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fix(firmware): Kconfig EDGE_FALL_THRESH default 2000→15000 

The nvs_config.c fallback (15.0f) was never reached because
Kconfig always defines CONFIG_EDGE_FALL_THRESH. The Kconfig
default was still 2000 (=2.0 rad/s²), causing false fall alerts
on real WiFi CSI data (7 alerts in 45s).

Fixed to 15000 (=15.0 rad/s²). Verified on real ESP32-S3 hardware
with live WiFi CSI: 0 false fall alerts in 60s / 1300+ frames.

Co-Authored-By: claude-flow <ruv@ruv.net>
This commit is contained in:
ruv 2026-03-15 11:45:32 -04:00
parent 48be117594
commit ca1beba816
1 changed files with 4 additions and 1 deletions
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firmware/esp32-csi-node/main/Kconfig.projbuild
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@ -68,10 +68,13 @@ menu "Edge Intelligence (ADR-039)"
config EDGE_FALL_THRESH
int "Fall detection threshold (x1000)"
default 2000
default 15000
range 100 50000
help
Phase acceleration threshold for fall detection.
Value is divided by 1000 to get rad/s². Default 15000 = 15.0 rad/s².
Raise to reduce false positives in high-traffic environments.
Normal walking produces accelerations of 2-5 rad/s².
Stored as integer; divided by 1000 at runtime.
Default 2000 = 2.0 rad/s^2.