HardLabs

Spekky-Matrix

jc-SpaceXp·Spekky-Matrix·pcb/kicad/spekky_matrix.kicad_pcb

Spekky-Matrix PCB layout, top view — open source STM32 board by jc-SpaceXp
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About the Spekky-Matrix PCB

Spekky-Matrix is an open source STM32 PCB design by jc-SpaceXp, published on GitHub under the MIT license. It is a 2-layer board measuring 153 × 95.8 mm, with 325 components from 25 distinct parts.

Its main chip is the STM32G431K8T6, from the STM32 family. Other key parts include the LMS1585AIS-3.3/NOPB and STP16CP05XTTR. By type, the board carries 260 diodes, 31 resistors, 15 capacitors, 8 transistors, 5 ICs and 2 connectors.

It belongs with the displays & leds and test & measurement designs in this gallery.

From the project

Spectrum analyser displayed on a LED matrix board connected to a STM32 device

Main components on the Spekky-Matrix

LMS1585AIS-3.3/NOPBSTM32G431K8T6STP16CP05XTTR

Spekky-Matrix bill of materials (BOM)

325 components, 25 distinct parts — part numbers from the project's BOM.

QtyPartRefs
1
LMS1585AIS-3.3/NOPB
LMS1585AIS-3.3
U1
1
STM32G431K8T6
STM32G431K8Tx
U2
3
STP16CP05XTTR
STP16CP05XT
U3, U4, U5
8
DMP3125L-7
Q1, Q2, Q3, Q4, Q5, Q6, Q7, Q8
1
10118194-0001LF
USB_B_Micro
J1
1
FTSH-105-01-L-D-K
Conn_ARM_JTAG_SWD_10
J2
1
MSM261S4030H0R
MSM261S4030H0R I2S Mic
MK1
1
3386F-1-222LF
2K2
RV1
1
TL3305AF260QG
SW_Push
SW1
2
PESD5V0X1UAB,115
PESD5V0X1UAB
D1, D3
1
LTST-C190KRKT
3V3 LED (RED)
D2
1
LTST-C190KGKT
GPIO Debug LED (GREEN)
D4
256
LTST-C190KRKT
LED Matrix (RED)
D101, D102, D103, D104, D105, D106, D107, D108 +248
1
HI2220R301R-10
300R @ 100 MHz
FB1
1
GCM188R71H103KA37J
10n
C1
9
C0603C104J3RACTU
100n
C2, C6, C7, C8, C11, C12, C13, C14 +1
2
EDH106M016A9BAA
10u
C3, C4
1
C1608X5R1A106K080AC
10u
C5
1
GCG188L8EE105KA07D
1u
C9
1
GRM188Z71C475KE21D
4u7
C10
Show 5 more
QtyPartRefs
13
RT0603DRE071KL
1K
R1, R4, R13, R14, R15, R16, R17, R18 +5
1
RP73PF1J100KBTDF
100K
R2
1
RT0603FRE0710KL
10K
R3
8
RT0603FRE0710RL
10R
R5, R6, R7, R8, R9, R10, R11, R12
8
RT0603FRE075K1L
5K1
R21, R22, R23, R24, R25, R26, R27, R28

Spekky-Matrix design files

The KiCad project lives in the jc-SpaceXp/Spekky-Matrix repository on GitHub; these links point at the commit this page was built from.

Spekky-Matrix: common questions

What microcontroller does the Spekky-Matrix use?

The Spekky-Matrix is built around the STM32G431K8T6, from the STM32 family.

How big is the Spekky-Matrix PCB?

The Spekky-Matrix measures 153 × 95.8 mm, has 2 copper layers and is 1.6 mm thick.

How many components are on the Spekky-Matrix?

325 components, from 25 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 Spekky-Matrix design files?

From the jc-SpaceXp/Spekky-Matrix repository on GitHub, which has the KiCad layout, the schematic and the BOM; the links under Design files point to each one.

Can I use the Spekky-Matrix design in my own project?

Yes, under the terms of its MIT license, which jc-SpaceXp chose for the repository.

Can I test firmware for the Spekky-Matrix 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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