This is a simple case for a matrix keypad connected to a ESP-WROOM-32 (30 pin). Parts held in with M2.5 screws. I printed in PETG, but PLA would be fine too.
Matrix keypad - https://www.amazon.com/gp/product/B086ZGKDK9
ESP-WROOM-32 - https://www.amazon.com/gp/product/B0B9G74NNM/
Screws - https://www.amazon.com/gp/product/B0B3J58MMW
The author marked this model as their own original creation.