![Audio ESP32 MIDI music](https://mir-s3-cdn-cf.behance.net/project_modules/1400/7423d8156376921.6365df1f2dddd.jpg)
The MIDI Mixer
The MIDI Mixer is a Bluetooth sound board designed with six buttons
and three dials that allow for the control of audio tracks.
It is driven by an ESP32 mictrocontroller on a custom PCB board designed in the program EasyEDA. The schematics and wiring diagrams are pictured below.
![](https://mir-s3-cdn-cf.behance.net/project_modules/1400/e4cd4f156376921.6365df1c2a1ee.png)
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![](https://mir-s3-cdn-cf.behance.net/project_modules/1400/20f559156376921.6365df1c2b45b.png)
https://github.com/RMCarraway/MIDIMixer
![](https://mir-s3-cdn-cf.behance.net/project_modules/1400/8eb831156376921.6365df1cc106b.jpg)
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The enclosure was modeled in Autodesk Fusion 360 and laser cut with acrylic. The top panel was sanded in order to give it a frosted glass finish, and the other panels were spray painted translucent blue.
As part of the project, the mixer was used to perform at a party on Halloween.
My DJ logo is raster engraved on the bottom panel and filled with silver enamel.
![](https://mir-s3-cdn-cf.behance.net/project_modules/disp_webp/f50ce5156376921.6365df1d558d3.gif)
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![](https://mir-s3-cdn-cf.behance.net/project_modules/disp_webp/52b18c156376921.6365df1d54728.gif)
The music was put together using the online program AudioTool. It offers a selection of drums, tone creators, and synthesizers.
![](https://mir-s3-cdn-cf.behance.net/project_modules/1400/3fe83f156376921.6365df1ee490b.png)
You can view my music track here: https://youtu.be/PDygOMOl50c