DCC WiTController WiThrottle Case

This is a case for the DCC-Ex WiTController.
https://dcc-ex.com/throttles/hardware/witcontroller.html
The WiTcontroller is a simple DIY, handheld controller that talks to a WiThrottle Server (JMRI, DCC++EX and others) using the WiThrottle protocol to control DCC model trains.
Source code and general instructions can be found here https://github.com/flash62au/WiTcontroller

Note: this version of the WiTController uses a 1.3” OLED and a different matrix keyboard to that specified on the GitHub page.

The main parts are readily available from AliExpress as follows
Wemos ESP32 Lite USB-C https://www.aliexpress.com/item/4000038780903.html
3*4 Matrix Keypad https://www.aliexpress.com/item/4000873237364.html
1.3” OLED (4 pin IIC version) https://www.aliexpress.com/item/1005001621782442.html
KY-040 Rotary encoder with 15mm knob (threaded version) https://www.aliexpress.com/item/1005004607438198.html
153450 Battery https://www.aliexpress.com/item/32396436654.html
SS12F15 Slid