The ESP32-WROOM-32E is a module manufactured by Espressif, which is an integrated Wi-Fi, Bluetooth Low Energy (BLE) and SMD (Surface Mount Device) chip based on the ESP32. It supports a wide range of features such as Internet of Things (IoT), Bluetooth Low Energy (BLE), 802.11 b/g/n/e/i Wi-Fi connection, high-speed SPI, UART, and I2C communication, PWM, I2S, peripheral functions and more. It is packed with 4 MB of external flash memory, which is suitable for storing large amounts of data. It has low power consumption and can be used for making connected objects, smart homes and Internet of Things.