A gravity LED light

This project is inspired by a project -- a revolving LEDs(led lights up from LED1 to LED10 then go back from 10 to 1).---from Michael McRoberts' book "Beginning Arduino". When I was doing this project suddenly I realized that maybe I could revise the code to make the LEDs light up like a free -fal...

By: tomxu



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from Instructables: exploring - technology http://ift.tt/1H4qAjr