HardLabs

Keyboard

chen-gz·keyboard

Keyboard PCB layout, top view — open source Nordic nRF board by chen-gz

About the Keyboard PCB

Keyboard is an open source Nordic nRF PCB design by chen-gz, published on GitHub. It is a 4-layer board measuring 305.1 × 117.2 mm, with 183 components from 15 distinct parts.

Its main chip is the MDBT50Q-1MV2, from the Nordic nRF family. Other key parts include the USBLC6-2SC6 and BQ24012. By type, the board carries 85 diodes, 84 switches, 4 resistors, 3 ICs, 3 connectors and 3 capacitors.

It belongs with the keyboards designs in this gallery.

From the project

This repository contains the KiCad design files for a custom mechanical keyboard PCB.

This repository contains the KiCad design files for a custom mechanical keyboard PCB.

- KiCad Files: - keyboard.kicadpro: Project file. - keyboard.kicadsch: Schematic file. - keyboard.kicadpcb`: PCB layout file.

- Manufacturing Files: - keyboardbom.csv: Bill of Materials. - keyboard-top.pos / keyboard-bottom.pos: Pick and place position files. - pcb.pdf`: Printable PCB view.

Keyboard, from the project README
From the project README

Main components on the Keyboard

MDBT50Q-1MV2USBLC6-2SC6BQ24012

Keyboard bill of materials (BOM)

183 components, 15 distinct parts — part numbers from the project's BOM.

QtyPartRefs
1
MDBT50Q-1MV2
U1
1
USBLC6-2SC6
U2
1
BQ24012
U3
1
USB_C_Receptacle_USB2.0_14P
J1
1
Conn_01x02_Pin
J2
1
Conn_01x04_Pin
J3
84
SW_Push
SW1, SW2, SW3, SW4, SW5, SW6, SW7, SW8 +76
84
1N4148WT
D1, D2, D3, D4, D5, D6, D7, D8 +76
1
LED_BLUE
D85
1
10 uH
L1
1
4.7 uF
C1
2
4.7 uF
C2, C3
2
5.1K
R1, R2
1
2K
R5
1
10K
R6

Keyboard design files

The KiCad project lives in the chen-gz/keyboard repository on GitHub; these links point at the commit this page was built from.

Keyboard: common questions

What microcontroller does the Keyboard use?

The Keyboard is built around the MDBT50Q-1MV2, from the Nordic nRF family.

How big is the Keyboard PCB?

The Keyboard measures 305.1 × 117.2 mm, has 4 copper layers and is 1.606 mm thick.

How many components are on the Keyboard?

183 components, from 15 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 Keyboard design files?

From the chen-gz/keyboard 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 Keyboard design in my own project?

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

Can I test firmware for the Keyboard 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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