项目总览
先上图，看效果！
该项目主要是通过esp8266-12e连接wifi获取心知天气数据和苏宁时间api，通过解析json代码得到数据，然后通过e-paper墨水屏显示出来，本项目基于墨水屏例程，添加了部分中文字体以及天气图标，通过文字取模软件对图标和文字进行了编码与取模。
元器件清单
- 主控板：esp8266-12e nodemcu
- 显示屏：heltec1.54inch e-link display的高亮样式** 进行展示；
- 杜邦线，usb线；
接线方式
- D/C–>D2
- SDI–>D7
- CS–>D8
- CLK–>D5
- BUSY–>D1
- VCC–>D0(一定要保证3.3v)
- GND–>GND
用到的网站与API
- 天气解析获取三天天气地址：
http://api.seniverse.com/v3/weather/daily.json?key=YOUR EY&location=jinan&language=zh-Hans&unit=c - 记得修改标记位置，分别是心知天气私钥和城市代码
- 私钥获取方式>>官网注册>>购买免费版>>控制台>>添加私钥
获取到的json代码块示例
{
"results": [
{
"location": {
"id": "WWE0TGW4PX6N",
"name": "济南",
"country": "CN",
"path": "济南,济南,山东,中国",
"timezone": "Asia/Shanghai",
"timezone_offset": "+08:00"
},
"daily": [
{
"date": "2021-08-14",
"text_day": "晴",
"code_day": "0",
"text_night": "晴",
"code_night": "1",
"high": "30",
"low": "21",
"rainfall": "1.2",
"precip": "0.34",
"wind_direction": "东",
"wind_direction_degree": "90",
"wind_speed": "23.4",
"wind_scale": "4",
"humidity": "66"
},
{
"date": "2021-08-15",
"text_day": "多云",
"code_day": "4",
"text_night": "多云",
"code_night": "4",
"high": "31",
"low": "21",
"rainfall": "1.2",
"precip": "0.34",
"wind_direction": "东北",
"wind_direction_degree": "45",
"wind_speed": "8.4",
"wind_scale": "2",
"humidity": "66"
},
{
"date": "2021-08-16",
"text_day": "多云",
"code_day": "4",
"text_night": "多云",
"code_night": "4",
"high": "31",
"low": "21",
"rainfall": "1.2",
"precip": "0.35",
"wind_direction": "无持续风向",
"wind_direction_degree": "",
"wind_speed": "3.0",
"wind_scale": "1",
"humidity": "71"
}
],
"last_update": "2021-08-14T08:00:00+08:00"
}
]
}
- 获取到的代码块示例
{
"sysTime2": "2021-08-15 11:34:54",
"sysTime1": "20210815113454"
}
- arduinojson：https://arduinojson.org/assistant/
- 主要是用来esp8266解析获取到的网页数据
- 注意选择v5版本
- 示例：需要解析的数据
{
"sysTime2": "2021-08-15 11:34:54",
"sysTime1": "20210815113454"
}
- 解析后的代码
const size_t capacity = JSON_OBJECT_SIZE(2) + 60;
DynamicJsonBuffer jsonBuffer(capacity);
const char* json = "{\"sysTime2\":\"2021-08-15 11:34:54\",\"sysTime1\":\"20210815113454\"}";
JsonObject& root = jsonBuffer.parseObject(json);
const char* sysTime2 = root["sysTime2"]; // "2021-08-15 11:34:54"
const char* sysTime1 = root["sysTime1"]; // "20210815113454"
只需要将const char* json = 注释掉，然后将json改为通过http获取到的字符串就可以了。
显示屏部分
屏幕文档介绍
https://heltec.org/project/154-e-ink/
通信协议：
- 三线spi：CLK+SDI+CS
- DC引脚+BUSY引脚
供电电压：
- 3.3v （高电压或低电压都会造成乱码显示）
屏幕分辨率（1.54英寸黑白墨水屏）：
- 200像素*200像素
屏幕文字图像取模
取模软件：PCtoLCD2002完美版
取模方式
- 取模选项
- 取模示例：
如何理解：
每一行代表了像素点的位置，14号字体，宽度14像素，高度14像素，一共14行，每一行是两个8为16进制数，最大可以表示16号字。
若需要表示更大的字，值需要在每一行加一个16进制数即可，依然是每一行表示对应的像素点位置。
{
0x02,0x00,
0x02,0x00,
0x05,0x00,
0x08,0x80,
0x14,0x40,
0x22,0x20,
0xC2,0x18,
0x00,0x00,
0x3F,0xC0,
0x00,0x40,
0x00,0x80,
0x00,0x80,
0x01,0x00,
0x02,0x00},/*"今",0*/
- 对应程序中的函数：
paint.DrawCharAt(120, 0, ’ '+9, &Fontzh14, COLORED);//今
第一、二个参数是打印位置x，y
第三个参数代表‘ ’字符加上第几个元素，因为函数是从‘ ’开始检索的
第四个参数用来选择字号，需要用对应的font.c文件，还需要再font.h文件中进行结构体声明
第五个参数用来选择打印颜色，colored即为前景色，黑色
此函数与打印ascii码的函数通用，需要显示中文只需要改动对应字库即可
添加字库方法（中文英文通用）
-
首线复制一份font.c文件并重新命名
-
然后在文件中修改对应变量名，根据字号修改字符宽度和高度
-
在font.h文件重新声明变量
程序总览
- 程序头文件
#include"stdio.h"
#include"stdlib.h"
#include"string.h"
#include <SPI.h>
#include "epd1in54_V2.h"
#include "epdpaint.h"
#include "imagedata.h"
#include <ESP8266WiFi.h>
#include <ESP8266HTTPClient.h>
#include <ArduinoJson.h> //版本为V5版本，最新的版本不适用下面的代码
- 程序变量常量定义
#define COLORED 0
#define UNCOLORED 1
int today_tianqi[5][2]={18,20,/*晴*/
17,29,/*阴*/
19,14,/*大雨*/
15,16,/*多云*/
13,14/*小雨*/};
int yearn,monthn,dayn;
int tianqinum[5]={0,0,0,0,0};
int getxingqi(int years,int months,int day);
String now_address="",now_weather="",now_temperature="",now_temperature_low="",now_day="",now_time="";//用来存储报文得到的字符串
String now_address_1="",now_weather_1="",now_temperature_1="",now_temperature_1_low="",now_day_1="";//用来存储报文得到的字符串
String now_address_2="",now_weather_2="",now_temperature_2="",now_temperature_2_low="",now_day_2="",now_weather_3="",now_weather_4="";//用来存储报文得到的字符串
String GetUrl;
String response;
char* strCat = "";
const char* ssid = "PandoraBox-2.4G-923A97"; // 你的WiFi账号
const char* password = "790338372"; // 你的WIFI密码
unsigned char image[1024];
unsigned long time_start_ms;
unsigned long time_now_s;
int today_day=0;
int tianqi_now=0;
HTTPClient http; //开始登陆 获取天气
HTTPClient https; //开始登陆 获取时间
Paint paint(image, 0, 0);
Epd epd;
- 初始化函数
void setup() {
get_WIFI();
get_WIFI();
SPI.pins(CLK_PIN,MISO,SDI_PIN,CS_PIN);
SPI.begin();
Serial.begin(115200);
if (epd.Init() != 0)
{
Serial.print("e-Paper init failed");
return;
}
epd.ClearFrameMemory(0xFF); // bit set = white, bit reset = black
epd.DisplayFrameFull();
Serial.println("e-Paper SetFrameMemory");
time_start_ms = millis();
}
- 主循环
void loop() {
get_weather();
Serial.println("tianqi:");
Serial.println(tianqinum[0]);
Serial.println(tianqinum[1]);
Serial.println(tianqinum[2]);
Serial.println("now_address:");
Serial.println(now_address);
Serial.println("天气:");
Serial.println(now_weather);
Serial.println("温度:");
Serial.println(now_temperature);
setscreen();
delay(10000);
}
- wifi链接
void get_WIFI()
{
Serial.begin(115200);
WiFi.begin(ssid, password);
while (WiFi.status() != WL_CONNECTED)
{ //等待wifi连接
delay(500);
Serial.print(".."); //重复打印 "Connecting.."，直到连接成功
}
Serial.println(" ");
Serial.println("Connected to ");
Serial.println(ssid);
Serial.println("IP address: ");
Serial.println(WiFi.localIP());
}
- 获取网络天气与时间数据
void get_weather()
{
if (WiFi.status() == WL_CONNECTED) { //如果 Wi-Fi 连接成功
//此处往下是取得实况天气的程序
//心知API的网址，记得修改自己的密码！！！！！！！
//心知API的网址，记得修改自己的城市！！！！！！！
//心知API获取未来三天的天气情况
http.begin("http://api.seniverse.com/v3/weather/daily.json?key=SCZyJ9BUkrn8BfPpD&location=jinan&language=zh-Hans&unit=c");
int httpget_now = http.GET(); //赋值
Serial.println("httpget_now:");
Serial.println(httpget_now);
if (httpget_now == HTTP_CODE_OK)
{
//检查一下是否为0，应该是去检查缓存区是否为空
Serial.println("that is ok");
String respone = http.getString();
Serial.println(respone);
/*数据解析:使用 https://arduinojson.org/assistant/ 一个工具可以直接生成程序，挑有用的复制就行*/
/*记得选v5版本*/
const size_t capacity = JSON_ARRAY_SIZE(1) + JSON_ARRAY_SIZE(3) + JSON_OBJECT_SIZE(1) + JSON_OBJECT_SIZE(3) + JSON_OBJECT_SIZE(6) + 3*JSON_OBJECT_SIZE(14) + 820;
DynamicJsonBuffer jsonBuffer(capacity);
JsonObject& root = jsonBuffer.parseObject(respone);
JsonObject& results_0 = root["results"][0];
JsonObject& results_0_location = results_0["location"];
const char* results_0_location_id = results_0_location["id"]; // "WX4FBXXFKE4F"
const char* results_0_location_name = results_0_location["name"]; // "北京"
const char* results_0_location_country = results_0_location["country"]; // "CN"
const char* results_0_location_path = results_0_location["path"]; // "北京,北京,中国"
const char* results_0_location_timezone = results_0_location["timezone"]; // "Asia/Shanghai"
const char* results_0_location_timezone_offset = results_0_location["timezone_offset"]; // "+08:00"
JsonArray& results_0_daily = results_0["daily"];
JsonObject& results_0_daily_0 = results_0_daily[0];
const char* results_0_daily_0_date = results_0_daily_0["date"]; // "2021-08-14"
const char* results_0_daily_0_text_day = results_0_daily_0["text_day"]; // "阴"
const char* results_0_daily_0_code_day = results_0_daily_0["code_day"]; // "9"
const char* results_0_daily_0_text_night = results_0_daily_0["text_night"]; // "雷阵雨"
const char* results_0_daily_0_code_night = results_0_daily_0["code_night"]; // "11"
const char* results_0_daily_0_high = results_0_daily_0["high"]; // "28"
const char* results_0_daily_0_low = results_0_daily_0["low"]; // "22"
const char* results_0_daily_0_rainfall = results_0_daily_0["rainfall"]; // "1.87"
const char* results_0_daily_0_precip = results_0_daily_0["precip"]; // "0.4"
const char* results_0_daily_0_wind_direction = results_0_daily_0["wind_direction"]; // "南"
const char* results_0_daily_0_wind_direction_degree = results_0_daily_0["wind_direction_degree"]; // "180"
const char* results_0_daily_0_wind_speed = results_0_daily_0["wind_speed"]; // "8.4"
const char* results_0_daily_0_wind_scale = results_0_daily_0["wind_scale"]; // "2"
const char* results_0_daily_0_humidity = results_0_daily_0["humidity"]; // "89"
JsonObject& results_0_daily_1 = results_0_daily[1];
const char* results_0_daily_1_date = results_0_daily_1["date"]; // "2021-08-15"
const char* results_0_daily_1_text_day = results_0_daily_1["text_day"]; // "雷阵雨"
const char* results_0_daily_1_code_day = results_0_daily_1["code_day"]; // "11"
const char* results_0_daily_1_text_night = results_0_daily_1["text_night"]; // "雷阵雨"
const char* results_0_daily_1_code_night = results_0_daily_1["code_night"]; // "11"
const char* results_0_daily_1_high = results_0_daily_1["high"]; // "28"
const char* results_0_daily_1_low = results_0_daily_1["low"]; // "22"
const char* results_0_daily_1_rainfall = results_0_daily_1["rainfall"]; // "7.22"
const char* results_0_daily_1_precip = results_0_daily_1["precip"]; // "0.92"
const char* results_0_daily_1_wind_direction = results_0_daily_1["wind_direction"]; // "东"
const char* results_0_daily_1_wind_direction_degree = results_0_daily_1["wind_direction_degree"]; // "90"
const char* results_0_daily_1_wind_speed = results_0_daily_1["wind_speed"]; // "8.4"
const char* results_0_daily_1_wind_scale = results_0_daily_1["wind_scale"]; // "2"
const char* results_0_daily_1_humidity = results_0_daily_1["humidity"]; // "92"
JsonObject& results_0_daily_2 = results_0_daily[2];
const char* results_0_daily_2_date = results_0_daily_2["date"]; // "2021-08-16"
const char* results_0_daily_2_text_day = results_0_daily_2["text_day"]; // "多云"
const char* results_0_daily_2_code_day = results_0_daily_2["code_day"]; // "4"
const char* results_0_daily_2_text_night = results_0_daily_2["text_night"]; // "多云"
const char* results_0_daily_2_code_night = results_0_daily_2["code_night"]; // "4"
const char* results_0_daily_2_high = results_0_daily_2["high"]; // "28"
const char* results_0_daily_2_low = results_0_daily_2["low"]; // "21"
const char* results_0_daily_2_rainfall = results_0_daily_2["rainfall"]; // "5.94"
const char* results_0_daily_2_precip = results_0_daily_2["precip"]; // "0.84"
const char* results_0_daily_2_wind_direction = results_0_daily_2["wind_direction"]; // "东南"
const char* results_0_daily_2_wind_direction_degree = results_0_daily_2["wind_direction_degree"]; // "135"
const char* results_0_daily_2_wind_speed = results_0_daily_2["wind_speed"]; // "3.0"
const char* results_0_daily_2_wind_scale = results_0_daily_2["wind_scale"]; // "1"
const char* results_0_daily_2_humidity = results_0_daily_2["humidity"]; // "87"
const char* results_0_last_update = results_0["last_update"]; // "2021-08-14T08:00:00+08:00"
//赋值，因为现在这些变量是在缓存区，一会将被清空
now_day=results_0_daily_0_date;
now_address=results_0_location_name; //北京
now_weather=results_0_daily_0_text_day; //晴
now_temperature=results_0_daily_0_high; //19
now_temperature_low=results_0_daily_0_low;
now_day_1=results_0_daily_1_date;
now_address_1=results_0_location_name; //北京
now_weather_1=results_0_daily_1_text_day; //晴
now_temperature_1=results_0_daily_1_high; //19
now_temperature_1_low=results_0_daily_1_low;
now_day_2=results_0_daily_2_date;
now_address_2=results_0_location_name; //北京
now_weather_2=results_0_daily_2_text_night; //晴
now_temperature_2=results_0_daily_2_high; //19
now_temperature_2_low=results_0_daily_2_low;
now_weather_3=results_0_daily_2_text_day; //晴
now_weather_4=results_0_daily_2_text_night; //晴
String str0 = "晴";
String str1 = "阴";
String str2 = "大雨";
String str3 = "多云";
String str4 = "小雨";
if(str0==now_weather)
{
tianqinum[0]=0;
}
else if (str1==now_weather)
{
tianqinum[0]=1;
}
else if (str2==now_weather)
{
tianqinum[0]=2;
}
else if (str3==now_weather)
{
tianqinum[0]=3;
}
else
{
tianqinum[0]=4;
}
if(str0==now_weather_1)
{
tianqinum[1]=0;
}
else if (str1==now_weather_1)
{
tianqinum[1]=1;
}
else if (str2==now_weather_1)
{
tianqinum[1]=2;
}
else if (str3==now_weather_1)
{
tianqinum[1]=3;
}
else
{
tianqinum[1]=4;
}
if(str0==now_weather_2)
{
tianqinum[2]=0;
}
else if (str1==now_weather_2)
{
tianqinum[2]=1;
}
else if (str2==now_weather_2)
{
tianqinum[2]=2;
}
else if (str3==now_weather_2)
{
tianqinum[2]=3;
}
else
{
tianqinum[2]=4;
}
if(str0==now_weather_3)
{
tianqinum[3]=0;
}
else if (str1==now_weather_3)
{
tianqinum[3]=1;
}
else if (str2==now_weather_3)
{
tianqinum[3]=2;
}
else if (str3==now_weather_3)
{
tianqinum[3]=3;
}
else
{
tianqinum[3]=4;
}
if(str0==now_weather_4)
{
tianqinum[4]=0;
}
else if (str1==now_weather_4)
{
tianqinum[4]=1;
}
else if (str2==now_weather_4)
{
tianqinum[4]=2;
}
else if (str3==now_weather_4)
{
tianqinum[4]=3;
}
else
{
tianqinum[4]=4;
}
yearn=(now_day[0]-'0')*1000+(now_day[1]-'0')*100+(now_day[2]-'0')*10+(now_day[3]-'0')*1;
monthn=(now_day[5]-'0')*10+(now_day[6]-'0');
dayn=(now_day[8]-'0')*10+(now_day[9]-'0');
today_day=getxingqi(yearn,monthn,dayn);
http.end();
delay(100);
}
http.end();
https.begin("http://quan.suning.com/getSysTime.do");
// 从时间网站获得网页内容
int httpCode = https.GET();
if (httpCode > 0)
{
Serial.printf("[HTTP] GET... code: %d\n", httpCode);
if (httpCode == HTTP_CODE_OK)
{
//读取响应内容
response = https.getString();
Serial.println(response);
const size_t capacitys = JSON_OBJECT_SIZE(2) + 60;
DynamicJsonBuffer jsonBuffers(capacitys);
JsonObject& roots = jsonBuffers.parseObject(response);
const char* sysTime2 = roots["sysTime2"]; // "2021-08-15 10:21:34"
const char* sysTime1 = roots["sysTime1"]; // "20210815102134"
now_time=sysTime1;
https.end();
delay(100);
}
}
else
{
Serial.printf("[HTTP] GET... failed, error: %s\n", http.errorToString(httpCode).c_str());
}
https.end();
}
}
- 日期转换为星期
int getxingqi(int years,int months,int day)
{
int yd, md; // 定义年份和月份代码
int dh; // 定义dh为代码和
int xin;
int yushu1,yushu2;
yd = ((years%100)/4 + (years%100))%7;
yushu1 = years%4;
yushu2 = years%100;
if(yushu1 = 0 && yushu2 != 0) // 能被4整除不能被100整除是闰年
{
if(months == 1)
{
md = 5;
}
if(months == 2)
{
md = 1;
}
if(months == 3)
{
md = 2;
}
if(months == 4)
{
md = 5;
}
if(months == 5)
{
md = 0;
}
if(months == 6)
{
md = 3;
}
if(months == 7)
{
md = 5;
}
if(months == 8)
{
md = 1;
}
if(months == 9)
{
md = 4;
}
if(months == 10)
{
md = 6;
}
if(months == 11)
{
md = 2;
}
if(months == 12)
{
md = 4;
}
xin = (day+md+yd)%7;
switch(xin)
{
case 1:return(1);
break;
case 2:return(2);
break;
case 3:return(3);
break;
case 4:return(4);
break;
case 5:return(5);
break;
case 6:return(6);
break;
case 7:return(0);
break;
}
}
else
{
if(months == 1)
{
md = 6;
}
if(months == 2)
{
md = 2;
}
if(months == 3)
{
md = 2;
}
if(months == 4)
{
md = 5;
}
if(months == 5)
{
md = 0;
}
if(months == 6)
{
md = 3;
}
if(months == 7)
{
md = 5;
}
if(months == 8)
{
md = 1;
}
if(months == 9)
{
md = 4;
}
if(months == 10)
{
md = 6;
}
if(months == 11)
{
md = 2;
}
if(months == 12)
{
md = 4;
}
xin = (day+md+yd) % 7;
switch(xin)
{
case 1:return(1);
break;
case 2:return(2);
break;
case 3:return(3);
break;
case 4:return(4);
break;
case 5:return(5);
break;
case 6:return(6);
break;
case 7:return(0);
break;
}
}
return 0;
}
- 屏幕刷新
void setscreen()
{
epd.ClearFrameMemory(0xFF); // bit set = white, bit reset = black
epd.DisplayFrameFull();
Serial.println("e-Paper SetFrameMemory");
paint.SetRotate(ROTATE_270);
paint.SetWidth(15);
paint.SetHeight(200);
paint.Clear(UNCOLORED);
strCat="";
sprintf(strCat,"%s %c%c:%c%c",const_cast<char*>(now_day.c_str()),now_time[8],now_time[9],now_time[10],now_time[11]);
paint.DrawStringAt(0, 2, strCat, &Font12, COLORED);
epd.SetFrameMemory(paint.GetImage(), 0, 0, paint.GetWidth(), paint.GetHeight());
paint.Clear(UNCOLORED);
strCat="";
paint.DrawFilledRectangle(0, 0, 200, 0, COLORED);
sprintf(strCat,"%c%c-%c%c %c%c-%c%c %c%c-%c%c %c%c-%c%c%c%c-%c%c"
,monthn/10+'0',monthn%10+'0',dayn/10+'0',dayn%10+'0'
,monthn/10+'0',monthn%10+'0',(dayn+1)/10+'0',(dayn+1)%10+'0'
,monthn/10+'0',monthn%10+'0',(dayn+2)/10+'0',(dayn+2)%10+'0'
,monthn/10+'0',monthn%10+'0',(dayn+3)/10+'0',(dayn+3)%10+'0'
,monthn/10+'0',monthn%10+'0',(dayn+4)/10+'0',(dayn+4)%10+'0');
paint.DrawStringAt(0, 2, strCat, &Font12, COLORED);
epd.SetFrameMemory(paint.GetImage(), 102, 0, paint.GetWidth(), paint.GetHeight());
paint.Clear(UNCOLORED);
strCat="";
paint.DrawFilledRectangle(0, 15, 200, 15, COLORED);
sprintf(strCat," %s. %s. %s. %s. %s. ",
const_cast<char*>(now_temperature.c_str()),
const_cast<char*>(now_temperature_1.c_str()),
const_cast<char*>(now_temperature_2.c_str()),
const_cast<char*>(now_temperature_1_low.c_str()),
const_cast<char*>(now_temperature_low.c_str()));
paint.DrawStringAt(0, 2, strCat, &Font12, COLORED);
epd.SetFrameMemory(paint.GetImage(), 141, 0, paint.GetWidth(), paint.GetHeight());
paint.SetWidth(15);
paint.SetHeight(200);
paint.Clear(UNCOLORED);
paint.DrawCharAt(0, 0, ' '+11, &Fontzh14, COLORED);//预
paint.DrawCharAt(15, 0, ' '+12, &Fontzh14, COLORED);//报
paint.DrawCharAt(120, 0, ' '+9, &Fontzh14, COLORED);//今
paint.DrawCharAt(135, 0, ' '+10, &Fontzh14, COLORED);//天
paint.DrawCharAt(155, 0, ' '+7, &Fontzh14, COLORED);//星
paint.DrawCharAt(169, 0, ' '+8, &Fontzh14, COLORED);//期
paint.DrawCharAt(184, 0, ' '+today_day, &Fontzh14, COLORED);//
epd.SetFrameMemory(paint.GetImage(), 81, 0, paint.GetWidth(), paint.GetHeight());
paint.SetWidth(22);
paint.SetHeight(200);
paint.Clear(UNCOLORED);
paint.DrawCharAt(9, 0, ' '+tianqinum[0], &FontTQ, COLORED);
paint.DrawCharAt(49, 0, ' '+tianqinum[1], &FontTQ, COLORED);
paint.DrawCharAt(89, 0, ' '+tianqinum[2], &FontTQ, COLORED);
paint.DrawCharAt(129, 0, ' '+tianqinum[3], &FontTQ, COLORED);
paint.DrawCharAt(169, 0, ' '+tianqinum[4], &FontTQ, COLORED);
epd.SetFrameMemory(paint.GetImage(), 118, 0, paint.GetWidth(), paint.GetHeight());
paint.Clear(UNCOLORED);
paint.DrawCharAt(0, 2, ' '+7, &Fontzh14, COLORED);//星
paint.DrawCharAt(15, 2, ' '+8, &Fontzh14, COLORED);//期
paint.DrawCharAt(30, 2, ' '+((today_day+1)%7), &Fontzh14, COLORED);//
paint.DrawCharAt(89, 0, ' '+tianqinum[1], &FontTQ, COLORED);
strCat="";
sprintf(strCat,"%s.~%s.",const_cast<char*>(now_temperature_1_low.c_str()),const_cast<char*>(now_temperature_1.c_str()));
paint.DrawStringAt(120, 2, strCat, &Font16, COLORED);
epd.SetFrameMemory(paint.GetImage(), 157, 0, paint.GetWidth(), paint.GetHeight());
paint.Clear(UNCOLORED);
paint.DrawCharAt(0, 2, ' '+7, &Fontzh14, COLORED);//星
paint.DrawCharAt(15, 2, ' '+8, &Fontzh14, COLORED);//期
paint.DrawCharAt(30, 2, ' '+((today_day+2)%7), &Fontzh14, COLORED);///
paint.DrawCharAt(89, 0, ' '+tianqinum[2], &FontTQ, COLORED);
strCat="";
sprintf(strCat,"%s.~%s.",const_cast<char*>(now_temperature_2_low.c_str()),const_cast<char*>(now_temperature_2.c_str()));
paint.DrawStringAt(120, 2, strCat, &Font16, COLORED);
epd.SetFrameMemory(paint.GetImage(), 178, 0, paint.GetWidth(), paint.GetHeight());
paint.SetWidth(64);
paint.SetHeight(100);
paint.Clear(UNCOLORED);
paint.DrawCharAt(0, 0, now_temperature[0]+' '-'0', &Font64, COLORED);
paint.DrawCharAt(34, 0, now_temperature[1]+' '-'0', &Font64, COLORED);
paint.DrawCharAt(66, 0, ' '+10, &Font64, COLORED);
paint.DrawFilledRectangle(99, 0, 99, 64, COLORED);
epd.SetFrameMemory(paint.GetImage(), 18, 85, paint.GetWidth(), paint.GetHeight());
paint.SetWidth(64);
paint.SetHeight(80);
paint.Clear(UNCOLORED);
paint.DrawCharAt(25, 3, ' '+tianqinum[0], &FontTQ, COLORED);
paint.DrawCharAt(25, 28, ' '+today_tianqi[tianqinum[0]][0], &Fontzh14, COLORED);//天气
paint.DrawCharAt(40, 28, ' '+today_tianqi[tianqinum[0]][1], &Fontzh14, COLORED);//天气
strCat="";
sprintf(strCat,"%s.~%s.",const_cast<char*>(now_temperature_low.c_str()),const_cast<char*>(now_temperature.c_str()));
paint.DrawStringAt(15, 50, strCat, &Font12, COLORED);
epd.SetFrameMemory(paint.GetImage(), 18, 0, paint.GetWidth(), paint.GetHeight());
epd.DisplayFrameFull();
}
void setup() {
get_WIFI();
get_WIFI();
SPI.pins(CLK_PIN,MISO,SDI_PIN,CS_PIN);
SPI.begin();
Serial.begin(115200);
if (epd.Init() != 0)
{
Serial.print("e-Paper init failed");
return;
}
epd.ClearFrameMemory(0xFF); // bit set = white, bit reset = black
epd.DisplayFrameFull();
Serial.println("e-Paper SetFrameMemory");
time_start_ms = millis();
}
完整工程下载地址
https://download.csdn.net/download/qq_39541326/21090151?spm=1001.2014.3001.5503