Continuous Rotation Servo
Domino
Posts: 2
Hi,
I'm new in this Forum. I have·a Continuous Rotation Servo·and a·Parallax Servo Controller (#28023) - Rev B.
Is it possible to change the rotation speed of the servo with this board. Till now, I only can change the direction of the servo.
Dominik···· ·
I'm new in this Forum. I have·a Continuous Rotation Servo·and a·Parallax Servo Controller (#28023) - Rev B.
Is it possible to change the rotation speed of the servo with this board. Till now, I only can change the direction of the servo.
Dominik···· ·
Comments
On, and this 'speed curve' probably varies quite a lot between different servo's.
I think, this servos are not the best choice for a mobile platform. Because·I want to control the drive!
·Dominik
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- Stephen
In all fairness, wheel-slip makes dead-reckoning by speed not very accurate, no matter WHAT motor you put on a wheel.
As for positioning, I've used the encoders on the Boe-Bot and they're accurate to about 10 brads per encoder pulse so you will need to make course corrections all the time or put up with the inaccuracy. You can get more accurate encoders (the wheels I have only generate 16 EPs per revolution) but then you risk the chance of missing a pulse if your controller is busy doing other things. Some inventive folks have used an optical mouse sensor to detect and calculate changes in direction. Perhaps you could search these forums for some more info on how to accomplish that. I've never done that myself, tbh.
Gr,
Mightor
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