ESP32 MIDI v3a

collaborative-music-lab·ESP_MIDI·PCB/Kicad/Main-PCB/ESP32_MIDI_v3a/ESP32_MIDI_v3a.kicad_pcb

About the ESP32 MIDI v3a PCB

ESP32 MIDI v3a is an open source ESP32 PCB design by collaborative-music-lab, published on GitHub. It is a 2-layer board measuring 171 × 28 mm, with 17 components from 8 distinct parts.

Its main chip is the Wifiduino-ESP32S3-SMD, from the ESP32 family. Other key parts include the LSM6DS3_Breakout. By type, the board carries 12 test points, 2 ICs and 2 diodes.

It belongs with the audio, iot & wireless and sensors designs in this gallery, and the repository also holds 2 earlier revisions of it.

From the project

ESP32-s3 midi controller

1. The main PCB, with the ESP32 pre-soldered 2. 4 potentiometers, 2 to place on the PCB and two additional off-board potentiometers with small pcbs. 3. 4 Arcade Buttons 4. An LSM6DS3 IMU breakout board 5. An RGB LED and resistors

Make sure get your enclosure drilled for your faceplate before you mount your PCB to the faceplate in step 9!!!

1. Place two potentiometers on the PCB. Make sure they are flat. It is a good idea to place the potentiometers on a faceplate to make sure they are aligned. Solder the potentiometers in place. the potentiometers go on the opposite side of the PCB from the…

Main components on the ESP32 MIDI v3a

LSM6DS3_Breakout

ESP32 MIDI v3a bill of materials (BOM)

17 components, 8 distinct parts.

Qty	Part	Footprint	Refs
1	LSM6DS3_Breakout	LSM6DS3_Breakout_oneSide	U1
1	~	Wifiduino-ESP32S3-SMD	U2
1	R_Potentiometer_Dual	potentiometer_wheel_10mm_SMD-shield	RV2
8	TestPoint	recorder-touchpad	TP1, TP2, TP3, TP4, TP5, TP6, TP7, TP10
2	TestPoint	recorder-touchpad-alt-up	TP8, TP12
1	TestPoint	recorder-touchtrack_120mm	TP9
1	TestPoint	recorder-touchpad-narrow	TP11
2	WS2812B	LED_D5.0mm-4_RGB_Wide_Pins	D1, D2

ESP32 MIDI v3a design files

The KiCad project lives in the collaborative-music-lab/ESP_MIDI repository on GitHub; these links point at the commit this page was built from.

ESP32 MIDI v3a: common questions

What microcontroller does the ESP32 MIDI v3a use?

The ESP32 MIDI v3a is built around the Wifiduino-ESP32S3-SMD, from the ESP32 family.

How big is the ESP32 MIDI v3a PCB?

The ESP32 MIDI v3a measures 171 × 28 mm, has 2 copper layers and is 1.6 mm thick.

How many components are on the ESP32 MIDI v3a?

17 components, from 8 distinct parts. The full bill of materials is listed on this page.

Where can I download the ESP32 MIDI v3a design files?

From the collaborative-music-lab/ESP_MIDI repository on GitHub, which has the KiCad layout and the schematic; the links under Design files point to each one.