# ESP32 Hacking Tasks

**Last Updated:** 2026-02-04

## Current Sprint: v0.5 - BLE Scanning

### P0 - Critical
- [ ] Enable Bluetooth alongside WiFi
- [ ] Periodic BLE advertisement scanning

### P1 - Important
- [ ] Report device MAC, RSSI, name via UDP
- [ ] Pi-side BLE device tracking

### P2 - Normal
- [ ] OTA update remaining fleet (muddy-storm, hollow-acorn) via USB
- [ ] Test rollback (flash bad firmware, verify auto-revert)

### P3 - Low
- [ ] Document esp-crab dual-antenna capabilities
- [ ] Document esp-radar console features

## Completed: v0.4 - Adaptive Sampling

- [x] On-device CSI wander calculation (coefficient of variation)
- [x] Adaptive rate: 10 pkt/s idle (3s holdoff) → 100 pkt/s on motion
- [x] EVENT notification to Pi on rate change
- [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
- [x] OTA deployed and verified on amber-maple

## Completed: v0.3 - OTA Updates

- [x] Dual OTA partition table (`partitions.csv`)
- [x] 4MB flash, custom partitions, rollback in sdkconfig.defaults
- [x] Firmware: OTA command, ota_task, LED_OTA, rollback validation
- [x] Firmware: version in STATUS reply
- [x] Pi-side `esp-ota` tool (HTTP server + OTA orchestration)
- [x] `esp-fleet ota` subcommand (sequential fleet update)
- [x] Build and USB-flash amber-maple (partition table change)
- [x] End-to-end OTA test verified
- [x] Regenerate sdkconfig.sample
- [x] Update CHEATSHEET.md, USAGE.md

## Completed: v0.2 - Remote Management

- [x] Firmware: UDP command listener (port 5501)
- [x] Firmware: LED status indicator (GPIO2)
- [x] Firmware: NVS config persistence (rate, tx_power)
- [x] Firmware: REBOOT, IDENTIFY, STATUS commands
- [x] Firmware: RATE command (10-100 Hz, restarts ping)
- [x] Firmware: POWER command (2-20 dBm)
- [x] Pi-side: `esp-cmd` CLI tool
- [x] Pi-side: `esp-fleet` fleet management tool
- [x] mDNS hostname, watchdog, human-readable uptime

## Completed: v0.1 - Documentation

- [x] Copy firmware sources to project
- [x] Document current firmware and settings
- [x] Document build & flash workflow
- [x] Create .gitignore for build artifacts
- [x] Test building firmware from this repo
- [x] Document CSI config options

## Notes

- Adaptive threshold varies by environment; 0.001-0.01 is a good starting range
- NVS keys: `send_rate`, `tx_power`, `adaptive`, `threshold`
- EVENT packets sent on CSI UDP port when adaptive rate changes
- OTA download ~904 KB on LAN takes ~3-5s, well under 30s watchdog