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Rp2350b pico

Charading·rp2350b-pico

Rp2350b pico PCB layout, top view — open source RP2040/RP2350 board by Charading

About the Rp2350b pico PCB

Rp2350b pico is an open source RP2040/RP2350 PCB design by Charading, published on GitHub. It is a 4-layer board measuring 56.8 × 21 mm, with 56 components from 32 distinct parts.

Its main chip is the C42415655, from the RP2040/RP2350 family. Other key parts include the C427602, C97521 and ESP-PSRAM32. By type, the board carries 25 capacitors, 13 resistors, 4 ICs, 4 diodes, 3 connectors and 1 crystal.

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

From the project

I wanted a board similar to the rp2040 pico so i just designed my own, it's extended by two more pins, in order to break out a ton of gpio and also all 8 ADC pins

This is a custom RP2350B development board designed to match the Raspberry Pi Pico form factor. It keeps a similar form factor but is extended by a few pins, in order to break out all 8 analog gpio.

Designed for experimentation and easy migration from RP2040 to RP2350 as I wanted more analog pins for a project. Inspiration taken from pico-stretch by jvanderberg

Rp2350b pico, from the project README
From the project README

Main components on the Rp2350b pico

C42415655C427602C97521ESP-PSRAM32

Rp2350b pico bill of materials (BOM)

56 components, 32 distinct parts — part numbers from the project's BOM.

QtyPartRefs
1
C42415655
~
Raspberry Pi(树莓派)
U1
1
C427602
~
MICRONE(南京微盟)
U3
1
C97521
Winbond W25Q128JVSIQ
Winbond Elec
U4
1
ESP-PSRAM32
U6
1
C20625731
~
ABRACON
X1
2
CONN_01X32_MOUNTINGPIN
Conn_01x32_MountingPin
J1, J3
1
CONN_01X03_PIN
Conn_01x03_Pin
J2
2
K2-1808SN-A4SW-01
韩国韩荣
Boot1, Reset1
1
Red
Hubei KENTO Elec
PWR_LED1
1
C2765186
~
SHOU HAN(首韩)
USB1
1
C2286
Red
Hubei KENTO Elec
LED1
1
C110493
~
DIODES(美台)
D1
2
RCLAMP0521P.TCT-MS
MSKSEMI(美森科)
D2, D3
1
WS2812B-2020
D4
1
C42411119
~
ABRACON
L1
14
100NF
100nF
SAMSUNG(三星)
C1, C2, C3, C4, C5, C6, C7, C8 +6
2
4.7UF
4.7uF
Samsung Electro-Mechanics
C10, C12
2
4.7UF
4.7uF
Samsung Electro-Mechanics
C11, C19
2
15PF
15pF
FH(风华)
C17, C18
1
100NF
100nF
Samsung Electro-Mechanics
C22
Show 12 more
QtyPartRefs
2
10UF
10uF
Samsung Electro-Mechanics
C37, C40
2
100NF
100nF
YAGEO
C38, C39
2
5.1kΩ
UNI-ROYAL(Uniroyal Elec)
R1, R4
2
33Ω
UNI-ROYAL(Uniroyal Elec)
R2, R3
1
1kΩ
UNI-ROYAL(Uniroyal Elec)
R5
1
33Ω
UNI-ROYAL(厚声)
R6
1
1Ω
UNI-ROYAL(Uniroyal Elec)
R7
1
200Ω
UNI-ROYAL(Uniroyal Elec)
R8
2
2kΩ
UNI-ROYAL(Uniroyal Elec)
R9, R12
1
100kΩ
UNI-ROYAL(Uniroyal Elec)
R11
1
10kΩ
UNI-ROYAL(Uniroyal Elec)
R14
1
1kΩ
UNI-ROYAL(Uniroyal Elec)
R28

Rp2350b pico design files

The KiCad project lives in the Charading/rp2350b-pico repository on GitHub; these links point at the commit this page was built from.

Rp2350b pico: common questions

What microcontroller does the Rp2350b pico use?

The Rp2350b pico is built around the C42415655, from the RP2040/RP2350 family.

How big is the Rp2350b pico PCB?

The Rp2350b pico measures 56.8 × 21 mm, has 4 copper layers and is 1.6 mm thick.

How many components are on the Rp2350b pico?

56 components, from 32 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 Rp2350b pico design files?

From the Charading/rp2350b-pico 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 Rp2350b pico design in my own project?

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

Can I test firmware for the Rp2350b pico 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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