Arduino dock with Omega2 emitting high pitched noise
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So, I just got my packing from Onion yesterday and testing out one of my Omega2+'s in the Arduino Dock that I have and I noticed right away that it is emitting a very high pitched consistent noise. I tried the dock with both of the Omega2+'s that I have and always got the noise. I not get the noise with either of them in the Power Dock that I have. I'm assuming that this isn't normal. Suggestions? Here's a video file to show you what's going on. I'm powered the dock with wall wart style power supply to a USB-micro connection that I tend to use for a Raspberry Pi. Nothing else is connected.
https://www.dropbox.com/s/fb7tcnkd7w9qx11/2017-01-13 12.16.00.mov?dl=0
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@william-chrapcynski Coil-whine is nothing to get worried about, it doesn't mean there's anything broken or wrong.
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@WereCatf It is very annoying, though, even if it's still functioning properly.
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@william-chrapcynski That it can be, but there's not much you can do aside from replacing the coil with a less noisy one or using something like e.g. https://www.silmid.com/adhesives/silicone-adhesives/dow-corning-744-rtv-white-90ml-tube/ to try and dampen the sound a bit.
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I get the same thing when I connect mine to my official RPI power adapter.
When it's powered from my PC USB port, I don't get the whine.
Weird...
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I have the same problem: every single time. Even when I power it using the USB from my pc. It's so loud it's not really acceptable. I guess my unit is defective?
