The Espressif ESP32-WROOM-32E is a versatile Wi-Fi + Bluetooth 4.2 (BR/EDR + BLE) MCU module based on the ESP32-D0WD-V3 dual-core Xtensa® LX6 processor (80–240 MHz). With 4 MB SPI flash (options up to 16 MB), onboard PCB antenna, ultra-low power modes, and rich peripherals including capacitive touch, Hall sensor, SPI, I²C, I²S, UART, and SD card interface, it is ideal for IoT, mobile, and embedded applications.