![](https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEh9ZpzYr4bPoOUjy9f9hydfYZoi5D7jNYDJnPei-O9YOqxxBkWoglWb0108a5B8NoaGTIm42zxR_ZEjbS1_WikXPEQJNf8AQUpfR7YcOvVuNpHoD0c8oeYiQbXJIFDoZLDZsyRu/s320/baka.jpg)
I have a pet hamster named Baka. Baka spends most of his free time running on a hamster wheel. I put together a device to track the hamster wheel's rotation. It uses a Raspberry Pi 2, a magnetic sensor, and Google Analytics. Here is a webpage with live coverage of Baka's running: https://sites.google.com/site/bakaanalytics/. He tends to run about 6 kilometers per day (13,000 rotations) and sticks to a strict schedule of running between 10pm and 6am.