Using GH1.25 lock connector, it is easier and more reliable to connect peripherals, zero-thinking connection, plug and play Programmable Python firmware and firmware, together with FrogMaker's cloud programming tool: Jupiter IDE, makes programming easier and more interesting; it is also a powerful tool for learning Python and C/C++ Built-in WiFi module, easy to connect to the cloud, making Internet smart products Equivalent installation holes of 5mm are used for the surrounding peripherals, making the product design more standardized and beautiful Equipped with 32Mbit flash, so that the resources that can be stored are more abundant Type: Development Board Model: ESP8266 Material: PCB Colour: Black Package Contents: 1 x Development Board 1 x Button 1 x RGB Light 1 x Data Cable 2 x Connection Cable Only the above package content, other products are not included. Note: Light reflection 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.