Initial

src/main.cpp

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+#include <Arduino.h>
+#include <ESP8266WiFi.h>
+#include <WiFiClient.h>
+#include <Ethernet.h>
+#include <EthernetClient.h>
+#include <EthernetUdp.h>
+
+// ******* Netzwerkeinstellungen, bitte anpassen! ********
+const char* ssid = "FingerWeg_nomap";       // SSID des vorhandenen WLANs
+const char* password = "9430080574628949";  // Passwort für das vorhandene WLAN
+byte mac[] = {
+  0x90, 0xA2, 0xDA, 0x0D, 0x5E, 0xA6
+};
+long ntp1 = 0;
+char timeServer[] = "time.nist.gov";
+unsigned int localPort = 8888;
+EthernetUDP Udp;
+const int NTP_PACKET_SIZE = 48;
+byte packetBuffer[NTP_PACKET_SIZE];
+int mySecInt = 0;
+int myMinInt = 0;
+int myStdInt = 0;
+int delayval = 1000; // delay for half a second
+int cronixie[60] = {5, 0, 6, 1, 7, 2, 8, 3, 9, 4, 15, 10, 16, 11, 17, 12, 18, 13, 19, 14, 25, 20, 26, 21, 27, 22, 28, 23, 29, 24, 35, 30, 36, 31, 37, 32, 38, 33, 39, 34, 45, 40, 46, 41, 47, 42, 48, 43, 49, 44, 55, 50, 56, 51, 57, 52, 58, 53, 59, 54};
+int sec1 = 5;
+int sec2 = 5;
+int min1 = 8;
+int min2 = 5;
+int std1 = 3;
+int std2 = 1;
+
+void sendNTPpacket(char* address) {
+  Serial.println("sendNTPpacket");
+
+  memset(packetBuffer, 0, NTP_PACKET_SIZE);
+  packetBuffer[0] = 0b11100011;
+  packetBuffer[1] = 0;
+  packetBuffer[2] = 6;
+  packetBuffer[3] = 0xEC;
+  packetBuffer[12] = 49;
+  packetBuffer[13] = 0x4E;
+  packetBuffer[14] = 49;
+  packetBuffer[15] = 52;
+  Serial.println(address);
+  //Serial.println(packetBuffer);
+
+  Udp.beginPacket(address, 123);
+  Serial.println("Udp.beginPacket");
+  Udp.write(packetBuffer, NTP_PACKET_SIZE);
+  Serial.println("Udp.write");
+  Udp.endPacket();
+  Serial.println("Udp.endPacket");
+}
+
+void setup() {
+  // Seriellen Monitor für Kontrollausgaben öffnen
+  Serial.begin(9600);
+  Serial.println("WeMos Cronixie");
+
+  // WLAN-Verbindung herstellen
+  WiFi.begin(ssid, password);
+  Serial.print("Verbindungsaufbau");
+
+  // Verbindungsaufbau abwarten
+  while (WiFi.status() != WL_CONNECTED) {
+    delay(500);
+    Serial.print(".");
+  }
+  Serial.println(" erfolgreich!");
+  Serial.print("Verbunden mit: ");
+  Serial.println(ssid);
+  Serial.print("Signalstaerke: ");
+  int rssi = WiFi.RSSI();
+  Serial.print(rssi);
+  Serial.println(" dBm");
+  Serial.print("IP-Adresse: ");
+  Serial.println(WiFi.localIP());
+  Serial.println("");
+  if (Ethernet.begin(mac) == 0) {
+    Serial.println("Failed to configure Ethernet usind DHCP");
+    for (;;)
+      ;
+  }
+  Udp.begin(localPort);
+
+}
+
+void loop() {
+  Serial.println(ntp1);
+  if (ntp1 == 0) {
+    Serial.println(ntp1);
+    sendNTPpacket(timeServer);
+    delay(1000);
+    Serial.println(ntp1);
+    if (Udp.parsePacket()) {
+      Udp.read(packetBuffer, NTP_PACKET_SIZE);
+      unsigned long highWord = word(packetBuffer[40], packetBuffer[41]);
+      unsigned long lowWord = word(packetBuffer[42], packetBuffer[43]);
+      unsigned long secsSince1900 = highWord << 16 | lowWord;
+      const unsigned long seventyYears = 2208988800UL;
+      unsigned long epoch = secsSince1900 - seventyYears;
+      Serial.print("The UTC time is ");
+      myStdInt = (epoch % 86400L) / 3600;
+      Serial.print(myStdInt);
+      Serial.print(':');
+      myMinInt = (epoch % 3600) / 60;
+      Serial.print(myMinInt);
+      Serial.print(':');
+      mySecInt = epoch % 60;
+      Serial.println(mySecInt);
+      sec2 = (mySecInt % 100) / 10; // Zehner berechnen
+      sec1 = mySecInt % 10; // Einer berechnen
+      min2 = (myMinInt % 100) / 10; // Zehner berechnen
+      min1 = myMinInt % 10; // Einer berechnen
+      std2 = (myStdInt % 100) / 10; // Zehner berechnen
+      std1 = (myStdInt % 10) + 2; // Einer berechnen
+      if (std1 > 23) {
+        std1 = std1 - 24;
+      }
+    }
+    Ethernet.maintain();
+    ntp1 = 86400;
+  }
+  ntp1--;
+  Serial.println(ntp1);
+
+}
+