The ESP32-S2-WROOM(4MB) is an integrated Wi-Fi module manufactured by Espressif. It is powered by the ESP32-S2 Wi-Fi microcontroller, housed inside a 4MB Package on SMD42,18x31x3.3 RoHS form factor. It offers Wi-Fi and Bluetooth connectivity along with the fastest CPU performance with a 160MHz single-core frequency, and an embedded 4MB flash memory. The module has comprehensive software and hardware resources, like SPI/OPI interface which allows for easy access to peripherals while providing good flexibility. Additionally, the module has a wide range of features, such as ultra-low power consumption, high performance, scalability, multi-modular connection support, and advanced SSL/TLS encryption giving better security. The module complies with the European RoHS directives and is suitable for a wide range of applications, including internet of things, smart home, industrial automation and embedded systems.