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Servo Calibration — Parallax Forums

Servo Calibration

PeterPeter Posts: 9
edited 2005-01-05 01:35 in Robotics
How do you center servos that have no hole for the potometer. I just got some new ones and they have no hole for them to be centered. They need to be centered but no hole to do so.

Post Edited By Moderator (Jon Williams) : 1/5/2005 12:58:21 AM GMT

Comments

  • Jon WilliamsJon Williams Posts: 6,491
    edited 2005-01-05 00:59
    You'd have to crack it open and that's probably not a good idea. Instead, write a bit of code that lets you change the centering value easily so that you can calibrate your code to what the servo will respond do. Ideally, the centering pulse would be 1.5 ms -- this would be a PULSOUT value of 750 with a typical servo.

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    Jon Williams
    Applications Engineer, Parallax
    Dallas, TX· USA
  • PeterPeter Posts: 9
    edited 2005-01-05 01:19
    But that won't work. The sevos with any code make a little motion but will stop and make a loud wining noise and I personally hate that. Also I do not want to crack the servo open either.
  • Jon WilliamsJon Williams Posts: 6,491
    edited 2005-01-05 01:35
    Are you not writing the code that will control the servos? If you are, you can certainly fine-tune your program to operate with the centering (stop) postion of the servos you've got.

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    Jon Williams
    Applications Engineer, Parallax
    Dallas, TX· USA
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