The Espressif ESP32-S3-WROOM-1 is a Wi-Fi + Bluetooth 5 (LE) microcontroller module with dual-core Xtensa® LX7 CPU up to 240 MHz, AI acceleration for neural network and signal processing, up to 16 MB flash and 8 MB PSRAM, and 36 GPIOs with rich peripherals. Designed for AIoT, speech, and vision applications, it comes in variants with a PCB antenna (WROOM-1) or external antenna connector (WROOM-1U).