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Allcolours

microresearch·allcolours·all_colours_kicad/allcolours.kicad_pcb

Allcolours PCB layout, top view — open source STM32 board by microresearch
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About the Allcolours PCB

Allcolours is an open source STM32 PCB design by microresearch, published on GitHub. It is a board measuring 101.3 × 106.2 mm, with 246 components from 55 distinct parts.

Its main chip is the STM32F103CBTX, from the STM32 family. Other key parts include the LM1117-3.3, MAX4392, TL082, L78M10 and LM1117-5.0. By type, the board carries 110 resistors, 52 capacitors, 32 modules, 15 ICs, 14 transistors and 11 diodes.

From the project

all the colours of the noise

Main components on the Allcolours

LM1117-3.3MAX4392TL082L78M10LM1117-5.0MCP6002MAX7490MAXIM_7400STM32F103CBTX

Allcolours bill of materials (BOM)

246 components, 55 distinct parts — part numbers from the project's BOM.

QtyPartRefs
1
LM1117-3.3
U1
1
MAX4392
max4392
U2
6
TL082
U3, U4, U9, U11, U18, U19
1
L78M10
U5
1
LM1117-5.0
U6
2
MCP6002
U7, U17
1
MAX7490
U8
1
MAXIM_7400
maxim_7400
U10
1
STM32F103CBTX
STM32F103CBTx
U16
31
AUDIO-JACKERTHENVAR
M1-speedlfin1, M2-clkinl1, M3-pulsehfclkin1, M4-pulsehf1in1, M5-difffilaudinl1, M7-pulselfclkin1, M8-pulself1in1, M9-speedhfin1 +23
1
pulself1_out
M25-pulself1out1
4
MMBT3904
Q1, Q3, Q5, Q6
10
MMBT3904
Q2, Q4, Q7, Q9, Q10, Q11, Q12, Q13 +2
1
8 MHz
Y2
1
PROG
J1
1
CONN_02X05
P4
6
10K
RV1-comphf1, RV2-complf1, RV3-comphf2, RV4-complf2, modehf1, modelf1
2
10K
speedhf1, speedlf1
1
LM4040
D1
6
1N5819
D2, D3, D4, D5, D14, D15
Show 35 more
QtyPartRefs
4
1N4148
D6, D7, D8, D9
1
INDUCTOR
L2
2
47U
10U
C1, C4
30
100N
C2, C3, C8, C9, C10, C11, C15, C16 +22
9
10U
10u
C5, C14, C20, C25, C39, C54, C55, C56 +1
1
10P
10p
C6
1
100N
1UF 25V
C7
1
100N
47uF 10v
C12
4
1NF
1nF
C27, C58, C61, C62
4
18P
18p
C41, C59, C60, C64
2
47K
R1, R3
1
150K
R2
3
4K7
R4, R16, R18
28
10K
R5, R6, R7, R8, R9, R13, R15, R20 +20
18
1K
TEST
R10, R14, R21, R27, R43, R44, R74, R76 +10
1
33K
33k
R11
7
100K
R12, R17, R38, R73, R81, R88, R93
1
240K
470K
R19
2
10K
100K
R25, R63
2
10K
R26, R62
2
4K7
47K
R28, R36
2
4K7
100R
R30, R40
1
470R
R31
4
100K
10K
R32, R33, R34, R35
4
66.5K
R39, R95, R98, R99
2
100K
TEST
R41, R68
2
4K7
15K
R45, R64
3
4K7
4.7K
R48, R58, R101
10
200K
R50, R51, R52, R53, R54, R55, R85, R94 +2
2
4K7
1K
R57, R66
4
10K
1K
R60, R70, R71, R77
2
24K
10K
R61, R102
4
33K
1M
R79, R91, R104, R107
2
3K3
R86, R106
1
10R
R110

Allcolours design files

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

Allcolours: common questions

What microcontroller does the Allcolours use?

The Allcolours is built around the STM32F103CBTX, from the STM32 family.

How big is the Allcolours PCB?

The Allcolours measures 101.3 × 106.2 mm and is 1.6002 mm thick.

How many components are on the Allcolours?

246 components, from 55 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 Allcolours design files?

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

Can I use the Allcolours design in my own project?

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

Can I test firmware for the Allcolours 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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