HardLabs

HackPad-V4

sudo-apt-install-tap·HackPad-V4·pcb/pcb.kicad_pcb

HackPad-V4 PCB layout, top view — open source RP2040/RP2350 board by sudo-apt-install-tap

About the HackPad-V4 PCB

HackPad-V4 is an open source RP2040/RP2350 PCB design by sudo-apt-install-tap, published on GitHub under the GPL-3.0 license. It is a 2-layer board measuring 60 × 81.6 mm, with 29 components from 5 distinct parts.

Its main chip is the XIAO-RP2040-DIP, from the RP2040/RP2350 family. Other key parts include the OLED_0.91_I2C. By type, the board carries 18 diodes, 9 switches and 2 ICs.

Main components on the HackPad-V4

XIAO-RP2040-DIPOLED_0.91_I2C

HackPad-V4 bill of materials (BOM)

29 components, 5 distinct parts.

QtyPartRefs
1
XIAO-RP2040-DIP
U1
1
OLED_0.91_I2C
U2
9
SW_Push_45deg
SW1, SW2, SW3, SW4, SW5, SW6, SW7, SW8 +1
9
D
D1, D2, D3, D4, D5, D6, D7, D8 +1
9
SK6812MINI-E
D10, D11, D12, D13, D14, D15, D16, D17 +1

HackPad-V4 design files

The KiCad project lives in the sudo-apt-install-tap/HackPad-V4 repository on GitHub; these links point at the commit this page was built from.

HackPad-V4: common questions

What microcontroller does the HackPad-V4 use?

The HackPad-V4 is built around the XIAO-RP2040-DIP, from the RP2040/RP2350 family.

How big is the HackPad-V4 PCB?

The HackPad-V4 measures 60 × 81.6 mm, has 2 copper layers and is 1.6 mm thick.

How many components are on the HackPad-V4?

29 components, from 5 distinct parts. The full bill of materials is listed on this page.

Where can I download the HackPad-V4 design files?

From the sudo-apt-install-tap/HackPad-V4 repository on GitHub, which has the KiCad layout and the schematic; the links under Design files point to each one.

Can I use the HackPad-V4 design in my own project?

Yes, under the terms of its GPL-3.0 license, which sudo-apt-install-tap chose for the repository.

Can I test firmware for the HackPad-V4 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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