How Close is too close?

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Koep
Posts: 10
Joined: Sat Sep 12, 2020 10:24 am

How Close is too close?

Post by Koep »

Hi all!

I helped my friend to build a small cnc router with blue pills and IBT-2 boards as servo drives.

Otherwise simple project is suffering random movement errors due to electrical noise.

Attached pic shows control enclosure with cover removed.
I have 3 blue pills and a pokeys board spaced app 1" / 30mm apart.
Each blue pill is running ~12KHz PWM with complementary output enabled.

The question is: Is there noticeable possibility of crosstalk/ bluepills disturbing each other?

Rgds,
Tapio
Attachments
3bluepills.png
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