标签： Arduino

#include <ESP8266WiFi.h>
#include <NTPClient.h>
#include <WiFiUdp.h>
#include <MD_Parola.h>
#include <MD_MAX72xx.h>
#include <SPI.h>

String formattedDate;
String dayStamp;
String timeStamp;

#define DEMO_DURATION 5000
typedef void (*Demo)(void);
int modeNumber = 0;

// Define the number of devices we have in the chain and the hardware interface
// NOTE: These pin numbers are for ESO8266 hardware SPI and will probably not
// work with your hardware and may need to be adapted
#define HARDWARE_TYPE MD_MAX72XX::FC16_HW
#define MAX_DEVICES 4
#define CLK_PIN   D2 // or SCK
#define DATA_PIN  D4 // or MOSI
#define CS_PIN    D3 // or SS
#define buttonIO  D1
// SOFTWARE SPI
MD_Parola P = MD_Parola(HARDWARE_TYPE, DATA_PIN, CLK_PIN, CS_PIN, MAX_DEVICES);
// Scrolling parameters
uint8_t scrollSpeed = 25;    // default frame delay value
textEffect_t scrollEffect = PA_SCROLL_LEFT;
textPosition_t scrollAlign = PA_LEFT;
uint16_t scrollPause = 2000; // in milliseconds
// Global message buffers shared by Wifi and Scrolling functions
#define BUF_SIZE  512
char curMessage[BUF_SIZE] = { "" };
char newMessage[BUF_SIZE] = { "Hello! Enter new message?" };
bool newMessageAvailable = true;
int state = 0;
int buttonState = 0;
int timeCount = 0;

const char* ssid     = "ce";
const char* password = "ce";

WiFiUDP ntpUDP;
NTPClient timeClient(ntpUDP);

void setup() {
  Serial.begin(57600);
  P.begin();

  WiFi.begin(ssid, password);
  Serial.print("\n\r \n\rWorking to connect");

  while (WiFi.status() != WL_CONNECTED) {
    delay(500);
    Serial.print(".");
  }

  timeClient.begin();

  // 时区 *60分 * 60秒，例如:
  // GMT +1 = 3600
  // GMT +8 = 28800
  // GMT 0 = 0
  timeClient.setTimeOffset(28800);
  pinMode(buttonIO, INPUT);
}

void loop() {
  while (!timeClient.update()) {
    timeClient.forceUpdate();
  }

  buttonState = digitalRead(buttonIO);
  if (buttonState == LOW) {
    state = 2;
  }

  if (P.displayAnimate()) {
    // formattedDate 取得的日期格式为：2018-05-28T16:00:13Z
    formattedDate = timeClient.getFormattedDate();
    Serial.println(formattedDate);

    // 获取日期
    int splitT = formattedDate.indexOf("T");
    dayStamp = formattedDate.substring(0, splitT);
    Serial.print("DATE: ");
    Serial.println(dayStamp);

    // 获取时间
    timeStamp = formattedDate.substring(splitT + 1, formattedDate.length() - 1);
    Serial.print("TIME:");
    Serial.println(timeStamp);

    switch (state) {
      case 0: {
          timeStamp.toCharArray(newMessage, timeStamp.length() + 1);
          strcpy(curMessage, newMessage);
          newMessageAvailable = true;
          state = 1;
          P.displayText(curMessage, scrollAlign, scrollSpeed, scrollPause, scrollEffect, scrollEffect);
          break;
        }
      case 1: {
          dayStamp.toCharArray(newMessage, dayStamp.length() + 1);
          strcpy(curMessage, newMessage);
          newMessageAvailable = true;
          state = 0;
          P.displayText(curMessage, scrollAlign, scrollSpeed, scrollPause, scrollEffect, scrollEffect);
          break;
        }
      case 2: {
          scrollPause = random(50, 800);
          scrollSpeed = random(5, 25);
          timeCount = timeCount + scrollPause + scrollSpeed * 32;
          Serial.println(timeCount);
          String newMessageTemp = "666";
          newMessageTemp.toCharArray(newMessage, newMessageTemp.length() + 1);
          strcpy(curMessage, newMessage);
          newMessageAvailable = true;
          P.displayText(curMessage, scrollAlign, scrollSpeed, scrollPause, scrollEffect, scrollEffect);
          state = 3;
          break;
        }
      case 3: {
          scrollPause = 3000;
          scrollSpeed = 50;
          String newMessageTemp = String(timeCount)+" ms";
          newMessageTemp.toCharArray(newMessage, newMessageTemp.length() + 1);
          strcpy(curMessage, newMessage);
          newMessageAvailable = true;
          state = 0;
          P.displayText(curMessage, scrollAlign, scrollSpeed, scrollPause, scrollEffect, scrollEffect);
          timeCount = 0;
          break;
        }
    }
    P.displayReset();
  }
}