Open Source ESP32 Retro Smart Speaker

Executive Summary

Mostly Builds shared this open source retro smart speaker. The custom PCB is built around an ESP32 and the radio features a 3D-printed case with a capacitive touchscreen. It supports Bluetooth, streaming internet radio and playback via a microSD card. Thanks for sharing!! I’m finally open sourcing my retro smart speaker. The firmware, KiCad files, light pod PCB, and 3D models are all available to download and modify.

Open Silicon & Gate-Level Hardware Inspection

From a silicon and hardware engineering viewpoint: - **Interface Neutrality:** Mitigates dependency on proprietary BSPs, empowering open toolchains to address hardware directly. - **Supply Chain Verification:** Schematics and open pinouts allow deterministic audits against silicon errata. - **Lifecycle Decoupling:** Decouples physical hardware utility from commercial vendor end-of-life obsolescence.

Impact on the Open Ecosystem

Ensures that computational autonomy remains in the hands of the architect rather than closed silicon vendors.