项目1多功能墨水屏新闻、天气台历二

目录

NTP.h

定义

initNTP()：Login to WiFi network and assign the time sync provider

getNTPTime()：NTP Time Provider Code

sendNTPpacket()：Send an NTP request to the time server at the given address

get_weather()、updatetime()、hitokoto()、newsdisplay()、gettem()

get_weather()

updatetime()

hitokoto()一言

newsdisplay()新闻

gettem()温湿度

开始看loop()函数中的第二步，initNTP()函数，定义在NTP.h文件中。

NTP.h

定义

1.  
   #include <Arduino.h>
2.  
   #include <TimeLib.h>
3.  
   #include <WiFiUdp.h>
4.  
    
5.  
   #define LOCALPORT 5000 // Local port to listen for UDP packets
6.  
   #define NTP_PACKET_SIZE 48 // NTP time stamp is in the first 48 bytes of the message
7.  
    
8.  
   // A UDP instance to let us send and receive packets over UDP
9.  
   WiFiUDP udp;
10.  
     
11.  
    byte packetBuffer[NTP_PACKET_SIZE]; // Buffer to hold incoming and outgoing packets
12.  
     
13.  
    // Don't hardwire the IP address or we won't get the benefits of the time server pool.
14.  
    const char *ntpServerName ;//= "time.windows.com";//"1.cn.pool.ntp.org";
15.  
    IPAddress timeServerIP(120,25,108,11); //ONENET -- NTP
16.  
    //IPAddress timeServerIP(183,230,40,42); //ONENET -- NTP

这个文件看起来不像是作者写的，本文件定义比较规范。

TimerLib：GitHub - PaulStoffregen/Time: Time library for Arduino

initNTP()：Login to WiFi network and assign the time sync provider

1.  
   // Login to WiFi network and assign the time sync provider
2.  
   //登录WiFi网络并指定时间同步提供商
3.  
   void initNTP() {
4.  
    
5.  
   // Login suceeded so set UDP local port
6.  
   //登录成功，因此设置UDP本地端口
7.  
   udp.begin(LOCALPORT); //初始化WiFiUDP库和网络设置，启动WiFiUDP套接字，侦听本地端口。
8.  
    
9.  
   // Set the time provider to NTP
10.  
    //将时间提供程序设置为NTP
11.  
    setSyncProvider(getNTPTime);
12.  
    }

getNTPTime()：NTP Time Provider Code

1.  
   // NTP Time Provider Code
2.  
   time_t getNTPTime() {
3.  
    
4.  
   int attempts = 10;
5.  
    
6.  
   // Try multiple attempts to return the NTP time
7.  
   //尝试多次返回NTP时间
8.  
   while (attempts--) {
9.  
    
10.  
    // Get a server from the pool
11.  
    if(ntpServerName != NULL){
12.  
    WiFi.hostByName(ntpServerName, timeServerIP); //从网站名获取IP地址
13.  
    }
14.  
    Serial.printf("Time server IP address: ");
15.  
    Serial.println(timeServerIP);
16.  
     
17.  
    while (udp.parsePacket() > 0); // Discard any previously received packets
18.  
    // 检查是否有UDP数据包传入，返回值数据包大小
19.  
     
20.  
    Serial.println("Transmitted NTP Request");
21.  
    sendNTPpacket(timeServerIP);
22.  
     
23.  
    uint32_t beginWait = millis(); //返回运行毫秒数
24.  
    while (millis() - beginWait < 1500) {
25.  
    int size = udp.parsePacket();
26.  
    if (size >= NTP_PACKET_SIZE) {
27.  
    Serial.println("Received NTP Response");
28.  
    udp.read(packetBuffer, NTP_PACKET_SIZE); // Read packet into the buffer
29.  
    // 本函数可用于从设备接收到数据中读取数据。函数将会返回等待读取的数据字节数。
30.  
    unsigned long secsSince1900;
31.  
     
32.  
    // Convert four bytes starting at location 40 to a long integer
33.  
    //将从位置40开始的四个字节转换为长整数
34.  
    secsSince1900 = (unsigned long) packetBuffer[40] << 24;
35.  
    secsSince1900 |= (unsigned long) packetBuffer[41] << 16;
36.  
    secsSince1900 |= (unsigned long) packetBuffer[42] << 8;
37.  
    secsSince1900 |= (unsigned long) packetBuffer[43];
38.  
     
39.  
    Serial.println("Got the time");
40.  
     
41.  
    return secsSince1900 - 2208988800UL;
42.  
    }
43.  
    delay(10);
44.  
    }
45.  
    Serial.println("Retrying NTP request");
46.  
    delay(4000);
47.  
    }
48.  
    Serial.println("No NTP Response");
49.  
    return 0;
50.  
    }

sendNTPpacket()：Send an NTP request to the time server at the given address

1.  
    
2.  
   // Send an NTP request to the time server at the given address
3.  
   //向指定地址的时间服务器发送NTP请求
4.  
   unsigned long sendNTPpacket(IPAddress& address) {
5.  
    
6.  
   // Set all bytes in the buffer to 0
7.  
   memset(packetBuffer, 0, NTP_PACKET_SIZE);
8.  
    
9.  
   // Initialize values needed to form NTP request
10.  
    packetBuffer[0] = 0b11100011; // LI, Version, Mode
11.  
    packetBuffer[1] = 0; // Stratum, or type of clock
12.  
    packetBuffer[2] = 6; // Polling Interval
13.  
    packetBuffer[3] = 0xEC; // Peer Clock Precision
14.  
    // 8 bytes of zero for Root Delay & Root Dispersion
15.  
    packetBuffer[12] = 49;
16.  
    packetBuffer[13] = 0x4E;
17.  
    packetBuffer[14] = 49;
18.  
    packetBuffer[15] = 52;
19.  
     
20.  
    // All NTP fields have been given values, now
21.  
    // you can send a packet requesting a timestamp:
22.  
    udp.beginPacket(address, 123); // NTP requests are to port 123
23.  
    udp.write(packetBuffer, NTP_PACKET_SIZE);
24.  
    udp.endPacket();
25.  
    }

get_weather()、updatetime()、hitokoto()、newsdisplay()、gettem()

get_weather()定义在disolayCode文件中。

get_weather()

图像定义在ImageData.c中，通过ImageData.h声明引用。

主要是右侧日期下方部分的显示。

1.  
   /*天气信息*/
2.  
   void get_weather(void){
3.  
   String tubiao = actual.weather_name;
4.  
   Serial.println(tubiao);
5.  
   if(tubiao=="多云"||tubiao=="晴间多云"||tubiao=="大部多云"){
6.  
   display.drawInvertedBitmap(280, 15, duoyun, 128, 128, GxEPD_BLACK);//画图
7.  
   }else if(tubiao=="晴"){
8.  
   display.drawInvertedBitmap(280, 15, qing, 128, 128, GxEPD_BLACK);//画图
9.  
   }else if(tubiao=="阴"){
10.  
    display.drawInvertedBitmap(280, 15, yin, 128, 128, GxEPD_BLACK);//画图
11.  
    }else if(tubiao=="阵雨"){
12.  
    display.drawInvertedBitmap(280, 15, zhenyu, 128, 128, GxEPD_BLACK);//画图
13.  
    }else if(tubiao=="雷阵雨"){
14.  
    display.drawInvertedBitmap(280, 15, leizhenyu, 128, 128, GxEPD_BLACK);//画图
15.  
    }else if(tubiao=="雷阵雨伴有冰雹"){
16.  
    display.drawInvertedBitmap(280, 15, leizhenyubanyoubingbao, 128, 128, GxEPD_BLACK);//画图
17.  
    }else if(tubiao=="小雨"){
18.  
    display.drawInvertedBitmap(280, 15, xiaoyu, 128, 128, GxEPD_BLACK);//画图
19.  
    }else if(tubiao=="中雨"){
20.  
    display.drawInvertedBitmap(280, 15, zhongyu, 128, 128, GxEPD_BLACK);//画图
21.  
    }else if(tubiao=="大雨"){
22.  
    display.drawInvertedBitmap(280, 15, dayu, 128, 128, GxEPD_BLACK);//画图
23.  
    }else if(tubiao=="暴雨"||tubiao=="大暴雨"||tubiao=="特大暴雨"){
24.  
    display.drawInvertedBitmap(280, 15, baoyu, 128, 128, GxEPD_BLACK);//画图
25.  
    }else if(tubiao=="冻雨"){
26.  
    display.drawInvertedBitmap(280, 15, dongyu, 128, 128, GxEPD_BLACK);//画图
27.  
    }else if(tubiao=="雨夹雪"){
28.  
    display.drawInvertedBitmap(280, 15, yujiaxue, 128, 128, GxEPD_BLACK);//画图
29.  
    }else if(tubiao=="阵雪"){
30.  
    display.drawInvertedBitmap(280, 15, zhenxue, 128, 128, GxEPD_BLACK);//画图
31.  
    }else if(tubiao=="小雪"){
32.  
    display.drawInvertedBitmap(280, 15, xiaoxue, 128, 128, GxEPD_BLACK);//画图
33.  
    }else if(tubiao=="中雪"){
34.  
    display.drawInvertedBitmap(280, 15, zhongxue, 128, 128, GxEPD_BLACK);//画图
35.  
    }else if(tubiao=="大雪"){
36.  
    display.drawInvertedBitmap(280, 15, daxue, 128, 128, GxEPD_BLACK);//画图
37.  
    }else if(tubiao=="暴雪"){
38.  
    display.drawInvertedBitmap(280, 15, baoxue, 128, 128, GxEPD_BLACK);//画图
39.  
    }else if(tubiao=="浮尘"){
40.  
    display.drawInvertedBitmap(280, 15, fuchen, 128, 128, GxEPD_BLACK);//画图
41.  
    }else if(tubiao=="扬沙"||tubiao=="沙尘暴"||tubiao=="强沙尘暴"){
42.  
    display.drawInvertedBitmap(280, 15, shachenbao, 128, 128, GxEPD_BLACK);//画图
43.  
    }else if(tubiao=="雾"){
44.  
    display.drawInvertedBitmap(280, 15, dawu, 128, 128, GxEPD_BLACK);//画图
45.  
    }else if(tubiao=="霾"){
46.  
    display.drawInvertedBitmap(280, 15, mai, 128, 128, GxEPD_BLACK);//画图
47.  
    }else if(tubiao=="未知"){
48.  
    display.drawInvertedBitmap(280, 15, weizhi, 128, 128, GxEPD_BLACK);//画图
49.  
    }
50.  
     
51.  
    /*位置 温度*/
52.  
    display.drawInvertedBitmap(280, 128, weizhi, 32, 28, GxEPD_RED);//画图
53.  
    u8g2Fonts.setCursor(312, 150);
54.  
    u8g2Fonts.setFont(chinese_city_gb2312);
55.  
    u8g2Fonts.setForegroundColor(GxEPD_BLACK); // 设置前景色
56.  
    u8g2Fonts.setBackgroundColor(GxEPD_WHITE); // 设置背景色
57.  
    u8g2Fonts.print(String(actual.city));
58.  
    // u8g2Fonts.setCursor(283,222);
59.  
    u8g2Fonts.setCursor(272,242);
60.  
    u8g2Fonts.print("今天");
61.  
    u8g2Fonts.setCursor(272,262);
62.  
    u8g2Fonts.print("明天");
63.  
    u8g2Fonts.setCursor(272,282);
64.  
    u8g2Fonts.print("后天");
65.  
    String text_day0, text_night0, dn0_s;
66.  
    String text_day1, text_night1, dn1_s;
67.  
    String text_day2, text_night2, dn2_s;
68.  
    const char* dn0; const char* dn1; const char* dn2;
69.  
     
70.  
    if (strcmp(future.date0_text_day, future.date0_text_night) != 0) //今天
71.  
    {
72.  
    text_day0 = future.date0_text_day;
73.  
    text_night0 = future.date0_text_night;
74.  
    dn0_s = text_day0 "转" text_night0;
75.  
    dn0 = dn0_s.c_str();
76.  
    u8g2Fonts.setCursor(300, 242);
77.  
    u8g2Fonts.print(dn0);
78.  
    }
79.  
    else
80.  
    {
81.  
    dn0 = future.date0_text_night;
82.  
    u8g2Fonts.setCursor(300, 242);
83.  
    u8g2Fonts.print(dn0);
84.  
    }
85.  
     
86.  
    if (strcmp(future.date1_text_day, future.date1_text_night) != 0) //明天
87.  
    {
88.  
    text_day1 = future.date1_text_day;
89.  
    text_night1 = future.date1_text_night;
90.  
    dn1_s = text_day1 "转" text_night1;
91.  
    dn1 = dn1_s.c_str();
92.  
    u8g2Fonts.setCursor(300, 262);
93.  
    u8g2Fonts.print(dn1);
94.  
    }
95.  
    else
96.  
    {
97.  
    dn1 = future.date1_text_night;
98.  
    u8g2Fonts.setCursor(300, 262);
99.  
    u8g2Fonts.print(dn1);
100.  
     }
101.  
      
102.  
     if (strcmp(future.date2_text_day, future.date2_text_night) != 0) //后天
103.  
     {
104.  
     text_day2 = future.date2_text_day;
105.  
     text_night2 = future.date2_text_night;
106.  
     dn2_s = text_day2 "转" text_night2;
107.  
     dn2 = dn2_s.c_str();
108.  
     u8g2Fonts.setCursor(300, 282);
109.  
     u8g2Fonts.print(dn2);
110.  
     }
111.  
     else
112.  
     {
113.  
     dn2 = future.date2_text_night;
114.  
     u8g2Fonts.setCursor(300, 282);
115.  
     u8g2Fonts.print(dn2);
116.  
     }
117.  
     //显示高低温
118.  
     String high0, high1, high2, low0, low1, low2, hl0_s, hl1_s, hl2_s;
119.  
     high0 = future.date0_high; high1 = future.date1_high; high2 = future.date2_high;
120.  
     low0 = future.date0_low; low1 = future.date1_low; low2 = future.date2_low;
121.  
     hl0_s = high0 "/" low0;
122.  
     hl1_s = high1 "/" low1;
123.  
     hl2_s = high2 "/" low2;
124.  
     const char* hl0 = hl0_s.c_str();
125.  
     const char* hl1 = hl1_s.c_str();
126.  
     const char* hl2 = hl2_s.c_str();
127.  
     u8g2Fonts.setCursor(373,242);
128.  
     u8g2Fonts.print(hl0);
129.  
     u8g2Fonts.setCursor(373,262);
130.  
     u8g2Fonts.print(hl1);
131.  
     u8g2Fonts.setCursor(373,282);
132.  
     u8g2Fonts.print(hl2);
133.  
      
134.  
     }

updatetime()

1.  
   #define STD_TIMEZONE_OFFSET 8
2.  
   /*get time*/
3.  
    
4.  
   /*时间日期数字格式化*/
5.  
   String pressNum(int num) {
6.  
   if (num < 10 )
7.  
   return "0" String(num);
8.  
   else
9.  
   return String(num);
10.  
    }
11.  
     
12.  
     
13.  
    void updatetime() {
14.  
    String timedate,timetim="";
15.  
    int weekdays, days, months,years,minutes,hours;
16.  
    TimeChangeRule *tcr; // Pointer to the time change rule
17.  
    time_t utc = now();
18.  
    TimeChangeRule mySTD = {"", First, Sun, Jan, 0, STD_TIMEZONE_OFFSET * 60};
19.  
    Timezone myTZ(mySTD, mySTD);
20.  
    time_t localTime = myTZ.toLocal(utc, &tcr);
21.  
    weekdays = weekday(localTime);
22.  
    Serial.print("周");
23.  
    Serial.println(weekdays);
24.  
    // if(weekdays!=7){
25.  
    // weekdays-=1;
26.  
    // }else{
27.  
    // weekdays=1;
28.  
    // }
29.  
    days = day(localTime);
30.  
    months = month(localTime);
31.  
    years = year(localTime);
32.  
    timedate =String(pressNum(months)) ;
33.  
    timedate = "月" ;
34.  
     
35.  
    // if(weekdays==0) weekdays=7;
36.  
    minutes = minute(localTime);
37.  
    hours = hour(localTime) ; //12 hour format use : hourFormat12(localTime) isPM()/isAM()
38.  
    timetim="星期";
39.  
    if(weekdays==2)timetim ="一";
40.  
    else if(weekdays==3)timetim ="二";
41.  
    else if(weekdays==4)timetim ="三";
42.  
    else if(weekdays==5)timetim ="四";
43.  
    else if(weekdays==6)timetim ="五";
44.  
    else if(weekdays==7)timetim ="六";
45.  
    else if(weekdays==1)timetim ="天";
46.  
    timetim =" ";
47.  
    timetim =String(hours);
48.  
    timetim =" 点 ";
49.  
    if(minutes<10){
50.  
    timetim ="0";
51.  
    }
52.  
    timetim =String(minutes);
53.  
    Serial.print(String(years) "-" String(months) "-" String(days) "-");
54.  
    Serial.println(timetim);
55.  
     
56.  
    if(days<10){
57.  
    display.drawInvertedBitmap(301, 144, ling, 48, 66, GxEPD_RED);//画图
58.  
    if(days==1){
59.  
    display.drawInvertedBitmap(349, 144, yi, 18, 66, GxEPD_RED);//画图
60.  
    }else if(days==2){
61.  
    display.drawInvertedBitmap(349, 144, er, 48, 66, GxEPD_RED);//画图
62.  
    }else if(days==3){
63.  
    display.drawInvertedBitmap(349, 144, san, 48, 66, GxEPD_RED);//画图
64.  
    }else if(days==4){
65.  
    display.drawInvertedBitmap(349, 144, si, 48, 66, GxEPD_RED);//画图
66.  
    }else if(days==5){
67.  
    display.drawInvertedBitmap(349, 144, wu, 48, 66, GxEPD_RED);//画图
68.  
    }else if(days==6){
69.  
    display.drawInvertedBitmap(349, 144, liu, 48, 66, GxEPD_RED);//画图
70.  
    }else if(days==7){
71.  
    display.drawInvertedBitmap(349, 144, qi, 48, 66, GxEPD_RED);//画图
72.  
    }else if(days==8){
73.  
    display.drawInvertedBitmap(349, 144, ba, 48, 66, GxEPD_RED);//画图
74.  
    }else if(days==9){
75.  
    display.drawInvertedBitmap(349, 144, jiu, 48, 66, GxEPD_RED);//画图
76.  
    }
77.  
     
78.  
    }else if(days>=10&&days<20){
79.  
    display.drawInvertedBitmap(301, 144, yi, 18, 66, GxEPD_RED);//画图
80.  
    if(days==10){
81.  
    display.drawInvertedBitmap(349, 144, ling, 48, 66, GxEPD_RED);//画图
82.  
    }else if(days==11){
83.  
    display.drawInvertedBitmap(349, 144, yi, 18, 66, GxEPD_RED);//画图
84.  
    }else if(days==12){
85.  
    display.drawInvertedBitmap(349, 144, er, 48, 66, GxEPD_RED);//画图
86.  
    }else if(days==13){
87.  
    display.drawInvertedBitmap(349, 144, san, 48, 66, GxEPD_RED);//画图
88.  
    }else if(days==14){
89.  
    display.drawInvertedBitmap(349, 144, si, 48, 66, GxEPD_RED);//画图
90.  
    }else if(days==15){
91.  
    display.drawInvertedBitmap(349, 144, wu, 48, 66, GxEPD_RED);//画图
92.  
    }else if(days==16){
93.  
    display.drawInvertedBitmap(349, 144, liu, 48, 66, GxEPD_RED);//画图
94.  
    }else if(days==17){
95.  
    display.drawInvertedBitmap(349, 144, qi, 48, 66, GxEPD_RED);//画图
96.  
    }else if(days==18){
97.  
    display.drawInvertedBitmap(349, 144, ba, 48, 66, GxEPD_RED);//画图
98.  
    }else if(days==19){
99.  
    display.drawInvertedBitmap(349, 144, jiu, 48, 66, GxEPD_RED);//画图
100.  
     }
101.  
     }else if(days>=20&&days<30){
102.  
     display.drawInvertedBitmap(301, 144, er, 48, 66, GxEPD_RED);//画图
103.  
     if(days==20){
104.  
     display.drawInvertedBitmap(349, 144, ling, 48, 66, GxEPD_RED);//画图
105.  
     }else if(days==21){
106.  
     display.drawInvertedBitmap(349, 144, yi, 18, 66, GxEPD_RED);//画图
107.  
     }else if(days==22){
108.  
     display.drawInvertedBitmap(349, 144, er, 48, 66, GxEPD_RED);//画图
109.  
     }else if(days==23){
110.  
     display.drawInvertedBitmap(349, 144, san, 48, 66, GxEPD_RED);//画图
111.  
     }else if(days==24){
112.  
     display.drawInvertedBitmap(349, 144, si, 48, 66, GxEPD_RED);//画图
113.  
     }else if(days==25){
114.  
     display.drawInvertedBitmap(349, 144, wu, 48, 66, GxEPD_RED);//画图
115.  
     }else if(days==26){
116.  
     display.drawInvertedBitmap(349, 144, liu, 48, 66, GxEPD_RED);//画图
117.  
     }else if(days==27){
118.  
     display.drawInvertedBitmap(349, 144, qi, 48, 66, GxEPD_RED);//画图
119.  
     }else if(days==28){
120.  
     display.drawInvertedBitmap(349, 144, ba, 48, 66, GxEPD_RED);//画图
121.  
     }else if(days==29){
122.  
     display.drawInvertedBitmap(349, 144, jiu, 48, 66, GxEPD_RED);//画图
123.  
     }
124.  
     }else{
125.  
     display.drawInvertedBitmap(301, 144, san, 48, 66, GxEPD_RED);//画图
126.  
     if(days==30){
127.  
     display.drawInvertedBitmap(349, 144, ling, 48, 66, GxEPD_RED);//画图
128.  
     }else if(days==31){
129.  
     display.drawInvertedBitmap(349, 144, yi, 18, 66, GxEPD_RED);//画图
130.  
     }
131.  
     }
132.  
     u8g2Fonts.setFont(chinese_city_gb2312);
133.  
     u8g2Fonts.setForegroundColor(GxEPD_BLACK); // 设置前景色
134.  
     u8g2Fonts.setBackgroundColor(GxEPD_WHITE); // 设置背景色
135.  
     u8g2Fonts.setCursor(300, 30);//标记：位置需要修改
136.  
     u8g2Fonts.print(timetim);
137.  
     }

hitokoto()一言

1.  
   void hitokoto(){
2.  
   // display.drawRect(0, 0, 38, 12,1);
3.  
   u8g2Fonts.setFont(chinese_city_gb2312);
4.  
   u8g2Fonts.setForegroundColor(GxEPD_RED); // 设置前景色
5.  
   u8g2Fonts.setBackgroundColor(GxEPD_WHITE); // 设置背景色
6.  
   u8g2Fonts.setCursor(42, 12);
7.  
   u8g2Fonts.print(String(yiyan.hitokoto));
8.  
   display.drawInvertedBitmap(0, 0, yiyanp, 38, 12, GxEPD_RED);//画图
9.  
    
10.  
    }

newsdisplay()新闻

1.  
   void newsdisplay(){
2.  
   display.drawLine(269, 25, 269, 296, 0);
3.  
   u8g2Fonts.setFont(chinese_city_gb2312);
4.  
   u8g2Fonts.setForegroundColor(GxEPD_BLACK); // 设置前景色
5.  
   u8g2Fonts.setBackgroundColor(GxEPD_WHITE); // 设置背景色
6.  
   if(udc%3==0){
7.  
   display.drawInvertedBitmap(75, 16, weibo, 32, 32, GxEPD_BLACK);//画图
8.  
   u8g2Fonts.setCursor(106,38);
9.  
   u8g2Fonts.print("微博热点");
10.  
    }else if(udc%3==1){
11.  
    display.drawInvertedBitmap(75, 16, toutiao, 32, 32, GxEPD_BLACK);//画图
12.  
    u8g2Fonts.setCursor(106,38);
13.  
    u8g2Fonts.print("央视新闻");
14.  
     
15.  
    }else{
16.  
    display.drawInvertedBitmap(75, 16, zhihu, 32, 32, GxEPD_BLACK);//画图
17.  
    u8g2Fonts.setCursor(106,38);
18.  
    u8g2Fonts.print("知乎热榜");
19.  
    }
20.  
    String news_title,tt="";
21.  
    for(int i=0;i<11;i ){ //11行
22.  
    u8g2Fonts.setCursor(4,60 i*22);
23.  
    news_title =String(xinwen.title[i]);
24.  
    if(news_title.length()>54){
25.  
    for(int j=0;j<54;j ){
26.  
    tt =news_title[j];
27.  
    }
28.  
    u8g2Fonts.print(tt);
29.  
    }else{
30.  
    u8g2Fonts.print(news_title);
31.  
    }
32.  
    tt="";
33.  
    }
34.  
     
35.  
    }

gettem()温湿度

1.  
   dht11 DHT11;
2.  
   void gettem(){
3.  
   DHT11.read(21);
4.  
   String temperature=String(DHT11.temperature) "℃";
5.  
   String humidity = String(DHT11.humidity) "%";
6.  
   u8g2Fonts.setFont(chinese_city_gb2312);
7.  
   u8g2Fonts.setForegroundColor(GxEPD_BLACK); // 设置前景色
8.  
   u8g2Fonts.setBackgroundColor(GxEPD_WHITE); // 设置背景色
9.  
   u8g2Fonts.setCursor(272,222);
10.  
    u8g2Fonts.print("室内");
11.  
    display.drawInvertedBitmap(312, 210, wendu, 16, 16, GxEPD_BLACK);//画图
12.  
    u8g2Fonts.setCursor(330,222);
13.  
    u8g2Fonts.print(temperature);
14.  
    display.drawInvertedBitmap(358, 210, shidu, 16, 16, GxEPD_BLACK);//画图
15.  
    u8g2Fonts.setCursor(376,222);
16.  
    u8g2Fonts.print(humidity);
17.  
    }

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