HardLabs

Kb kapad

KavyanshKhaitan2·kb-kapad·pcb/rev1.kicad_pcb

Kb kapad PCB layout, top view — open source RP2040/RP2350 board by KavyanshKhaitan2

About the Kb kapad PCB

Kb kapad is an open source RP2040/RP2350 PCB design by KavyanshKhaitan2, published on GitHub. It is a 2-layer board measuring 99.9 × 99.9 mm, with 50 components from 5 distinct parts.

Its main chip is the XIAO-RP2040-DIP, from the RP2040/RP2350 family. Other key parts include the OLED_0.91_128x32. By type, the board carries 32 diodes, 16 switches and 2 ICs.

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

From the project

Qty. | Item :-:|:-: 16 | Cherry MX Switches 16 | Blank DSA Keycaps 16 | SK6812 MINI LEDs 1 | XIAO RP2040 4 | M3x16 Bolts 4 | M3 Heatset 1 | 3D printed case 4* | Transparent sheet (3x3 cm)

Qty. | Item :-:|:-: 16 | Cherry MX Switches 16 | Blank DSA Keycaps 16 | SK6812 MINI LEDs 1 | XIAO RP2040 4 | M3x16 Bolts 4 | M3 Heatset 1 | 3D printed case 4* | Transparent sheet (3x3 cm)

\* I already have this, so I will provide this myself.

Kb kapad, from the project README
From the project README

Main components on the Kb kapad

XIAO-RP2040-DIPOLED_0.91_128x32

Kb kapad bill of materials (BOM)

50 components, 5 distinct parts.

QtyPartRefs
1
XIAO-RP2040-DIP
U1
1
OLED_0.91_128x32
U2
16
SW_Push
SW1, SW2, SW3, SW4, SW5, SW6, SW7, SW8 +8
16
SK6812
D1, D2, D3, D4, D5, D6, D7, D8 +8
16
1N4148
D17, D18, D19, D20, D21, D22, D23, D24 +8

Kb kapad design files

The KiCad project lives in the KavyanshKhaitan2/kb-kapad repository on GitHub; these links point at the commit this page was built from.

Kb kapad: common questions

What microcontroller does the Kb kapad use?

The Kb kapad is built around the XIAO-RP2040-DIP, from the RP2040/RP2350 family.

How big is the Kb kapad PCB?

The Kb kapad measures 99.9 × 99.9 mm, has 2 copper layers and is 1.6 mm thick.

How many components are on the Kb kapad?

50 components, from 5 distinct parts. The full bill of materials is listed on this page.

Where can I download the Kb kapad design files?

From the KavyanshKhaitan2/kb-kapad repository on GitHub, which has the KiCad layout and the schematic; the links under Design files point to each one.

Can I use the Kb kapad design in my own project?

The repository has no license, so all rights stay with KavyanshKhaitan2. Use it as a reference, and ask the author before reusing the design.

Can I test firmware for the Kb kapad 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.

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