Buzzer is already disabled by default!
Yep, I moved Stand code after the error/sleep detection, so It would be ignored. Fixed and updated builds.
Tugo, the -+20°C jumps is either that tip, very slow reaction PID or something wrong with that board.
What I say about temperature is true.
Are you really measuring +-20°C changes?
I doubt it. Although it goes up and down, the temperature will be pretty stable due the thermal mass of the tip.
And that's what happens with all these firmwares, although they don't show you.
The only difference is that real measured temperature is shown here.
I dont know what capacitor are you taking about, but you can try removing it.
As you see other quicko/Ksger work correctly (ignoring the recent memory problem), only the PID needing some tweaking.
In any case it's a rare condition happening in that board,
or with that tip, which I can't magically see or debug.
You need a scope to see the waveforms.
Or at least debug it with swv, making a real time plot of the sensor data (like that picture I posted yesterday)
Right now the only thing I can think of is disabling the filter resetting, so it filters everything, no matter the difference.
But it'll add delay, causing over/undershoot for most tips.
Test this. Although I doubt it does better.