HardLabs

Snowflake

JackHack96·snowflake-pcb

Snowflake PCB layout, top view — open source Nordic nRF board by JackHack96

About the Snowflake PCB

Snowflake is an open source Nordic nRF PCB design by JackHack96, published on GitHub. It is a 2-layer board measuring 95.2 × 95.3 mm, with 37 components from 11 distinct parts.

Its main chip is the 453-00001R, from the Nordic nRF family. Other key parts include the AMS1117-3.3. By type, the board carries 16 capacitors, 13 diodes, 3 resistors, 2 ICs, 1 transistor and 1 crystal.

It belongs with the iot & wireless designs in this gallery.

From the project

nRF54L15 snowflake circuit

A smart Christmas decoration featuring 12 addressable WS2812B RGB LEDs, controlled via Bluetooth Low Energy (BLE) for dynamic lighting effects on your Christmas tree.

- 12 addressable RGB LEDs (WS2812B) - Bluetooth Low Energy (BLE) wireless control - Compact PCB design - SWD interface for programming

- Components/ - Custom footprints and symbols (LED, SWD connector) - production/ - Design outputs (renders, netlist and production ready files) - snowflake.kicadsch - Schematic - snowflake.kicadpcb - PCB layout

Snowflake, from the project README
From the project README

Main components on the Snowflake

453-00001RAMS1117-3.3

Snowflake bill of materials (BOM)

37 components, 11 distinct parts.

QtyPartRefs
1
453-00001R
nRF54L15
IC1
1
AMS1117-3.3
U1
1
BSS138
Q1
1
Crystal
Y1
1
Conn_01x02
J2
12
WS2812B
D1, D2, D3, D4, D5, D6, D7, D8 +4
1
PMEG3020EGWX
D13
14
0.1uF
C1, C2, C3, C4, C5, C6, C7, C8 +6
2
10uF
C14, C15
2
10K
R1, R2
1
0R
R3

Snowflake design files

The KiCad project lives in the JackHack96/snowflake-pcb repository on GitHub; these links point at the commit this page was built from.

Snowflake: common questions

What microcontroller does the Snowflake use?

The Snowflake is built around the 453-00001R, from the Nordic nRF family.

How big is the Snowflake PCB?

The Snowflake measures 95.2 × 95.3 mm, has 2 copper layers and is 1.6 mm thick.

How many components are on the Snowflake?

37 components, from 11 distinct parts. The full bill of materials is listed on this page.

Where can I download the Snowflake design files?

From the JackHack96/snowflake-pcb repository on GitHub, which has the KiCad layout and the schematic; the links under Design files point to each one.

Can I use the Snowflake design in my own project?

The repository has no license, so all rights stay with JackHack96. Use it as a reference, and ask the author before reusing the design.

Can I test firmware for the Snowflake without the hardware?

Yes. HardLabs builds a simulation of the board from its netlist and BOM, so you can run and debug Nordic nRF firmware against it before you order a PCB.

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