HardLabs

Snake

Kreyl·Tzydyan·Snake/Snake_hw/Snake.kicad_pcb

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

About the Snake PCB

Snake is an open source STM32 PCB design by Kreyl, published on GitHub. It is a 4-layer board measuring 46.9 × 30.9 mm, with 81 components from 36 distinct parts.

Its main chip is the STM32L433CCT6, from the STM32 family. By type, the board carries 29 capacitors, 20 resistors, 6 transistors, 4 test points, 4 inductors and 3 switches.

Snake bill of materials (BOM)

81 components, 36 distinct parts.

QtyPartRefs
2
-
LED_RGB_CA
Q1, Q2
1
2N7002
Q3
2
IRLML9303
Q4, Q5
1
BC848
Q6
1
EEMB502030
B1
1
0896BM15A0001E
BALUN868JOHANSON
BLN1
1
MCP1700T-3302E/TT
MCP1700
DA1
1
TP4056
DA2
1
STM32L433CCT6
STM32L433Cx
DD1
1
CC1101
DD2
1
LSM6DS3
DD3
1
Fuse0R
F1
2
BUTTON
SW1, SW2
1
BUTTON
SW3
4
TESTPOINT
TP1, TP2, TP3, TP4
1
CONN_6
XL1
1
CONN_1
XL2
1
USB_MICRO_6H
XL3
2
CONN_1
XL4, XL5
1
27MHz
XTAL2
Show 16 more
QtyPartRefs
1
PMEG2020
D1
1
*
L1
3
BLM15AG102SN1
L2, L3, L4
1
100pF
C1
2
*
C2, C3
2
18pF
C6, C7
14
0.1u
C8, C10, C11, C12, C13, C14, C15, C16 +6
4
1u
C9, C23, C26, C27
4
CL10A106MQ8NNNC
10u
C18, C28, C29, C30
2
10n
C24, C25
6
10k
R1, R15, R16, R17, R18, R20
2
56k
R2, R4
6
1k
R5, R6, R7, R8, R9, R10
4
100k
R11, R12, R13, R21
1
0R2
R14
1
1M
R19

Snake design files

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

Snake: common questions

What microcontroller does the Snake use?

The Snake is built around the STM32L433CCT6, from the STM32 family.

How big is the Snake PCB?

The Snake measures 46.9 × 30.9 mm, has 4 copper layers and is 1 mm thick.

How many components are on the Snake?

81 components, from 36 distinct parts. The full bill of materials is listed on this page.

Where can I download the Snake design files?

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

Can I use the Snake 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 Snake 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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