ESC (only) keyboard

As you know, Apple removed physical esc key from new MacBook Pro. Ok, I made a device that can enter esc key only.
Controlled by Pro Micro (Arduino compatible), the key cap and body are made by 3D printer.

Materials

Wiring

Pro Micro Cherry
GND 1
2 2

Code

https://github.com/omzn/esc_keyboard

Case