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Topic: Computer screen flickers while servo motors are moving (Read 717 times) previous topic - next topic

SpaceOne

My computer screen flickers while servo motors are moving, the servo motors are powered by an external power supply the grounds are connected.

I am thinking that there is some type of feedback from the arduino going through the USB.

PaulS

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My computer screen flickers while servo motors are moving

What kind of servo motors?

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I am thinking that there is some type of feedback from the arduino going through the USB.

Maybe. Why is the Arduino connected to the PC?

SpaceOne

I got connected 6 Hitec servos 2x HS-805BB, and 4x HS-322HD. The Arduino is connected to a PC so it can receive servos commands

zoomkat

You probably need to better explain how the external power supply is connected to the servos, the details of the power supply, and the arduino connections. That many servos will take a large power supply.
Consider the daffodil. And while you're doing that, I'll be over here, looking through your stuff.   8)

SpaceOne

I used a PC 400 Watts ATX power supply, and it supply's ~5v to the servos

zoomkat

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I used a PC 400 Watts ATX power supply, and it supply's ~5v to the servos


ok
Consider the daffodil. And while you're doing that, I'll be over here, looking through your stuff.   8)

mmcp42

if it's a good old VDU, not a plasma/LED/laptop, maybe the magnetic feld from the motors is upsetting the electrons?
there are only 10 types of people
them that understands binary
and them that doesn't

Grumpy_Mike

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I am thinking that there is some type of feedback from the arduino going through the USB.

Yes it is technically called noise and it comes from the motors in your servos.

You need better decoupling on your supply:-
http://www.thebox.myzen.co.uk/Tutorial/De-coupling.html

SpaceOne

Is this a problem? Can this damage the PC or Arduino if I continue to use it?

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