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Re: [Electronics_101] Re: Servo Motor

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  • varma dinesh
    Thanks Andy for your input. ________________________________ From: Andrewdavid.mathison To: Electronics_101@yahoogroups.com
    Message 1 of 10 , Jun 29, 2010
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      Thanks Andy for your input.




      ________________________________
      From: Andrewdavid.mathison <andrewdavid.mathison@...>
      To: Electronics_101@yahoogroups.com
      Sent: Tue, 29 June, 2010 2:11:42 AM
      Subject: [Electronics_101] Re: Servo Motor

       
      Hi,
      to drive a model servo motor, you just send the motor electronics a pulse. A servo pulse of 1.5 ms width will set the servo to its "neutral" position, or 90°. For example a servo pulse of 1.25 ms could set the servo to 0° and a pulse of 1.75 ms could set the servo to 180°. The physical limits and timings of the servo hardware varies between brands and models, but a general servo's angular motion will travel somewhere in the range of 180° - 210° and the neutral position is almost always at 1.5 ms.To move in one direction you reduced the length of the pulse, to move in the other you increased the length.
      How often the pulse needs to be sent has also to be decided.
      Send bigger changes of position and it will move faster......simple!!
      Look at the web here for example:-
      http://en.wikipedia.org/wiki/Servomechanism
      Regards
      Andy

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