Hi there. A friend and I have a project in planning which requires a odometer or speedometer that can interface with a PC and send it live information. Basically I want it to feed the speed or distance ridden to a computer as it's happening. The laptop or electronic device that will be picking up this information will either be on the bike (in a pannier I'm thinking) or on the riders back in a bag. GPS is out of the question as this bike may go onto some sort of public transportation, and we need distance ridden by human power. Also if this does is serial based, that would be best, though we can sort of deal with USB.
Hopefully someone here has something in mind that might fit this bill. Thanks!