HardLabs

Kicad-Keyboard

archerlepke·Kicad-Keyboard·Keyboard/Keyboard.kicad_pcb

Kicad-Keyboard PCB layout, top view — open source AVR/Arduino board by archerlepke

About the Kicad-Keyboard PCB

Kicad-Keyboard is an open source AVR/Arduino PCB design by archerlepke, published on GitHub. It is a 2-layer board measuring 304.8 × 100 mm, with 155 components from 21 distinct parts.

Its main chip is the ATMEGA32U4-A, from the AVR/Arduino family. Other key parts include the PRTR5V0U2X. By type, the board carries 67 switches, 67 diodes, 8 capacitors, 6 resistors, 2 ICs and 1 crystal.

It belongs with the keyboards designs in this gallery.

From the project

Personal Project

A custom mechanical keyboard designed from scratch in KiCad — schematic, PCB, and supporting files.

The goal of this repo is to document and archive my completed work on this project.

Future Plans: - soldering components & microcontroller from digikey(already bought and delivered) - 3D Print keyboard case - install switches & keycaps (already bought and on hand) - install firmware (QMK)

Kicad-Keyboard, from the project README
From the project README

Main components on the Kicad-Keyboard

PRTR5V0U2XATMEGA32U4-A

Kicad-Keyboard bill of materials (BOM)

155 components, 21 distinct parts — part numbers from the project's BOM.

QtyPartRefs
1
PRTR5V0U2X
U1
1
ATMEGA32U4-A
ATmega32U4-A
U2
1
CRYSTAL_GND24_SMALL
Crystal_GND24_Small
Y1
1
AVR-ISP-6
J1
1
500M
500m
F1
55
SW_Push
SW1, SW2, SW3, SW4, SW5, SW6, SW7, SW8 +47
1
SW_Push
SW14
4
SW_Push
SW16, SW29, SW59, SW61
2
SW_Push
SW31, SW56
2
SW_Push
SW43, SW45
2
SW_Push
SW60, SW64
1
SW_Push
SW62
1
~
SW_SKQG1
1
HRO-TYPE-C-31-M-12
USB1
67
D
D1, D2, D3, D4, D5, D6, D7, D8 +59
5
0.1U
0.1u
C1, C2, C3, C4, C5
2
C_Small
C6, C7
1
1u
C8
2
22
R1, R2
2
5.1K
5.1k
R3, R4
Show 1 more
QtyPartRefs
2
10K
10k
R5, R6

Kicad-Keyboard design files

The KiCad project lives in the archerlepke/Kicad-Keyboard repository on GitHub; these links point at the commit this page was built from.

Kicad-Keyboard: common questions

What microcontroller does the Kicad-Keyboard use?

The Kicad-Keyboard is built around the ATMEGA32U4-A, from the AVR/Arduino family.

How big is the Kicad-Keyboard PCB?

The Kicad-Keyboard measures 304.8 × 100 mm, has 2 copper layers and is 1.6 mm thick.

How many components are on the Kicad-Keyboard?

155 components, from 21 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 Kicad-Keyboard design files?

From the archerlepke/Kicad-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 Kicad-Keyboard design in my own project?

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

Can I test firmware for the Kicad-Keyboard without the hardware?

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

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