ESP32 IR Universal Remote (IR Receiver + Remote Control + 3 LEDs + Buzzer + OLED)

With the ESP32, you can read a standard IR remote control and use it to control your own device! In this project, we use an infrared receiver (NEC protocol, 38 kHz) to capture the signals from a 20-button IR remote. We’ve defined different actions for each button: buttons 1, 2, and 3 toggle three separate LEDs; the PWR button turns them all off; and the numbers 4–9 display special characters on the OLED. The SSD1306 OLED display shows the last button pressed in large font, along with a descripti