Boe Bot Strait Line

Archiver

How Can i Get My Boe bot to go in a strait line? it always seems to
goto one side and as the bateries get lower its totaly different so i
cant just modify the servo pulse..

Any Help Would Be Great.

Archiver

There are two possible answers I know of:

1) "calibrate" the servos and use two different values for the right PULSOUT
vs the left PULSOUT. This is what I do and it works pretty good, but it
still won't be 100% straight.

2) You could affix some sort of sensor to the wheel to measure its travel
and do closed loop control. This would be most like what a "real" robot
would do, but would also be the most work.

Regards,

Al Williams
AWC
*Floating point math for the Stamp, PIC, SX, or any microcontroller:
http://www.al-williams.com/awce/pak1.htm




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Original Message

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> From: toad1611@y... [noparse]/noparse]mailto:[url=http://forums.parallaxinc.com/group/basicstamps/post?postID=yNSva7GJdCT8iof1EKGsIKvUdYx6ina1WnehWOIS3FVGainD73RYsqk63bIu_2892iVb5vuhgz8Gkg]toad1611@y...[/url
> Sent: Thursday, June 29, 2000 6:29 PM
> To: basicstamps@egroups.com
> Subject: [noparse][[/noparse]basicstamps] Boe Bot Strait Line
>
>
> How Can i Get My Boe bot to go in a strait line? it always seems to
> goto one side and as the bateries get lower its totaly different so i
> cant just modify the servo pulse..
>
> Any Help Would Be Great.
>
>
>
>