HardLabs

Microom

Kreyl·Microom·Microom_hw/Microom.kicad_pcb

Microom PCB layout, top view — open source STM32 board by Kreyl

About the Microom PCB

Microom is an open source STM32 PCB design by Kreyl, published on GitHub. It is a 2-layer board measuring 56.4 × 62.2 mm, with 139 components from 26 distinct parts.

Its main chip is the STM32F405RX-64, from the STM32 family. By type, the board carries 51 capacitors, 35 resistors, 20 test points, 9 diodes, 2 inductors and 1 transistor.

From the project

Microphones control board

Microom bill of materials (BOM)

139 components, 26 distinct parts — part numbers from the project's BOM.

QtyPartRefs
1
DVIUC6-4SC6
Q1
2
TLV733XX
TLV733xx
DA1, DA2
2
PCM1865
DA3, DA4
1
STM32F405RX-64
DD1
1
FUSE0R
Fuse0R
F1
3
HOLE_METALLED
HOLE1, HOLE2, HOLE3
8
Microphone
MIC1, MIC2, MIC3, MIC4, MIC5, MIC6, MIC7, MIC8
20
TESTPOINT
TP1, TP2, TP3, TP4, TP5, TP6, TP7, TP8 +12
1
CONN_3
XL1
1
USB_MICRO_B
XL2
1
ST_SWD
XL3
1
12 MHz
XTAL1
9
LED
D1, D2, D3, D4, D5, D6, D7, D8 +1
2
BLM15AG102SN1
L1, L2
13
10U
10u
C1, C25, C27, C34, C35, C44, C45, C46 +5
2
20PF
20pF
C2, C6
13
0.1U
0.1u
C3, C4, C8, C9, C10, C11, C13, C19 +5
10
10N
10n
C5, C7, C36, C37, C38, C39, C40, C41 +2
7
1u
C12, C14, C15, C16, C17, C24, C26
6
2.2U
2.2u
C18, C21, C28, C31, C52, C53
Show 6 more
QtyPartRefs
1
1M
R1
1
200R
R2
9
510
R5, R6, R7, R8, R9, R10, R11, R12 +1
8
100R
R14, R15, R16, R17, R18, R19, R20, R21
8
2.2K
2.2k
R22, R23, R24, R25, R26, R27, R28, R29
8
100K
100k
R30, R31, R32, R33, R34, R35, R36, R37

Microom design files

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

Microom: common questions

What microcontroller does the Microom use?

The Microom is built around the STM32F405RX-64, from the STM32 family.

How big is the Microom PCB?

The Microom measures 56.4 × 62.2 mm, has 2 copper layers and is 1.6 mm thick.

How many components are on the Microom?

139 components, from 26 distinct parts, with part numbers taken from the project's own BOM. The full bill of materials is listed on this page.

Where can I download the Microom design files?

From the Kreyl/Microom repository on GitHub, which has the KiCad layout and the BOM; the links under Design files point to each one.

Can I use the Microom design in my own project?

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

Can I test firmware for the Microom 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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