6 Software Implementation

The entire software can be modularized into the following subroutines:

• Setup and Main Loop - Initializes the program and sets up the main loop.
• Idle Subroutine - Used to decode single, double and long button presses to enter the various modes of operation.
• Record Subroutine - Used for audio recording and data storage.
• Playback Subroutine - Used for data retrieval and playback.
• Erase Subroutine - Used to erase storage media.
• Passthrough Subroutine - Used to create an audio passthrough without any data storage.