#define HC05_EN PCout(4) //蓝牙控制EN信号 #define HC05_STATE PAin(4) //蓝牙连接状态信号 u8 HC05_Init(void); //void HC05_CFG_CMD(u8 *str); u8 HC05_Get_Role(void); u8 HC05_Set_Cmd(u8* atstr); #endif “hc05.c”: #include "hc05.h" #include "usart2.h" //初始化HC05...