Firmware (app_main.c): - UDP command listener on port 5501 (configurable via Kconfig) - Commands: REBOOT, IDENTIFY, STATUS, RATE, POWER - LED status indicator on GPIO2 (off/slow/fast blink/solid) - NVS persistence for send_rate and tx_power settings - Refactored ping to support stop/restart for dynamic rate changes - TX power control via esp_wifi_set_max_tx_power() Pi-side tooling: - tools/esp-cmd: standalone Python3 UDP client for device management Tested on amber-maple (ESP32 v3.1) with ESP-IDF v5.5.2.
1.9 KiB
1.9 KiB
ESP32 Hacking Roadmap
v0.1 - Documentation & Setup [DONE]
- Copy firmware sources from esp-csi
- Document current firmware behavior
- Document CSI data format
- Document build & flash process
- List firmware modification ideas with priorities
- Verify build from repo (ESP-IDF v5.5.2, aarch64)
v0.2 - Remote Management [IN PROGRESS]
- Add UDP command listener on ESP32 (port 5501)
- Implement REBOOT command
- Implement IDENTIFY command (LED solid 5s)
- Implement STATUS command (uptime, heap, RSSI, tx_power, rate)
- Implement RATE command (change ping Hz, NVS persist)
- Implement POWER command (TX power dBm, NVS persist)
- Add LED status indicator (off/slow blink/fast blink/solid)
- NVS persistence for rate and tx_power settings
- Pi-side
esp-cmdCLI tool - Build and flash test on device
- Update CHEATSHEET.md with new commands
v0.3 - OTA Updates
- Modify partition table for dual OTA
- Add OTA update handler in firmware
- HTTP firmware server on Pi
- Pi-side flash script (select device, push firmware)
- Rollback on failed update
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
v0.5 - BLE Scanning
- Enable Bluetooth alongside WiFi
- Periodic BLE advertisement scanning
- Report device MAC, RSSI, name via UDP
- Pi-side BLE device tracking
v1.0 - Production Firmware
- mDNS auto-discovery
- Watchdog + auto-recovery
- On-device CSI processing (send metrics, not raw)
- Configuration via UDP (WiFi SSID, target IP)
- Comprehensive error handling
Future
- ESP-NOW mesh (ESP32-to-ESP32 CSI)
- Multi-channel scanning
- External sensor support (PIR, temp/humidity via GPIO)
- Power management for battery operation