In the actual helmet?
I am going to be using a disassembled VuFine display… (little, hi-res, lcd display with a ‘aspheric concave fresnel lenses’, with the correct diopter rating)… has a direct (mini) HMDI input, which makes things much easier!
I designed some custom PCB’s as well for the repulsors, arc reactor…etc… so they are communicate (wire-lessly) with the HUD circuit (Arduino & RPi)
I have not tried to port things to an RPi Zero… (not sure if it has enough power?)… but I like the smaller footprint.
I really enjoy trying to bring together my ‘2’ worlds…
code and electronics (home automation, props…etc)