Controlling the light-emitting diode (LED) with the ESP32 S3 is a surprisingly simple endeavor, especially when using a 1k load. The resistance limits the current flowing through one LED, preventing it from frying out http://theengineerstore.in/products/5v-2-1a-3-usb-power-bank-battery-charger-module-circuit-board-step-up-boost-diy