Initial commit

.gitignore

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+.pio
+.vscode/.browse.c_cpp.db*
+.vscode/c_cpp_properties.json
+.vscode/launch.json
+.vscode/ipch

.vscode/extensions.json

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+{
+    // See http://go.microsoft.com/fwlink/?LinkId=827846
+    // for the documentation about the extensions.json format
+    "recommendations": [
+        "platformio.platformio-ide"
+    ],
+    "unwantedRecommendations": [
+        "ms-vscode.cpptools-extension-pack"
+    ]
+}

include/README

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+
+This directory is intended for project header files.
+
+A header file is a file containing C declarations and macro definitions
+to be shared between several project source files. You request the use of a
+header file in your project source file (C, C++, etc) located in `src` folder
+by including it, with the C preprocessing directive `#include'.
+
+```src/main.c
+
+#include "header.h"
+
+int main (void)
+{
+ ...
+}
+```
+
+Including a header file produces the same results as copying the header file
+into each source file that needs it. Such copying would be time-consuming
+and error-prone. With a header file, the related declarations appear
+in only one place. If they need to be changed, they can be changed in one
+place, and programs that include the header file will automatically use the
+new version when next recompiled. The header file eliminates the labor of
+finding and changing all the copies as well as the risk that a failure to
+find one copy will result in inconsistencies within a program.
+
+In C, the usual convention is to give header files names that end with `.h'.
+It is most portable to use only letters, digits, dashes, and underscores in
+header file names, and at most one dot.
+
+Read more about using header files in official GCC documentation:
+
+* Include Syntax
+* Include Operation
+* Once-Only Headers
+* Computed Includes
+
+https://gcc.gnu.org/onlinedocs/cpp/Header-Files.html

lib/README

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+
+This directory is intended for project specific (private) libraries.
+PlatformIO will compile them to static libraries and link into executable file.
+
+The source code of each library should be placed in a an own separate directory
+("lib/your_library_name/[here are source files]").
+
+For example, see a structure of the following two libraries `Foo` and `Bar`:
+
+|--lib
+|  |
+|  |--Bar
+|  |  |--docs
+|  |  |--examples
+|  |  |--src
+|  |     |- Bar.c
+|  |     |- Bar.h
+|  |  |- library.json (optional, custom build options, etc) https://docs.platformio.org/page/librarymanager/config.html
+|  |
+|  |--Foo
+|  |  |- Foo.c
+|  |  |- Foo.h
+|  |
+|  |- README --> THIS FILE
+|
+|- platformio.ini
+|--src
+   |- main.c
+
+and a contents of `src/main.c`:
+```
+#include <Foo.h>
+#include <Bar.h>
+
+int main (void)
+{
+  ...
+}
+
+```
+
+PlatformIO Library Dependency Finder will find automatically dependent
+libraries scanning project source files.
+
+More information about PlatformIO Library Dependency Finder
+- https://docs.platformio.org/page/librarymanager/ldf.html

platformio.ini

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+; PlatformIO Project Configuration File
+;
+;   Build options: build flags, source filter
+;   Upload options: custom upload port, speed and extra flags
+;   Library options: dependencies, extra library storages
+;   Advanced options: extra scripting
+;
+; Please visit documentation for the other options and examples
+; https://docs.platformio.org/page/projectconf.html
+
+[env:d1_mini]
+platform = espressif8266
+board = d1_mini
+framework = arduino
+
+monitor_speed = 115200

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);
+
+}
+

test/README

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+
+This directory is intended for PlatformIO Unit Testing and project tests.
+
+Unit Testing is a software testing method by which individual units of
+source code, sets of one or more MCU program modules together with associated
+control data, usage procedures, and operating procedures, are tested to
+determine whether they are fit for use. Unit testing finds problems early
+in the development cycle.
+
+More information about PlatformIO Unit Testing:
+- https://docs.platformio.org/page/plus/unit-testing.html