Implementing Consumer IR Protocols and GPIO Interrupts on ESP32 with JavaScript: Solutions and Libraries

Introduction to Consumer IR (CIR) and ESP32 (M5StickC Plus2) Consumer Infrared (CIR) protocols are the backbone of remote control communication, enabling devices like TVs, monitors, and air conditioners to respond to IR signals. These protocols define the modulation, encoding, and timing of IR pulses, which are transmitted and received via dedicated IR LEDs and photodiodes. On the ESP32 microcontroller, particularly the M5StickC Plus2 , implementing CIR protocols involves leveraging the built-in IR transmitter and receiver capabilities, alongside precise GPIO interrupt handling for real-time signal processing. The ESP32 and JavaScript: A Match for IoT Innovation The ESP32 is a powerhouse in the IoT space, offering Wi-Fi, Bluetooth, and a rich set of peripherals, including GPIO pins and IR capabilities. The M5StickC Plus2 , a compact ESP32-based development board, further simplifies prototyping with its integrated display, battery, and IR transmitter. However, the traditional C/C++ prog