[chbot] Chchrobotics Digest, Vol 141, Issue 4
list57 at top.geek.nz
Thu Jun 27 07:43:01 BST 2019
On Wed 26 Jun 2019 20:15:14 NZST +1200, Trevor Wignall wrote:
> The LEDs themselves should not be causing interference.
Any square wave along a track radiates, and I'd expect that to include
the tracks to the LED, the pins (if any), and the LED itself. Perhaps
the regulator output is smoothed with RLC filters, but if it's a cheap
purpose-made converter perhaps that's not the case. Why not save on some
components. Its EMC behaviour is obviously not that good... Check with a
scope before assuming.
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