This board features 2.4GHz Wi-Fi and Bluetooth chips, along with 40nm low-power technology. The ESP32 NodeMCU WiFi CP2102 Module Development Board includes a powerful ESP32 microcontroller, offering advanced performance for development and prototyping. It enables convenient prototyping through simple programming using Lua script or the Arduino IDE, and is breadboard compatible. The board supports common encryption methods such as WPA2. It has a built-in PCB antenna via the ESP32-WROOM-32 module. Supports Lua programming, easy development, LWIP protocol, FreeRTOS, and operates in multiple 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 display differences may cause slight variations between the image color and the actual item. Measurement error allowance is +/- 1-3 cm.