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fix(firmware): fall detection false positives + 4MB flash support (#263, #265)

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Issue #263: Default fall_thresh raised from 2.0 to 15.0 rad/s² — normal
walking produces accelerations of 2.5-5.0 which triggered constant false
"Fall Detected" alerts. Added consecutive-frame requirement (3 frames)
and 5-second cooldown debounce to prevent alert storms.

Issue #265: Added partitions_4mb.csv and sdkconfig.defaults.4mb for
ESP32-S3 boards with 4MB flash (e.g. SuperMini). OTA slots are 1.856MB
each, fitting the ~978KB firmware binary with room to spare.

Co-Authored-By: claude-flow <ruv@ruv.net>
This commit is contained in:
ruv
2026-03-15 09:44:23 -04:00
parent 1d4af7c757
commit 8afd76da20
6 changed files with 79 additions and 7 deletions
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firmware/esp32-csi-node/main/nvs_config.c
+1 -1
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@@ -61,7 +61,7 @@ void nvs_config_load(nvs_config_t *cfg)
#ifdef CONFIG_EDGE_FALL_THRESH
cfg->fall_thresh = (float)CONFIG_EDGE_FALL_THRESH / 1000.0f;
#else
cfg->fall_thresh = 2.0f;
cfg->fall_thresh = 15.0f; /* Default raised from 2.0 — see issue #263. */
#endif
cfg->vital_window = 256;
#ifdef CONFIG_EDGE_VITAL_INTERVAL_MS