Volumio Player

Here is a set of source materials for a compact and light-weight Volumio Player, running on Raspberry Pi Zero W. Has an OLED display for spectrum analyzer(using MPD_OLED plugin), a low-cost I2S DAC module, and an automated amplifier on/off function. The housing was designed in Fusion 360 for 3D printing and costs 30 US dollars or less in total to build.

Visit my YouTube video on building and setting up this Volumio player:
https://youtu.be/c_RkBM2sTRM

Although the whole set of information for this project, including the source file for my design, is being shared, this tutorial assumes some level of viewer's knowledge of electronics, Raspberry Pi projects, and general DIY skills: Visit my YouTube tutorials to get familiarized with similar projects and related technics, which are linked below.

IMPORTANT NOTICE
Procedure includes handling of AC mains circuitry, albeit at a very simple level.
Please take measures to protect yourself and your device from any dangers involved.