As a class project, two students decided to build a bike computer that could measure distance, speed, cadence and power output. With a bunch of normal off the shelf sensors, an LCD screen, and the knowledge of how it all works, they assembled a device that can do all that for $60. But before you run off to Radio Shack, know that it may not have the same simple user interface as your Garmin, and has a bit of a DIY appearance.
Why did they do it? Simply to show it could be done for a whole lot less than commercially available products as a class project.
Click past the jump to see Mark and Brian explain their device, and hit 500+ watts on a rusty chain…
