On Thu, 22 Apr 2021 04:44:10 -0000 (UTC), bob prohaska 
declaimed the following:


>The motivating problem is monitoring power supply voltage on a Raspberry
>Pi4 during boot and disk spin-up. I'd like to see the voltage rise, sag
>during boot and spin-up and then stabilize. Depth and duration of the
>sag would be the most essential observation.
>
 If you are willing to change platform, you might find more
candidates...

https://create.arduino.cc/projecthub/Meeker6751/arduino-oscilloscope-6-channel-
674166?ref=tag&ref_id=oscilloscope&offset=0
Unfortunately, that one only goes up to 1kHz -- didn't check for Windows vs
Linux

https://create.arduino.cc/projecthub/zaidatek/zaidascope-arduino-oscilloscope-8
-ch-max-100-khz-c774f5?ref=tag&ref_id=oscilloscope&offset=1
100kHz, but may be too heavily tied to Windows for display purposes

https://create.arduino.cc/projecthub/wayri/arduino-oscilloscope-84b2ac?ref=tag&
ref_id=oscilloscope&offset=5
2 channel but with its own display

https://www.amazon.com/DSO138-Oscilloscope-Digital-Handheld-Version/dp/B088FWHK
ZG/ref=asc_df_B088FWHKZG/?tag=hyprod-20&linkCode=df0&hvadid=477379495345&hvpos=
&hvnetw=g&hvrand=7521356089507600023&hvpone=&hvptwo=&hvqmt=&hvdev=c&hvdvcmdl=&h
vlocint=&hvlocphy=
9017241&hvtargid=pla-1040797794422&psc=1
single channel


--
 Wulfraed                 Dennis Lee Bieber         AF6VN
 wlfraed@ix.netcom.com    http://wlfraed.microdiversity.freeddns.org/

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