Initial Commit

.gitignore

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

.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"
+    ]
+}

.vscode/settings.json

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+{
+    "files.associations": {
+        "array": "cpp",
+        "atomic": "cpp",
+        "bit": "cpp",
+        "*.tcc": "cpp",
+        "cctype": "cpp",
+        "chrono": "cpp",
+        "clocale": "cpp",
+        "cmath": "cpp",
+        "compare": "cpp",
+        "concepts": "cpp",
+        "cstdarg": "cpp",
+        "cstddef": "cpp",
+        "cstdint": "cpp",
+        "cstdio": "cpp",
+        "cstdlib": "cpp",
+        "cstring": "cpp",
+        "ctime": "cpp",
+        "cwchar": "cpp",
+        "cwctype": "cpp",
+        "deque": "cpp",
+        "list": "cpp",
+        "map": "cpp",
+        "set": "cpp",
+        "unordered_map": "cpp",
+        "vector": "cpp",
+        "exception": "cpp",
+        "algorithm": "cpp",
+        "functional": "cpp",
+        "iterator": "cpp",
+        "memory": "cpp",
+        "memory_resource": "cpp",
+        "numeric": "cpp",
+        "optional": "cpp",
+        "random": "cpp",
+        "ratio": "cpp",
+        "string": "cpp",
+        "string_view": "cpp",
+        "system_error": "cpp",
+        "tuple": "cpp",
+        "type_traits": "cpp",
+        "utility": "cpp",
+        "initializer_list": "cpp",
+        "iosfwd": "cpp",
+        "limits": "cpp",
+        "new": "cpp",
+        "ostream": "cpp",
+        "ranges": "cpp",
+        "stdexcept": "cpp",
+        "streambuf": "cpp",
+        "cinttypes": "cpp",
+        "typeinfo": "cpp",
+        "variant": "cpp"
+    }
+}

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 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:nodemcuv2]
+platform = espressif8266
+board = nodemcuv2
+framework = arduino
+monitor_speed = 115200

src/credentials.h.template

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+#define PUSHOVER_APP_TOKEN ""
+#define PUSHOVER_USER_TOKEN ""
+#define SSID "" // The SSID (name) of the Wi-Fi network you want to connect to
+#define WIFI_PASSWORD ""

src/main.cpp

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+#include <Arduino.h>
+#include <ESP8266WiFi.h> // Include the Wi-Fi library
+#include <ESP8266HTTPClient.h>
+#include <WiFiClient.h>
+
+#include <credentials.h>
+#include <string>
+#define NOTIFICATION_MESSAGE "notification test"
+
+#define LED 2
+using namespace std;
+
+const char* pushAPI = "https://api.pushover.net/1/messages.json";
+
+BearSSL::WiFiClientSecure *client;
+HTTPClient https;
+
+string baseMessageString = "{\"user\":\"";
+
+string getNotificationPayload(string msg)
+{
+  
+
+  string buf = baseMessageString;
+  buf.append(msg);
+  buf.append("\"}");
+  return buf;
+}
+bool sendNotification(string msg)
+{
+  if ((WiFi.status() == WL_CONNECTED))
+  {
+
+    // Initializing an HTTPS communication using the secure client
+    Serial.print("[HTTPS] begin...\n");
+    if (https.begin(*client, pushAPI))
+    { // HTTPS
+      Serial.print("[HTTPS] GET...\n");
+      https.addHeader("Content-Type", "application/json");
+      // start connection and send HTTP header
+      string payload = getNotificationPayload(msg);
+      Serial.println(payload.data());
+      int httpCode = https.POST(payload.data());
+      // httpCode will be negative on error
+      if (httpCode > 0)
+      {
+        // HTTP header has been send and Server response header has been handled
+        Serial.printf("[HTTPS] GET... code: %d\n", httpCode);
+        Serial.println(https.getString());
+
+        // file found at server
+        if (httpCode == HTTP_CODE_OK || httpCode == HTTP_CODE_MOVED_PERMANENTLY)
+        {
+          // return https.getString();
+          return true;
+          // return payload;
+        }
+      }
+      else
+      {
+        Serial.printf("[HTTPS] GET... failed, error: %s\n", https.errorToString(httpCode).c_str());
+      }
+
+      https.end();
+    }
+    else
+    {
+      Serial.printf("[HTTPS] Unable to connect\n");
+    }
+  }
+    return false;
+
+}
+
+void setup()
+{
+  baseMessageString.append(PUSHOVER_USER_TOKEN);
+  baseMessageString.append("\",\"token\":\"" );
+  baseMessageString.append(PUSHOVER_APP_TOKEN);
+  baseMessageString.append("\",\"message\":\"");
+  Serial.begin(115200); // Start the Serial communication to send messages to the computer
+  pinMode(LED, OUTPUT);
+
+  WiFi.begin(SSID, WIFI_PASSWORD);
+  while (WiFi.status() != WL_CONNECTED)
+  {
+    Serial.print('.');
+    delay(1000);
+  }
+  client = new BearSSL::WiFiClientSecure();
+
+  // Ignore SSL certificate validation
+  client->setInsecure();
+
+  // create an HTTPClient instance
+}
+
+void loop()
+{
+  // put your main code here, to run repeatedly:
+  sendNotification(NOTIFICATION_MESSAGE);
+  Serial.println();
+  Serial.println("Waiting 2min before the next round...");
+  delay(120000);
+}

test/README

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+
+This directory is intended for PlatformIO Test Runner 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/en/latest/advanced/unit-testing/index.html