feat(bmm150): heading, tilt compensation, and hard-iron calibration - #313
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Add compass heading with optional accel-sensor tilt fusion, YAML axis remapping, declination, and a calibrate action that only persists offsets after per-axis delta checks.
…bration If accel IDs are set but unpublished, keep heading unknown and log enter/leave. Stamp calibration with version, mag axes, and uT scale so YAML remaps cannot reload old offsets.
…ration usable Re-init after five consecutive read/overflow failures. Default to yaw-only calibration with a relaxed Z gate, add heading_offset, and let the test accel templates actually publish.
Check bus_error_ before chip_id so boot-time and runtime NAKs do not mark_failed. Apply yaw Z offset when delta exceeds the Z gate, and always reset soft-iron Z scale to 1 when disabled.
A missing chip is indistinguishable from a dead bus (both NAK). Keep retrying but do not spam the log every update_interval.
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Summary
bmm150.calibrate; persist only if each axis delta > 20 uT;on_calibration_finishedwith success boolTest plan
esphome compile tests/components/bmm150/test.esp32-idf.yaml(heading + accel IDs + calibrate action)git diffconfirmsbmm150_lib.c/handbmm150_defs.huntouchedMade with Cursor