Microcontroller
ESP32 dual-core WiFi and BLE development board with external antenna support.
Build your own Veetr
The current way to get Veetr hardware is to build it yourself from the open design.
Build
Use the docs, PCB files, firmware, and component list to assemble, test, and improve the system.
Every important part of Veetr is open: firmware, app source, PCB design, enclosure direction, and documentation. That matters because a sailor should be able to understand, repair, and adapt the instrument instead of being locked into a vendor.
The hardware uses standard modules and parts: ESP32, ultrasonic wind sensor, IMU, GPS, RS485 interface, connectors, and a custom breakout PCB. Builders can source components directly, manufacture or order the PCB, print or adapt an enclosure, and flash the firmware locally.
This is still an early hardware project, so building requires patience and comfort with electronics. The docs are the source of truth, and community feedback is part of how the design becomes better.
Hardware
Main parts
9-axis sensor
BNO080/BNO085 IMU for heading, heel, and motion data.
Wind sensor
RS485 ultrasonic wind sensor for apparent wind speed and direction.
GPS module
Multi-GNSS receiver for position and speed over ground.
RS485 interface
TTL converter module for connecting the wind sensor to the ESP32.
Custom PCB
Open source breakout board for reliable wiring and assembly.
Enclosure
A printable or adaptable housing for real-world testing.
Cables and hardware
Connectors, shielded cable, screws, LEDs, and basic assembly parts.
Builder responsibility
Open hardware gives you freedom, but finished hardware you assemble is your responsibility. Check the docs, use the right parts, and verify safety before use on the water.
3D-printed enclosure Model download, removable mount, and assembly guide
PCB and Gerber files Design source, fabrication download, and ordering checklist
Firmware updates Flashing and update instructions