A cyclocomputer is a computer that records revolutions of a bike wheel and turns the readings into data such as distance gone, speed averaged, and other information a serious biker might want to have.
Fickett's contraption uses a magnet on a spoke to trip a sensor on the frame every time the wheel goes around. The sensor sends the data to the processor, which is powered by an AA battery. As Fickett's traveling, the computer reports data in real time via Morse code (because English just isn't as cool as it used to be).
The data can also be pulled from the Arduino via serial connection (which we call "USB") and displayed like it is in the graph pictured. A button harvested from a broken VCR acts as a reset button if needed.
Like any good DIY-er, Fickett made sure all the code and parts he used are available. The code is up on GitHub, and all the parts are listed in detail on his site. It's something that could be assembled easily in a weekend. … Read more