As the EasyMP3 Shield has been stacked on the Arduino board, the coding of the EasyMP3 Shield should be included too. Simply download the coding library from the website of Cytron Technology Sdn Bhd or follow the same instruction for pulse sensor. Upon completion of EasyMP3 Shield library download, click on the example on CytronEasyMP3 and choose “PlayATrack”. From this coding, it has been provided the coding to play one and more track. To play this track, the MP3 files need to be added first in the SD Card which can be inserted on the SD Card slot of EasyMP3 Shield. Example of CytronEasyMP3 Coding