Add a description, image, and links to the nucleo-g474re topic page so that developers can more easily learn about it ...

基于stm32-f4智能气象站及Wi-Fi开关，提供温度、气压、湿度及光强度测量、服务器上报，以及Wi-Fi控制下的GPIO口。 Intelligent Weather Station and Wi-Fi switcher providing temperature ,atmosphere pressure ,humidity and lightness detecting and ...