From GameBrew - a wiki dedicated to Video Game Homebrew.
sDepS is a pedometer keeping track of your level of activity.
It was participated in the NEO Summer Coding Compo 2008, ranked 10th.
Steps are registered as walking or running, and the total time spent on each type of activity is shown as well as the Steps Per Minute.
R6 Gold (23G version) (as accelerometer and linker)
R6 Gold (23G version) (as accelerometer) + NEO2 (as linker)
DS Motion Pak (as accelerometer) + R4DS (as linker)
R6 Gold (as accelerometer) + Supercard CF (as linker)