[Giovanni Aggiustatutto] creates a DIY weather station to measure rain fall, wind direction ... A mostly 3D printed wind vane is printed with the base attached to a ball bearing and magnet ...

Make a hole in the center by inserting the ... Now you can tell which direction the wind vane is pointing.

Two cameras mounted on tripods with wind vane attachments were positioned about 50 feet apart along an axis of 45 degrees to the direction of the wind. Both cameras were free to pan through 360 ...

while a wind vane measures wind direction. The vane always points in the direction that the wind is coming from and reports an analog voltage signal directly proportional to the azimuth angle.