Features: ESP32 module development board, chip CP2104, supports wireless communication and bluetooth-compatible functions, and is suitable for the development of internet of things and intelligent devices. Strong processing ability, support double Cores processor, rich interface, can connect a variety of external devices. Stable wireless communication and Bluetooth-compatible connection; Easy to develop and debug. Suitable for electronic engineers, Internet of Things developers, students and other people who are interested in the development of Internet of Things devices. Suitable for Internet of Things equipment development, intelligent agriculture, intelligent industrial control and other fields. Specifications: Material:PCB Type:1A/2B/5E Size:Approx.5x4cm/1.96x1.57inch Note: 1.Please allow 1-2cm errors due to manual measurement, make sure that you do not mind before you order. 2.Due to the difference between different monitors, the picture may not reflect the actual color of the item. Package includes: 1Pc Development Board