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Marbles v70

mort13·clandestine_circuitry·marbles/hardware_design/pcb/KiCad/marbles_v70.kicad_pcb

Marbles v70 PCB layout, top view — open source STM32 board by mort13
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About the Marbles v70 PCB

Marbles v70 is an open source STM32 PCB design by mort13, published on GitHub under the GPL-3.0 license. It is a 2-layer board measuring 88.9 × 106.1 mm, with 207 components from 52 distinct parts.

Its main chip is the STM32F405RGT6, from the STM32 family. Other key parts include the R-78E3.3-0.5, LD2981ABU33, DAC8164ICPW, MCP6004 and OPA4171. By type, the board carries 87 resistors, 58 capacitors, 16 connectors, 12 LEDs, 10 ICs and 7 switches.

It belongs with the audio designs in this gallery.

From the project

Collection of diy synth projects

Main components on the Marbles v70

R-78E3.3-0.5STM32F405RGT6LD2981ABU33DAC8164ICPWMCP6004OPA4171LM4040B10LM324PWTL074PW

Marbles v70 bill of materials (BOM)

207 components, 52 distinct parts — part numbers from the project's BOM.

QtyPartRefs
1
R-78E3.3-0.5
IC1
1
STM32F405RGT6
IC2
1
LD2981ABU33
IC3
1
DAC8164ICPW
IC4
2
MCP6004
IC5, IC6
1
OPA4171
IC7
1
LM4040B10
IC8
1
LM324PW
IC9
1
TL074PW
IC10
1
8MHZ
8MHz
Q1
2
MMBT3904
Q2, Q3
16
PJ301_THONKICONN6
J1, J2, J3, J4, J5, J6, J7, J8 +8
2
MOUNT-HOLE3.0TINY
H3, H5
1
M04PTH
JP1
1
M02PTH
JP2
1
M05X2SHD
JP4
2
LP4OA1PBCT
SW1, SW2
5
TAC_SWITCHPTH
SW3, SW4, SW5, SW6, SW7
5
W115WSURKMGKW
LED1, LED2, LED3, LED4, LED5
7
WP937EGW
LED6, LED7, LED8, LED9, LED10, LED11, LED12
Show 32 more
QtyPartRefs
2
1N5819HW
D1, D2
1
BAT54S
D3
2
1N4148
D4, D5
1
33U
33u
L1
3
WE-CBF_0603
L2, L3, L4
24
100N
100n
C1, C7, C8, C9, C12, C13, C16, C17 +16
5
22U
22u
C2, C11, C22, C23, C27
3
22U
22u
C3, C5, C14
2
20P
20p
C4, C6
3
2.2U
2.2u
C10, C15, C20
3
470N
470n
C25, C51, C52
5
4.7N
4.7n
C30, C32, C33, C40, C42
2
470P
470p
C31, C41
4
47P
47p
C34, C35, C43, C44
7
ESD
C45, C53, C54, C55, C56, C57, C58
2
39
R1, R5
4
100
R2, R3, R7, R8
8
10kB
R4, R13, R14, R16, R20, R21, R37, R38
6
10K
10k
R6, R22, R23, R55, R56, R67
4
2.2K
2.2k
R9, R11, R15, R19
5
1.5K
1.5k
R10, R12, R17, R18, R36
18
100K
100k
R24, R25, R26, R27, R32, R33, R34, R35 +10
7
200K
200k
R28, R29, R30, R31, R70, R71, R72
7
33K
33k
R39, R40, R41, R42, R57, R58, R59
7
1.0K
1.0k
R45, R46, R62, R63, R85, R86, R87
4
23.7K
23.7k
R47, R48, R53, R54
3
39K
39k
R49, R50, R75
3
56K
56k
R51, R52, R69
1
1.0K
1.0k
R68
1
150K
150k
R74
4
680
R78, R79, R80, R81
3
180
R82, R83, R84

Marbles v70 design files

The KiCad project lives in the mort13/clandestine_circuitry repository on GitHub; these links point at the commit this page was built from.

Marbles v70: common questions

What microcontroller does the Marbles v70 use?

The Marbles v70 is built around the STM32F405RGT6, from the STM32 family.

How big is the Marbles v70 PCB?

The Marbles v70 measures 88.9 × 106.1 mm, has 2 copper layers and is 1.6 mm thick.

How many components are on the Marbles v70?

207 components, from 52 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 Marbles v70 design files?

From the mort13/clandestine_circuitry repository on GitHub, which has the KiCad layout and the BOM; the links under Design files point to each one.

Can I use the Marbles v70 design in my own project?

Yes, under the terms of its GPL-3.0 license, which mort13 chose for the repository.

Can I test firmware for the Marbles v70 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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