First of all, a few important notes that you should definitely pay attention to.
openHardware gitlab.com
- Measurement of wind direction and wind speed
- Robust mechanics
- Weight <= 250g
- Small enough to be grown on a 6.60m sailboat
- Replacement for a Windex
- Weatherproof and UV-stable
- Visibility at night thanks to reflectors on the bottom
- No cable laying for sensor signals
- Pure digital transmission and signal processing
- 12V power supply via toplight (50mA, 0.5W)
- Transfer of data via WLAN (ESP8266)
- Update rate: 1-2 measurements per second
- No installation instrument required
- Display in OpenPlotter via laptop, mobile phone or tablet
- No software installation required (displayed on the website in the browser)
- Android app available
- Support of common protocols such as NMEA 0183 (serial, TCP / IP)
- More than 30 systems have already been built and in use
https://www.segeln-forum.de/thread/67401-windsensor-diy/?pageNo=1
Fig: Wind sensor concept with Raspi and M5Stack
Fig: Mechanical functional principle
Android app (boat mode and weather station mode)
Fig: Individual parts of the wind sensor