8266AT客户端
- board.h
#define BSP_USING_UART1
#define BSP_UART1_TX_PIN "PA9"
#define BSP_UART1_RX_PIN "PA10"
#define BSP_USING_UART2
#define BSP_UART2_TX_PIN "PA2"
#define BSP_UART2_RX_PIN "PA3"
安装包 at_device
标签：F411CE,PIN,BSP,UART1,RTT,UART2,define From： https://www.cnblogs.com/ahuo/p/16837703.html