解决了获取时间卡死bug

.pio/libdeps/esp32dev/Vector/.gitignore

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+.DS_Store
+/.idea
+/build
+/bin
+/lib
+/sftp-config.json
+.tags
+.tags_sorted_by_file
+.pio

.pio/libdeps/esp32dev/Vector/.piopm

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+{"type": "library", "name": "Vector", "version": "1.2.2", "spec": {"owner": "janelia-arduino", "id": 5825, "name": "Vector", "requirements": null, "uri": null}}

.pio/libdeps/esp32dev/Vector/LICENSE

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+License Agreement
+(3-clause BSD License)
+Janelia Research Campus Software Copyright 1.1
+
+Copyright (c) 2021, Howard Hughes Medical Institute
+All rights reserved.
+
+Redistribution and use in source and binary forms, with or without
+modification, are permitted provided that the following conditions are met:
+
+* Redistributions of source code must retain the above copyright notice, this
+  list of conditions and the following disclaimer.
+
+* Redistributions in binary form must reproduce the above copyright notice,
+  this list of conditions and the following disclaimer in the documentation
+  and/or other materials provided with the distribution.
+
+* Neither the name of the Howard Hughes Medical Institute nor the
+  names of its contributors may be used to endorse or promote products
+  derived from this software without specific prior written
+  permission.
+
+THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
+FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
+SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
+CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.

.pio/libdeps/esp32dev/Vector/README.org

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+#+TITLE: Vector
+#+AUTHOR: Peter Polidoro
+#+EMAIL: peter@polidoro.io
+
+* Library Information
+  - Name :: Vector
+  - Version :: 1.2.2
+  - License :: BSD
+  - URL :: https://github.com/janelia-arduino/Vector
+  - Author :: Peter Polidoro
+  - Email :: peter@polidoro.io
+
+  A sequence container similar to the C++
+  [[http://www.cplusplus.com/reference/vector/vector/][std::vector]], but
+  instead of allocating memory dynamically, this container points to an
+  external, statically allocated c style array. The maximum size is
+  fixed at compile time, but the size can change by pushing and popping
+  elements from the vector. Static memory allocation is used to avoid
+  dynamic allocation problems on very small embedded processors. Care
+  must be taken not to dereference an empty vector, access elements
+  beyond bounds, or use without setting the storage array.
+
+  This library is very similar to
+  [[https://github.com/janelia-arduino/Array][Array]], however Array
+  stores data internally in the container and this library stores data
+  externally. The pointer to the external memory causes this container
+  to use more memory than the Array container, but storing the data
+  externally avoids needing the maximum size as a class template
+  parameter.
+
+* Vector vs Array
+** Vector
+
+   #+BEGIN_SRC C++
+     const int ELEMENT_COUNT_MAX = 5;
+     int storage_array[ELEMENT_COUNT_MAX];
+     Vector<int> vector(storage_array);
+     vector.push_back(77);
+   #+END_SRC
+
+** Array
+
+   #+BEGIN_SRC C++
+     const int ELEMENT_COUNT_MAX = 5;
+     Array<int,ELEMENT_COUNT_MAX> array;
+     array.push_back(77);
+   #+END_SRC

.pio/libdeps/esp32dev/Vector/examples/PlatformIO/README.org

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+#+TITLE: PlatformIO example
+
+This example can be built using [[https://docs.platformio.org][PlatformIO]],
+instead of the Arduino IDE.
+
+** Running the code
+
+*** Platform: native
+
+- To run the code in src/ natively:
+
+   #+BEGIN_SRC sh
+    pio run -e native && .pio/build/native/program
+   #+END_SRC
+
+- To run the code in test/ natively:
+
+   #+BEGIN_SRC sh
+     pio test -e native
+   #+END_SRC
+
+*** Platform: Arduino
+
+Before doing any of this, edit =platformio.ini= for your board.
+
+- To run the code in src/ on a device and then monitor its output:
+
+   #+BEGIN_SRC sh
+     pio run -e uno -t upload && pio device monitor
+   #+END_SRC
+
+- To run the tests on a device:
+
+   #+BEGIN_SRC sh
+     pio test -e uno
+   #+END_SRC
+
+*** All platforms at once
+
+- To run the tests natively on all platforms described in `platformio.ini`:
+
+   #+BEGIN_SRC sh
+     pio test
+   #+END_SRC
+

.pio/libdeps/esp32dev/Vector/examples/PlatformIO/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

.pio/libdeps/esp32dev/Vector/examples/PlatformIO/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

.pio/libdeps/esp32dev/Vector/examples/PlatformIO/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
+
+; common options for all environments
+[env]
+monitor_speed = 115200
+test_speed = 115200
+lib_deps =
+#    https://github.com/janelia-arduino/Vector.git#branchname
+    Vector
+
+[env:uno]
+platform = atmelavr
+framework = arduino
+board = uno
+
+; Documentation for native platform:
+; https://docs.platformio.org/en/latest/platforms/native.html
+[env:native]
+platform = native
+#build_flags = -DNATIVE
+#lib_deps =
+#    ${env.lib_deps}
+#    Dep1
+#    Dep2

.pio/libdeps/esp32dev/Vector/examples/PlatformIO/src/main.cpp

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+#ifdef ARDUINO
+# include <Arduino.h>
+#else
+# include <cstdio>
+#endif
+
+#include <Vector.h>
+
+char storage[] = { 'H', 'e', 'l', 'l', 'o', ' ', 'W', 'o', 'r', 'l', 'd', '!', '\r', '\n' };
+Vector<char> vector(storage, sizeof(storage));
+
+#ifdef ARDUINO
+
+void setup() {
+  Serial.begin(115200);
+  Serial.println("Starting up.");
+}
+
+void loop() {
+  Serial.print("Vector size is ");
+  Serial.println(vector.size());
+
+  Serial.print("Vector content: ");
+  for (unsigned int i = 0; i < vector.size(); i++) {
+    Serial.print(vector.at(i));
+  }
+
+  delay(2000);
+}
+
+#else /* !defined(ARDUINO) */
+
+int main(int argc, char **argv) {
+  puts("Starting up.");
+  printf("Vector size is %d\n", vector.size());
+
+  printf("Vector content: ");
+  for (unsigned int i = 0; i < vector.size(); i++) {
+    putchar(vector.at(i));
+  }
+
+  return 0;
+}
+
+#endif

.pio/libdeps/esp32dev/Vector/examples/PlatformIO/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

.pio/libdeps/esp32dev/Vector/examples/PlatformIO/test/test_vector.cpp

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+// ----------------------------------------------------------------------------
+// test_vector.cpp
+//
+//
+// Authors:
+// Darsey Litzenberger dlitz@dlitz.net
+// ----------------------------------------------------------------------------
+#include <unity.h>
+#include <Vector.h>
+
+static void test_vector_size() {
+  int storage[8] = { 21, 42, 84, 0, 0, 0, 0, 0 };
+  Vector<int> v(storage, 3);
+  TEST_ASSERT_EQUAL(8, v.max_size());
+  TEST_ASSERT_EQUAL(3, v.size());
+  v.push_back(10);
+  v.push_back(20);
+  v.push_back(30);
+  TEST_ASSERT_EQUAL(6, v.size());
+  v.pop_back();
+  TEST_ASSERT_EQUAL(5, v.size());
+}
+
+static void test_vector_iterator() {
+  int storage[8] = { 21, 42, 84, 0, 0, 0, 0, 0 };
+  Vector<int> v(storage, 3);
+
+  const int expected[3] = { 21, 42, 84 };
+  int i=0;
+  for (auto it = v.begin(); it != v.end(); ++it, ++i) {
+    TEST_ASSERT_EQUAL(expected[i], *it);
+  }
+  TEST_ASSERT_EQUAL(3, i);
+}
+
+static void runTests() {
+  UNITY_BEGIN();
+  RUN_TEST(test_vector_size);
+  RUN_TEST(test_vector_iterator);
+  UNITY_END();
+}
+
+#ifdef ARDUINO
+
+void setup() {
+  runTests();
+}
+
+void loop() {
+}
+
+#else /* !defined(ARDUINO) */
+
+int main(int argc, char **argv)
+{
+  runTests();
+  return 0;
+}
+
+#endif /* !defined(ARDUINO) */

.pio/libdeps/esp32dev/Vector/examples/VectorTester/VectorTester.ino

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+#include <Arduino.h>
+#include <Streaming.h>
+#include <Vector.h>
+
+
+const long BAUD = 115200;
+
+const int ELEMENT_COUNT_MAX = 5;
+typedef Vector<int> Elements;
+const size_t DELAY = 500;
+
+void setup()
+{
+  Serial.begin(BAUD);
+  while (!Serial)
+  {
+  // wait for serial port to connect.
+  }
+}
+
+void loop()
+{
+  int storage_array[ELEMENT_COUNT_MAX];
+  Elements vector;
+  vector.setStorage(storage_array);
+  Serial << "vector.max_size(): " << vector.max_size() << endl;
+  Serial << "vector.size(): " << vector.size() << endl;
+  Serial << "vector:" << endl;
+  Serial << vector << endl;
+  delay(DELAY);
+
+  vector.push_back(10);
+  vector.push_back(8);
+  vector.push_back(7);
+  Serial << "vector.max_size(): " << vector.max_size() << endl;
+  Serial << "vector.size(): " << vector.size() << endl;
+  Serial << "vector:" << endl;
+  Serial << vector << endl;
+  vector.remove(0);
+  Serial << "vector.remove(0):" << endl;
+  Serial << vector << endl;
+  vector.remove(1);
+  Serial << "vector.remove(1):" << endl;
+  Serial << vector << endl;
+  delay(DELAY);
+
+  int storage_array2[ELEMENT_COUNT_MAX];
+  Elements vector2(storage_array2);
+  vector2.push_back(1);
+  vector2.push_back(2);
+  vector2.push_back(4);
+  vector2.pop_back();
+  Serial << "vector2.max_size(): " << vector2.max_size() << endl;
+  Serial << "vector2.size(): " << vector2.size() << endl;
+  Serial << "vector2:" << endl;
+  Serial << vector2 << endl;
+  delay(DELAY);
+  Serial << "Print vector2 elements using iterators: ";
+  for (int element : vector2)
+  {
+    Serial << element << " ";
+  }
+  Serial << endl;
+  delay(DELAY);
+
+  int storage_array3[ELEMENT_COUNT_MAX];
+  storage_array3[0] = 3;
+  storage_array3[1] = 5;
+  Elements vector3(storage_array3);
+  Serial << "vector3.max_size(): " << vector3.max_size() << endl;
+  Serial << "vector3.size(): " << vector3.size() << endl;
+  Serial << "vector3:" << endl;
+  Serial << vector3 << endl;
+  delay(DELAY);
+
+  int storage_array4[ELEMENT_COUNT_MAX];
+  storage_array4[0] = 3;
+  storage_array4[1] = 5;
+  Elements vector4(storage_array4,2);
+  Serial << "vector4.max_size(): " << vector4.max_size() << endl;
+  Serial << "vector4.size(): " << vector4.size() << endl;
+  Serial << "vector4:" << endl;
+  Serial << vector4 << endl;
+  delay(DELAY);
+
+  int storage_array5[1];
+  Elements vector5(storage_array5);
+  Serial << "vector5.max_size(): " << vector5.max_size() << endl;
+  Serial << "vector5.size(): " << vector5.size() << endl;
+  Serial << "vector5:" << endl;
+  Serial << vector5 << endl;
+  delay(DELAY);
+
+  int storage_array6[ELEMENT_COUNT_MAX];
+  Elements vector6(storage_array6);
+  vector6.assign(ELEMENT_COUNT_MAX-1,8);
+  Serial << "vector6:" << endl;
+  Serial << vector6 << endl;
+  delay(DELAY);
+}

.pio/libdeps/esp32dev/Vector/library.json

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+{
+  "name": "Vector",
+  "version": "1.2.2",
+  "description": "An array container similar to the C++ std::vector",
+  "repository": {
+    "type": "git",
+    "url": "https://github.com/janelia-arduino/Vector.git"
+  },
+  "authors": [
+    {
+      "name": "Peter Polidoro",
+      "email": "peter@polidoro.io",
+      "url": "https://github.com/peterpolidoro",
+      "maintainer": true
+    }
+  ],
+  "license": "BSD-3-Clause",
+  "homepage": "https://github.com/janelia-arduino/Vector",
+  "frameworks": "*",
+  "platforms": "*"
+}

.pio/libdeps/esp32dev/Vector/library.properties

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+name=Vector
+version=1.2.2
+author=Peter Polidoro <peter@polidoro.io>
+maintainer=Peter Polidoro <peter@polidoro.io>
+sentence=An array container similar to the C++ std::vector
+paragraph=Like this project? Please star it on GitHub!
+category=Data Storage
+url=https://github.com/janelia-arduino/Vector.git
+architectures=*

.pio/libdeps/esp32dev/Vector/src/Vector.h

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+// ----------------------------------------------------------------------------
+// Vector.h
+//
+//
+// Authors:
+// Peter Polidoro peter@polidoro.io
+// ----------------------------------------------------------------------------
+#ifndef VECTOR_H
+#define VECTOR_H
+#ifdef ARDUINO
+#include <Arduino.h>
+#else
+#include <cstddef>
+#endif
+#include "Vector/VectorIterator.h"
+
+
+template <typename T>
+class Vector
+{
+public:
+  Vector();
+  template <size_t MAX_SIZE>
+  Vector(T (&values)[MAX_SIZE],
+    size_t size=0);
+  template <size_t MAX_SIZE>
+  void setStorage(T (&values)[MAX_SIZE],
+    size_t size=0);
+  void setStorage(T * values,
+    size_t max_size,
+    size_t size);
+  const T & operator[](size_t index) const;
+  T & operator[](size_t index);
+  const T & at(size_t index) const;
+  T & at(size_t index);
+  T & front();
+  T & back();
+  void clear();
+  template <typename U>
+  void fill(const U & value);
+  template <typename U,
+    size_t N>
+  void fill(const U (&values)[N]);
+  template <typename U>
+  void fill(const Vector<U> & values);
+  template <typename U>
+  void assign(size_t n,
+    const U & value);
+  template <typename U,
+    size_t N>
+  void assign(size_t n,
+    const U (&values)[N]);
+  template <typename U>
+  void assign(size_t n,
+    const Vector<U> & values);
+  void push_back(const T & value);
+  void pop_back();
+  void remove(size_t index);
+  size_t size() const;
+  size_t max_size() const;
+  bool empty() const;
+  bool full() const;
+  const T * data() const;
+  T * data();
+  typedef VectorIterator<T> iterator;
+  iterator begin();
+  iterator end();
+  typedef VectorIterator<const T> const_iterator;
+  const_iterator begin() const;
+  const_iterator end() const;
+
+private:
+  T * values_;
+  size_t max_size_;
+  size_t size_;
+};
+
+#ifdef ARDUINO    /* `Print` is declared in the Arduino library and gives a compilation error elsewhere. */
+template <typename T>
+inline Print & operator <<(Print & stream,
+  const Vector<T> & vector)
+{
+  stream.print("[");
+  for (size_t i=0; i<vector.size(); ++i)
+  {
+    if (i != 0)
+    {
+      stream.print(",");
+    }
+    stream.print(vector[i]);
+  }
+  stream.print("]");
+  return stream;
+}
+#endif
+
+#include "Vector/VectorDefinitions.h"
+
+#endif

.pio/libdeps/esp32dev/Vector/src/Vector/Vector.cpp

@@ -0,0 +1,8 @@
+// ----------------------------------------------------------------------------
+// Vector.cpp
+//
+//
+// Authors:
+// Peter Polidoro peter@polidoro.io
+// ----------------------------------------------------------------------------
+#include "../Vector.h"

.pio/libdeps/esp32dev/Vector/src/Vector/VectorDefinitions.h

@@ -0,0 +1,248 @@
+// ----------------------------------------------------------------------------
+// VectorDefinitions.h
+//
+//
+// Authors:
+// Peter Polidoro peter@polidoro.io
+// ----------------------------------------------------------------------------
+#ifndef VECTOR_DEFINITIONS_H
+#define VECTOR_DEFINITIONS_H
+
+#ifndef ARDUINO
+#include <cstring>
+#endif
+
+template <typename T>
+Vector<T>::Vector()
+{
+  values_ = NULL;
+  max_size_ = 0;
+  size_ = 0;
+}
+
+template <typename T>
+template <size_t MAX_SIZE>
+Vector<T>::Vector(T (&values)[MAX_SIZE],
+  size_t size)
+{
+  setStorage(values,size);
+}
+
+template <typename T>
+template <size_t MAX_SIZE>
+void Vector<T>::setStorage(T (&values)[MAX_SIZE],
+  size_t size)
+{
+  values_ = values;
+  max_size_ = MAX_SIZE;
+  size_ = size;
+}
+
+template <typename T>
+void Vector<T>::setStorage(T * values,
+  size_t max_size,
+  size_t size)
+{
+  values_ = values;
+  max_size_ = max_size;
+  size_ = size;
+}
+
+template <typename T>
+const T & Vector<T>::operator[](size_t index) const
+{
+  return values_[index];
+}
+
+template <typename T>
+T & Vector<T>::operator[](size_t index)
+{
+  return values_[index];
+}
+
+template <typename T>
+T & Vector<T>::at(size_t index)
+{
+  return values_[index];
+}
+
+template <typename T>
+const T & Vector<T>::at(size_t index) const
+{
+  return values_[index];
+}
+
+template <typename T>
+T & Vector<T>::front()
+{
+  return values_[0];
+}
+
+template <typename T>
+T & Vector<T>::back()
+{
+  return values_[size_-1];
+}
+
+template <typename T>
+void Vector<T>::clear()
+{
+  size_ = 0;
+}
+
+template <typename T>
+template <typename U>
+void Vector<T>::fill(const U & value)
+{
+  assign(max_size_,value);
+}
+
+template <typename T>
+template <typename U,
+  size_t N>
+void Vector<T>::fill(const U (&values)[N])
+{
+  assign(N,values);
+}
+
+template <typename T>
+template <typename U>
+void Vector<T>::fill(const Vector<U> & values)
+{
+  assign(values.size(),values);
+}
+
+template <typename T>
+template <typename U>
+void Vector<T>::assign(size_t n,
+  const U & value)
+{
+  size_t assign_size = ((n < max_size_) ? n : max_size_);
+  size_ = assign_size;
+  for (size_t i=0; i<assign_size; ++i)
+  {
+    values_[i] = value;
+  }
+}
+
+template <typename T>
+template <typename U,
+  size_t N>
+void Vector<T>::assign(size_t n,
+  const U (&values)[N])
+{
+  size_t n_smallest = ((n < N) ? n : N);
+  size_t assign_size = ((n_smallest < max_size_) ? n_smallest : max_size_);
+  size_ = assign_size;
+  for (size_t i=0; i<assign_size; ++i)
+  {
+    values_[i] = values[i];
+  }
+}
+
+template <typename T>
+template <typename U>
+void Vector<T>::assign(size_t n,
+  const Vector<U> & values)
+{
+  size_t n_smallest = ((n < values.size()) ? n : values.size());
+  size_t assign_size = ((n_smallest < max_size_) ? n_smallest : max_size_);
+  size_ = assign_size;
+  for (size_t i=0; i<assign_size; ++i)
+  {
+    values_[i] = values[i];
+  }
+}
+
+template <typename T>
+void Vector<T>::push_back(const T & value)
+{
+  if ((values_ != NULL) && (size_ < max_size_))
+  {
+    values_[size_++] = value;
+  }
+}
+
+template <typename T>
+void Vector<T>::pop_back()
+{
+  if (size_ > 0)
+  {
+    --size_;
+  }
+}
+
+template <typename T>
+void Vector<T>::remove(size_t index)
+{
+  if (size_ > index)
+  {
+    for (size_t i=index; i<(size_-1); ++i)
+    {
+      values_[i] = values_[i+1];
+    }
+    --size_;
+  }
+}
+
+template <typename T>
+size_t Vector<T>::size() const
+{
+  return size_;
+}
+
+template <typename T>
+size_t Vector<T>::max_size() const
+{
+  return max_size_;
+}
+
+template <typename T>
+bool Vector<T>::empty() const
+{
+  return size_ == 0;
+}
+
+template <typename T>
+bool Vector<T>::full() const
+{
+  return size_ == max_size_;
+}
+
+template <typename T>
+T * Vector<T>::data()
+{
+  return values_;
+}
+
+template <typename T>
+const T * Vector<T>::data() const
+{
+  return values_;
+}
+
+template <typename T>
+typename Vector<T>::iterator Vector<T>::begin()
+{
+  return iterator(values_);
+}
+
+template <typename T>
+typename Vector<T>::iterator Vector<T>::end()
+{
+  return iterator(values_,size_);
+}
+
+template <typename T>
+typename Vector<T>::const_iterator Vector<T>::begin() const
+{
+  return const_iterator(values_);
+}
+
+template <typename T>
+typename Vector<T>::const_iterator Vector<T>::end() const
+{
+  return const_iterator(values_,size_);
+}
+
+#endif

.pio/libdeps/esp32dev/Vector/src/Vector/VectorIterator.h

@@ -0,0 +1,45 @@
+// ----------------------------------------------------------------------------
+// VectorIterator.h
+//
+//
+// Authors:
+// Peter Polidoro peter@polidoro.io
+// ----------------------------------------------------------------------------
+#ifndef VECTOR_ITERATOR_H
+#define VECTOR_ITERATOR_H
+
+template<typename T>
+class VectorIterator
+{
+public:
+  VectorIterator(T * values_ptr) : values_ptr_{values_ptr}, position_{0} {}
+
+  VectorIterator(T * values_ptr, size_t size) : values_ptr_{values_ptr}, position_{size} {}
+
+  bool operator!=(const VectorIterator<T> & other) const
+  {
+    return !(*this == other);
+  }
+
+  bool operator==(const VectorIterator<T> & other) const
+  {
+    return position_ == other.position_;
+  }
+
+  VectorIterator & operator++()
+  {
+    ++position_;
+    return *this;
+  }
+
+  T & operator*() const
+  {
+    return *(values_ptr_ + position_);
+  }
+
+private:
+  T * values_ptr_;
+  size_t position_;
+};
+
+#endif