HI,
the cheapest way is to attach some conductive strip/flag to the wheel, and use that to connect to open wires, at each turn. Will give a short click when connected to your audio card input, then detecting that click with [env~] and measuring the time between two clicks (turns of the wheel) woth [timer]
good luck!
Happy Easter!
Peter
Jonathan Goodwin wrote:
Hi all,
I'm thinking about using an exercise bike as an interface for a video installation. I'm currently thinking I could perhaps use a speedometer to get midi data to use in PD.
I've only ever used HID input to PD. Can anyone give me any pointers as where to begin with such a task?! Is it even possible to gather the data I need from a non midi device like a bike speedo?
Thanks Jonathan
PD-list@iem.at mailing list UNSUBSCRIBE and account-management -> http://lists.puredata.info/listinfo/pd-list