As part of my Mechatronics course (MEAM 510), I built a speaker that could receive music via Bluetooth. The requirements of the project were to design the driver and filtering circuitry of the speaker, build a housing structure and program the embedded MAEVARM M2 micro-controller.
The end goal of the project were to form an "orchestra" of instruments made by ~110 students taking the class. Students were assigned specific frequency ranges that their instruments would be particularly suited to play within their designated frequency range (110-180 Hz). However, the instruments still needed to be able to play a complete range of musical frequencies.