Power Your Pi with an ATX PSU using this HAT | #piday

here at Hackaday.io.

The PiRyte Mini ATX PSU allows you to power your Raspberry Pi and project boards using an inexpensive desktop power supply. Additionally, it enforces a controlled shutdown so that the Pi’s operating system can properly close down without corrupting disk files.

Specifications:

  • Uses inexpensive off the shelf ATX desktop supply. Works with both 20 pin and 24 pin connectors.
  • Enables operating system to perform controlled shutdown and reboots to minimize disk file corruption.
  • Back powers the Raspberry Pi with dedicated 5 VDC line.
  • Screw terminals break out +12 VDC and +5 VDC for user projects.
  • Provides a prototyping area with access to +12 VDC, -12 VDC, +5 VDC, +3.3 VDC, and Ground
  • Conforms to the Raspberry Pi Foundation’s HAT footprint.
  • 40 Pin GPIO stacking header allows use of other HAT conforming boards.
  • Comes as a DYI kit to keep costs low.

Read more.

[h/t Drew for sending this in!]


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1 Comment

  1. scatterbrained2

    Why not tie all of the supply rail pins on the ATX together? That way a bad connection or cable crimp on one pin won’t make it not work and there is less current/temp rise on any one pin.

    Since you use pin 21 for the PI +5, I think an old 20 pin ATX supply won’t work with this board.

    There’s not any logic for backpower protection. See https://github.com/raspberrypi/hats/blob/master/designguide.md for what’s recommended.

    I’ve run into cheap ATX supplies in the past that will not come up without some minimum load on the +12V (or sometimes +5). Easy work around is to connect a +12V auto bulb to provide a load.

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