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ATX-Power breakout

Duckle29·ATX-Power-breakout

ATX-Power breakout layout, top view — open source Raspberry Pi board by Duckle29

About the ATX-Power breakout

ATX-Power breakout is an open source Raspberry Pi PCB design by Duckle29, published on GitHub under the MIT license. It is a 2-layer board measuring 67 × 59.5 mm, with 23 components from 17 distinct parts.

Its main chip is the RASPBERRY_PI_2_3, from the Raspberry Pi family. By type, the board carries 13 connectors, 6 resistors, 3 jumpers and 1 transistor.

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

From the project

This is a breakout board for an ATX PSU. It's meant to plug onto an RPi and offer PSU control either via the pi or an external controller.

This is just a simple board that breaks out the different rails of an ATX 24pin connector. It's mainly intented to be used for powering a Raspberry Pi and a 3D printer.

The board includes an EPS 4pin connector as well, allowing for up to 32A on the 12v rail. If you slightly overrun the rated 8A per cable, the 3 12v connectors will handle up to 36A (12A each). This is a 12.5% overload at 9A per cable. Most good cables/connectors should handle that.

ATX-Power breakout, from the project README
From the project README

ATX-Power breakout bill of materials (BOM)

23 components, 17 distinct parts — part numbers from the project's BOM.

QtyPartRefs
1
Q_NPN_BCE
Q1
1
I2C
J1
1
EPS
J2
1
1050570001
J3
1
RASPBERRY_PI_2_3
Raspberry_Pi_2_3
J4
1
ATX24PIN
ATX24pin
J5
3
12V out
J6, J11, J12
1
pson ext
J7
1
5V out
J8
1
5VSB out
J9
1
3V3 out
J10
1
btn
J13
2
powerSelect
JP1, JP2
1
PSU_control
JP3
1
5K6
R1
4
10K
10k
R2, R3, R5, R6
1
1k
R4

ATX-Power breakout design files

The KiCad project lives in the Duckle29/ATX-Power-breakout repository on GitHub; these links point at the commit this page was built from.

ATX-Power breakout: common questions

What microcontroller does the ATX-Power breakout use?

The ATX-Power breakout is built around the RASPBERRY_PI_2_3, from the Raspberry Pi family.

How big is the ATX-Power breakout?

The ATX-Power breakout measures 67 × 59.5 mm, has 2 copper layers and is 1.6 mm thick.

How many components are on the ATX-Power breakout?

23 components, from 17 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 ATX-Power breakout design files?

From the Duckle29/ATX-Power-breakout repository on GitHub, which has the KiCad layout and the BOM; the links under Design files point to each one.

Can I use the ATX-Power breakout design in my own project?

Yes, under the terms of its MIT license, which Duckle29 chose for the repository.

Can I test firmware for the ATX-Power breakout 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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