The ESP32 has USB capabilities built in, ... bare minimum required to show the dev board can receive and run programs is blinking an LED. ... Open up the schematic for what is in the ESP32 MODULE.

To achieve this he created Fade, a custom programming language/framework for controlling LED animations from the ESP32. Fade is written for addressable RGB LEDs like the Neopixel/WS2812.

That’s where a custom-built smart dashboard comes in handy. ESP32 boards are fairly inexpensive, and so are the display modules designed for microcontrollers.

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