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Chi py board

ceugbo·PCB-Designs·chipy_board/hardware/layouts/chi_py board.kicad_pcb

Chi py board layout, top view — open source RP2040/RP2350 board by ceugbo

About the Chi py board

Chi py board is an open source RP2040/RP2350 PCB design by ceugbo, published on GitHub. It is a 4-layer board measuring 47.1 × 65 mm, with 41 components from 24 distinct parts.

Its main chip is the RP2350B, from the RP2040/RP2350 family. Other key parts include the W25Q128JVS and TLV75733PDBV. By type, the board carries 16 capacitors, 9 resistors, 4 connectors, 4 diodes, 3 ICs and 2 switches.

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

From the project

Electronic circuits designs using KiCAD

A custom, high-performance microcontroller development board built around the Raspberry Pi RP2350B (QFN-80 package), designed for advanced embedded systems prototyping, flexible peripheral interfacing, and high-speed digital control.

Microcontroller: Raspberry Pi RP2350B (Dual ARM Cortex-M33 / Dual Hazard3 RISC-V processors running up to 150 MHz, with 520 KB of on-chip SRAM). Package: QFN-80, providing access to an expanded set of GPIO pins and dedicated peripherals compared to standard RP2350 variants. Storage & Memory: External Quad-SPI (QSPI) flash memory interface for high-capacity…

Main components on the Chi py board

RP2350BW25Q128JVSTLV75733PDBV

Chi py board bill of materials (BOM)

41 components, 24 distinct parts — part numbers from the project's BOM.

QtyPartRefs
1
RP2350B
U1
1
W25Q128JVS
U2
1
TLV75733PDBV
U3
1
CRYSTAL_GND24_SMALL
Crystal_GND24_Small
Y1
1
USB_C_RECEPTACLE_USB2.0_16P
USB_C_Receptacle_USB2.0_16P
J1
2
CONN_01X24_PIN
Conn_01x24_Pin
J2, J5
1
DEBUG
J4
1
SW_Push
SW1
1
BOOTSEL
SW2
1
D_Schottky
D1
1
PWR_LED
D2
1
PROG_LED
D3
1
D_Zener
D4
1
FerriteBead
FB1
1
3.3μH
L1
2
15P
15p
C1, C2
8
100N
100n
C3, C6, C8, C11, C12, C13, C14, C15
3
1μ
C4, C9, C16
2
10μ
C5, C7
1
4.7μ
C10
Show 4 more
QtyPartRefs
2
27
R1, R2
2
5.1K
R3, R4
3
10K
R5, R6, R7
2
1K
R8, R9

Chi py board design files

The KiCad project lives in the ceugbo/PCB-Designs repository on GitHub; these links point at the commit this page was built from.

Chi py board: common questions

What microcontroller does the Chi py board use?

The Chi py board is built around the RP2350B, from the RP2040/RP2350 family.

How big is the Chi py board?

The Chi py board measures 47.1 × 65 mm, has 4 copper layers and is 1.6 mm thick.

How many components are on the Chi py board?

41 components, from 24 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 Chi py board design files?

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

Can I use the Chi py board design in my own project?

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

Can I test firmware for the Chi py board 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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