HardLabs

Keycool84keyboard

overlordpro-sys·keycool84keyboard·pcb_files/keyboard.kicad_pcb

Keycool84keyboard PCB layout, top view — open source AVR/Arduino board by overlordpro-sys
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About the Keycool84keyboard PCB

Keycool84keyboard is an open source AVR/Arduino PCB design by overlordpro-sys, published on GitHub under the MIT license. It is a 2-layer board measuring 337.4 × 120.5 mm, with 169 components from 9 distinct parts.

Its main chip is the Arduino_Micro_Socket, from the AVR/Arduino family. By type, the board carries 84 LEDs and 84 diodes.

It belongs with the keyboards designs in this gallery.

From the project

Building a Mechanical Keyboard From Scratch

About a year ago, I was looking into getting a new mechanical keyboard with linear switches. I had grown tired of the name brand keyboards like Corsair and Logitech who did not lubricate their switches. This made each keypress loud and unsatisfying. After doing some research, I decided to build my own instead of buying it. Most people who build custom keyboards buy a predesigned PCB. However, I wanted to design the PCB myself because I thought it would be fun. In the end, that proved true and I learned a lot about the inner workings of mechanical keyboards and PCB design.

Keycool84keyboard, from the project README
From the project README

Keycool84keyboard bill of materials (BOM)

169 components, 9 distinct parts.

QtyPartRefs
1
Arduino_Micro_Socket
XA1
73
MX-NoLED
MX1, MX2, MX3, MX4, MX5, MX6, MX7, MX8 +65
2
MX-NoLED
MX29, MX55
1
MX-NoLED
MX41
2
MX-NoLED
MX43, MX67
2
MX-NoLED
MX57, MX68
3
MX-NoLED
MX71, MX72, MX73
1
MX-NoLED
MX74
84
D_Small
D1, D2, D3, D4, D5, D6, D7, D8 +76

Keycool84keyboard design files

The KiCad project lives in the overlordpro-sys/keycool84keyboard repository on GitHub; these links point at the commit this page was built from.

Keycool84keyboard: common questions

What microcontroller does the Keycool84keyboard use?

The Keycool84keyboard is built around the Arduino_Micro_Socket, from the AVR/Arduino family.

How big is the Keycool84keyboard PCB?

The Keycool84keyboard measures 337.4 × 120.5 mm, has 2 copper layers and is 1.6 mm thick.

How many components are on the Keycool84keyboard?

169 components, from 9 distinct parts. The full bill of materials is listed on this page.

Where can I download the Keycool84keyboard design files?

From the overlordpro-sys/keycool84keyboard repository on GitHub, which has the KiCad layout; the links under Design files point to each one.

Can I use the Keycool84keyboard design in my own project?

Yes, under the terms of its MIT license, which overlordpro-sys chose for the repository.

Can I test firmware for the Keycool84keyboard 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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