View source for Playing sound (with the MP3 shield) & pressure plates

== Intro ==

In this tutorial we will be attaching three pressure plates '''or''' ''button'' to an Arduino. When the pressure plate is activated the Arduino plays a .MP3 file.

== Requirements == , 

Arduino Uno (+ usb cable)<br>
Micro SD card (this stores the .MP3 files)<br>
Sparkfun MP3 player shield (available for rent at the Interaction Station)<br>
Pressure plates '''or''' ''buttons''  (available for rent at the Interaction Station)<br>
An active speaker '''or''' ''headphones''<br>
MP3 files<br>

== Getting ready ==

'''Step 1:'''<br>
Make sure you have downloaded the Arduino IDE for the uploading the code to the Arduino board. If you don't have it, please go to https://www.arduino.cc/en/Main/OldSoftwareReleases , click on your operating system followed by pressing the 'just download' button. Install the software on your computer, but don't open it yet! If it opens automatically, don't worry, just close it.<br><br>