On Thu, March 4, 2010 09:48, Jonathan Gazeley wrote: > 1. A sensor that can measure my cadence. A simple magnet switch that > triggers once a revolution won't be enough to measure the cadence with > sufficient resolution, since my cadence is usually between 50 and 80 > rpm. I would probably need to mount multiple magnets spaced equally > around the chainwheel and have a single sensor on the frame. Then I have > to get it to supply this information to my control program. Cycle computers which measure cadence work with a single magnet on the crank and can measure cadence in that range and above. I think the fastest RPM I ever got was (only a vague memory) around 120 (maybe?) when I was being silly trying to see how fast I could pedal. > I have absolutely no idea why I would want such a device - just for the > fun of building it, I guess. I would like it to work in realtime (rather > than later generating the soundtrack from recorded cadence data). The > thought of sitting at the traffic lights with my earphones in and then > hearing the mighty roar of a V8 as I pull away would be really > satisfying... Would it not be better to have a pair of mighty speakers in the shape of twin exhaust pipes sticking out the back so every one else can hear the roar :-D _______________________________________________ Linux-audio-user mailing list Linux-audio-user@xxxxxxxxxxxxxxxxxxxx http://lists.linuxaudio.org/listinfo/linux-audio-user
