### Wind Speed Measuring
[[File:Porch-anemometer.jpg|border|thumb|Anemometer data logger prototype on porch]]
We are using a Vortex wind sensor. One revolution per second equals 2.5 mph. Since our anemometer has a relay (a mechanical switch), it creates a _switch bounce_. Therefore, we need a debounce circuit.
[[File:WindSpeed Porch Oct14.jpg|border|thumb]]