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2 layers29.7 × 51 mmDevboard, the printed circuit board in 3D

idk a devboard

Size
29.7 × 51 mm
Copper layers
2
Thickness
1.6 mm
Parts
47
Nets
80
Pads
396
Tracks, vias
722, 40
Pours
2
Routed
Yes
KiCad
KiCad 10.0 (file 20260206)
Created
24 Sep 2026
Updated
11 Oct 2026

Overview

Devboard is an open-source printed circuit board by LeoMos10, from the LeoMos10/Devboard repository on GitHub, published under the GPL-2.0 licence. It is a 2-layer board of 29.7 × 51 mm with 47 parts on 80 nets, routed with 722 tracks and 40 vias.

It is built around the RP2354B. Its parts include 17 capacitors, 11 resistors, 6 connectors, 4 switches and 3 diodes. It belongs with the microcontroller boards boards and the RP2350 boards of this library.

Main components

1

README

README.md

Devboard

Devboard is a custom Raspberry Pi RP2354B development board based on the Hack Club devboard guide. The schematic and PCB are being designed in KiCad.

Devboard mini art

Why this board?

I wanted to design a microcontroller board itself, with USB-C, GPIO, onboard buttons and status LEDs.

Parts

  • Raspberry Pi RP2354B microcontroller
  • USB-C connector
  • 3.3 V power supply with an inductor and a Schottky diode
  • Yellow LED and a RGB LED
  • BOOTSEL, RUN and 2 user buttons
  • 2.54 mm pin headers, plus additional headers, SWD debug probe

CAD Model

No case yet.

PCB

The KiCad project is in PCB/. Open the KiCad project to view the schematic and board together. Custom footprints and 3D models are stored beside the KiCad files.

Schematic

The current schematic includes the RP2354B circuit, USB-C, power, buttons and LEDs.

Devboard schematic

Pinout

Board

The schematic now matches the PCB references, footprints and electrical nets. Assembly files still need to be checked before ordering.

Front and rear of the PCB:

PCB front

PCB rear

Copper layers:

All copper layers

Front copper layer

Back copper layer

Firmware Overview

Firmware has not been added yet.

BOM

The BOM for one board includes JLCPCB links and the quantities in the saved parts cart. It is a design BOM; the JLCPCB assembly BOM and placement file are still pending.

AI usage

AI assistance was used for parts research(both selcetin what component and find th ecorrect one on sites),also for KiCad advice. The schematic, footprint and PCB still was done by hand by me.

Extra stuff

Its questionable to me too very questonable

Parts

47
QtyValueFootprintReferences
90.1uFCapacitor_SMD:C_0402_1005MetricC4, C5, C10, C11, C12, C13, C14, C15, C16
4330Resistor_SMD:R_0402_1005MetricR6, R7, R8, R9
310uFCapacitor_SMD:C_0603_1608MetricC1, C2, C3
215pFCapacitor_SMD:C_0402_1005MetricC7, C8
21kResistor_SMD:R_0402_1005MetricR5, R10
227Resistor_SMD:R_0402_1005MetricR3, R4
24,7uFCapacitor_SMD:C_0603_1608MetricC6, C17
25.1kResistor_SMD:R_0402_1005MetricR1, R2
2Conn_01x04Connector_PinHeader_2.54mm:PinHeader_1x04_P2.54mm_VerticalJ3, J5
2SW_PushButton_Switch_SMD:SW_SPST_TS-1088-xR020SW3, SW4
11uFCapacitor_SMD:C_0402_1005MetricC9
13,3uHEasyEDA_Imported:IND-SMD_L2.0-W1.6_AOTA-B201610S3R3-101-TL1
133Resistor_SMD:R_0402_1005MetricR11
1ABM8-272-T3, 12 MHzCrystal:Crystal_SMD_3225-4Pin_3.2x2.5mmY1
1Conn_01x03Connector_PinHeader_2.54mm:PinHeader_1x03_P2.54mm_VerticalJ4
1Conn_01x20_Leftleo/kicad_vari:goood_PinHeader_1x20_P2.54mm_Vertical_left_cutom_padJ2
1Conn_01x20_Rightleo/kicad_vari:goood_PinHeader_1x20_P2.54mm_Vertical_right_cutom_padJ6
1D_SchottkyDiode_SMD:D_SOD-123D1
1LEDLED_SMD:LED_0805_2012MetricD3
1LED_ARGBEasyEDA_Imported:LED-ARRAY-SMD_4P-L3.2-W2.7-TL-RD_TJ-S3528D2
1MCP1700x-330xxTTPackage_TO_SOT_SMD:SOT-23U3
1RP2354BPackage_DFN_QFN:QFN-80-1EP_10x10mm_P0.4mm_EP3.4x3.4mmU1
1SW_Push_BOOTSELButton_Switch_SMD:SW_SPST_TS-1088-xR020SW1
1SW_Push_RUNButton_Switch_SMD:SW_SPST_TS-1088-xR020SW2
1USB_C_Receptacle_USB2.0_16PConnector_USB:USB_C_Receptacle_HRO_TYPE-C-31-M-12J1

The 45 most common of 47 parts.

Questions

How big is the Devboard PCB?

It measures 29.7 × 51 mm and has 2 copper layers, 1.6 mm thick.

What parts does the Devboard use?

47 parts, built around the RP2354B. The full list of its parts is on this page, with links to each part's symbol and footprint where PCBKit's library has them.

Where can I download the Devboard KiCad files?

From the LeoMos10/Devboard repository on GitHub, at the commit this page was made from: the board is PCB/devboard.kicad_pcb and its schematic PCB/devboard.kicad_sch. PCBKit opens the board in the browser, with nothing to install.

Can I use the Devboard design in my own project?

Its repository publishes it under the GPL-2.0 licence: you may reuse it on that licence's terms (keep the author's notice, and for a copyleft licence share your changes alike).

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