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

心知天气：https://www.seniverse.com/

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"}]
}

苏宁时间api：http://quan.suning.com/getSysTime.do

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 = blackepd.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;    //19now_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;    //19now_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;    //19now_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 = blackepd.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 = blackepd.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

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ESP8266+1.54英寸e-paper墨水屏物联网时间天气显示

目录