#include <WiFi.h>

#include <time.h>
int SEC, MIN, HOUR, DAY, MON, YEAR, WDAY;

#include <Adafruit_GFX.h>
#include <Adafruit_NeoMatrix.h>
#include <Adafruit_NeoPixel.h>
#ifndef PSTR
 #define PSTR // Make Arduino Due happy
#endif
Adafruit_NeoMatrix matrix = Adafruit_NeoMatrix(16, 16, 4,
  NEO_MATRIX_TOP     + NEO_MATRIX_LEFT +
  NEO_MATRIX_ROWS + NEO_MATRIX_ZIGZAG,
  NEO_GRB            + NEO_KHZ800);

const uint16_t colors[] = {
  matrix.Color(255, 0, 0), matrix.Color(0, 255, 0), matrix.Color(0, 0, 255) };


void setup() {
  Serial.begin(115200);

  //wifi接続
  WiFi.begin("Wokwi-GUEST", "", 6);
  // WiFi.begin("m_netu", "8888888888");    //SSID,password
  while (WiFi.status() != WL_CONNECTED) {
    Serial.print('.');
    delay(500);
  }
  Serial.println("Connected to the WiFi network!");

  //タイムサーバーより時間取得
  configTime(9 * 3600L, 0, "ntp.nict.jp", "time.google.com", "ntp.jst.mfeed.ad.jp");  //NTPの設定
  

  matrix.begin();
  matrix.setTextWrap(false);
  matrix.setBrightness(40);
  matrix.setTextColor(colors[0]);
}

int x    = matrix.width();
int pass = 0;

void loop() {
  //TIME();  //現在詳細時刻取得

matrix.fillScreen(0);
  matrix.setCursor(x, 0);
  matrix.print(F("Howdy"));
  if(--x < -36) {
    x = matrix.width();
    if(++pass >= 3) pass = 0;
    matrix.setTextColor(colors[pass]);
  }
  matrix.show();
  

  delay(10);
}






void TIME() {           //現在詳細時刻取得
  time_t t = time(NULL);     //time_t 型の時刻を取得する
  struct tm *tm;             //struct tm 型に変更
  tm   = localtime(&t);      //struct tm　を変数に変換
  SEC  = tm->tm_sec ;     /* seconds after the minute [0-60] */
  MIN  = tm->tm_min ;     /* minutes after the hour [0-59] */
  HOUR = tm->tm_hour;     /* hours since midnight [0-23] */
  DAY  = tm->tm_mday;     /* day of the month [1-31] */
  MON  = tm->tm_mon + 1;  /* months since January [0-11] */
  YEAR = tm->tm_year+1900;/* years since 1900 */
  
  
  const char* WD[7] = {"日","月","火","水","木","金","土"};
  WDAY = tm->tm_wday;	        /* days since Sunday [0-6] */
  
  Serial.print(YEAR);
  Serial.print("年");
  Serial.print(MON);
  Serial.print("月");
  Serial.print(DAY);
  Serial.print("日 ");
  Serial.print( "(" );
  Serial.print( WD[WDAY]);
  Serial.print( ")" );
  Serial.print(HOUR);
  Serial.print(":");
  Serial.print(MIN);
  Serial.print(":");
  Serial.println(SEC);
}