stm32 无线通信 。本实验将实现如下功能：开机的时候先检测NRF24L01模块是否存在，在检测到NRF24L01模块之后，根据KEY0和KEY1的设置来决定模块的工作模式，在设定好工作模式之后，就会不停的发送/接收数据，同样用DS0来指示程序正在运行。-In this study, the following functions will be realized: it will detect NRF24L01 module when you start the machince.After detecting NRF24L01 module, the module,s operating mode will be determined according to setting KEY0 and the KEY1 .after setting , it will keep sending/receiving data, the same, DS0 to indicate the program is running.