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esp8266 0.96 oled 时钟小玩具

分类: IT文章 • 2022-08-02 11:39:12

esp8266 0.96 oled 时钟小玩具

esp8266 0.96 oled 时钟小玩具 

显示 文字上有缺失是因为手机拍照的问题，肉眼看是ojbk的

/*
* 7pin SPI引脚，正面看，从左到右依次为GND、VCC、D0、D1、RES、DC、CS
 *    ESP8266 ---  OLED
 *      3V    ---  VCC
 *      G     ---  GND
 *      D7    ---  D1
 *      D5    ---  D0
 *      D2orD8---  CS
 *      D1    ---  DC
 *      RST   ---  RES
 * 4pin IIC引脚，正面看，从左到右依次为GND、VCC、SCL、SDA
 *      ESP8266  ---  OLED
 *      3.3V     ---  VCC
 *      G (GND)  ---  GND
 *      D1(GPIO5)---  SCL
 *      D2(GPIO4)---  SDA
 */
#include <TimeLib.h>
#include <ESP8266WiFi.h>
#include <WiFiUdp.h>
#include <SPI.h>
#include <DYWiFiConfig.h>
#include <U8g2lib.h>

//若屏幕使用SH1106，只需把SSD1306改为SH1106即可
//U8G2_SSD1306_128X64_NONAME_F_4W_HW_SPI u8g2(U8G2_R0, /* cs=*/4, /* dc=*/5, /* reset=*/3);
U8G2_SSD1306_128X64_NONAME_F_HW_I2C u8g2(U8G2_R0, /* reset=*/ U8X8_PIN_NONE);
//U8G2_SSD1306_128X64_NONAME_F_HW_I2C u8g2(U8G2_R0, /* reset=*/ U8X8_PIN_NONE, /* clock=*/ 4, /* data=*/ 5); //D-duino

DYWiFiConfig wificonfig;
ESP8266WebServer webserver(80);
#define DEF_WIFI_SSID     "x"xxx
#define DEF_WIWI_PASSWORD "xxx"
#define AP_NAME "WangZhiBo" //dev
void wificb(int c)
{
  Serial.print("=-=-=-=-");
  Serial.println(c);
}

static const char ntpServerName[] = "ntp1.aliyun.com"; //NTP服务器，阿里云
const int timeZone = 8;                                //时区，北京时间为+8

WiFiUDP Udp;
unsigned int localPort = 8888; // 用于侦听UDP数据包的本地端口

time_t getNtpTime();
void sendNTPpacket(IPAddress& address);
void oledClockDisplay();
void sendCommand(int command, int value);
void initdisplay();

boolean isNTPConnected = false;

const unsigned char xing[] U8X8_PROGMEM = {
  0x00, 0x00, 0xF8, 0x0F, 0x08, 0x08, 0xF8, 0x0F, 0x08, 0x08, 0xF8, 0x0F, 0x80, 0x00, 0x88, 0x00,
  0xF8, 0x1F, 0x84, 0x00, 0x82, 0x00, 0xF8, 0x0F, 0x80, 0x00, 0x80, 0x00, 0xFE, 0x3F, 0x00, 0x00
};  /*星*/
const unsigned char liu[] U8X8_PROGMEM = { 
  0x40, 0x00, 0x80, 0x00, 0x00, 0x01, 0x00, 0x01, 0x00, 0x00, 0xFF, 0x7F, 0x00, 0x00, 0x00, 0x00,
  0x20, 0x02, 0x20, 0x04, 0x10, 0x08, 0x10, 0x10, 0x08, 0x10, 0x04, 0x20, 0x02, 0x20, 0x00, 0x00
};  /*六*/


void setup()
{
  Serial.begin(115200);
  while (!Serial)
    continue;
  //Serial.println("NTP Clock oled version v1.1");
  Serial.println("Designed by WangZhiBo");
  initdisplay();
  u8g2.clearBuffer();
  u8g2.setFont(u8g2_font_unifont_t_chinese2);
  u8g2.setCursor(0, 14);
  u8g2.print("Waiting for WiFi");
  u8g2.setCursor(0, 30);
  u8g2.print("connection...");
  u8g2.setCursor(0, 47);
  u8g2.print("WangZhiBo");
  u8g2.setCursor(0, 64);
  u8g2.print("192.168.4.1     ^.^");
  u8g2.sendBuffer();
  Serial.println("OLED Ready");

  Serial.print("Connecting WiFi...");
  wificonfig.begin(&webserver, "/");
  DYWIFICONFIG_STRUCT defaultConfig = wificonfig.createConfig();
  strcpy(defaultConfig.SSID, DEF_WIFI_SSID);
  strcpy(defaultConfig.SSID_PASSWORD, DEF_WIWI_PASSWORD);
  strcpy(defaultConfig.HOSTNAME, AP_NAME);
  strcpy(defaultConfig.APNAME, AP_NAME);
  wificonfig.setDefaultConfig(defaultConfig);
  wificonfig.enableAP();
  while (WiFi.status() != WL_CONNECTED)
  {
    wificonfig.handle();   //若不需要Web后台，可以注释掉此行
    //Serial.println("Waiting for Connection...");
  }
  Serial.println("");
  Serial.println("WiFi connected");
  Serial.println("IP address: ");
  Serial.println(WiFi.localIP());
  Serial.println("Starting UDP");
  Udp.begin(localPort);
  Serial.print("Local port: ");
  Serial.println(Udp.localPort());
  Serial.println("waiting for sync");
  setSyncProvider(getNtpTime);
  setSyncInterval(30); //每300秒同步一次时间
  isNTPConnected = true;
}

time_t prevDisplay = 0;   //当时钟已经显示

void loop()
{
  if (timeStatus() != timeNotSet)
  {
    if (now() != prevDisplay)
    { //时间改变时更新显示
      prevDisplay = now();
      oledClockDisplay();
    }
  }
  wificonfig.handle(); //若不需要Web后台，可以注释掉此行
}

void initdisplay()
{
  u8g2.begin();
  u8g2.enableUTF8Print();
}

void oledClockDisplay()
{
  int years, months, days, hours, minutes, seconds, weekdays;
  years = year();
  months = month();
  days = day();
  hours = hour();
  minutes = minute();
  seconds = second();
  weekdays = weekday();
  Serial.printf("%d/%d/%d %d:%d:%d Weekday:%d
", years, months, days, hours, minutes, seconds, weekdays);
  u8g2.clearBuffer();
  u8g2.setFont(u8g2_font_unifont_t_chinese2);
  u8g2.setCursor(0, 14);
  if (isNTPConnected)
    u8g2.print("当前时间 (UTC+8)");
  else
    u8g2.print("无网络!"); //如果上次对时失败，则会显示无网络
  String currentTime = "";
  if (hours < 10)
    currentTime += 0;
  currentTime += hours;
  currentTime += ":";
  if (minutes < 10)
    currentTime += 0;
  currentTime += minutes;
  currentTime += ":";
  if (seconds < 10)
    currentTime += 0;
  currentTime += seconds;
  String currentDay = "";
  currentDay += years;
  currentDay += "/";
  if (months < 10)
    currentDay += 0;
  currentDay += months;
  currentDay += "/";
  if (days < 10)
    currentDay += 0;
  currentDay += days;

  u8g2.setFont(u8g2_font_logisoso24_tr);
  u8g2.setCursor(0, 44);
  u8g2.print(currentTime);
  u8g2.setCursor(0, 61);
  u8g2.setFont(u8g2_font_unifont_t_chinese2);
  u8g2.print(currentDay);
  u8g2.drawXBM(80, 48, 16, 16, xing);
  u8g2.setCursor(95, 62);
  u8g2.print("期");
  if (weekdays == 1)
    u8g2.print("日");
  else if (weekdays == 2)
    u8g2.print("一");
  else if (weekdays == 3)
    u8g2.print("二");
  else if (weekdays == 4)
    u8g2.print("三");
  else if (weekdays == 5)
    u8g2.print("四");
  else if (weekdays == 6)
    u8g2.print("五");
  else if (weekdays == 7)
    u8g2.drawXBM(111, 49, 16, 16, liu);
  u8g2.sendBuffer();
}

/*-------- NTP 代码 ----------*/

const int NTP_PACKET_SIZE = 48;     // NTP时间在消息的前48个字节里
byte packetBuffer[NTP_PACKET_SIZE]; // 输入输出包的缓冲区

time_t getNtpTime()
{
  IPAddress ntpServerIP;          // NTP服务器的地址

  while (Udp.parsePacket() > 0);  // 丢弃以前接收的任何数据包
  Serial.println("Transmit NTP Request");
  // 从池中获取随机服务器
  WiFi.hostByName(ntpServerName, ntpServerIP);
  Serial.print(ntpServerName);
  Serial.print(": ");
  Serial.println(ntpServerIP);
  sendNTPpacket(ntpServerIP);
  uint32_t beginWait = millis();
  while (millis() - beginWait < 1500)
  {
    int size = Udp.parsePacket();
    if (size >= NTP_PACKET_SIZE)
    {
      Serial.println("Receive NTP Response");
      isNTPConnected = true;
      Udp.read(packetBuffer, NTP_PACKET_SIZE); // 将数据包读取到缓冲区
      unsigned long secsSince1900;
      // 将从位置40开始的四个字节转换为长整型，只取前32位整数部分
      secsSince1900 = (unsigned long)packetBuffer[40] << 24;
      secsSince1900 |= (unsigned long)packetBuffer[41] << 16;
      secsSince1900 |= (unsigned long)packetBuffer[42] << 8;
      secsSince1900 |= (unsigned long)packetBuffer[43];
      Serial.println(secsSince1900);
      Serial.println(secsSince1900 - 2208988800UL + timeZone * SECS_PER_HOUR);
      return secsSince1900 - 2208988800UL + timeZone * SECS_PER_HOUR;
    }
  }
  Serial.println("No NTP Response :-("); //无NTP响应
  isNTPConnected = false;
  return 0; //如果未得到时间则返回0
}

// 向给定地址的时间服务器发送NTP请求
void sendNTPpacket(IPAddress& address)
{
  memset(packetBuffer, 0, NTP_PACKET_SIZE);
  packetBuffer[0] = 0b11100011; // LI, Version, Mode
  packetBuffer[1] = 0;          // Stratum, or type of clock
  packetBuffer[2] = 6;          // Polling Interval
  packetBuffer[3] = 0xEC;       // Peer Clock Precision
  // 8 bytes of zero for Root Delay & Root Dispersion
  packetBuffer[12] = 49;
  packetBuffer[13] = 0x4E;
  packetBuffer[14] = 49;
  packetBuffer[15] = 52;
  Udp.beginPacket(address, 123); //NTP需要使用的UDP端口号为123
  Udp.write(packetBuffer, NTP_PACKET_SIZE);
  Udp.endPacket();
}

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