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Mseq

MF-Room·mseq_pcb

Mseq PCB layout, top view — open source STM32 board by MF-Room

About the Mseq PCB

Mseq is an open source STM32 PCB design by MF-Room, published on GitHub under the CERN-OHL-S-2.0 license. It is a 2-layer board measuring 135.3 × 78.4 mm, with 87 components from 39 distinct parts.

Its main chip is the STM32F413CHU6, from the STM32 family. Other key parts include the SN74HCT125DR, H11L1SM, AMS1117-3.3, CP2102N-A02-GQFN20R and W25Q16JVSSIQ. By type, the board carries 24 capacitors, 24 resistors, 9 diodes, 9 inductors, 8 ICs and 4 switches.

It belongs with the audio and usb & debug tools designs in this gallery.

From the project

KiCad 10 hardware design for MSeq embedded, the microcontroller implementation of the MSeq MIDI sequencer.

KiCad 10 hardware design for MSeq embedded, the microcontroller implementation of the MSeq MIDI sequencer.

This hardware design is licensed under the CERN Open Hardware Licence Version 2 – Strongly Reciprocal (SPDX-License-Identifier: CERN-OHL-S-2.0). See LICENSE for the full text.

Source location: https://github.com/MF-Room/mseq_pcb

Main components on the Mseq

SN74HCT125DRH11L1SMAMS1117-3.3STM32F413CHU6CP2102N-A02-GQFN20RW25Q16JVSSIQMB85RS256BPNF-G-JNERE1

Mseq bill of materials (BOM)

87 components, 39 distinct parts.

QtyPartRefs
1
SN74HCT125DR
U1
2
H11L1SM
H11L1M
U2, U6
1
AMS1117-3.3
U3
1
STM32F413CHU6
STM32F413CHUx
U4
1
CP2102N-A02-GQFN20R
CP2102N-Axx-xQFN20
U5
1
W25Q16JVSSIQ
W25Q16JVSS
U7
1
MB85RS256BPNF-G-JNERE1
MB85RS256B
U8
1
CM7V-T1A-32.768kHz-6pF-20PPM-TA-QC
32.768kHz ±20ppm 6pF
Y1
1
ABM3-25.000MHZ-D2Y-T
25 MHz ±20ppm 18pF
Y2
1
2.54-1*4P
Screen_I2C
J1
1
FTSH-105-01-L-DV-K-TR
Conn_ARM_JTAG_SWD_10
J3
4
DIN-504
DIN-5_180degree
MIDI_IN1, MIDI_IN2, MIDI_OUT1, MIDI_THRU1
1
1825027-5
RESET
SW1
1
OS102011MA1QS1
ON/OFF
SW2
1
OS102011MA1QS1
MS/SLAVE
SW3
1
1825027-5
BOOT
SW4
1
TYPE-C-31-M-12
USB_C_Receptacle_USB2.0_16P
USB1
2
1N4148W-E3-08
1N4148
D1, D6
1
SP0505BAHTG
SP0505BAHT
D2
1
E6Q0603VGAC1UDA
G_LED
D3
Show 19 more
QtyPartRefs
3
E6Q0603QBAC1UDA
B_LED
D4, D5, D7
2
TJ-S1608SW9T6ALC0A-A5
O_LED
D8, D9
9
MMZ1608R102ATA00
1 kΩ @ 100 MHz
FB1, FB2, FB3, FB4, FB5, FB6, FB7, FB8 +1
2
CL31B106KAHNNNE
10uF
C1, C10
12
06035C104JAT2A
100nF
C2, C3, C4, C5, C7, C9, C11, C12 +4
3
CL31B475KAHNNNE
4.7uF
C6, C19, C20
1
CL21F105ZAFNNNE
1uF
C8
1
CL31A226KAHNNNE
22uF
C13
1
06035C103JAT2A
10nF
C14
2
0603CG6R0C500NT
6pF
C15, C16
2
0805CG9R0C500NT
9pF
C17, C18
6
0603WAF2200T5E
220R
R2, R3, R4, R7, R8, R19
5
RCA0310KJLF
10k
R5, R9, R10, R24, R25
2
CRCW0603330RJNEA
330R
R6, R20
6
0805W8F1001T5E
1KR
R11, R12, R13, R21, R22, R23
1
RT0805BRD0722K1L
22.1k
R14
1
0603WAF4752T5E
47.5k
R15
1
0603WAF1001T5E
1k
R16
2
0603WAF5101T5E
5.1K
R17, R18

Mseq design files

The KiCad project lives in the MF-Room/mseq_pcb repository on GitHub; these links point at the commit this page was built from.

Mseq: common questions

What microcontroller does the Mseq use?

The Mseq is built around the STM32F413CHU6, from the STM32 family.

How big is the Mseq PCB?

The Mseq measures 135.3 × 78.4 mm, has 2 copper layers and is 1.6 mm thick.

How many components are on the Mseq?

87 components, from 39 distinct parts. The full bill of materials is listed on this page.

Where can I download the Mseq design files?

From the MF-Room/mseq_pcb repository on GitHub, which has the KiCad layout and the schematic; the links under Design files point to each one.

Can I use the Mseq design in my own project?

Yes, under the terms of its CERN-OHL-S-2.0 license, which MF-Room chose for the repository.

Can I test firmware for the Mseq 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.

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