEMS for Earl Bollinger

Archiver

The thing is that I tried inversing the wires on the motor but the
servo didn't worked anymore. I'm wondering why... I will try
inverting the wires on the resistors as you said but since the
resistors have equal values I dont see were is the difference.

Thanks.

Archiver

Reversing the wires was for the potentiometer and the motor. When you
reverse the motor then the pot needs to be reversed in order for the
feedback from the pot to match the motor in reverse.
I never had any luck with resistors, so I always used a pot, either the one
in the servo or a small external one that is easy to get to with a jeweler's
screwdriver.
I remember that some servos had a extra resistor in series with the pot, I
don't know why, but you have to watch out for that, as you have to keep that
resistor (or another one of equal value) in series with the pot when you
modify it. Thus if you replace the pot with resistors then you need to
include the extra series resistor as well. Not all servos do this though.

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Original Message

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From: thekoookooo [noparse]/noparse]mailto:[url=http://forums.parallaxinc.com/group/basicstamps/post?postID=ivQe5sgRdCtnK2X95lba3r-LYhxq1GTmtH7HyfhccEvF1umwk2BqCHY1XDLOHOt34iXv_cOE3VFB0zI]thekoookooo@y...[/url
Sent: Saturday, August 24, 2002 10:12 AM
To: basicstamps@yahoogroups.com
Subject: [noparse][[/noparse]basicstamps] Re: BOE REV B PROBLEMS for Earl Bollinger


The thing is that I tried inversing the wires on the motor but the
servo didn't worked anymore. I'm wondering why... I will try
inverting the wires on the resistors as you said but since the
resistors have equal values I dont see were is the difference.

Thanks.


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