[Paul Asselin] was curious to see how long he spent showering in an effort to reduce energy and resource consumption. Paul had a bunch of parts laying around, an Arduino, Ethernet Shield, Real-time Clock module, and an RFID reader. He decided to make a system that allows you to “check in” when you shower and upload the data for analysis to ThingSpeak.
I wanted to know how much time I was spending under the shower each day, especially in these environmentally conscious times. The benefits of that are that I can perhaps save some money on the water bills and also study the effect of temperature on my showering time.
[via Paul Asselin]