Button LED Input/Output Circuit

About: I am robotics engineer and a teacher whose passion in life is breaking down the maths and academic jargon of programming and robotics into something that everyone can understand, primary school kids include...

In this tutorial you will learn how to do basic Arduino programming and
use an "if function". This will be done by connecting a button as an input and an LED as an output and subsequently program the LED to do different things once the button is pushed.

Components used:

•Arduino Uno

•400pts Breadboard

•LED X 1

•Resistors: 330Ω X 1

•Tactile Push Button 6mm

•Jumper Wire

p.s: Was this too easy for ya?, well its a part of a free, fully documented (programs+schematics) online course designed to get young kids into electronics, so if you any that would dig it, good pass it on?

Step 1: Using Button As a Security Feature

What if instead of an LED your Arduino was wired to a safe door. With a bit of programming you can make your button act like a passcode!

Check it out in this video

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