HardLabs

Goober

maxthorson·goober·hardware/hardware/goober.kicad_pcb

Goober PCB layout, top view — open source RP2040/RP2350 board by maxthorson

About the Goober PCB

Goober is an open source RP2040/RP2350 PCB design by maxthorson, published on GitHub. It is a 2-layer board measuring 80 × 96 mm, with 45 components from 16 distinct parts.

Its main chip is the Waveshare RP2040-Zero, from the RP2040/RP2350 family. Other key parts include the SN74AHCT125D. By type, the board carries 11 capacitors, 9 switches, 9 diodes, 9 resistors, 2 ICs and 2 transistors.

It belongs with the keyboards and wearables designs in this gallery.

From the project

the front page for the goober website, soon to have some cool keyboard. watch out!

A compact 9-key USB-C macro pad with MX hot-swap switches, an OLED, a volume/mute knob and individually addressable RGB lighting. RP2040-Zero + QMK. USB hub and charging passthrough are deferred.

Rev A.1 is a checked engineering prototype, ready for a first fabrication and fit test. It has not yet been built or electrically tested on hardware.

1. Read the design plan and parts/cost list. 2. Use the fabrication guide to order a small PCB batch. 3. Print the fit coupon, then follow assembly and testing. 4. Flash the supplied UF2. Software and firmware instructions explain editing and…

Goober, from the project README
From the project README

Main components on the Goober

Waveshare RP2040-ZeroSN74AHCT125D

Goober bill of materials (BOM)

45 components, 16 distinct parts — part numbers from the project's BOM.

QtyPartRefs
1
Waveshare RP2040-Zero
U1
1
SN74AHCT125D
U2
1
AO3401A P-MOSFET
Q1
1
MMBT3904 NPN
Q2
1
OLED: GND 3V3 SCL SDA
J1
1
ALPS EC11E15244G1
ENC1
1
1206L050YR 0.5A PTC
F1
9
Kailh CPG151101S11
SW1, SW2, SW3, SW4, SW5, SW6, SW7, SW8 +1
9
SK6812MINI-E
D1, D2, D3, D4, D5, D6, D7, D8 +1
10
100nF 16V X7R
C1, C2, C3, C4, C5, C6, C7, C8 +2
1
4.7uF 16V X5R
C11
2
100K
100k
R1, R3
1
10K
10k
R2
1
330R
R4
3
4.7K
4.7k
R5, R6, R9
2
3.3K
3.3k
R7, R8

Goober design files

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

Goober: common questions

What microcontroller does the Goober use?

The Goober is built around the Waveshare RP2040-Zero, from the RP2040/RP2350 family.

How big is the Goober PCB?

The Goober measures 80 × 96 mm, has 2 copper layers and is 1.6 mm thick.

How many components are on the Goober?

45 components, from 16 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 Goober design files?

From the maxthorson/goober 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 Goober design in my own project?

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

Can I test firmware for the Goober 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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