[TriEmbed] Nucleo 32 board cautionary tale

[Pete Soper]

I just wasted a good chunk of a day chasing weird sensor behavior with a 
Nucleo STM32F031K6 board. After seeing three flavors of other 
misbehavior on top of the little detail of the sensor giving goofy 
measurements it occurred to me to look at the sensor chip power supply 
fed from the 3.3v pin of the dev board. What I found is shown below. The 
noise spikes are almost 5V. Swapping in another of the boards solved the 
problem.

-Pete

-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://mail.triembed.org/pipermail/triembed_triembed.org/attachments/20201002/fafe09ee/attachment.htm>
-------------- next part --------------
A non-text attachment was scrubbed...
Name: cdgmajnlekkcfldg.png
Type: image/png
Size: 56191 bytes
Desc: not available
URL: <http://mail.triembed.org/pipermail/triembed_triembed.org/attachments/20201002/fafe09ee/attachment.png>