HardLabs

Devboard

onlyth3best·devboard·kicad/devboard.kicad_pcb

Devboard PCB layout, top view — open source RP2040/RP2350 board by onlyth3best

About the Devboard PCB

Devboard is an open source RP2040/RP2350 PCB design by onlyth3best, published on GitHub. It is a 2-layer board measuring 22.5 × 53.7 mm, with 33 components from 18 distinct parts.

Its main chip is the QFN-56-1EP_7X7MM_P0.4MM_EP3.2X3.2MM, from the RP2040/RP2350 family. Other key parts include the SOIC-8_5.3X5.3MM_P1.27MM and TO-92_INLINE. By type, the board carries 17 capacitors, 7 resistors, 4 connectors, 3 ICs, 1 crystal and 1 switch.

It belongs with the dev boards & breakouts designs in this gallery.

From the project

a project for Fallout

Devboard, from the project README
From the project README

Main components on the Devboard

QFN-56-1EP_7X7MM_P0.4MM_EP3.2X3.2MMSOIC-8_5.3X5.3MM_P1.27MMTO-92_INLINE

Devboard bill of materials (BOM)

33 components, 18 distinct parts — part numbers from the project's BOM.

QtyPartRefs
1
QFN-56-1EP_7X7MM_P0.4MM_EP3.2X3.2MM
RP2040
U1
1
SOIC-8_5.3X5.3MM_P1.27MM
W25Q128JVS
U3
1
TO-92_INLINE
MCP1700x-330xxTO
U4
1
CRYSTAL_SMD_3225-4PIN_3.2X2.5MM
12 MHz
Y1
1
USB_C_RECEPTACLE_HRO_TYPE-C-31-M-12
USB_C_Receptacle
J1
2
PINHEADER_1X20_P2.54MM_VERTICAL
Conn_01x20_Pin
J2, J3
1
R_0402_1005METRIC
Conn_01x03_Pin
J4
1
SW_Push
SW1
2
C_0402_1005METRIC
1uF
C1, C10
10
C_0402_1005METRIC
0.1uF
C2, C3, C4, C5, C6, C7, C8, C9 +2
1
C_0402_1005METRIC
10uF
C13
1
C_0402_1005METRIC
100nF
C14
2
C_0402_1005METRIC
33pF
C15, C16
1
0.1uF
C17
2
R_0402_1005METRIC
5.1K
R1, R2
2
R_0402_1005METRIC
R
R3, R4
2
R_0402_1005METRIC
1K
R5, R7
1
R_0402_1005METRIC
10K
R6

Devboard design files

The KiCad project lives in the onlyth3best/devboard repository on GitHub; these links point at the commit this page was built from.

Devboard: common questions

What microcontroller does the Devboard use?

The Devboard is built around the QFN-56-1EP_7X7MM_P0.4MM_EP3.2X3.2MM, from the RP2040/RP2350 family.

How big is the Devboard PCB?

The Devboard measures 22.5 × 53.7 mm, has 2 copper layers and is 1.6 mm thick.

How many components are on the Devboard?

33 components, from 18 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 Devboard design files?

From the onlyth3best/devboard 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 Devboard design in my own project?

The repository has no license, so all rights stay with onlyth3best. Use it as a reference, and ask the author before reusing the design.

Can I test firmware for the Devboard 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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