e-paper mp3 player

another step towards digital minimalism

may 2026 ~ present



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i've been gaining interest in consumer tech and industrial design recently. i decided to build my own mp3 player and learn the electronics and firmware as i go.


the pcb was designed in kicad and manufactured by jlcpcb. the enclosure was designed in onshape and 3d printed.


a simplification i made was to make the playback bluetooth only. i always use my airpods on the go and love its convenience. using breakout boards also greatly simplified this project, but i hope to learn how to design my boards from scratch in the future.


this project is still a work in progress, but from it i have already learned a lot about microcontrollers, rtos, memory management, mp3 file structure, unicode, and more.


specs:


firmware (github)