12/20/2025 - Started the project

Yesterday and today I started the project. I thought how to structure everything and set some design rules. I'm putting everything in a GitHub repo from the beginning.
Then I started designing some of the modules. I designed both Input modules, the nand module and the output module. They are mostly done except some minor tweaks.

Input module with USBC

Normal input module

Nand module

Output module

12/26/2025 - Designed the Input Modules

I designed two input modules: One has USB C and the other one can be attached to the first one and be powered by it. Since the design is modular you can stack as many input modules as you want (theoretically).


This is the Input module with USB C. It was really challenging to fit all the components on one side and eventually I had to make it dual layer because I just couldn't connect the GND properly.

This is the "normal" input module which was way easier to design with less components. It is based on the USB C version.

12/28/2025 - Designed the cases for the Input modules

I designed a case for both of the input modules so that they will connect to each other more robustly.
I designed them in a way so that they are really easily 3d printable with no overhangs

12/30/2025 - Designed the schematic for some of the Logic Gates

I started designing some of the logic gates. The hardest part was deciding which components I would use.
In the end I settled on using a mix of mosfets and integrated circuits since they are cheap and very versatile. I also spend a lot of time on researching the functionality of the gates and how to implement them. Furthermore at first I forgot to implement the LEDs that will show the Input and Output signals in a way that they don't cause a voltage drop (wiring them parallel).

The schematic for the AND gate

The schematic for the NOR gate

The schematic for the NOT gate