Servo whine ?


 
I have the same problem and am using a Raspberry Pi 3B+. If you are using the same Raspberry Pi 3B+, perhaps the root cause is RF noise. Let me know type of Raspberry Pi do you have.
 
Dont want digital servo


Its never happy where it is....ever....resolution is too small....a fraction of degree.

Go back to post 13
Go to their website and read the faq on these cheap micro servos
 
I put a 100uF/10v capacitor in and it did not make a difference.

In this this thread
WBegg suggested I use the Vorpal Robotics servos from Tower Pro. They are certainly pricey, but I do want this to work reliably. See below:

WBegg said:
MG90S servo's are notorious for being pirated/faked. You probably do not have the genuine article. I would suggest the MG90 servo sold by Vorpal Robotics. It's made by Tower Pro, and I have never had any issues with them. Same form factor as the MG90S. Great servo and reliable.

vorpal-robotics-store.myshopify.com

Vorpal Brand MG90 Micro Servo (Made by Tower Pro)

We worked directly with Tower Pro to create the Vorpal MG90 servo. You get genuine Tower Pro quality in a servo optimized for our robotics projects. We also test every servo ourselves and reject defective servos (about 2%), so what you're getting is higher quality than even what comes from the...
vorpal-robotics-store.myshopify.com
Click to expand...
 
Looks like my Tower Pro MG90S was original. See the attached photos.
 

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I ordered 10 servos at a time directly from TowerPro a few years ago. 2 were non-functional. I think TowerPro may even be outsourcing their Servos. I can swear by the Vorpal onces, though.
 
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