Expanse Backpack with Arduino Display

This is the control panel for an Expanse "O2 Backpack". Decals, side handles, and upper hose plate included.

The v8 design is made for a "TFT FeatherWing - 2.4" 320x240 Touchscreen For All Feathers" display from Adafruit:
https://www.adafruit.com/product/3315

The code for the Arduino is at:
https://github.com/mperino/ExpanseAirTank
The display bars count down over time, and turn from Cyan, to Yellow, to Red as your "Air" exponentially decays :)

The adapter glues between the backpack and the control panel. Current design you trace the adapter profile, and cut the backpack so that it sticks through.
There are .svg Stickers for your vinyl cutter.

The backpack is a "Carbon Fiber Motorcycle Backpack Riding Bag MC Hard Shell Kawasaki Turtle Bag" on ebay $40.
Mine had "Moto Centric" on it.

Print instructions

I print all parts in PETg, I print the buttons in Red and Silver. Trace and cut out the hole for the adapter plate. Glue it in place on the inside with black shoe goo.