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Arduino is an open source electronics hardware and software designed for hobbyists, Makers, tinkerers and professionals to build projects from the simple "blinking LED" to a laser tripwire doorbell. Join Ardunio expert, Jeremy Blum as he presents this 15-part series on Arduino from element14 Community!   Tutorial 01 for Arduino: Getting Acquainted with Arduino Tutorial 02 for Arduino: Buttons, PWM, and Functions Tutorial 03 for Arduino: Electrical Engineering Basics Tutorial 04 for Ar ...