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ESP32 MIDI2CV

collaborative-music-lab·ESP_MIDI·PCB/Kicad/ESP32_MIDI2CV/ESP32_MIDI2CV.kicad_pcb

ESP32 MIDI2CV PCB layout, top view — open source ESP32 board by collaborative-music-lab

About the ESP32 MIDI2CV PCB

ESP32 MIDI2CV is an open source ESP32 PCB design by collaborative-music-lab, published on GitHub. It is a 2-layer board measuring 71.5 × 36 mm, with 23 components from 10 distinct parts.

Its main chip is the Wifiduino-ESP32S3-SMD, from the ESP32 family. Other key parts include the MCP4728 and TCA9517D. By type, the board carries 9 resistors, 4 diodes, 3 ICs and 1 capacitor.

It belongs with the audio, iot & wireless and sensors designs in this gallery.

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 MIDI2CV

MCP4728TCA9517D

ESP32 MIDI2CV bill of materials (BOM)

23 components, 10 distinct parts.

QtyPartRefs
1
MCP4728
U1
1
~
U2
1
TCA9517D
U3
6
AudioJack2_SwitchT
JI1, JI2, JO1, JO2, JO3, JO4
2
LED
D1, D2
2
D_Zener
D3, D4
1
0.1uF
C1
3
4k7
R1, R2, R3
4
100R
R4, R5, R6, R7
2
10k
R8, R9

ESP32 MIDI2CV 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 MIDI2CV: common questions

What microcontroller does the ESP32 MIDI2CV use?

The ESP32 MIDI2CV is built around the Wifiduino-ESP32S3-SMD, from the ESP32 family.

How big is the ESP32 MIDI2CV PCB?

The ESP32 MIDI2CV measures 71.5 × 36 mm, has 2 copper layers and is 1.6 mm thick.

How many components are on the ESP32 MIDI2CV?

23 components, from 10 distinct parts. The full bill of materials is listed on this page.

Where can I download the ESP32 MIDI2CV 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.

Can I use the ESP32 MIDI2CV design in my own project?

The repository has no license, so all rights stay with collaborative-music-lab. Use it as a reference, and ask the author before reusing the design.

Can I test firmware for the ESP32 MIDI2CV without the hardware?

Yes. HardLabs builds a simulation of the board from its netlist and BOM, so you can run and debug ESP32 firmware against it before you order a PCB.

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