I am looking to upgrade a project I built last year. The project involved modifying an elliptical cross trainer to control the playback speed of an MP3 being played on a Raspberry Pi.
It was done with some custom python code and a hall effect sensor.
I am now looking to do the same thing with a real bike. But the use of a ‘normal’ bike means that I am looking to use the standard spoke-mounted magnet from a bike computer kit. The one I have needs to be within a few millimetres of the sensor.
If the sensor I am currently using is one of these:
Am I right in assuming it should be possible to get a more-sensitive sensor, rather than trying to mount a stronger magnet to the spoke? If so, which one would be recommended?