On Thu, Jul 2, 2009 at 11:34 AM, Risto H. Kurppa<[email protected]> wrote:
> 1) I'm missing the cadence display = the number of revolutions of the > crank per minute; roughly speaking, this is the speed at which a > cyclist is pedalling/turning the pedals. For cadence detection, a hall effect sensor and a small magnet would cover it and have no moving parts/contacts ( see [1] for an example), you could do the same for wheels if you wanted to, though that would require some form of pre-processing to multiplex the signals I would think. [1] http://www.instructables.com/id/RGBike-POV-Open-project/ _______________________________________________ Openmoko community mailing list [email protected] http://lists.openmoko.org/mailman/listinfo/community
