Open-source sailboat racing data logger and analytics platform.
sailframes.com | github.com/sailframes | Apache 2.0 License
SailFrames is a self-contained, waterproof data acquisition device for competitive sailboat racing. It captures high-precision GPS tracks, wind speed and direction, boat motion (heel/pitch/heading), barometric pressure, and cockpit video — all synchronized with GPS timestamps. Data syncs to AWS after each session for web-based race analysis and replay.
sailframes/core/
├── edge-s/ # Raspberry Pi edge device
│ ├── services/ # Sensor acquisition (GPS, IMU, wind, pressure, camera)
│ ├── scripts/ # Install, start, stop, Wi-Fi mode
│ ├── config/ # Device configuration
│ └── tests/ # Sensor connectivity tests
├── edge-e/ # ESP32 edge device
│ ├── hardware/ # KiCad PCB designs
│ └── firmware/ # ESP32 Arduino firmware
├── web/ # Dashboard web application
│ ├── api/ # Backend API
│ └── frontend/ # React frontend
├── lambda/ # AWS Lambda functions
├── processing/ # Post-race data processing
├── infrastructure/ # AWS CDK/Terraform
├── scripts/ # Utility scripts
├── services/ # Systemd service definitions
├── config/ # Shared configuration
└── tests/ # Integration tests
| Component | Part | Interface |
|---|---|---|
| Compute | Raspberry Pi 5 | — |
| GPS | u-blox ZED-F9P | USB |
| Wind | Calypso Ultrasonic Mini | BLE 5.1 |
| IMU | BNO085 (GY-BNO08X) | I2C @ 0x4A |
| Pressure | DPS310 | I2C @ 0x77 |
| Camera | Pi Camera 3 Wide | CSI |
| Display | 1602 LCD + PCF8574T | I2C @ 0x27 |
| Enclosure | IP67 sealed | Gore-Tex vent |
# Clone the repo
git clone https://github.com/sailframes/core.git
cd core
# Run the installer on Raspberry Pi
sudo bash edge-s/scripts/install.sh
# Test all sensors
python3 edge-s/tests/test_gps.py
python3 edge-s/tests/test_imu.py
python3 edge-s/tests/test_pressure.py
python3 edge-s/tests/test_wind.py
python3 edge-s/tests/test_camera.py
# Start all services
sudo bash edge-s/scripts/start.sh
# Check status
sudo systemctl status sailframes-*All sensor data is timestamped with GPS time (UTC):
/mnt/sailframes-data/
├── 2026-03-15/
│ ├── gps/
│ │ └── track_20260315_140000.csv
│ ├── imu/
│ │ └── imu_20260315_140000.csv
│ ├── pressure/
│ │ └── pressure_20260315_140000.csv
│ ├── wind/
│ │ └── wind_20260315_140000.csv
│ └── video/
│ └── cockpit_20260315_140000.mp4
- 6 devices deployed
- Sonar 23 and J/80 class boats
- Boston Harbor, Massachusetts
Apache 2.0