first commit

lib/NTPClient-master/.codespellrc

@@ -0,0 +1,7 @@
+# See: https://github.com/codespell-project/codespell#using-a-config-file
+[codespell]
+# In the event of a false positive, add the problematic word, in all lowercase, to a comma-separated list here:
+ignore-words-list = ,
+check-filenames =
+check-hidden =
+skip = ./.git

lib/NTPClient-master/.github/dependabot.yml

@@ -0,0 +1,10 @@
+# See: https://docs.github.com/en/github/administering-a-repository/configuration-options-for-dependency-updates#about-the-dependabotyml-file
+version: 2
+
+updates:
+  # Configure check for outdated GitHub Actions actions in workflows.
+  # See: https://docs.github.com/en/github/administering-a-repository/keeping-your-actions-up-to-date-with-dependabot
+  - package-ecosystem: github-actions
+    directory: / # Check the repository's workflows under /.github/workflows/
+    schedule:
+      interval: daily

lib/NTPClient-master/.github/workflows/check-arduino.yml

@@ -0,0 +1,28 @@
+name: Check Arduino
+
+# See: https://docs.github.com/en/free-pro-team@latest/actions/reference/events-that-trigger-workflows
+on:
+  push:
+  pull_request:
+  schedule:
+    # Run every Tuesday at 8 AM UTC to catch breakage caused by new rules added to Arduino Lint.
+    - cron: "0 8 * * TUE"
+  workflow_dispatch:
+  repository_dispatch:
+
+jobs:
+  lint:
+    runs-on: ubuntu-latest
+
+    steps:
+      - name: Checkout repository
+        uses: actions/checkout@v4
+
+      - name: Arduino Lint
+        uses: arduino/arduino-lint-action@v2
+        with:
+          compliance: specification
+          library-manager: update
+          # Always use this setting for official repositories. Remove for 3rd party projects.
+          official: true
+          project-type: library

lib/NTPClient-master/.github/workflows/compile-examples.yml

@@ -0,0 +1,71 @@
+name: Compile Examples
+
+# See: https://docs.github.com/en/free-pro-team@latest/actions/reference/events-that-trigger-workflows
+on:
+  push:
+    paths:
+      - ".github/workflows/compile-examples.yml"
+      - "examples/**"
+      - "**.c"
+      - "**.cpp"
+      - "**.h"
+      - "*.S"
+  pull_request:
+    paths:
+      - ".github/workflows/compile-examples.yml"
+      - "examples/**"
+      - "**.c"
+      - "**.cpp"
+      - "**.h"
+      - "*.S"
+  schedule:
+    # Run every Tuesday at 8 AM UTC to catch breakage caused by changes to external resources (libraries, platforms).
+    - cron: "0 8 * * TUE"
+  workflow_dispatch:
+  repository_dispatch:
+
+jobs:
+  build:
+    name: ${{ matrix.board.fqbn }}
+    runs-on: ubuntu-latest
+
+    env:
+      SKETCHES_REPORTS_PATH: sketches-reports
+
+    strategy:
+      fail-fast: false
+
+      matrix:
+        board:
+          - fqbn: esp8266:esp8266:huzzah
+            platforms: |
+              - name: esp8266:esp8266
+                source-url: https://arduino.esp8266.com/stable/package_esp8266com_index.json
+            artifact-name-suffix: esp8266-esp8266-huzzah
+
+    steps:
+      - name: Checkout repository
+        uses: actions/checkout@v4
+
+      - name: Compile examples
+        uses: arduino/compile-sketches@v1
+        with:
+          github-token: ${{ secrets.GITHUB_TOKEN }}
+          fqbn: ${{ matrix.board.fqbn }}
+          platforms: ${{ matrix.board.platforms }}
+          libraries: |
+            # Install the library from the local path.
+            - source-path: ./
+            # Additional library dependencies can be listed here.
+            # See: https://github.com/arduino/compile-sketches#libraries
+          sketch-paths: |
+            - examples
+          enable-deltas-report: true
+          sketches-report-path: ${{ env.SKETCHES_REPORTS_PATH }}
+
+      - name: Save sketches report as workflow artifact
+        uses: actions/upload-artifact@v4
+        with:
+          if-no-files-found: error
+          path: ${{ env.SKETCHES_REPORTS_PATH }}
+          name: sketches-report-${{ matrix.board.artifact-name-suffix }}

lib/NTPClient-master/.github/workflows/report-size-deltas.yml

@@ -0,0 +1,24 @@
+name: Report Size Deltas
+
+# See: https://docs.github.com/en/free-pro-team@latest/actions/reference/events-that-trigger-workflows
+on:
+  push:
+    paths:
+      - ".github/workflows/report-size-deltas.yml"
+  schedule:
+    # Run at the minimum interval allowed by GitHub Actions.
+    # Note: GitHub Actions periodically has outages which result in workflow failures.
+    # In this event, the workflows will start passing again once the service recovers.
+    - cron: "*/5 * * * *"
+  workflow_dispatch:
+  repository_dispatch:
+
+jobs:
+  report:
+    runs-on: ubuntu-latest
+    steps:
+      - name: Comment size deltas reports to PRs
+        uses: arduino/report-size-deltas@v1
+        with:
+          # Regex matching the names of the workflow artifacts created by the "Compile Examples" workflow
+          sketches-reports-source: ^sketches-report-.+

lib/NTPClient-master/.github/workflows/spell-check.yml

@@ -0,0 +1,22 @@
+name: Spell Check
+
+# See: https://docs.github.com/en/free-pro-team@latest/actions/reference/events-that-trigger-workflows
+on:
+  push:
+  pull_request:
+  schedule:
+    # Run every Tuesday at 8 AM UTC to catch new misspelling detections resulting from dictionary updates.
+    - cron: "0 8 * * TUE"
+  workflow_dispatch:
+  repository_dispatch:
+
+jobs:
+  spellcheck:
+    runs-on: ubuntu-latest
+
+    steps:
+      - name: Checkout repository
+        uses: actions/checkout@v4
+
+      - name: Spell check
+        uses: codespell-project/actions-codespell@master

lib/NTPClient-master/.github/workflows/sync-labels.yml

@@ -0,0 +1,138 @@
+# Source: https://github.com/arduino/tooling-project-assets/blob/main/workflow-templates/sync-labels.md
+name: Sync Labels
+
+# See: https://docs.github.com/en/actions/reference/events-that-trigger-workflows
+on:
+  push:
+    paths:
+      - ".github/workflows/sync-labels.ya?ml"
+      - ".github/label-configuration-files/*.ya?ml"
+  pull_request:
+    paths:
+      - ".github/workflows/sync-labels.ya?ml"
+      - ".github/label-configuration-files/*.ya?ml"
+  schedule:
+    # Run daily at 8 AM UTC to sync with changes to shared label configurations.
+    - cron: "0 8 * * *"
+  workflow_dispatch:
+  repository_dispatch:
+
+env:
+  CONFIGURATIONS_FOLDER: .github/label-configuration-files
+  CONFIGURATIONS_ARTIFACT: label-configuration-files
+
+jobs:
+  check:
+    runs-on: ubuntu-latest
+
+    steps:
+      - name: Checkout repository
+        uses: actions/checkout@v4
+
+      - name: Download JSON schema for labels configuration file
+        id: download-schema
+        uses: carlosperate/download-file-action@v2
+        with:
+          file-url: https://raw.githubusercontent.com/arduino/tooling-project-assets/main/workflow-templates/assets/sync-labels/arduino-tooling-gh-label-configuration-schema.json
+          location: ${{ runner.temp }}/label-configuration-schema
+
+      - name: Install JSON schema validator
+        run: |
+          sudo npm install \
+            --global \
+            ajv-cli \
+            ajv-formats
+
+      - name: Validate local labels configuration
+        run: |
+          # See: https://github.com/ajv-validator/ajv-cli#readme
+          ajv validate \
+            --all-errors \
+            -c ajv-formats \
+            -s "${{ steps.download-schema.outputs.file-path }}" \
+            -d "${{ env.CONFIGURATIONS_FOLDER }}/*.{yml,yaml}"
+
+  download:
+    needs: check
+    runs-on: ubuntu-latest
+
+    strategy:
+      matrix:
+        filename:
+          # Filenames of the shared configurations to apply to the repository in addition to the local configuration.
+          # https://github.com/arduino/tooling-project-assets/blob/main/workflow-templates/assets/sync-labels
+          - universal.yml
+
+    steps:
+      - name: Download
+        uses: carlosperate/download-file-action@v2
+        with:
+          file-url: https://raw.githubusercontent.com/arduino/tooling-project-assets/main/workflow-templates/assets/sync-labels/${{ matrix.filename }}
+
+      - name: Pass configuration files to next job via workflow artifact
+        uses: actions/upload-artifact@v4
+        with:
+          path: |
+            *.yaml
+            *.yml
+          if-no-files-found: error
+          name: ${{ env.CONFIGURATIONS_ARTIFACT }}
+
+  sync:
+    needs: download
+    runs-on: ubuntu-latest
+
+    steps:
+      - name: Set environment variables
+        run: |
+          # See: https://docs.github.com/en/actions/reference/workflow-commands-for-github-actions#setting-an-environment-variable
+          echo "MERGED_CONFIGURATION_PATH=${{ runner.temp }}/labels.yml" >> "$GITHUB_ENV"
+
+      - name: Determine whether to dry run
+        id: dry-run
+        if: >
+          github.event_name == 'pull_request' ||
+          (
+            (
+              github.event_name == 'push' ||
+              github.event_name == 'workflow_dispatch'
+            ) &&
+            github.ref != format('refs/heads/{0}', github.event.repository.default_branch)
+          )
+        run: |
+          # Use of this flag in the github-label-sync command will cause it to only check the validity of the
+          # configuration.
+          echo "::set-output name=flag::--dry-run"
+
+      - name: Checkout repository
+        uses: actions/checkout@v4
+
+      - name: Download configuration files artifact
+        uses: actions/download-artifact@v4
+        with:
+          name: ${{ env.CONFIGURATIONS_ARTIFACT }}
+          path: ${{ env.CONFIGURATIONS_FOLDER }}
+
+      - name: Remove unneeded artifact
+        uses: geekyeggo/delete-artifact@v5
+        with:
+          name: ${{ env.CONFIGURATIONS_ARTIFACT }}
+
+      - name: Merge label configuration files
+        run: |
+          # Merge all configuration files
+          shopt -s extglob
+          cat "${{ env.CONFIGURATIONS_FOLDER }}"/*.@(yml|yaml) > "${{ env.MERGED_CONFIGURATION_PATH }}"
+
+      - name: Install github-label-sync
+        run: sudo npm install --global github-label-sync
+
+      - name: Sync labels
+        env:
+          GITHUB_ACCESS_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+        run: |
+          # See: https://github.com/Financial-Times/github-label-sync
+          github-label-sync \
+            --labels "${{ env.MERGED_CONFIGURATION_PATH }}" \
+            ${{ steps.dry-run.outputs.flag }} \
+            ${{ github.repository }}

lib/NTPClient-master/CHANGELOG

@@ -0,0 +1,15 @@
+NTPClient 3.1.0 - 2016.05.31
+
+* Added functions for changing the timeOffset and updateInterval later. Thanks @SirUli
+
+NTPClient 3.0.0 - 2016.04.19
+
+* Constructors now require UDP instance argument, to add support for non-ESP8266 boards
+* Added optional begin API to override default local port
+* Added end API to close UDP socket
+* Changed return type of update and forceUpdate APIs to bool, and return success or failure
+* Change return type of getDay, getHours, getMinutes, and getSeconds to int
+
+Older
+
+* Changes not recorded

lib/NTPClient-master/NTPClient.cpp

@@ -0,0 +1,212 @@
+/**
+ * The MIT License (MIT)
+ * Copyright (c) 2015 by Fabrice Weinberg
+ *
+ * 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.
+ */
+
+#include "NTPClient.h"
+
+NTPClient::NTPClient(UDP& udp) {
+  this->_udp            = &udp;
+}
+
+NTPClient::NTPClient(UDP& udp, long timeOffset) {
+  this->_udp            = &udp;
+  this->_timeOffset     = timeOffset;
+}
+
+NTPClient::NTPClient(UDP& udp, const char* poolServerName) {
+  this->_udp            = &udp;
+  this->_poolServerName = poolServerName;
+}
+
+NTPClient::NTPClient(UDP& udp, IPAddress poolServerIP) {
+  this->_udp            = &udp;
+  this->_poolServerIP   = poolServerIP;
+  this->_poolServerName = NULL;
+}
+
+NTPClient::NTPClient(UDP& udp, const char* poolServerName, long timeOffset) {
+  this->_udp            = &udp;
+  this->_timeOffset     = timeOffset;
+  this->_poolServerName = poolServerName;
+}
+
+NTPClient::NTPClient(UDP& udp, IPAddress poolServerIP, long timeOffset){
+  this->_udp            = &udp;
+  this->_timeOffset     = timeOffset;
+  this->_poolServerIP   = poolServerIP;
+  this->_poolServerName = NULL;
+}
+
+NTPClient::NTPClient(UDP& udp, const char* poolServerName, long timeOffset, unsigned long updateInterval) {
+  this->_udp            = &udp;
+  this->_timeOffset     = timeOffset;
+  this->_poolServerName = poolServerName;
+  this->_updateInterval = updateInterval;
+}
+
+NTPClient::NTPClient(UDP& udp, IPAddress poolServerIP, long timeOffset, unsigned long updateInterval) {
+  this->_udp            = &udp;
+  this->_timeOffset     = timeOffset;
+  this->_poolServerIP   = poolServerIP;
+  this->_poolServerName = NULL;
+  this->_updateInterval = updateInterval;
+}
+
+void NTPClient::begin() {
+  this->begin(NTP_DEFAULT_LOCAL_PORT);
+}
+
+void NTPClient::begin(unsigned int port) {
+  this->_port = port;
+
+  this->_udp->begin(this->_port);
+
+  this->_udpSetup = true;
+}
+
+bool NTPClient::forceUpdate() {
+  #ifdef DEBUG_NTPClient
+    Serial.println("Update from NTP Server");
+  #endif
+
+  // flush any existing packets
+  while(this->_udp->parsePacket() != 0)
+    this->_udp->flush();
+
+  this->sendNTPPacket();
+
+  // Wait till data is there or timeout...
+  byte timeout = 0;
+  int cb = 0;
+  do {
+    delay ( 10 );
+    cb = this->_udp->parsePacket();
+    if (timeout > 100) return false; // timeout after 1000 ms
+    timeout++;
+  } while (cb == 0);
+
+  this->_lastUpdate = millis() - (10 * (timeout + 1)); // Account for delay in reading the time
+
+  this->_udp->read(this->_packetBuffer, NTP_PACKET_SIZE);
+
+  unsigned long highWord = word(this->_packetBuffer[40], this->_packetBuffer[41]);
+  unsigned long lowWord = word(this->_packetBuffer[42], this->_packetBuffer[43]);
+  // combine the four bytes (two words) into a long integer
+  // this is NTP time (seconds since Jan 1 1900):
+  unsigned long secsSince1900 = highWord << 16 | lowWord;
+
+  this->_currentEpoc = secsSince1900 - SEVENZYYEARS;
+
+  return true;  // return true after successful update
+}
+
+bool NTPClient::update() {
+  if ((millis() - this->_lastUpdate >= this->_updateInterval)     // Update after _updateInterval
+    || this->_lastUpdate == 0) {                                // Update if there was no update yet.
+    if (!this->_udpSetup || this->_port != NTP_DEFAULT_LOCAL_PORT) this->begin(this->_port); // setup the UDP client if needed
+    return this->forceUpdate();
+  }
+  return false;   // return false if update does not occur
+}
+
+bool NTPClient::isTimeSet() const {
+  return (this->_lastUpdate != 0); // returns true if the time has been set, else false
+}
+
+unsigned long NTPClient::getEpochTime() const {
+  return this->_timeOffset + // User offset
+         this->_currentEpoc + // Epoch returned by the NTP server
+         ((millis() - this->_lastUpdate) / 1000); // Time since last update
+}
+
+int NTPClient::getDay() const {
+  return (((this->getEpochTime()  / 86400L) + 4 ) % 7); //0 is Sunday
+}
+int NTPClient::getHours() const {
+  return ((this->getEpochTime()  % 86400L) / 3600);
+}
+int NTPClient::getMinutes() const {
+  return ((this->getEpochTime() % 3600) / 60);
+}
+int NTPClient::getSeconds() const {
+  return (this->getEpochTime() % 60);
+}
+
+String NTPClient::getFormattedTime() const {
+  unsigned long rawTime = this->getEpochTime();
+  unsigned long hours = (rawTime % 86400L) / 3600;
+  String hoursStr = hours < 10 ? "0" + String(hours) : String(hours);
+
+  unsigned long minutes = (rawTime % 3600) / 60;
+  String minuteStr = minutes < 10 ? "0" + String(minutes) : String(minutes);
+
+  unsigned long seconds = rawTime % 60;
+  String secondStr = seconds < 10 ? "0" + String(seconds) : String(seconds);
+
+  return hoursStr + ":" + minuteStr + ":" + secondStr;
+}
+
+void NTPClient::end() {
+  this->_udp->stop();
+
+  this->_udpSetup = false;
+}
+
+void NTPClient::setTimeOffset(int timeOffset) {
+  this->_timeOffset     = timeOffset;
+}
+
+void NTPClient::setUpdateInterval(unsigned long updateInterval) {
+  this->_updateInterval = updateInterval;
+}
+
+void NTPClient::setPoolServerName(const char* poolServerName) {
+    this->_poolServerName = poolServerName;
+}
+
+void NTPClient::sendNTPPacket() {
+  // set all bytes in the buffer to 0
+  memset(this->_packetBuffer, 0, NTP_PACKET_SIZE);
+  // Initialize values needed to form NTP request
+  this->_packetBuffer[0] = 0b11100011;   // LI, Version, Mode
+  this->_packetBuffer[1] = 0;     // Stratum, or type of clock
+  this->_packetBuffer[2] = 6;     // Polling Interval
+  this->_packetBuffer[3] = 0xEC;  // Peer Clock Precision
+  // 8 bytes of zero for Root Delay & Root Dispersion
+  this->_packetBuffer[12]  = 49;
+  this->_packetBuffer[13]  = 0x4E;
+  this->_packetBuffer[14]  = 49;
+  this->_packetBuffer[15]  = 52;
+
+  // all NTP fields have been given values, now
+  // you can send a packet requesting a timestamp:
+  if  (this->_poolServerName) {
+    this->_udp->beginPacket(this->_poolServerName, 123);
+  } else {
+    this->_udp->beginPacket(this->_poolServerIP, 123);
+  }
+  this->_udp->write(this->_packetBuffer, NTP_PACKET_SIZE);
+  this->_udp->endPacket();
+}
+
+void NTPClient::setRandomPort(unsigned int minValue, unsigned int maxValue) {
+  randomSeed(analogRead(0));
+  this->_port = random(minValue, maxValue);
+}

lib/NTPClient-master/NTPClient.h

@@ -0,0 +1,114 @@
+#pragma once
+
+#include "Arduino.h"
+
+#include <Udp.h>
+
+#define SEVENZYYEARS 2208988800UL
+#define NTP_PACKET_SIZE 48
+#define NTP_DEFAULT_LOCAL_PORT 1337
+
+class NTPClient {
+  private:
+    UDP*          _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(UDP& udp);
+    NTPClient(UDP& udp, long timeOffset);
+    NTPClient(UDP& udp, const char* poolServerName);
+    NTPClient(UDP& udp, const char* poolServerName, long timeOffset);
+    NTPClient(UDP& udp, const char* poolServerName, long timeOffset, unsigned long updateInterval);
+    NTPClient(UDP& udp, IPAddress poolServerIP);
+    NTPClient(UDP& udp, IPAddress poolServerIP, long timeOffset);
+    NTPClient(UDP& udp, 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();
+
+    /**
+     * This allows to check if the NTPClient successfully received a NTP packet and set the time.
+     *
+     * @return true if time has been set, else false
+     */
+    bool isTimeSet() const;
+
+    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();
+};

lib/NTPClient-master/README.md

@@ -0,0 +1,52 @@
+# NTPClient
+
+[![Check Arduino status](https://github.com/arduino-libraries/NTPClient/actions/workflows/check-arduino.yml/badge.svg)](https://github.com/arduino-libraries/NTPClient/actions/workflows/check-arduino.yml)
+[![Compile Examples status](https://github.com/arduino-libraries/NTPClient/actions/workflows/compile-examples.yml/badge.svg)](https://github.com/arduino-libraries/NTPClient/actions/workflows/compile-examples.yml)
+[![Spell Check status](https://github.com/arduino-libraries/NTPClient/actions/workflows/spell-check.yml/badge.svg)](https://github.com/arduino-libraries/NTPClient/actions/workflows/spell-check.yml)
+
+Connect to an NTP server, here is how:
+
+```cpp
+#include <NTPClient.h>
+// change next line to use with another board/shield
+#include <ESP8266WiFi.h>
+//#include <WiFi.h> // for WiFi shield
+//#include <WiFi101.h> // for WiFi 101 shield or MKR1000
+#include <WiFiUdp.h>
+
+const char *ssid     = "<SSID>";
+const char *password = "<PASSWORD>";
+
+WiFiUDP ntpUDP;
+
+// By default 'pool.ntp.org' is used with 60 seconds update interval and
+// no offset
+NTPClient timeClient(ntpUDP);
+
+// You can specify the time server pool and the offset, (in seconds)
+// additionally you can specify the update interval (in milliseconds).
+// NTPClient timeClient(ntpUDP, "europe.pool.ntp.org", 3600, 60000);
+
+void setup(){
+  Serial.begin(115200);
+  WiFi.begin(ssid, password);
+
+  while ( WiFi.status() != WL_CONNECTED ) {
+    delay ( 500 );
+    Serial.print ( "." );
+  }
+
+  timeClient.begin();
+}
+
+void loop() {
+  timeClient.update();
+
+  Serial.println(timeClient.getFormattedTime());
+
+  delay(1000);
+}
+```
+
+## Function documentation
+`getEpochTime` returns the Unix epoch, which are the seconds elapsed since 00:00:00 UTC on 1 January 1970 (leap seconds are ignored, every day is treated as having 86400 seconds). **Attention**: If you have set a time offset this time offset will be added to your epoch timestamp.

lib/NTPClient-master/examples/Advanced/Advanced.ino

@@ -0,0 +1,37 @@
+#include <NTPClient.h>
+// change next line to use with another board/shield
+#include <ESP8266WiFi.h>
+//#include <WiFi.h> // for WiFi shield
+//#include <WiFi101.h> // for WiFi 101 shield or MKR1000
+#include <WiFiUdp.h>
+
+const char *ssid     = "<SSID>";
+const char *password = "<PASSWORD>";
+
+WiFiUDP ntpUDP;
+
+// You can specify the time server pool and the offset (in seconds, can be
+// changed later with setTimeOffset() ). Additionally you can specify the
+// update interval (in milliseconds, can be changed using setUpdateInterval() ).
+NTPClient timeClient(ntpUDP, "europe.pool.ntp.org", 3600, 60000);
+
+void setup(){
+  Serial.begin(115200);
+
+  WiFi.begin(ssid, password);
+
+  while ( WiFi.status() != WL_CONNECTED ) {
+    delay ( 500 );
+    Serial.print ( "." );
+  }
+
+  timeClient.begin();
+}
+
+void loop() {
+  timeClient.update();
+
+  Serial.println(timeClient.getFormattedTime());
+
+  delay(1000);
+}

lib/NTPClient-master/examples/Basic/Basic.ino

@@ -0,0 +1,33 @@
+#include <NTPClient.h>
+// change next line to use with another board/shield
+#include <ESP8266WiFi.h>
+//#include <WiFi.h> // for WiFi shield
+//#include <WiFi101.h> // for WiFi 101 shield or MKR1000
+#include <WiFiUdp.h>
+
+const char *ssid     = "<SSID>";
+const char *password = "<PASSWORD>";
+
+WiFiUDP ntpUDP;
+NTPClient timeClient(ntpUDP);
+
+void setup(){
+  Serial.begin(115200);
+
+  WiFi.begin(ssid, password);
+
+  while ( WiFi.status() != WL_CONNECTED ) {
+    delay ( 500 );
+    Serial.print ( "." );
+  }
+
+  timeClient.begin();
+}
+
+void loop() {
+  timeClient.update();
+
+  Serial.println(timeClient.getFormattedTime());
+
+  delay(1000);
+}

lib/NTPClient-master/examples/IsTimeSet/IsTimeSet.ino

@@ -0,0 +1,53 @@
+#include <NTPClient.h>
+// change next line to use with another board/shield
+#include <ESP8266WiFi.h>
+//#include <WiFi.h> // for WiFi shield
+//#include <WiFi101.h> // for WiFi 101 shield or MKR1000
+#include <WiFiUdp.h>
+
+const char *ssid     = "<SSID>";
+const char *password = "<PASSWORD>";
+
+WiFiUDP ntpUDP;
+// initialized to a time offset of 10 hours
+NTPClient timeClient(ntpUDP,"pool.ntp.org", 36000, 60000);
+//                           HH:MM:SS
+// timeClient initializes to 10:00:00 if it does not receive an NTP packet
+// before the 100ms timeout.
+// without isTimeSet() the LED would be switched on, although the time
+// was not yet set correctly.
+
+// blue LED on ESP-12F
+const int led = 2;
+const int hour = 10;
+const int minute = 0;
+
+void setup(){
+  Serial.begin(115200);
+
+  pinMode(led, OUTPUT);
+  // led is off when pin is high
+  digitalWrite(led, 1);
+
+  WiFi.begin(ssid, password);
+
+  while (WiFi.status() != WL_CONNECTED) {
+    delay (500);
+    Serial.print (".");
+  }
+
+  timeClient.begin();
+}
+
+void loop() {
+  timeClient.update();
+
+  Serial.println(timeClient.getFormattedTime());
+  if(timeClient.isTimeSet()) {
+    if (hour == timeClient.getHours() && minute == timeClient.getMinutes()) {
+      digitalWrite(led, 0);
+    }
+  }
+
+  delay(1000);
+}

lib/NTPClient-master/keywords.txt

@@ -0,0 +1,24 @@
+#######################################
+# Datatypes (KEYWORD1)
+#######################################
+
+NTPClient	KEYWORD1
+
+#######################################
+# Methods and Functions (KEYWORD2)
+#######################################
+
+begin	KEYWORD2
+end	KEYWORD2
+update	KEYWORD2
+forceUpdate	KEYWORD2
+isTimeSet	KEYWORD2
+getDay	KEYWORD2
+getHours	KEYWORD2
+getMinutes	KEYWORD2
+getSeconds	KEYWORD2
+getFormattedTime	KEYWORD2
+getEpochTime	KEYWORD2
+setTimeOffset	KEYWORD2
+setUpdateInterval	KEYWORD2
+setPoolServerName	KEYWORD2

lib/NTPClient-master/library.properties

@@ -0,0 +1,9 @@
+name=NTPClient
+version=3.2.1
+author=Fabrice Weinberg
+maintainer=Fabrice Weinberg <fabrice@weinberg.me>
+sentence=An NTPClient to connect to a time server
+paragraph=Get time from a NTP server and keep it in sync.
+category=Timing
+url=https://github.com/arduino-libraries/NTPClient
+architectures=*