What is it?
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.
- 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.
- Power up: LED pulsates slowly
- Reboot: LED pulsates slowly
- Shutdown: LED pulsates slowly until boot up script has ended then pulsates quickly for 10 seconds before shutting off power to the Pi
- Hard Shutdown: LED dims entire time push button is depressed. Turns off power after 10 seconds.
Why did I make it?
My projects often need multiple voltages in addition to the 3.3 VDC or 5 VDC supplies usually provided by the Raspberry Pi. Existing ATX type desktop power supplies provide the kind of power that I can use. Additionally, I needed my board to be a HAT conforming board so that I can build controller stacks using the other boards I designed as well as third party boards. I am very particular in using stacked configurations because a stacked configuration is physically and electrically more robust. Finally, I wanted to mitigate the chance of file corruption by just turning off my Raspberry Pi without doing a controlled shutdown. This board allows me to do this.
View on Tindie: Mini ATX PSU