HardLabs

Devbackup

espcaa·clicky-devboard·kicad/archive-first-pcb/devbackup.kicad_pcb

Devbackup PCB layout, top view — open source RP2040/RP2350 board by espcaa
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About the Devbackup PCB

Devbackup is an open source RP2040/RP2350 PCB design by espcaa, published on GitHub. It is a 2-layer board measuring 33.6 × 25.4 mm, with 41 components from 20 distinct parts.

Its main chip is the RP2350A-QFN60, from the RP2040/RP2350 family. Other key parts include the AP63203WU-7, GT-USB-7010ASV, W25Q64JVSSIQ_C179171 and ABM8-272-T3_C20625731. By type, the board carries 22 capacitors, 8 resistors, 5 ICs, 2 connectors, 2 switches and 2 inductors.

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

From the project

a rp2350 based devboard with mechanical switches!

This is a devboard based on the RP2350 chip (the rp2040's successor) with three mechanical switches, with every gpio exposed on pin headers + extras like 3v3 and vbus. It was entirely designed in Kicad and everything is open source! 4 layer board that can be manufactured with normal jlcpcb tolerances.\ \

- RP2350 - 3x Cherry MX switches - Recommended abracon crystal & inductors - AP63203WU-7 for the 5v to 3v3 conversion - 1x23 pin headers - W25Q64JVSSIQ_C179171 chip for the flash (64mb) - a usb-c connector

Devbackup, from the project README
From the project README

Main components on the Devbackup

AP63203WU-7GT-USB-7010ASVW25Q64JVSSIQ_C179171ABM8-272-T3_C20625731RP2350A-QFN60

Devbackup bill of materials (BOM)

41 components, 20 distinct parts — part numbers from the project's BOM.

QtyPartRefs
1
AP63203WU-7
U1
1
GT-USB-7010ASV
U2
1
W25Q64JVSSIQ_C179171
U4
1
ABM8-272-T3_C20625731
U5
1
RP2350A-QFN60
U6
2
CONN_01X23_PIN
Conn_01x12_Pin
J1, J2
2
SW_Push
SW1, SW2
1
3.9UH
47uh
L1
1
3.3U
3.3u
L2
1
10UF
10uf
C1
1
100NF
100nf
C2
2
22UF
22uf
C3, C4
3
4.7U
4.7u
C5, C6, C7
13
100N
100n
C8, C9, C10, C11, C13, C14, C15, C16 +5
2
15P
15p
C23, C24
1
5.1K
5.1k
R1
1
33
R2
1
10K
10k
R3
3
1k
R4, R5, R8
2
27
R6, R7

Devbackup design files

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

Devbackup: common questions

What microcontroller does the Devbackup use?

The Devbackup is built around the RP2350A-QFN60, from the RP2040/RP2350 family.

How big is the Devbackup PCB?

The Devbackup measures 33.6 × 25.4 mm, has 2 copper layers and is 1.6 mm thick.

How many components are on the Devbackup?

41 components, from 20 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 Devbackup design files?

From the espcaa/clicky-devboard repository on GitHub, which has the KiCad layout and the BOM; the links under Design files point to each one.

Can I use the Devbackup design in my own project?

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

Can I test firmware for the Devbackup 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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