This board features 2.4GHz Wi-Fi and Bluetooth chips with low-power technology. The ESP32 NodeMCU WiFi CP2102 Module Development Board includes a powerful ESP32 microcontroller, ideal for a wide range of applications. It provides convenient prototyping through simple programming using Lua script or the Arduino IDE, and is breadboard compatible. The development board supports common encryption methods such as WPA2. It has a built-in PCB antenna on the ESP32-WROOM-32 module. Supports Lua programming, easy to develop, supports LWIP protocol and FreeRTOS, with multiple operation modes: AP, STA, and AP+STA. Material: Plastic + Metal. Color: Black. Package Contents: 3 x ESP32-WROOM-32 Development Board. Only the above package content is included; other products are not included. Note: Lighting and different displays may cause slight variations in the color of the item in the picture compared to the real thing. Measurement error allowed is +/- 1-3 cm.