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Macropad V2

ANSHUMANDOCX·Macropad_V2·PCB/Macropad V2.kicad_pcb

Macropad V2 PCB layout, top view — open source RP2040/RP2350 board by ANSHUMANDOCX

About the Macropad V2 PCB

Macropad V2 is an open source RP2040/RP2350 PCB design by ANSHUMANDOCX, published on GitHub. It is a 2-layer board measuring 110 × 120 mm, with 64 components from 9 distinct parts.

Its main chip is the DEV-18288, from the RP2040/RP2350 family. Other key parts include the SL2.1A. By type, the board carries 35 diodes, 20 switches, 2 ICs, 2 capacitors, 2 resistors and 1 connector.

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

From the project

This is a 20-key macropad with 2 rotary encoders, 2 analog slide potentiometers, and a 0.91" OLED display.

This is a 20-key macropad with 2 rotary encoders, 2 analog slide potentiometers, and a 0.91" OLED display.

- Pro Micro RP2040 - SSD1306 0.91" OLED - 20 MX-style keys - 2 Encoders - 2 PTA0643 Slide Potentiometers - WS2812B 2020 RGB LEDs

I wanted to make a macropad with enough keys for my purpose. I started out by getting a microcontroller with enough pins and one that is able to run CircuitPython, since I wanted to use KMK as the firmware. This can be programmed for MIDI control as well. It also has RGB LEDs for underglow.

Macropad V2, from the project README
From the project README

Main components on the Macropad V2

DEV-18288SL2.1A

Macropad V2 bill of materials (BOM)

64 components, 9 distinct parts — part numbers from the project's BOM.

QtyPartRefs
1
DEV-18288
U1
1
SL2.1A
U2
1
USB_C_RECEPTACLE_USB2.0_16P
USB_C_Receptacle_USB2.0_16P
J1
2
R_Potentiometer
RV1, RV2
20
SW_Push
SW1, SW2, SW3, SW4, SW5, SW6, SW7, SW8 +12
20
1N4148
D1, D2, D3, D4, D5, D6, D7, D8 +12
15
WS2812B-2020
D21, D22, D23, D24, D25, D26, D27, D28 +7
2
10UF
10uF
C1, C2
2
5.1K
5.1k
R1, R2

Macropad V2 design files

The KiCad project lives in the ANSHUMANDOCX/Macropad_V2 repository on GitHub; these links point at the commit this page was built from.

Macropad V2: common questions

What microcontroller does the Macropad V2 use?

The Macropad V2 is built around the DEV-18288, from the RP2040/RP2350 family.

How big is the Macropad V2 PCB?

The Macropad V2 measures 110 × 120 mm, has 2 copper layers and is 1.6 mm thick.

How many components are on the Macropad V2?

64 components, from 9 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 Macropad V2 design files?

From the ANSHUMANDOCX/Macropad_V2 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 Macropad V2 design in my own project?

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

Can I test firmware for the Macropad V2 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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