This is my first iteration of the Raspberry pi zero Node and I expect to make some changes based on community feedback. The Idea was to make an enclosure for a raspberry pi zero that runs of of a single 18650 that can be charged in the case.
I also designed a small shelf in the enclosure to hold a piece of RGB led strip with the intent to use the led as a programmable indicator light, though I have yet to install the LED.
If you have any suggestions for ways I can Improve this design or any better components I could use for the charging board please leave a comment.
To assemble the Pi Node I used a few components. I also included affiliate links for each component If you would like to support this and future designs.
I would Also recommend using a male to female header for the Pi's GPIO pins unless you don't mind soldering directly to the Pi.
First I soldered a piece of wire to each of the battery positive and negative terminals on the charging board. Be sure that you your pieces of wire are long enough to reach to the positive and negative sides of the battery holder. for the battery to make sufficient contact with the wires I twisted the ends of each wire into a spiral shape to give it more surface area before I put the wires into the battery holder.
Then I soldered the negative terminal of the charging board to the Pi's ground pin.
For the switch I soldered the positive terminal on the battery charging board to the switch's middle leg. Then I soldered the switches right leg to a piece of wire and that wire to the Pi's 5v pin.
I then mounted the Pi in the enclosure with 4 small screws and placed the charging board into the board mount and pushed it into the three slots on the right side of the enclosure. Next I squeezed the switch into the left side hole and placed the positive and negative wires from the charging board to their respective sides of the battery charging side of the enclosure where they slot into the tabs sticking up from the positive and negative side.
WARNING: be sure that when you insert the battery that you have correctly aligned the positive and negative side otherwise you risk damaging your Pi.
Note: To firmly secure the charging board to the holder and prevent the board from moving while plugging in a micro usb, I used two small drops of hot glue to secure it.