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资料下载地址：STM32+WIFI获取网络时间+8位数码管显示+0.96OLED

1、项目介绍

主控芯片STM32C8T6        
接线：串口1：PA9     PA10
OELD ：PB6   PB7

数码管使用：MAX7219 8位数码管
Max7219_pinCLK PAout(5)
Max7219_pinCS  PAout(3)
Max7219_pinDIN PAout(7)

2、实物图片

3、程序

#include "led.h"
#include "delay.h"
#include "key.h"
#include "sys.h"
#include "usart.h"
#include "ESP8266.h"
#include "oled.h"
#include "RTC.h"
#include "dht11.h"
#include "7219.h"int main(void)
{       delay_init();                     //延时函数初始化          NVIC_PriorityGroupConfig(NVIC_PriorityGroup_2); //设置NVIC中断分组2:2位抢占优先级，2位响应优先级uart_init(115200);         //串口初始化为115200LED_Init();                             //LED端口初始化KEY_Init();          //初始化与按键连接的硬件接口OLED_Init();                        //初始化OLED  OLED_Clear();ESP8266_Init();esp8266_get_time();//获取时间dispose_time_data(); //更新时间esp8266_get_weather();//获取天气dispose_wea_data();//更新天气RTC_Init();          //初始化与按键连接的硬件接口display_week();//显示星期SPI1_Init();Init_MAX7219();while(1){       //0.96OLED显示OLED_ShowNum(0,0,calendar.w_year,4,16);//年OLED_ShowNum(48,0,calendar.w_month,2,16);//月OLED_ShowNum(80,0,calendar.w_date,2,16);//日OLED_ShowNum(0,2,calendar.hour,2,16);//时OLED_ShowNum(24,2,calendar.min,2,16);//分OLED_ShowNum(48,2,calendar.sec,2,16);//秒OLED_ShowNum(20,4,temperature,2,16);//温度if((calendar.hour==0)&&(calendar.min==0)&&(calendar.sec==0)){calendar.week+=1;if(calendar.week>8) calendar.week=1;display_week();//显示星期}//        数码管显示               if(calendar.sec<55){Write_Max7219(0x08, calendar.hour/10);Write_Max7219(0x07, calendar.hour%10);Write_Max7219(0x06, 0x0A);Write_Max7219(0x05, calendar.min/10);Write_Max7219(0x04, calendar.min%10);Write_Max7219(0x03, 0x0A);Write_Max7219(0x02, calendar.sec/10);Write_Max7219(0x01, calendar.sec%10);delay_ms(100);}else{Write_Max7219(0x08, calendar.w_month/10); //日期Write_Max7219(0x07, calendar.w_month%10);Write_Max7219(0x06, 0x0A);Write_Max7219(0x05, calendar.w_date/10);Write_Max7219(0x04, calendar.w_date%10);Write_Max7219(0x02, temperature/10);//温度Write_Max7219(0x01, temperature%10);delay_ms(100);}}
}