ESP32获取网络时间并显示源程序 74HC595驱动8个数码管

ID:1035380 · 发表于 2022-6-17 13:55

用74HC595驱动8个数码管，通过ESP32获取网络时间并显示！

运行实物

代码截图

源程序如下:

#include <WiFi.h>
#include <Arduino.h>
#include<time.h>
#include <WebServer.h>
#include "disp.h"
#define NTP1 "ntp1.aliyun.com"
#define NTP2 "ntp2.aliyun.com"
#define NTP3 "ntp3.aliyun.com"
//填写WIFI入网信息
String str =
"<!DOCTYPE html><html><head><meta charset=\"UTF-8\"><meta name=\"viewport\"content=\"width=device-width, initial-scale=1.0\"><meta http-equiv=\"X-UA-Compatible\"content=\"ie=edge\"><title>daodanjishui的ESP32网页配网</title></head><body><form name=\"my\">显示--：<input type=\"text\"name=\"s\"placeholder=\"输入yys\"id=\"aa\"><br>显示数字：<input type=\"number\"name=\"p\"placeholder=\"输入的会显示在数码管\"id=\"bb\"><br><input type=\"button\"value=\"确定\"onclick=\"wifi()\"></form><script language=\"javascript\">function wifi(){var ssid=my.s.value;var password=bb.value;var xmlhttp=new XMLHttpRequest();xmlhttp.open(\"GET\",\"/HandleVal?ssid=\"+ssid+\"&password=\"+password,true);xmlhttp.send()}</script></body></html>";
bool gang=0;
int yys888=0;
const char* ssid = "CMCC-M9JR";
const char* password = "a3n6v83c";
int ss=0,hh=0,mm=0;
WebServer server(80);
void setClock() {
struct tm timeinfo;
if (!getLocalTime(&timeinfo))
{//如果获取失败，就开启联网模式，获取时间
Serial.println("Failed to obtain time");
WiFi.disconnect(false);
WiFi.mode(WIFI_STA);//开启网络
WiFi.begin(ssid, password);
while (WiFi.status() != WL_CONNECTED)
{
delay(500);
Serial.print(".");
}
configTime(8 * 3600, 0, NTP1, NTP2,NTP3);
return;
}
// Serial.println(&timeinfo, "%F %T %A"); // 格式化输出:2021-10-24 23:00:44 Sunday
// Serial.print(asctime(&timeinfo));//默认打印格式：Mon Oct 25 11:13:29 2021
//String iii=asctime(&timeinfo);
//String hhhn=iii.substring( 17,20 ) ;
//qq=hhhn.toInt();
// WiFi.disconnect(true);
}
void handleRoot() {
server.send(200, "text/html", str);
}
void HandleVal()
{
String wifis = server.arg("ssid");
String wifip = server.arg("password");
yys888=wifip.toInt();
if (wifis=="yys") gang=1;
else gang=0;
Serial.println(wifis);
Serial.println(wifip);
//WiFi.begin(wifis,wifip);
// WiFi.begin(wifis.c_str(),wifip.c_str());
}
void handleNotFound() {
// digitalWrite(LED_BUILTIN, 0);
String message = "File Not Found\n\n";
message += "URI: ";
message += server.uri();
message += "\nMethod: ";
message += (server.method() == HTTP_GET) ? "GET" : "POST";
message += "\nArguments: ";
message += server.args();
message += "\n";
for (uint8_t i = 0; i < server.args(); i++) {
message += " " + server.argName(i) + ": " + server.arg(i) + "\n";
}
server.send(404, "text/plain", message);
// digitalWrite(LED_BUILTIN, 1);
}
void setup()
{
pinMode(latchPin,OUTPUT);
pinMode(clockPin,OUTPUT);
pinMode(dataPin,OUTPUT);
Serial.begin(115200);
Serial.println();
//设置ESP32工作模式为无线终端模式
WiFi.mode(WIFI_STA);
WiFi.begin(ssid, password);
while (WiFi.status() != WL_CONNECTED)
{
delay(500);
Serial.print(".");
}
Serial.println("WiFi connected!");
configTime(8 * 3600, 0, NTP1, NTP2,NTP3);
setClock();
Serial.println(ssid);
Serial.print("IP address: ");
Serial.println(WiFi.localIP());
// 从网络时间服务器上获取并设置时间
// 获取成功后芯片会使用RTC时钟保持时间的更新
// server.on("/HandleVal", HTTP_GET, HandleVal);
// server.onNotFound(handleNotFound);
// WiFi.disconnect(true);
// WiFi.mode(WIFI_OFF);//关闭网络
// Serial.println("WiFi disconnected!-----");
server.on ("/", HTTP_GET, handleRoot); // 绑定‘/pin’地址到handlePin方法处理
server.on("/HandleVal", HTTP_GET, HandleVal);
server.onNotFound(handleNotFound);
server.begin();
Serial.println("HTTP server started");
}
void disptime()
{
if(gang==0){
disp(3,10);disp(6,10);
disp2(1,hh);
disp2(4,mm);
disp2(7,ss);
}
else if (gang==1)
{
if(ss>30)
disp2(1,yys888);
else
disp2(5,yys888);
}
}
void getClock() {
struct tm timeinfo2;
if (!getLocalTime(&timeinfo2))
{
}
String iii=asctime(&timeinfo2);
String hhhn=iii.substring( 17,20 ) ; //21:35:38
ss=hhhn.toInt();
String hhhn1=iii.substring( 14,17 ) ;
mm=hhhn1.toInt();
String hhhn2=iii.substring( 11,14 ) ;
hh=hhhn2.toInt();
disptime();
}
void loop()
{
//setClock();
getClock();
server.handleClient();
}

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DISP.H头文件:

#ifndef DISP_H_
#define DISP_H_
int clockPin=22;
int latchPin=23;
int dataPin=21;
int i,j;
unsigned char num[]={0b00111111, //"0"
0x06, //"1"
0x5B, //"2"
0x4F, //"3"
0x66, //"4"
0x6D, //"5"
0X7D, //"6"
0X07, //"7"
0x7F, //"8"
0X6F, //"9"
0b01000000, //"-"
0,
};
unsigned char num1[]={0b11110111, //"1"
0b11111011, //"2"
0b11111101, //"3"
0b11111110, //"4"
0b01111111, //"5"
0b10111111, //"6"
0b11011111, //"7"
0b11101111, //"8"
};
void disp(unsigned char i,unsigned char j){
shiftOut(dataPin,clockPin,LSBFIRST,num1[i-1]);
shiftOut(dataPin,clockPin,MSBFIRST,num[j]);
digitalWrite(latchPin, HIGH);
delay(1);
digitalWrite(latchPin,LOW);
}
void disp2(unsigned char k,int n){
// int t=30;
int ge=(int)n%10;
int shi=((int)n/10)%10;
int bai=((int)n/100)%10;
int qian=((int)n/1000)%10;
if(n<100)
{
disp(k,shi);
disp(k+1,ge);
}
else
{
disp(k,qian);
disp(k+1,bai);
disp(k+2,shi);
disp(k+3,ge);
}
}
void cleardisp()
{
for(i=0;i<9;i++)
{
disp(i,11);
}
}
#endif

复制代码

ID:215984 · 发表于 2022-12-3 17:16

太好了，正在寻找网络时钟的制作方法！
谢谢楼主！

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ESP32获取网络时间并显示源程序 74HC595驱动8个数码管

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