Enclosed ESP32 Based Game Controller

Hello all!

I am once again back with another small project (I say that this is small but it still took me 3 months from start to finish to complete haha). As you might see, this is practically a clone of the Xbox One (?) controller.

Its a bit of a cram as you might see in the second picture but it houses a TP4056 Battery charger-protector IC, some custom prototype board PCBs (They are not hard to make, also I am using tactile buttons here but silicone buttons should also work, I just didn't have them available)

The main part of the show is the ESP32 dev board. You might ask why I didn't use the chip instead and to that I reply: I am not good at soldering or desoldering, this is just a side project and I used what I had. This is also exactly why I used shift registers instead of counters to drive all the 16 buttons using only 4 pins :D

The ESP32 is not the most efficient IC ever but it gives 2-3 hours of battery life with the 330mAh LiPo cell I have in there (on a side note,