HardLabs

PCB

bhoppe-dev·Shortcut_Keyboard·01_Shortcut_Keyboard_PCB/shortcut_keyboard.kicad_pcb

PCB layout, top view — open source RP2040/RP2350 board by bhoppe-dev

About the PCB

PCB is an open source RP2040/RP2350 PCB design by bhoppe-dev, published on GitHub under the BSD-2-Clause license. It is a 4-layer board measuring 100 × 79 mm, with 61 components from 24 distinct parts.

Its main chip is the RP2040, from the RP2040/RP2350 family. Other key parts include the NCP1117-3.3_SOT223, USBLC6-2SC6 and W25Q128JVS. By type, the board carries 24 resistors, 18 capacitors, 10 switches, 4 ICs, 2 connectors and 2 diodes.

It belongs with the keyboards designs in this gallery.

From the project

Open source macro keyboard featuring eight Cherry MX switches, rotary encoder and full configurability.

KiCad project files for the Shortcut-Keyboard PCB based on RP2040.

1. Design Optimization: The chosen stackup provides an optimal balance between routing efficiency and performance for this specific application.

2. Signal Requirements Analysis: After analyzing the signal integrity requirements for the RP2040-based keyboard, I determined that the modest-speed signals don't demand the theoretical advantages of dual ground planes.

Main components on the PCB

NCP1117-3.3_SOT223USBLC6-2SC6W25Q128JVSRP2040

PCB bill of materials (BOM)

61 components, 24 distinct parts — part numbers from the project's BOM.

QtyPartRefs
1
NCP1117-3.3_SOT223
U1
1
USBLC6-2SC6
U2
1
W25Q128JVS
U3
1
RP2040
U4
1
ABM8-272-T3
Y1
1
USB_C_Receptacle_USB2.0_16P
J1
1
Conn_01x03
J2
1
SW_Push
SW1
1
RotaryEncoder_Switch
SW2
8
SW_Push
SW3, SW4, SW5, SW6, SW7, SW8, SW9, SW10
1
SML-D12Y8WT86R (yellow)
D1
1
KT-0603R (red)
D2
2
10uF
C1, C2
10
100nF
C3, C4, C5, C9, C11, C12, C13, C14 +2
2
1uF
C6, C10
2
10nF
C7, C8
2
15pF
C17, C18
2
1k
R1, R13
2
5k1
R2, R3
1
220
R4
Show 4 more
QtyPartRefs
2
27
R5, R6
13
10k
R7, R8, R9, R10, R11, R14, R15, R16 +5
1
470
R12
3
49R9
R22, R23, R24

PCB design files

The KiCad project lives in the bhoppe-dev/Shortcut_Keyboard repository on GitHub; these links point at the commit this page was built from.

PCB: common questions

What microcontroller does the PCB use?

The PCB is built around the RP2040, from the RP2040/RP2350 family.

How big is the PCB?

The PCB measures 100 × 79 mm, has 4 copper layers and is 1.6 mm thick.

How many components are on the PCB?

61 components, from 24 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 PCB design files?

From the bhoppe-dev/Shortcut_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 PCB design in my own project?

Yes, under the terms of its BSD-2-Clause license, which bhoppe-dev chose for the repository.

Can I test firmware for the PCB 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.

More boards in Shortcut_Keyboard

Similar boards