Fidget Spinner Anemometer

Watch a video of this working here.

To make your own:

1. Print STL file
2. Cut 2 ping-pong balls in half and stick to fidget spinner arms
3. Mount fidget spinner on printed stand
4. Upload .ino file to arduino
5. Wire up the anemometer to the ThinkerShield as below:

Happy Anemometing!