ESP32-S3 is a dual-core XTensa LX7 MCU, capable of running at 240 MHz. Apart from its 512 KB of internal SRAM, it also comes with integrated 2.4 GHz, 802.11 b/g/n Wi-Fi and Bluetooth 5 (LE) connectivity that provides long-range support.
The ESP32-S3 is connected to a custom Android API through a mobile app, enabling communication over Bluetooth Low Energy (BLE). Using this setup, the phone can both read live sensor measurements in real time and control outputs directly through the app, providing a flexible and interactive interface for IoT applications.