This board features 2.4GHz -mode Wi-Fi and TSMC Bluetooth chips, as well as 40nm low- technology. ESP32 NodeMcu WiFi CP2102 Module Development Board has powerful ESP32 - Microcontroller installed, which is an absolute novelty on the market This ESP32 development board provides comfortable prototyping through simple programming via Lua script or in the for -IDE and Breadboard compatible construction. ESP32 NodeMcu WiFi CP2102 Module Development Board supports all common encryption methods such as WPA2. Built-in PCB antenna on the ESP32-WROOM-32 Support Lua program, easy to develop, support LWIP protocol, Freertos, three modes : , STA and + STA. Material:Plastic + Metal colour:Black Package Contents: 3 x ESP32-WROOM-32 Development Board Only the above package content, other products are not included. Note: Light and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.