HardLabs

MacroCAD

ConfusedHello·macroCAD·pcb/macroCAD.kicad_pcb

MacroCAD PCB layout, top view — open source RP2040/RP2350 board by ConfusedHello

About the MacroCAD PCB

MacroCAD is an open source RP2040/RP2350 PCB design by ConfusedHello, published on GitHub. It is a 2-layer board measuring 81.3 × 62.8 mm, with 21 components from 3 distinct parts.

Its main chip is the XIAO-RP2040-SMD, from the RP2040/RP2350 family. By type, the board carries 10 switches, 10 diodes and 1 IC.

It belongs with the keyboards designs in this gallery.

From the project

My own macropad for CAD! Made for Hackclub Highway/Hackpad

For this macropad, there is a function row at the bottom to switch "layers", ie. extra buttons!!

Started off by deciding on some dimensions

Then a bit more work later, the final case

MacroCAD, from the project README
From the project README

Main components on the MacroCAD

XIAO-RP2040-SMD

MacroCAD bill of materials (BOM)

21 components, 3 distinct parts.

QtyPartRefs
1
XIAO-RP2040-SMD
U1
10
SW_Push
SW1, SW2, SW3, SW4, SW5, SW6, SW7, SW8 +2
10
1N4148W
D1, D2, D3, D4, D5, D6, D7, D8 +2

MacroCAD design files

The KiCad project lives in the ConfusedHello/macroCAD repository on GitHub; these links point at the commit this page was built from.

MacroCAD: common questions

What microcontroller does the MacroCAD use?

The MacroCAD is built around the XIAO-RP2040-SMD, from the RP2040/RP2350 family.

How big is the MacroCAD PCB?

The MacroCAD measures 81.3 × 62.8 mm, has 2 copper layers and is 1.6 mm thick.

How many components are on the MacroCAD?

21 components, from 3 distinct parts. The full bill of materials is listed on this page.

Where can I download the MacroCAD design files?

From the ConfusedHello/macroCAD repository on GitHub, which has the KiCad layout and the schematic; the links under Design files point to each one.

Can I use the MacroCAD design in my own project?

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

Can I test firmware for the MacroCAD 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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