Windspeed and direction sensor

Updated: 5 Feb 2018: Uploaded the beta of Version 2.0, with a new-clip together part set and revised document file. I recommend it over the original.

Updated: 08 Feb 2018: removed original files, please use the V2 files.

This is a set of parts to create a wind direction and speed sensor suitable for use as a hobby or club (sailing/flying) weather station in conjunction with a controller and either local display or web-connect software.

There are no mechanical switches in the design. Sensing is done by magnetic detection via Hall sensors, so the bearings (skateboard/fidget spinner type) are the only parts subject to wear. Note that the quality of the bearings is paramount if you want to achieve any sort of accuracy or linearity in the wind speed readings! The wind direction sensor is capable of very high accuracy/repeatability within a few degrees if well aligned.

A handful of additional electronic parts and the bearings are required to complete the project. Parts may b