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10 modular midi 2 cv

bmurauer·cynthia·kosmo/kosmo_modular_midi_2_cv/10_modular_midi_2_cv.kicad_pcb

10 modular midi 2 cv PCB layout, top view — open source ESP8266 board by bmurauer

About the 10 modular midi 2 cv PCB

10 modular midi 2 cv is an open source ESP8266 PCB design by bmurauer, published on GitHub. It is a 2-layer board measuring 24 × 134.1 mm, with 29 components from 18 distinct parts.

Its main chip is the WEMOS_D1_mini, from the ESP8266 family. Other key parts include the PC817, MCP4822 and TL072. By type, the board carries 10 capacitors, 7 resistors, 5 connectors, 4 ICs, 1 switch and 1 diode.

It belongs with the audio designs in this gallery.

From the project

Plans for my modular synthesizer

Plans for my modular synthesizer, named Cynthia.

I have split the modules into folders with numbered names. These numbers only correspond to the order that I included them into this project. Every project should at least contain: - a README.md with more information about the module - schematics for the schematics, made in KiCAD - stripboard for the design of the stripboard (you don't need this if you order proper PCBs). I use DIY Layout Creator for this. - panel for the Kosmo-format (20cm height) panels. I use a custom template for OpenSCAD which can be found in lib/kosmo.scad. On linux, you…

Main components on the 10 modular midi 2 cv

WEMOS_D1_miniPC817MCP4822TL072

10 modular midi 2 cv bill of materials (BOM)

29 components, 18 distinct parts.

QtyPartRefs
1
WEMOS_D1_mini
U1
1
PC817
U2
1
MCP4822
U3
1
TL072
U4
1
OUTPUTS
J1
1
DIN-5_180degree
J2
1
MIDI Thru Out
J3
1
MIDI Thru IN
J4
1
EURORACK
J5
1
10k
RV1
1
MIDI SOURCE
SW1
1
1N4148
D1
7
100nF
C1, C2, C5, C6, C7, C8, C9
3
47uF
C3, C4, C10
1
R220
R1
1
R560
R2
4
1k
R3, R4, R5, R6
1
10k
R7

10 modular midi 2 cv design files

The KiCad project lives in the bmurauer/cynthia repository on GitHub; these links point at the commit this page was built from.

10 modular midi 2 cv: common questions

What microcontroller does the 10 modular midi 2 cv use?

The 10 modular midi 2 cv is built around the WEMOS_D1_mini, from the ESP8266 family.

How big is the 10 modular midi 2 cv PCB?

The 10 modular midi 2 cv measures 24 × 134.1 mm, has 2 copper layers and is 1.6 mm thick.

How many components are on the 10 modular midi 2 cv?

29 components, from 18 distinct parts. The full bill of materials is listed on this page.

Where can I download the 10 modular midi 2 cv design files?

From the bmurauer/cynthia repository on GitHub, which has the KiCad layout and the schematic; the links under Design files point to each one.

Can I use the 10 modular midi 2 cv design in my own project?

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

Can I test firmware for the 10 modular midi 2 cv without the hardware?

Yes. HardLabs builds a simulation of the board from its netlist and BOM, so you can run and debug ESP8266 firmware against it before you order a PCB.

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