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XMAS 2025

crikeyk·XMAS_2025·PCB/XMAS_2025/XMAS_2025.kicad_pcb

XMAS 2025 PCB layout, top view — open source STM32 board by crikeyk
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About the XMAS 2025 PCB

XMAS 2025 is an open source STM32 PCB design by crikeyk, published on GitHub. It is a 2-layer board measuring 75.9 × 85.1 mm, with 46 components from 16 distinct parts.

Its main chip is the STM8S003F3P6TR, from the STM32 family. Other key parts include the MCP1640B. By type, the board carries 20 capacitors, 14 LEDs, 7 resistors, 2 ICs, 2 switches and 1 inductor.

From the project

2025 christmas ornament

Main components on the XMAS 2025

MCP1640BSTM8S003F3P6TR

XMAS 2025 bill of materials (BOM)

46 components, 16 distinct parts — part numbers from the project's BOM.

QtyPartRefs
1
MCP1640B
U1
1
STM8S003F3P6TR
STMicroelectronics
U4
1
C720477
Tactile Button, 160gf
XUNPU
S1
1
C778186
SW_SPDT
SW1
14
C965555
~
LED1, LED2, LED3, LED4, LED5, LED6, LED7, LED8 +6
1
4U7
4u7
L1
1
4.7UF
4.7uF
Samsung Electro-Mechanics
C1
1
10UF
10uF
Samsung Electro-Mechanics
C2
1
1NF
1nF
Samsung Electro-Mechanics
C3
16
100NF
100nF
YAGEO
C4, C6, C7, C8, C9, C10, C11, C12 +8
1
1UF
1uF
Samsung Electro-Mechanics
C5
1
470kΩ
UNI-ROYAL(Uniroyal Elec)
R1
1
150kΩ
UNI-ROYAL(Uniroyal Elec)
R2
3
100kΩ
UNI-ROYAL(Uniroyal Elec)
R3, R6, R7
1
10Ω
UNI-ROYAL(Uniroyal Elec)
R4
1
1kΩ
UNI-ROYAL(Uniroyal Elec)
R5

XMAS 2025 design files

The KiCad project lives in the crikeyk/XMAS_2025 repository on GitHub; these links point at the commit this page was built from.

XMAS 2025: common questions

What microcontroller does the XMAS 2025 use?

The XMAS 2025 is built around the STM8S003F3P6TR, from the STM32 family.

How big is the XMAS 2025 PCB?

The XMAS 2025 measures 75.9 × 85.1 mm, has 2 copper layers and is 1.6 mm thick.

How many components are on the XMAS 2025?

46 components, from 16 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 XMAS 2025 design files?

From the crikeyk/XMAS_2025 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 XMAS 2025 design in my own project?

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

Can I test firmware for the XMAS 2025 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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