Keyboard

georgempla·keyboard·PCB/keyboard.kicad_pcb

About the Keyboard PCB

Keyboard is an open source RP2040/RP2350 PCB design by georgempla, published on GitHub under the MIT license. It is a 2-layer board measuring 476.7 × 121.2 mm, with 230 components from 10 distinct parts.

Its main chip is the RaspberryPi_Pico, from the RP2040/RP2350 family. Other key parts include the SN74AHCT125N and 74HC595. By type, the board carries 116 diodes, 106 switches, 3 ICs, 3 capacitors, 1 module and 1 connector.

It belongs with the keyboards and displays & leds designs in this gallery.

From the project

After many hours of work, I designed a custom mechanical keyboard featuring RGB LEDs, OLED displays, and rotary encoders. This project focuses on PCB planning, firmware research, CAD design, and represents my second hardware project ever.

This Project is a custom mechanical keyboard powered by a Raspberry Pi Pico. It has: - Sections of addressable RGB LEDs - Two rotary encoders with switches - An OLED 0.91Inch display - A custom PCB designed in KiCad - A 3D-printed case that showcases the PCB

Keyboard, from the project README — From the project README

Main components on the Keyboard

SN74AHCT125N 74HC595 RaspberryPi_Pico

Keyboard bill of materials (BOM)

230 components, 10 distinct parts — part numbers from the project's BOM.

Qty	Part	Footprint	Refs
1	SN74AHCT125N	DIP794W45P254L1930H508Q14	U4
2	74HC595	SOIC127P600X175-16N	U5, U6
1	RaspberryPi_Pico	RaspberryPi_Pico_Common_Unspecified	A1
1	OLED_I2C_CON	0.91 OLED 128x32	J1
104	SW_Push	SW_Cherry_MX_1.00u_PCB	SW1, SW2, SW3, SW4, SW5, SW6, SW7, SW8 +96
2	RotaryEncoder_Switch	RotaryEncoder_Alps_EC12E-Switch_Vertical_H20mm	SW114, SW115
106	D	D_DO-35_SOD27_P7.62mm_Horizontal	D1, D2, D3, D4, D5, D6, D7, D8 +98
10	SK6812	LED_SK6812_PLCC4_5.0x5.0mm_P3.2mm	D113, D114, D115, D116, D117, D118, D119, D120 +2
2	0.1 µF	C_Disc_D5.0mm_W2.5mm_P5.00mm	C1, C2
1	1000 µF	CP_Radial_D8.0mm_P3.50mm	C3

Keyboard design files

The KiCad project lives in the georgempla/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 RaspberryPi_Pico, from the RP2040/RP2350 family.

How big is the Keyboard PCB?

The Keyboard measures 476.7 × 121.2 mm, has 2 copper layers and is 1.6 mm thick.

How many components are on the Keyboard?

230 components, from 10 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 georgempla/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?

Yes, under the terms of its MIT license, which georgempla chose for the repository.

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 RP2040/RP2350 firmware against it before you order a PCB.