The ESP32-S2-WROVER-I(4MB) is a Wi-Fi module manufactured by Espressif. It features a 4MB SPI flash memory, 18x31x3.3 RoHS SMD42 WIFI modules, and is RoHS compliant. The ESP32-S2-WROVER-I(4MB) is a dual-core processor with a clock rate of 240 MHz and a single-instruction, multiple-data (SIMD) architecture. It supports Wi-Fi standards 802.11b/g/n with up to 20 Mbps peak throughput, making it suitable for various applications such as home automation, mesh networking, smart city applications, and more. It also supports WPA2-PSK/WPA3 security, Bluetooth 5.0 with BLE and BR/EDR, several low-power core modes, and multiplexing peripherals over UART, SPI, I2C, and I2S. The module also includes a hardware-based crypto engine, providing robust security.