HardLabs

Old

sanoojes·hackclub-bitpad·pcb/_old_pcb.kicad_pcb

Old PCB layout, top view — open source RP2040/RP2350 board by sanoojes

About the Old PCB

Old is an open source RP2040/RP2350 PCB design by sanoojes, published on GitHub under the GPL-3.0 license. It is a 2-layer board measuring 111 × 84 mm, with 45 components from 5 distinct parts.

Its main chip is the XIAO-RP2040-DIP, from the RP2040/RP2350 family. By type, the board carries 16 switches, 16 diodes, 12 LEDs and 1 IC.

It belongs with the keyboards designs in this gallery.

From the project

My project for Hackclub Blueprint

A simple, customizable macropad with hot swapable keys, fully programmable keys, per-key RGB lighting, multiple profiles for gaming, programming, editing, and more. uses QMK Firmware

Firmware available at firmware/ firmware will be tweaked and updated after i get the materials.

- 1x XIAO_RP2040 module - 1x SK6812 Mini LEDs - 1x EC11 Rotary Encoder - 4x M3x16mm screws - 4x M3x5mmx4mm inserts - 16x Cherry MX Hotswappable Switches - 16x DSA Keycaps - 3D Printed Case

Old, from the project README
From the project README

Main components on the Old

XIAO-RP2040-DIP

Old bill of materials (BOM)

45 components, 5 distinct parts — part numbers from the project's BOM.

QtyPartRefs
1
XIAO-RP2040-DIP
U1
15
MX_SWITCH
SW1, SW2, SW3, SW5, SW6, SW7, SW8, SW9 +7
1
RotaryEncoder_Switch
SW4
12
MX_SK6812MINI-E
SK6812MINI
LED1, LED2, LED3, LED4, LED9, LED10, LED11, LED12 +4
16
D
D1, D2, D3, D4, D5, D6, D7, D8 +8

Old design files

The KiCad project lives in the sanoojes/hackclub-bitpad repository on GitHub; these links point at the commit this page was built from.

Old: common questions

What microcontroller does the Old use?

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

How big is the Old PCB?

The Old measures 111 × 84 mm, has 2 copper layers and is 1.6 mm thick.

How many components are on the Old?

45 components, from 5 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 Old design files?

From the sanoojes/hackclub-bitpad repository on GitHub, which has the KiCad layout and the BOM; the links under Design files point to each one.

Can I use the Old design in my own project?

Yes, under the terms of its GPL-3.0 license, which sanoojes chose for the repository.

Can I test firmware for the Old 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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