Rope Skipping Device

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hi guys.

i thinking of making rope skipping device (without real rope :) ) limited arduino skill.

as can guess should see if on floor or @ air. there no rope. jumping.

when increase speed @ rope skipping space between , floor decreases know. may 1-2 cm space left.

what kind of sensor use kind of job?

force sensor? or kind of laser?

thanks

laser. use visible laser can see.


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