The Arduino, color sensor, speaker, MP3 module and jumper wires have to be areadily available

Design of schematic diagram to enable best possible way of arranging the components

A portable box is needed to be design and fabricated whether it is DIY or machine cut. Material used depends on individual. A rectangle has be cut at any side of the portable box to allow notes to be inserted.

Placing the color sensor at the entrance of the rectangular opening at the side. Placing the Arduino at the extreme left corner and using screws to tighten it to the space provided. Placing the speaker at the other side opposite of the rectangular opening. Then, putting the mini player at the center and the battery down at the back of the box.

Upload the code for the color sensor into the Arduino and allow it to run by pressing the red button on-top of the device.

Test the note currency recognizer and listen to the automated voice whether it recognizes the notes correctly.