The ESP32-2432S032C-I board features a 3.2-inch capacitive touchscreen display with a 320x240 pixel resolution. It utilizes an ESP32 processor with integrated Wi-Fi and Bluetooth capabilities. The board incorporates an IP5306 battery charging chip, enabling connection of a lithium-polymer battery (a 3000 mAh, 66x33x11 mm battery is suggested) via a JSP 1.25 mm connector. A single press of the button powers on the board; a double press powers it off. Charging is conveniently achieved via the integrated USB-C port, which also serves as the programming interface. Standalone operation for at least 12 hours is achievable with a 3000 mAh battery.

The necessary “TFT_eSPI” library for display operation is available at: github.com/Bodmer/TFT_eSPI

It must be copied to Documents/Arduino-Sketches/libraries (Windows 11).

The following modifications are required within the “User_Setup.h” file of TFT_eSPI:

#define ST7789_DRIVER

#define TFT_RGB_ORDER TFTBGR

#define TFT_INVERSION_ON

#define TFT_BL 27

For touch functionality, the “TAMC_GT911” library needs to be installed.

An example can be found at Documents/Arduino-Sketches/libraries/TAMC_GT911/examples/TouchPrint.ino (Windows 11).

The printed model was created using PLA filament with default settings.

The enclosure is a single-piece design, requiring no screws or adhesive!

Print time is approximately 46 minutes!

I have continuously refined the enclosure design over time! The dimensions remain unchanged.

Life without a 3D printer is possible, but pointless!