hobby servo motors

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Deion Adel
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hobby servo motors

Post by Deion Adel » Wed Jan 12, 2022 9:49 pm

Hello, I'm looking at those common Tower Pro micro servos. SG90, for example. On stepper motor controllers, you can turn off the stepper when you're done with the movement, this lowers wasted power since the stepper coils can de-energize.

That does not appear to be possible with servo motors - if they're powered, the coils of the servo are energized. They're typically powered from the Arduino itself. So to conserve power, you might need to use a relay to power off the 5V line when not in use?

Thanks.

dyarker
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Re: hobby servo motors

Post by dyarker » Thu Jan 13, 2022 6:15 am

They're typically powered from the Arduino itself.
No. The Arduino provides the PWM signal. Though the plug for the servo may be on the same board as the Arduino.

Is anything "pushing on the mechanical load? With power off the servo can not hold a position.

When power is reapplied, the servo may jump to center till it decodes the next PWM.

Other than those 2 limitations you can turn off power to servo, just keep Arduino powered up.

Cheers,
Dale Y

Caseyday
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Re: hobby servo motors

Post by Caseyday » Thu Jan 13, 2022 11:59 pm

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seanbean1990
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Re: hobby servo motors

Post by seanbean1990 » Mon Jan 24, 2022 6:01 am

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Angelie
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Re: hobby servo motors

Post by Angelie » Thu Jan 27, 2022 10:13 pm

And my hobby is reading best travel blogs!

dyarker
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Re: hobby servo motors

Post by dyarker » Thu Jan 27, 2022 10:56 pm

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Dale Y

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