"Chispa" from Oviedo (SPAIN) grateful the Internet of Animals (iOA), to track my activity progress on hamster spinning wheel.
You do not think I run about 16 Km for 4,5 hours every night ???.
Look at here!!!
This is my homemade digital anemometer. It is made of cups rotating with a magnet triggering a reed switch. The wires are connected to an Arduino Uno that calculates the time between consecutive pulses (after reed switch debouncing by my arduino software)