Controlling a light-emitting diode (LED) with the ESP32 Three is a surprisingly simple project, especially when using one 1k load. The load limits one current flowing through the LED, preventing it’s from melting out http://theengineerstore.in/products/waveshare-esp32-s3-microcontroller-2-4-ghz-wi-fi-development-board-dual-core-processor-with-frequency-up-to-240-mhz