Initial import

Author: squix78

TimeClient.cpp

@@ -0,0 +1,112 @@
+/**The MIT License (MIT)
+
+Copyright (c) 2015 by Daniel Eichhorn
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+SOFTWARE.
+
+See more at http://blog.squix.ch
+*/
+
+#include "TimeClient.h"
+
+TimeClient::TimeClient(int utcOffset) {
+  myUtcOffset = utcOffset;
+}
+
+void TimeClient::updateTime() {
+  WiFiClient client;
+  const int httpPort = 80;
+  if (!client.connect("www.google.com", httpPort)) {
+    Serial.println("connection failed");
+    return;
+  }
+  
+  // This will send the request to the server
+  client.print(String("GET / HTTP/1.1\r\n") +
+               String("Host: www.google.com\r\n") + 
+               String("Connection: close\r\n\r\n"));
+  while(!client.available()) {
+    delay(1000); 
+  }
+
+  String line;
+
+  int size = 0;
+  client.setNoDelay(false);
+  while(client.connected()) {
+    while((size = client.available()) > 0) {
+      line = client.readStringUntil('\n');
+      line.toUpperCase();
+      // example: 
+      // date: Thu, 19 Nov 2015 20:25:40 GMT
+      if (line.startsWith("DATE: ")) {
+        Serial.println(line.substring(23, 25) + ":" + line.substring(26, 28) + ":" +line.substring(29, 31));
+        int parsedHours = line.substring(23, 25).toInt();
+        int parsedMinutes = line.substring(26, 28).toInt();
+        int parsedSeconds = line.substring(29, 31).toInt();
+
+        localEpoc = (parsedHours * 60 * 60 + parsedMinutes * 60 + parsedSeconds);
+      }
+    }
+  }
+
+}
+
+String TimeClient::getHours() {
+    if (localEpoc == 0) {
+      return "--";
+    }
+    int hours = (getCurrentEpoch()  % 86400L) / 3600 + myUtcOffset;
+    if (hours < 10) {
+      return "0" + String(hours);
+    }
+    return String(hours); // print the hour (86400 equals secs per day)
+
+}
+String TimeClient::getMinutes() {
+    if (localEpoc == 0) {
+      return "--";
+    }
+    int minutes = ((getCurrentEpoch() % 3600) / 60);
+    if (minutes < 10 ) {
+      // In the first 10 minutes of each hour, we'll want a leading '0'
+      return "0" + String(minutes);
+    }
+    return String(minutes);
+}
+String TimeClient::getSeconds() {
+    if (localEpoc == 0) {
+      return "--";
+    }
+    int seconds = getCurrentEpoch() % 60;
+    if ( seconds < 10 ) {
+      // In the first 10 seconds of each minute, we'll want a leading '0'
+      return "0" + String(seconds);
+    }
+    return String(seconds);
+}
+
+String TimeClient::getFormattedTime() {
+  return getHours() + ":" + getMinutes() + ":" + getSeconds();
+}
+
+long TimeClient::getCurrentEpoch() {
+  return localEpoc + ((millis() - localMillisAtUpdate) / 1000);
+}
+

TimeClient.h

@@ -0,0 +1,56 @@
+/**The MIT License (MIT)
+
+Copyright (c) 2015 by Daniel Eichhorn
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+SOFTWARE.
+
+See more at http://blog.squix.ch
+*/
+#pragma once
+
+#include <ESP8266WiFi.h>
+#include <WiFiUdp.h>
+
+#define NTP_PACKET_SIZE 48
+
+class TimeClient {
+
+  private:
+    int myUtcOffset = 0;
+    long localEpoc = 0;
+    long localMillisAtUpdate;
+    
+    const char* ntpServerName = "time.nist.gov";
+    unsigned int localPort = 2390;
+    
+    byte packetBuffer[ NTP_PACKET_SIZE]; //buffer to hold incoming and outgoing packets
+
+    
+  public:
+    TimeClient(int utcOffset);
+    void updateTime();
+
+    String getHours();
+    String getMinutes();
+    String getSeconds();
+    String getFormattedTime();
+    long getCurrentEpoch();
+
+};
+