Shop OBEX P1 Docs P2 Docs Learn Events
................. — Parallax Forums

.................

agfaagfa Posts: 295
edited 2006-12-03 21:52 in BASIC Stamp
............................

Post Edited (agfa) : 2/13/2007 2:32:07 PM GMT

Comments

  • FranklinFranklin Posts: 4,747
    edited 2006-12-03 06:13
    Here www.parallax.com/detail.asp?product_id=900-00008

    ▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔
    - Stephen
  • FranklinFranklin Posts: 4,747
    edited 2006-12-03 18:23
    ! to 2 ms pulse wuth a 20 ms duration is what the spec is. This will vary slightly with each servo as they were designed to provide controlled movement not absolute positioning.

    ▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔
    - Stephen
  • allanlane5allanlane5 Posts: 3,815
    edited 2006-12-03 21:52
    More specifically: The control signal is normally low. A 1 mSec pulse, repeated every 20 mSec, will drive the servo full left. A 2 mSec pulse, repeated every 20 mSec, will drive the servo full right.

    The 'repetition' rate can be anywhere from 20 to 50 mSec, so there's lots of flexibility there. If you want the servo to 'hold' a particular position, you MUST repeat the pulse. After 50 mSec of no pulse seen, the servo 'relaxes'.
Sign In or Register to comment.