[drmeatball]

Cool I'll get it thanks!

Here's a better video. Hands completely off the controller, hex is in Position Hold.

https://www.facebook.com/plj1225/videos/10155028418204456/?l=1413037631953414758

[drmeatball]

I didn't see a scope for altitude, here's the closest I could find.

https://www.facebook.com/plj1225/videos/10155028526499456/?l=5201258071668102753

FC is a Revo Mini with opaque box (also has foam in it (shipped that way)).

[f5soh]

You may need to reset the config after switching to 16.09 and get some default scopes configured, like the Barometer that show altitude, temperature and pressure

[drmeatball]

I'm not sure how to read it, but that looks fairly steady 

[f5soh]

Disabling temperature will give you the altitude trace alone and min/max spikes

[drmeatball]

Is this it?

[f5soh]

You should not have 2m spikes like that.

Take a look at this page, the first scope refers to a good baro / regulator :
https://librepilot.atlassian.net/wiki/display/LPDOC/Altitude+Hold#AltitudeHold-Hardwareissues

[drmeatball]

Do you think my Revo is a candidate for the C9 mod?

[drmeatball]

I think I'll bust out the soldering iron tonight. My other hex has a regular Revo (this one has a mini Revo) and it has none of the BaroSensor.altitude wonkiness going on that this mini has.

Thanks!

[f5soh]

I don't know if you need to remove the capacitor, depends on regulator used.
The Revo Mini design is really simplified and if i recall right only use one regulator for all the board.

Full sized Revo has one regulator for sensors, another one for CPU and one for modem.

[drmeatball]

I'm not sure what to do from here.. should I just order a new revo?

[TheOtherCliff]

If your Revo / Sparky2 has much more than a 1m variance in baro altitude, before ordering another one, I would do the quick and easy thing of removing that particular capacitor and retesting the baro altitude variance.

I have a Sparky2 with this issue.  Reading this got me interested again.  I removed the capacitor and the variance dropped from about 3m to less than 1m.

[drmeatball]

With a 'Rev C' Revo, is there anyway of looking at this to figure out which is the relevant capacitor?

[TheOtherCliff]

Did you look through the bad baro thread?  I would have to look there myself...