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feat: Add v0.4 adaptive sampling — wander detection, auto rate control

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On-device CSI wander calculation (coefficient of variation over 50-packet
window). Rate drops to 10 Hz when idle, jumps to 100 Hz on motion with
3s holdoff. EVENT notifications sent to Pi on rate changes. New commands:
ADAPTIVE ON/OFF, THRESHOLD. RATE command disables adaptive mode.
All settings NVS-persisted.
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2026-02-04 16:34:19 +01:00
parent 2f90a099b7
commit c922e05266
4 changed files with 191 additions and 23 deletions
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ROADMAP.md
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@@ -34,11 +34,15 @@
- [x] USB-flash first device (partition table change)
- [x] End-to-end OTA test
## v0.4 - Adaptive Sampling
- [ ] On-device wander calculation (simplified)
- [ ] Reduce to 10 pkt/s when idle
- [ ] Increase to 100 pkt/s on motion detection
- [ ] Rate change notification to Pi
## v0.4 - Adaptive Sampling [DONE]
- [x] On-device CSI wander calculation (coefficient of variation)
- [x] Reduce to 10 pkt/s when idle (3s holdoff)
- [x] Increase to 100 pkt/s on motion detection
- [x] Rate change EVENT notification to Pi via UDP
- [x] ADAPTIVE ON/OFF command (NVS persisted)
- [x] THRESHOLD command for tuning sensitivity (NVS persisted)
- [x] RATE command disables adaptive mode
- [x] adaptive/motion fields in STATUS reply
## v0.5 - BLE Scanning
- [ ] Enable Bluetooth alongside WiFi