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Centauri2350

hridcode·centauri2350·design/centauri.kicad_pcb

Centauri2350 PCB layout, top view — open source Raspberry Pi board by hridcode
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About the Centauri2350 PCB

Centauri2350 is an open source Raspberry Pi PCB design by hridcode, published on GitHub. It is a 2-layer board measuring 28.2 × 71.3 mm, with 60 components from 22 distinct parts.

Its main chip is the C39843328, from the Raspberry Pi family. Other key parts include the C107671, C181692 and C5446. By type, the board carries 38 capacitors, 11 resistors, 4 ICs, 2 switches, 2 inductors and 1 crystal.

It belongs with the audio and power & battery designs in this gallery.

From the project

Centauri2350 is a microcontroller board based off the RP2354B chip. It has 44 usable GPIO pins, plus battery charging and an audio DAC.

Centauri2350 is a microcontroller board based off the RP2354B chip. It has 44 usable GPIO pins, plus battery charging and an audio DAC.

This is derived from my old board named "Whistle" (which honestly was trash lmao)

- 150MHz clock speed - 520KB RAM - 2MB flash memory - 48 GPIOs (4 used for onboard LED + I²S connection) - 8 analog-capable pins - LiPo battery charging (IP5306) - Audio DAC (PCM5102A) - Debug pins - USB-C connector

Centauri2350, from the project README
From the project README

Main components on the Centauri2350

C107671C181692C39843328C5446

Centauri2350 bill of materials (BOM)

60 components, 22 distinct parts — part numbers from the project's BOM.

QtyPartRefs
1
C107671
PCM5102A
U1
1
C181692
IP5306
U2
1
C39843328
RP2354B
U3
1
C5446
XC6206PxxxMR
U4
1
C9002
Crystal_GND24
Y1
1
C165948
USB_C_Receptacle_USB2.0_14P
J1
2
SW_Push
SW1, SW2
1
C2286
LED
D1
1
C84474
3.3uH
L1
1
C84468
1uH
L2
3
C23733
4.7uF
C1, C2, C3
2
C1554
20pF
C4, C5
16
C1525
0.1uF
C6, C7, C8, C12, C13, C14, C15, C16 +8
10
C15525
10uF
C9, C10, C23, C24, C25, C26, C30, C31 +2
3
C59461
22uF
C11, C21, C22
4
C12530
2.2uF
C35, C36, C37, C38
2
C25117
470
R0, R10
2
C25905
5.1K
R1, R2
2
C25190
27
R3, R4
1
C25105
33
R5
Show 2 more
QtyPartRefs
2
C11702
1K
R6, R7
2
C22977
2
R8, R9

Centauri2350 design files

The KiCad project lives in the hridcode/centauri2350 repository on GitHub; these links point at the commit this page was built from.

Centauri2350: common questions

What microcontroller does the Centauri2350 use?

The Centauri2350 is built around the C39843328, from the Raspberry Pi family.

How big is the Centauri2350 PCB?

The Centauri2350 measures 28.2 × 71.3 mm, has 2 copper layers and is 1.6 mm thick.

How many components are on the Centauri2350?

60 components, from 22 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 Centauri2350 design files?

From the hridcode/centauri2350 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 Centauri2350 design in my own project?

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

Can I test firmware for the Centauri2350 without the hardware?

Yes. HardLabs builds a simulation of the board from its netlist and BOM, so you can run and debug Raspberry Pi firmware against it before you order a PCB.

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