Raspberry Pi case with buck converter and pass through power for 3.5' external

This case is designed for a Raspberry Pi 3B+ but can be modified pretty easily for a Pi 4.

The idea is to have one 12v input to the Pi case which is split into a 12v feed for the HDD and stepped down to 5.1v for the Pi. In addition to this, there is also space in the bottom of the case for the excess USB cable that connects the Pi to the HDD.

Here is a link to the code that I wrote so you can use the buttons to shutdown and reboot the Pi.

Parts list:

• 1 x Raspberry Pi 3b+

• 1 x Buck converter link

• One red LED and resister

• 2 x Push button switches link

• Heat shrink/electrical tape

• Female headers link

• 8 x M2.5' screws and nuts for mounting the Pi and buck converter

• 4 x M3 screws to attach the side panel

• 5.5mm x 21.1mm DC Connector Plug with unterminated Power Cord link

• 5.5mm x 2.1mm female connector link