A chip from the ESP32 family based on the Espressif ESP32-WROOM-32E chipset. Designed for communication in a WiFi network in the 2.4 GHz band and the standard 802.11b/g/n (802.11n up to 150 Mb/s) and Bluetooth BLE/v4.2. The chip is available in surface-mount housing - SMD. It has 32 GPIO pins, including popular interfaces such as UART, SPI and I2C. All leads are labeled, which makes the work much easier. The compact size of the module is 18 x 25.5 x 3.1 mm.