For this project, I took apart an existing phone booth that no longer worked and modded it so that whenever you type in a phone number, you get a song that is associated with it.

I replaced all 12 buttons and plugged them all into an Arduino so that I could get specific number data when I am processing phone number information.

Audio is being processed through an SD card reader, which sends audio to the arduino and then to an audio amplifier. All audio is stored on a 16 GB micro SD card which is capable of holding over 4000 different songs.

When you type in any sequence of 10 digits, the Arduino will check if it matches any of the existing saved numbers and play the corresponding audio associated with it. If the phone number doesn’t match any of the existing sequences, then it will choose an audio file from a list of unmatched files. Once you put the phone back on the rack it hits the hinge button and resets the program so you can call a new number