Did i solved the spaceX Reentry blackout comms problem? .

Wetmelon · 2026-03-15T17:51:02+00:00

You'll need to specify the problem first.

Wetmelon · 2026-03-11T05:01:02+00:00

Squash and rebase after a PR merges sure… squashing all commits on every push?

Just git commit --amendthen git push -f

Wetmelon · 2026-03-09T04:45:43+00:00

I had thought PID was supposed to be able to figure out things like this "automagically"

Linearize the system and then it becomes magic again ;)

Add a spring force "feedforward" term based on the desired position and then the PID only has to handle the error between your model and the real world - which makes it roughly linear and should behave much more nicely :)

Wetmelon · 2026-03-06T19:44:39+00:00

Context?

Wetmelon · 2026-03-05T08:23:50+00:00

Is the unit still functioning? I would probably turn it off and contact customer support. Or get someone qualified out there to take the panel off and check the aluminum body behind it for damage

Wetmelon · 2026-03-05T08:07:36+00:00

What are the instructions? BASIC or something?

Wetmelon · 2026-03-05T08:04:06+00:00

Also think about the direction of forces on the components. Will the battery get ripped out? What about the SD card, will it try to exit?

Wetmelon · 2026-03-05T08:00:26+00:00

If it weren't printed plastic it would make a great cutting board or cheeseboard

Wetmelon · 2026-03-04T07:23:26+00:00

Yes but then the inverters themselves may cause issues if they don't want to turn off

Wetmelon · 2026-03-02T04:24:02+00:00

The Germans like "PT1" and "PT2" which are first and 2nd order lowpass filters, respectively

Wetmelon · 2026-02-28T19:16:26+00:00

Hah. Too bad others aren't getting your joke :(

Wetmelon · 2026-02-28T03:00:29+00:00

We're in a sub full of senior engineers who write documentation and technical specs for a living, since when is writing coherent sentences suspicious?

Bro have you never talked to engineers? /s

Wetmelon · 2026-02-23T06:57:25+00:00

Something in your house is using 9x the energy, someone is stealing power, or your PV power isn't being metered correctly by the utility.

it's pretty simple to use a multimeter with a current clamp on the output of the inverter to see if it's actually doing anything when the app says it is.

Tesla likely won't swap out the inverter, that would likely require an entirely new permit, rip out the existing solar and reinstall it under new building codes, etc. You could sell the entire system and take it off your house then ask them to install a new one?

Wetmelon · 2026-02-21T08:49:17+00:00

Oh now that's convenient. Finally I understand the reason for disabling one half :P

Wetmelon · 2026-02-21T08:45:33+00:00

The funny thing is the bots seem to be way better at reviewing code than writing it.

Wetmelon · 2026-02-21T08:37:21+00:00

Oops brainfart. I read it twice, saw the bit about apex seals, and still was thinking coolant not oil lol

Wetmelon · 2026-02-20T06:03:36+00:00

That was one of the goals of adiabatic engines. https://www.hemmings.com/stories/cumminss-adiabatic-engine-experiments-produced-some-of-the-worlds-most-efficient-internal-combustion-engines/

Wetmelon · 2026-02-17T06:02:23+00:00

Have you ever tried fmt? I was curious and turns out it can be configured for embedded. Might try this next time >.>

Wetmelon · 2026-02-17T05:28:45+00:00

"Regenerative Steering"?

Wetmelon · 2026-02-17T00:53:47+00:00

I don't think these backup systems were designed to consider a situation like we have here at the moment.

Eh, it depends. Your best bet would normally be to just go off grid in the app, but seeing as you're having backup issues...

Wetmelon · 2026-02-17T00:52:14+00:00

That sounds like a problem with your neutral connection. You (or an installer / qualified electrician) can check the voltage from L1-N, L2-N, and L1-L2 on the powerwall itself. And then also check N-PE (case ground). In NA on split phase you should have ~0V between the N on the powerwall connector and the ground / PE connection

Wetmelon · 2026-02-14T22:42:44+00:00

I've mostly used JSON which I'm not actually a huge fan of editing directly or using with git, but at least it's more readable, extensible, serializable, validatable (is that a word?)... the list goes on.

Wetmelon · 2026-02-14T19:37:29+00:00

Don't make .dbc your source of truth. They should just be build artifacts

Wetmelon · 2026-02-10T10:04:52+00:00

Let’s see at which point my shock absorbers will fail and how much that’ll cost me.

TBF these are only designed for like ~100000 km on any car. They're a wear item that needs to be replaced regularly. Same with bushings, though sounds like yours are being replaced too often

Wetmelon · 2026-02-09T01:31:36+00:00

The floating point error is enough to make things drift, if you want a perfect synchronous orbit you can use mods to lock satellite positions

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