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2 layersAudio source controller, the printed circuit board in 3D

Audio source controller

johngian/audio-source-controller

A DIY audio source distributor based on esp32

Copper layers
2
Thickness
1.6 mm
Parts
10
Nets
60
Pads
81
Tracks, vias
0, 0
Routed
Not yet
KiCad
KiCad 6 (file 20211014)
Created
6 Nov 2022
Updated
19 Nov 2022

Overview

Audio source controller is an open-source printed circuit board by johngian, from the johngian/audio-source-controller repository on GitHub. It is a 2-layer board with 10 parts on 60 nets.

It is built around the ESP32-WROOM-32. Its parts include 6 diodes, 3 switches and 1 IC. It belongs with the audio and music boards and the ESP32 boards of this library.

Main components

1

README

README.md

DIY audio source controller

Problem

I have a pair of good audio monitors and want to reuse them between different audio sources. Extra points if I don't need to move from the couch.

Solution

Use esp32 and make a network enabled audio source controller.

Details

  • Uses low signal latching relays
  • Relays can be driven directly from esp32 using 3.3V gpio ports
  • Supports 3 stereo audio inputs and 1 stereo audio output

Parts

10
QtyValueFootprintReferences
61N4004Diode_THT:D_DO-41_SOD81_P10.16mm_HorizontalD1-r1, D1-s1, D2-r1, D2-s1, D3-r1, D3-s1
3AZ850P2-xRelay_THT:Relay_DPDT_FRT5K1, K2, K3
1ESP32-WROOM-32RF_Module:ESP32-WROOM-32U1

Questions

What parts does the Audio source controller use?

10 parts, built around the ESP32-WROOM-32. The full list of its parts is on this page, with links to each part's symbol and footprint where PCBKit's library has them.

Where can I download the Audio source controller KiCad files?

From the johngian/audio-source-controller repository on GitHub, at the commit this page was made from: the board is audio-source-controller.kicad_pcb and its schematic audio-source-controller.kicad_sch. PCBKit opens the board in the browser, with nothing to install.

Can I use the Audio source controller design in my own project?

Its repository states no licence, so its author keeps all rights: ask johngian before reusing the design.

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