microdoom 

a GAT-compatible def con badge addon 

These are in high demand.
Another run of these will be made before Christmas 2024.

it's doom. it's playable. it's tiny. 

it's expensive, because it's hand assembled.

designed, built and assembled in las vegas, nv.

6 total pcb layers over two PCBs, 4 voltage regulators.

power from usb-c (5volt only, no PD charger) or addon header.

if powering from addon header, usb will power a keyboard (limit 250mA).

originally released at def con 30 in 2022.

working features:

• fully playable doom at 20-35fps
• usb keyboard support
• sound (though kinda awful)
• multiplayer over addon i2c (untested)
• does this all at around 75-85mA total

2024 hopeful features:

• improved sound (thanks to defcon32 rp2350 code)
• improved lcd (thanks to defcon32 rp2350 and other existing code)
• accelerometer and button input (thanks to defcon32 rp2350 code showing me the way)

future planned features:

• reduce power consumption further, if possible
• test multiplayer support
• test and provide instructions for full doom, doom2 wad upload
• finish the hopes and dreams (listed below)

what you get for your money: a fully assembled and tested microdoom addon.

you are also paying for hopes and dreams that true can finish the code, and that the controller module will be completed (all hardware in in stock but code+assembly needs done).

what is the controller, exactly? there is a battery powered, portable host controller for microdoom planned. acrylic stackup with resin printed dpad and buttons, and can be worn as a badge. you plug microdoom into it and have a portable dooming experience. true has all the parts, but needs to do one more pcb rev to fix a small bug and fix the sound chambers for the speakers. supports chaining with type-c usb cables for multiplayer. has rgbleds that fire into your palms, replicating the light values at the edges of the screen. has amazing hand drawn doom art by @alt_bier on the back. design was kinda copied by and!xor team at defcon32.

when it gets done, you'll get one (just pay shipping or get from true at defcon). but no guarantees. all hopes and dreams right now.

When firmware updates are available, they will be announced on X, pirate discord and elsewhere.

please note: the lcd screen is a weak point in the design.
particularly where the ribbon connects to the front of the lcd, it can fail.
this failure can be from impact or from time.
should it fail, find true at supercon or defcon and he will fix it.
if you want to fix it yourself, the lcd is inexpensive. contact true for directions.

circuit, layout and design by true
doom port by some rp2040 engineer
additional code work by cellwizard, true
further code work by defcon32 badge hackers and true