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ESP32-S3 CSI Firmware v0.2.0

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@ruvnet ruvnet released this 03 Mar 00:08
· 3 commits to main since this release
v0.2.0-esp32
e0fe10b

ESP32-S3 CSI Firmware v0.2.0

Pre-built firmware binaries for the ESP32-S3 CSI sensing pipeline.
Built from main with ESP-IDF v5.2 via Docker.

What's New (since v0.1.0)

  • MAC address filtering — filter CSI frames by transmitter MAC to prevent signal mixing in multi-AP environments (#101)
  • TDM sensing protocol — time-division multiplexing for multistatic mesh deployments (ADR-029/031)
  • Channel hopping — configurable multi-channel scanning
  • NVS runtime config — configure MAC filter, TDM slots, channel list, and dwell time without reflashing

What's Included

File Size Flash Address Description
bootloader.bin 21 KB 0x0 ESP32-S3 second-stage bootloader
partition-table.bin 3 KB 0x8000 Flash partition layout
esp32-csi-node.bin 789 KB 0x10000 CSI firmware with MAC filter + TDM
provision.py — — NVS provisioning script (WiFi + network + MAC filter config)

Quick Start (No Build Required)

1. Install esptool:

pip install esptool

2. Flash all three binaries:

python -m esptool --chip esp32s3 --port COM7 --baud 460800 \
  --before default-reset --after hard-reset \
  write-flash --flash-mode dio --flash-freq 80m --flash-size 4MB \
  0x0 bootloader.bin \
  0x8000 partition-table.bin \
  0x10000 esp32-csi-node.bin

Replace COM7 with your serial port (/dev/ttyUSB0 on Linux, /dev/cu.usbserial-* on macOS).

3. Provision WiFi credentials (no rebuild needed):

python provision.py --port COM7 \
  --ssid "YourWiFi" --password "YourPassword" \
  --target-ip 192.168.1.20 --target-port 5005

4. Run the aggregator:

# From the wifi-densepose repo (Rust)
cargo run -p wifi-densepose-sensing-server -- --http-port 3000 --source esp32

# Or Docker
docker run -p 3000:3000 -p 5005:5005/udp ruvnet/wifi-densepose:latest --source esp32

MAC Address Filtering (New)

Filter CSI to a single AP to prevent signal mixing:

# Via provision.py (runtime, no reflash)
python provision.py --port COM7 --filter-mac "AA:BB:CC:DD:EE:FF"

# Or compile-time via Kconfig
# Set CONFIG_CSI_FILTER_MAC="AA:BB:CC:DD:EE:FF" in sdkconfig.defaults

TDM Mesh Setup (New)

For multistatic mesh with 3+ nodes:

# Node 0
python provision.py --port COM7 --ssid "WiFi" --password "pass" \
  --target-ip 192.168.1.20 --tdm-slot 0 --tdm-total 3

# Node 1
python provision.py --port COM8 --tdm-slot 1 --tdm-total 3

# Node 2
python provision.py --port COM9 --tdm-slot 2 --tdm-total 3

Hardware Compatibility

Board Status Notes
ESP32-S3-DevKitC-1 Verified Tested with CP210x USB-UART
ESP32-S3-WROOM-1 Expected Same SoC
ESP32-S3-MINI-1 Expected Same SoC
ESP32 (classic) Rebuild required idf.py set-target esp32

Firmware Features

  • WiFi STA + promiscuous mode for CSI capture
  • ADR-018 binary serialization with 20-byte header + raw I/Q payload
  • UDP streaming to configurable aggregator
  • NEW: MAC address filtering (compile-time or runtime via NVS)
  • NEW: TDM time-slot protocol for multistatic mesh (ADR-029/031)
  • NEW: Channel hopping with configurable dwell time
  • NVS runtime config — SSID, password, target IP/port, node ID, MAC filter, TDM config
  • ~20 Hz CSI frame rate (LLTF + HT-LTF + STBC HT-LTF2)
  • 64-128 subcarriers per frame depending on bandwidth
  • Automatic WiFi reconnection (up to 10 retries)
Assets 6
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