push a lot of changes...

lib/NTPClient/NTPClient.h

@@ -0,0 +1,106 @@
+#pragma once
+
+#include <Arduino.h>
+#include <WiFiUdp.h>
+
+#define SEVENZYYEARS 2208988800UL
+#define NTP_PACKET_SIZE 48
+#define NTP_DEFAULT_LOCAL_PORT 1337
+
+class NTPClient {
+  private:
+    WiFiUDP       _udp;
+    bool          _udpSetup       = false;
+
+    const char*   _poolServerName = "pool.ntp.org"; // Default time server
+    IPAddress     _poolServerIP;
+    unsigned int  _port           = NTP_DEFAULT_LOCAL_PORT;
+    long          _timeOffset     = 0;
+
+    unsigned long _updateInterval = 60000;  // In ms
+
+    unsigned long _currentEpoc    = 0;      // In s
+    unsigned long _lastUpdate     = 0;      // In ms
+
+    byte          _packetBuffer[NTP_PACKET_SIZE];
+
+    void          sendNTPPacket();
+
+  public:
+    NTPClient();
+    NTPClient(long timeOffset);
+    NTPClient(const char* poolServerName);
+    NTPClient(const char* poolServerName, long timeOffset);
+    NTPClient(const char* poolServerName, long timeOffset, unsigned long updateInterval);
+    NTPClient(IPAddress poolServerIP);
+    NTPClient(IPAddress poolServerIP, long timeOffset);
+    NTPClient(IPAddress poolServerIP, long timeOffset, unsigned long updateInterval);
+
+    /**
+     * Set time server name
+     *
+     * @param poolServerName
+     */
+    void setPoolServerName(const char* poolServerName);
+
+     /**
+     * Set random local port
+     */
+    void setRandomPort(unsigned int minValue = 49152, unsigned int maxValue = 65535);
+
+    /**
+     * Starts the underlying UDP client with the default local port
+     */
+    void begin();
+
+    /**
+     * Starts the underlying UDP client with the specified local port
+     */
+    void begin(unsigned int port);
+
+    /**
+     * This should be called in the main loop of your application. By default an update from the NTP Server is only
+     * made every 60 seconds. This can be configured in the NTPClient constructor.
+     *
+     * @return true on success, false on failure
+     */
+    bool update();
+
+    /**
+     * This will force the update from the NTP Server.
+     *
+     * @return true on success, false on failure
+     */
+    bool forceUpdate();
+
+    int getDay() const;
+    int getHours() const;
+    int getMinutes() const;
+    int getSeconds() const;
+
+    /**
+     * Changes the time offset. Useful for changing timezones dynamically
+     */
+    void setTimeOffset(int timeOffset);
+
+    /**
+     * Set the update interval to another frequency. E.g. useful when the
+     * timeOffset should not be set in the constructor
+     */
+    void setUpdateInterval(unsigned long updateInterval);
+
+    /**
+     * @return time formatted like `hh:mm:ss`
+     */
+    String getFormattedTime() const;
+
+    /**
+     * @return time in seconds since Jan. 1, 1970
+     */
+    unsigned long getEpochTime() const;
+
+    /**
+     * Stops the underlying UDP client
+     */
+    void end();
+};