STM32F4+-+MQTT

1,DS0(连接在PB1)
2,串口1(波特率:115200,PA9/PA10连接在板载USB转串口芯片CH340上面)
3,ALIENTEK 2.8/3.5/4.3/7寸TFTLCD模块(通过FSMC驱动,FSMC_NE1接LCD片选/A18接RS),或者RGB接口的4.3/7寸液晶屏
4,按键KEY0(PH3)/KEY1(PH2)/KEY2(PC13)/KEY_UP(PA0,也称之为WK_UP)
5,SD卡,通过SDIO(SDIO_D0~D3(PC8~PC11),SDIO_SCK(PC12),SDIO_CMD(PD2))连接
6,W25Q256(SPI FLASH芯片,连接在SPI5上)