View Single Post
  #7   Spotlight this post!  
Unread 06-02-2006, 12:28
Keith Watson Keith Watson is offline
Registered User
FRC #0957 (WATSON)
Team Role: Mentor
 
Join Date: Feb 2006
Rookie Year: 2006
Location: Wilsonville, OR
Posts: 112
Keith Watson is just really niceKeith Watson is just really niceKeith Watson is just really niceKeith Watson is just really nice
Re: servo output accuracy

Servo accuracy includes 2 other things not mentioned.

One is "centering", or how well the output wheel exactly goes to the commanded position. It can vary between brands and between models in a given brand. Digital servos have much better centering accuracy.

The other is the range of motion of the output wheel versus the PWM range IFI uses of 256. Servos can have ranges in degrees of 60, 75, 90, 120, 180, etc. So one PWM step can give a different angle depending on the servo.
__________________
Keith Watson - Professional Software Engineer
No relation to "Kevin" Watson, who created the camera tracking code.