Regarding software support, the board can be programmed with ESP-IDF, Arduino IDE, and MicroPython, which are available from their respective websites. Additional documentation, such as the pinout ...

This 400 WS2812b LED matrix display uses an ESP32 to produce the following features: Time and Temperature: Time can be 12/24 (military) hour Inside or outside temperature (or both) in °F or °C ...

Not that we’re complaining, of course. The latest entry into the pantheon of unusual timepieces is this ESP32-powered desk clock from [Alejandro Wurts] that features a folding LED matrix display.