Giving new life to an old exercise bike -The PiBike!
My cheap exercise bike computer failed and I couldn't fix it. So I found the wires that connected to the pedal sensor and wired them into a raspberry pi with a small screen. With some custom code it nows pits you in a race up against some of the world's greatest riders. The software accounts for the hills and aero resistance so that drafting and sprinting at the end is the best strategy, just like in a real race.
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