HardLabs

3x3MacroPadExtras

Grilled-Cheese-Engineering·3x3MacroPadExtras·KiCad/macro_pad.kicad_pcb

3x3MacroPadExtras PCB layout, top view — open source Nordic nRF board by Grilled-Cheese-Engineering
Simulate this board

About the 3x3MacroPadExtras PCB

3x3MacroPadExtras is an open source Nordic nRF PCB design by Grilled-Cheese-Engineering, published on GitHub under the GPL-3.0 license. It is a 2-layer board measuring 61 × 80.5 mm, with 22 components from 6 distinct parts.

Its main chip is the XIAO-NRF52840-SMD, from the Nordic nRF family. By type, the board carries 10 switches, 9 diodes, 1 IC, 1 connector and 1 resistor.

It belongs with the keyboards, iot & wireless and power & battery designs in this gallery.

From the project

Contains the KiCad design files and files for 3D printing the case of the board.

This repository contains the KiCad design files and files for 3D printing the case of the board as well as an assembly guide to build your own.

Download the firmware from our master ZMK Firmware Repository: GCE ZMK Firmware

All of the KiCad files are provided in the the KiCad directory. KiCad Files

Some of the symbols used may not be present. Make sure you have Seeed Studios' XIAO Kicad Symbol Library and ScottoKeebs Kicad Library.

3x3MacroPadExtras, from the project README
From the project README

Main components on the 3x3MacroPadExtras

XIAO-NRF52840-SMD

3x3MacroPadExtras bill of materials (BOM)

22 components, 6 distinct parts — part numbers from the project's BOM.

QtyPartRefs
1
XIAO-NRF52840-SMD
XIAO-nRF52840-SMD
U1
1
CONN_01X02
Conn_01x02
J1
9
~
S1, S2, S3, S4, S5, S6, S7, S8 +1
1
RotaryEncoder
SW1
9
~
D1, D2, D3, D4, D5, D6, D7, D8 +1
1
R
R1

3x3MacroPadExtras design files

The KiCad project lives in the Grilled-Cheese-Engineering/3x3MacroPadExtras repository on GitHub; these links point at the commit this page was built from.

3x3MacroPadExtras: common questions

What microcontroller does the 3x3MacroPadExtras use?

The 3x3MacroPadExtras is built around the XIAO-NRF52840-SMD, from the Nordic nRF family.

How big is the 3x3MacroPadExtras PCB?

The 3x3MacroPadExtras measures 61 × 80.5 mm, has 2 copper layers and is 1.6 mm thick.

How many components are on the 3x3MacroPadExtras?

22 components, from 6 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 3x3MacroPadExtras design files?

From the Grilled-Cheese-Engineering/3x3MacroPadExtras 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 3x3MacroPadExtras design in my own project?

Yes, under the terms of its GPL-3.0 license, which Grilled-Cheese-Engineering chose for the repository.

Can I test firmware for the 3x3MacroPadExtras 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.

Similar boards