Tag: Arduino

This article demonstrates how to build a classic LED chaser (running light) circuit with ESP32, including several implementation methods and code optimizations.

This article demonstrates how to control ESP32 GPIO output to light up and blink an LED, providing a hands-on introduction to ESP32 hardware programming using Arduino.

A comprehensive guide to getting started with the ESP32Cube development board, including hardware overview, pin functions, development options, and Arduino introduction for beginners.

Running out of GPIO pins on your ESP32? This guide shows you how to use the PCF8574 I2C GPIO expander to add up to 64 extra I/O pins via a two-wire bus, covering wiring, address config, LED control, button input, interrupts, and matrix keypads.