HardLabs

Blue usb midi

zacrogers·blue_usb_midi·Electronics/MidiControllerV2/MidiControllerV2.kicad_pcb

Blue usb midi PCB layout, top view — open source STM32 board by zacrogers

About the Blue usb midi PCB

Blue usb midi is an open source STM32 PCB design by zacrogers, published on GitHub. It is a 2-layer board measuring 93.5 × 30 mm, with 40 components from 14 distinct parts.

Its main chip is the STM32F100C8Tx, from the STM32 family. Other key parts include the AMS1117-3.3. By type, the board carries 14 resistors, 13 capacitors, 6 connectors, 3 switches, 2 ICs and 1 crystal.

It belongs with the audio and displays & leds designs in this gallery, and the repository also holds 1 earlier revision of it.

From the project

USB midi implementation with stm32 blue pill

USB class compliant midi implementation with stm32 blue pill

Grid keypad midi controller. 8 step sequencer. LCD display menu for setting parameters.

Main components on the Blue usb midi

AMS1117-3.3STM32F100C8Tx

Blue usb midi bill of materials (BOM)

40 components, 14 distinct parts.

QtyPartRefs
1
AMS1117-3.3
U1
1
STM32F100C8Tx
U2
1
Crystal
Y1
1
USB_B_Micro
J1
1
BOOT0_H
J2
1
BOOT1_H
J3
2
Conn_01x04_Male
J4, J6
1
Conn_01x08_Male
J5
2
Encoder
SW1, SW2
1
SW_DPST
SW3
1
LED
D1
13
C
C1, C2, C3, C4, C5, C6, C7, C8 +5
13
R
R1, R2, R3, R4, R5, R7, R8, R9 +5
1
R
R6

Blue usb midi design files

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

Blue usb midi: common questions

What microcontroller does the Blue usb midi use?

The Blue usb midi is built around the STM32F100C8Tx, from the STM32 family.

How big is the Blue usb midi PCB?

The Blue usb midi measures 93.5 × 30 mm, has 2 copper layers and is 1.6 mm thick.

How many components are on the Blue usb midi?

40 components, from 14 distinct parts. The full bill of materials is listed on this page.

Where can I download the Blue usb midi design files?

From the zacrogers/blue_usb_midi repository on GitHub, which has the KiCad layout; the links under Design files point to each one.

Can I use the Blue usb midi design in my own project?

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

Can I test firmware for the Blue usb midi without the hardware?

Yes. HardLabs builds a simulation of the board from its netlist and BOM, so you can run and debug STM32 firmware against it before you order a PCB.

Earlier revisions in the repo: MidiControllerV1

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