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Modulus Macropad

advaitconty·Modulus·PCB/Modulus Macropad/Modulus Macropad.kicad_pcb

Modulus Macropad PCB layout, top view — open source Raspberry Pi board by advaitconty

About the Modulus Macropad PCB

Modulus Macropad is an open source Raspberry Pi PCB design by advaitconty, published on GitHub. It is a 2-layer board measuring 124 × 111.9 mm, with 52 components from 7 distinct parts.

Its main chip is the Raspberry_Pi_Pico_THT, from the Raspberry Pi family. By type, the board carries 25 diodes, 24 switches, 2 connectors and 1 module.

It belongs with the keyboards designs in this gallery.

From the project

A keyboard, designed to be completely modular via USB Type-C ports

A keyboard, built with the idea of expansion in the future, through SPI.

Things I will do later in the future (with other Hack Club events, or with my own money): - Numpad over SPI - Macropad over SPI

Just use it like a keyboard! However, any SPI accessories should be connected while the keyboard is powered down. This is mainly a limitation of SPI, as it is not hot-plug compatible. The USB ports are USB 2.0 only, so it's better to be used for stuff like USB sound cards and mice. I don't actually know how much lag will the ports create, because they're bottom mounted, in direct contact with…

Modulus Macropad, from the project README
From the project README

Main components on the Modulus Macropad

Raspberry_Pi_Pico_THT

Modulus Macropad bill of materials (BOM)

52 components, 7 distinct parts — part numbers from the project's BOM.

QtyPartRefs
1
Raspberry_Pi_Pico_THT
A1
2
NC3MAH
J9, J10
22
C41430893
~
S1, S2, S3, S4, S5, S6, S7, S8 +14
1
C41430893
~
S18
1
~
S19
24
C81598
Diode
D1, D2, D3, D4, D5, D6, D7, D8 +16
1
D_Generic
D25

Modulus Macropad design files

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

Modulus Macropad: common questions

What microcontroller does the Modulus Macropad use?

The Modulus Macropad is built around the Raspberry_Pi_Pico_THT, from the Raspberry Pi family.

How big is the Modulus Macropad PCB?

The Modulus Macropad measures 124 × 111.9 mm, has 2 copper layers and is 1.6 mm thick.

How many components are on the Modulus Macropad?

52 components, from 7 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 Modulus Macropad design files?

From the advaitconty/Modulus 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 Modulus Macropad design in my own project?

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

Can I test firmware for the Modulus Macropad without the hardware?

Yes. HardLabs builds a simulation of the board from its netlist and BOM, so you can run and debug Raspberry Pi firmware against it before you order a PCB.

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