HardLabs

BicOwo40

alexxpeng·BicOwo40·Keeber40/Keeber40.kicad_pcb

BicOwo40 PCB layout, top view — open source RP2040/RP2350 board by alexxpeng

About the BicOwo40 PCB

BicOwo40 is an open source RP2040/RP2350 PCB design by alexxpeng, published on GitHub. It is a 2-layer board measuring 257.2 × 92.9 mm, with 81 components from 9 distinct parts.

Its main chip is the Pico, from the RP2040/RP2350 family. By type, the board carries 39 relays, 39 diodes, 1 IC, 1 switch and 1 LED.

It belongs with the keyboards designs in this gallery.

From the project

Custom 40% keyboard rp2040 (pi pico)

Main components on the BicOwo40

Pico

BicOwo40 bill of materials (BOM)

81 components, 9 distinct parts.

QtyPartRefs
1
Pico
U1
31
KEYSW
K1, K5, K6, K7, K8, K9, K10, K11 +23
4
KEYSW
K2, K4, K37, K39
2
KEYSW
K3, K35
1
KEYSW
K24
1
KEYSW
K36
1
SW_PUSH
SW1
1
OLED
OL1
39
D
D1, D2, D3, D4, D5, D6, D7, D8 +31

BicOwo40 design files

The KiCad project lives in the alexxpeng/BicOwo40 repository on GitHub; these links point at the commit this page was built from.

BicOwo40: common questions

What microcontroller does the BicOwo40 use?

The BicOwo40 is built around the Pico, from the RP2040/RP2350 family.

How big is the BicOwo40 PCB?

The BicOwo40 measures 257.2 × 92.9 mm, has 2 copper layers and is 1.6 mm thick.

How many components are on the BicOwo40?

81 components, from 9 distinct parts. The full bill of materials is listed on this page.

Where can I download the BicOwo40 design files?

From the alexxpeng/BicOwo40 repository on GitHub, which has the KiCad layout; the links under Design files point to each one.

Can I use the BicOwo40 design in my own project?

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

Can I test firmware for the BicOwo40 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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