HardLabs

Hackxpansion

hackclub·hackxpansion·hardware/hackxpansion/pcb/hackxpansion.kicad_pcb

Hackxpansion PCB layout, top view — open source RP2040/RP2350 board by hackclub
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About the Hackxpansion PCB

Hackxpansion is an open source RP2040/RP2350 PCB design by hackclub, published on GitHub under the GPL-3.0 license. It is a 4-layer board measuring 52 × 43 mm, with 73 components from 32 distinct parts.

Its main chip is the RP2354B, from the RP2040/RP2350 family. Other key parts include the ADS7128IRTET, SPX3819M5-L-3-3, BQ24075RGT and USBLC6-2SC6. By type, the board carries 29 resistors, 24 capacitors, 6 connectors, 5 ICs, 3 switches and 2 transistors.

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

From the project

A modular game console based on RP2354

- Resistor based module identification at start up - 2" 240x320 ST7789 LCD panel - RP2354 MCU - Easily adaptable module standard - Rust firmware with embassy and slint-ui

I really like the idea of modules, and modular things, and making people work together, so I made this.

The console has two 4 layer PCBs designed in KiCAD, a main-board and a daughter-board, designed for JLC's basic process.

Hackxpansion, from the project README
From the project README

Main components on the Hackxpansion

ADS7128IRTETRP2354BSPX3819M5-L-3-3BQ24075RGTUSBLC6-2SC6

Hackxpansion bill of materials (BOM)

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

QtyPartRefs
1
ADS7128IRTET
IC1
1
RP2354B
U2
1
SPX3819M5-L-3-3
U5
1
BQ24075RGT
U7
1
USBLC6-2SC6
U8
1
BSS138
Q1
1
2N7002
Q2
1
ABM8-272-T3
Y1
4
533981471
MOLEX
CN1, CN2, CN3, CN4
1
USB_C_Receptacle_USB2.0_14P
J2
1
Conn_ARM_JTAG_SWD_10
J3
1
AFC08-S12ECA-00
JS(钜硕电子)
FPC1
2
SW_Push
SW1, SW2
1
SW_On_Off
SW3
1
LED
D1
1
3u3
L1
11
100n
C1, C3, C4, C5, C6, C7, C8, C9 +3
6
4u7
C2, C14, C21, C22, C23, C24
3
1u
C13, C18, C20
2
4u7
C15, C16
Show 12 more
QtyPartRefs
2
15p
C17, C19
3
1k
R1, R3, R6
1
33R
R2
2
27R
R4, R5
1
10R
R7
11
10k
R8, R14, R18, R19, R20, R21, R24, R30 +3
2
5k1
R9, R10
4
5R1
R11, R12, R36, R37
1
100R
R13
1
100k
R15
1
3k3
R22
2
1k5
R23, R25

Hackxpansion design files

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

Hackxpansion: common questions

What microcontroller does the Hackxpansion use?

The Hackxpansion is built around the RP2354B, from the RP2040/RP2350 family.

How big is the Hackxpansion PCB?

The Hackxpansion measures 52 × 43 mm, has 4 copper layers and is 1.6062 mm thick.

How many components are on the Hackxpansion?

73 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 Hackxpansion design files?

From the hackclub/hackxpansion 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 Hackxpansion design in my own project?

Yes, under the terms of its GPL-3.0 license, which hackclub chose for the repository.

Can I test firmware for the Hackxpansion 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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