• Author: Veaceslav Cazanov
• Email: veaceslav.cazanov@stud.acs.upb.ro
• Master: SRIC

The project's main goal is to offer the user the possibility to stream music over Bluetooth to ESP32 which will forward the received music to a DAC. Thus, this project enables Bluetooth audio connection to speakers which lack Bluetooth support. Thanks to existing libraries, this is a fairly easy thing to implement. In order to make the project more complex and enable means of communication of ESP32 other than Bluetooth, I decided to add usage statistics tracking. In this page, I will cover general description, hardware design, software design, implementation highlights and challenges faced developing this project.

This is a flow chart which represents state flow of ESP32. Simultaneous use of Wi-Fi and Bluetooth is reportedly problematic and that's why they work mutually exclusive in this project. Gathering local statistics means gathering the artist, album, title and the cover art (if supported) of the currently playing song. Also, it means collecting the number of plays and total play time for each recorded song. The play time is the total time when song was in the 'play' state. For a play to count, a song must have a play time of a minimum 5 seconds in a playback session.