The Lua app page painted itself 0x0E1216 while the rest of the firmware
paints pure black (COLOR_BG), so every app read as a lighter panel floating
over the UI. The page is now black and wada.ui.colors gains `panel` for the
raised surface an app draws on top of it -- the compass dial uses it, so the
instrument stands out instead of the page doing it.
Rotate/flip are gone from the user's side. They existed because the QMC6309's
axis orientation on the M9 is undocumented, which is not the user's problem to
solve by trial and error. `A` now does the whole job: whether the heading runs
clockwise or anticlockwise follows from which way the sensor's Z axis faces,
and that shows in the sign of the vertical field -- Earth's field dips down
north of the magnetic equator and up south of it -- so with a position (a fix,
or the node's last known one) the app reads the handedness off the sensor and
the press only has to set the offset. `F` stays as the fallback for a flat
field or no position at all.
Layout: stats column on the left, dial on the right (its status line above
it, the hint centred along the bottom).
The host harness now tumbles the simulated device during calibration rather
than spinning it flat -- min/max on an axis that never moves subtracts the
true field along it, which is precisely the case the handedness check has to
detect and refuse, and the flat mock was hiding it.
Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
