1. Each time SATURN PLANET passes this ALARM board - it begins ringing.
Magnets, embedded into 3-d printed SATURN ball 'react' with HALL EFFECT SENSOR on the alarm board.
It so happens that, one can set it to ring every 29min30secs - if the EARTH ball will do one rotation in
1 hour. So it could be a sort-of kitchen timer.
FILES:
Arduino sketch for HALL sensor as INPUT is here
Arduino sketch for HALL sensor activating SPEAKER as OUTPUT is here
