HardLabs

XIAO

dhirptl·MacroPad·PCB/OPL_Kicad_Library-master/OPL_Kicad_Library-master/XIAO Family/XIAO.kicad_pcb

XIAO PCB layout, top view — open source RP2040/RP2350 board by dhirptl
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About the XIAO PCB

XIAO is an open source RP2040/RP2350 PCB design by dhirptl, published on GitHub under the MIT license. It is a 2-layer board measuring 203.1 × 125.1 mm, with 21 components from 21 distinct parts.

Its main chip is the XIAO-RP2040-SMD, from the RP2040/RP2350 family. Other key parts include the XIAO-SAMD21-SMD, XIAO-nRF52840-SMD, XIAO-SAMD21-DIP, XIAO-RP2040-DIP and XIAO-nRF52840-DIP.

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

From the project

MacroPad designed with KiCad and Fusion360

A custom 4-key macropad with 2 rotary encoders and an OLED display, powered by the Seeed XIAO RP2040. Designed with KiCad, Fusion360 and VsCode ## Bill of Materials (BOM) 1x Seeed XIAO RP2040 4x Cherry MX-style Switches 2x EC11 Rotary Encoders 1x 0.91" OLED Display (I2C) 2x SK6812 MINI-E LEDs 1x 3D Printed Case

A view of the 3D printed enclosure designed in Fusion 360.

XIAO, from the project README
From the project README

Main components on the XIAO

XIAO-SAMD21-SMDXIAO-RP2040-SMDXIAO-nRF52840-SMDXIAO-SAMD21-DIPXIAO-RP2040-DIPXIAO-nRF52840-DIPXIAO-ESP32-C6-SMDXIAO-ESP32-C3-SMDXIAO-ESP32-S3-SMDXIAO-ESP32-C6-DIPXIAO-ESP32-S3-DIPXIAO-ESP32-C3-DIPXIAO-RP2350-SMDXIAO-R4-SMDXIAO-RP2350-DIPXIAO-R4-DIPXIAO-ESP32-C5-SMDXIAO-ESP32-S3-Plus-SMDXIAO-MG24-SMDXIAO-nRF54l15-SMDXIAO-nRF52840-Plus-SMD

XIAO bill of materials (BOM)

21 components, 21 distinct parts.

QtyPartRefs
1
XIAO-SAMD21-SMD
U1
1
XIAO-RP2040-SMD
U2
1
XIAO-nRF52840-SMD
U3
1
XIAO-SAMD21-DIP
U4
1
XIAO-RP2040-DIP
U5
1
XIAO-nRF52840-DIP
U6
1
XIAO-ESP32-C6-SMD
U7
1
XIAO-ESP32-C3-SMD
U8
1
XIAO-ESP32-S3-SMD
U9
1
XIAO-ESP32-C6-DIP
U10
1
XIAO-ESP32-S3-DIP
U11
1
XIAO-ESP32-C3-DIP
U12
1
XIAO-RP2350-SMD
U13
1
XIAO-R4-SMD
U14
1
XIAO-RP2350-DIP
U16
1
XIAO-R4-DIP
U17
1
XIAO-ESP32-C5-SMD
U18
1
XIAO-ESP32-S3-Plus-SMD
U19
1
XIAO-MG24-SMD
U20
1
XIAO-nRF54l15-SMD
U21
Show 1 more
QtyPartRefs
1
XIAO-nRF52840-Plus-SMD
U22

XIAO design files

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

XIAO: common questions

What microcontroller does the XIAO use?

The XIAO is built around the XIAO-RP2040-SMD, from the RP2040/RP2350 family.

How big is the XIAO PCB?

The XIAO measures 203.1 × 125.1 mm, has 2 copper layers and is 1.6 mm thick.

How many components are on the XIAO?

21 components, from 21 distinct parts. The full bill of materials is listed on this page.

Where can I download the XIAO design files?

From the dhirptl/MacroPad repository on GitHub, which has the KiCad layout and the schematic; the links under Design files point to each one.

Can I use the XIAO design in my own project?

Yes, under the terms of its MIT license, which dhirptl chose for the repository.

Can I test firmware for the XIAO 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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