added platformIO project

arduino/.gitignore

@@ -0,0 +1,5 @@
+.pio
+.vscode/.browse.c_cpp.db*
+.vscode/c_cpp_properties.json
+.vscode/launch.json
+.vscode/ipch

arduino/.vscode/c_cpp_properties.json

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+{
+    "configurations": [
+        {
+            "name": "!!! WARNING !!! AUTO-GENERATED FILE, PLEASE DO NOT MODIFY IT AND USE https://docs.platformio.org/page/projectconf/section_env_build.html#build-flags"
+        },
+        {
+            "name": "Win32",
+            "includePath": [
+                "c:/Users/johan/repos/lern-tracking-system/arduino/include",
+                "c:/Users/johan/repos/lern-tracking-system/arduino/src",
+                "c:/Users/johan/repos/lern-tracking-system/arduino/.pio/libdeps/uno/BMP280_DEV",
+                "C:/Users/johan/.platformio/packages/framework-arduino-avr/libraries/SPI/src",
+                "c:/Users/johan/repos/lern-tracking-system/arduino/.pio/libdeps/uno/MPU9250",
+                "C:/Users/johan/.platformio/packages/framework-arduino-avr/libraries/Wire/src",
+                "C:/Users/johan/.platformio/packages/framework-arduino-avr/cores/arduino",
+                "C:/Users/johan/.platformio/packages/framework-arduino-avr/variants/standard",
+                "C:/Users/johan/.platformio/lib/Adafruit BusIO_ID6214",
+                "C:/Users/johan/.platformio/lib/Adafruit GFX Library_ID13",
+                "C:/Users/johan/.platformio/lib/Adafruit SSD1306",
+                "C:/Users/johan/.platformio/lib/ArduinoJson_ID64/src",
+                "C:/Users/johan/.platformio/lib/ArduinoJson_ID64@5.13.4/src",
+                "C:/Users/johan/.platformio/lib/PID_ID2",
+                "C:/Users/johan/.platformio/lib/PubSubClient_ID89/src",
+                "C:/Users/johan/.platformio/lib/QC3Control_ID1856/src",
+                "C:/Users/johan/.platformio/lib/Stepper_ID874/src",
+                "C:/Users/johan/.platformio/lib/TinyGPSPlus_ID1655/src",
+                "C:/Users/johan/.platformio/lib/WifiManager_ID567",
+                "C:/Users/johan/.platformio/packages/framework-arduino-avr/libraries/EEPROM/src",
+                "C:/Users/johan/.platformio/packages/framework-arduino-avr/libraries/HID/src",
+                "C:/Users/johan/.platformio/packages/framework-arduino-avr/libraries/SoftwareSerial/src",
+                "C:/Users/johan/.platformio/packages/tool-unity",
+                ""
+            ],
+            "browse": {
+                "limitSymbolsToIncludedHeaders": true,
+                "path": [
+                    "c:/Users/johan/repos/lern-tracking-system/arduino/include",
+                    "c:/Users/johan/repos/lern-tracking-system/arduino/src",
+                    "c:/Users/johan/repos/lern-tracking-system/arduino/.pio/libdeps/uno/BMP280_DEV",
+                    "C:/Users/johan/.platformio/packages/framework-arduino-avr/libraries/SPI/src",
+                    "c:/Users/johan/repos/lern-tracking-system/arduino/.pio/libdeps/uno/MPU9250",
+                    "C:/Users/johan/.platformio/packages/framework-arduino-avr/libraries/Wire/src",
+                    "C:/Users/johan/.platformio/packages/framework-arduino-avr/cores/arduino",
+                    "C:/Users/johan/.platformio/packages/framework-arduino-avr/variants/standard",
+                    "C:/Users/johan/.platformio/lib/Adafruit BusIO_ID6214",
+                    "C:/Users/johan/.platformio/lib/Adafruit GFX Library_ID13",
+                    "C:/Users/johan/.platformio/lib/Adafruit SSD1306",
+                    "C:/Users/johan/.platformio/lib/ArduinoJson_ID64/src",
+                    "C:/Users/johan/.platformio/lib/ArduinoJson_ID64@5.13.4/src",
+                    "C:/Users/johan/.platformio/lib/PID_ID2",
+                    "C:/Users/johan/.platformio/lib/PubSubClient_ID89/src",
+                    "C:/Users/johan/.platformio/lib/QC3Control_ID1856/src",
+                    "C:/Users/johan/.platformio/lib/Stepper_ID874/src",
+                    "C:/Users/johan/.platformio/lib/TinyGPSPlus_ID1655/src",
+                    "C:/Users/johan/.platformio/lib/WifiManager_ID567",
+                    "C:/Users/johan/.platformio/packages/framework-arduino-avr/libraries/EEPROM/src",
+                    "C:/Users/johan/.platformio/packages/framework-arduino-avr/libraries/HID/src",
+                    "C:/Users/johan/.platformio/packages/framework-arduino-avr/libraries/SoftwareSerial/src",
+                    "C:/Users/johan/.platformio/packages/tool-unity",
+                    ""
+                ]
+            },
+            "defines": [
+                "PLATFORMIO=50003",
+                "ARDUINO_AVR_UNO",
+                "F_CPU=16000000L",
+                "ARDUINO_ARCH_AVR",
+                "ARDUINO=10808",
+                "__AVR_ATmega328P__",
+                ""
+            ],
+            "intelliSenseMode": "gcc-x64",
+            "cStandard": "c11",
+            "cppStandard": "c++11",
+            "compilerPath": "C:/Users/johan/.platformio/packages/toolchain-atmelavr/bin/avr-gcc.exe",
+            "compilerArgs": [
+                "-mmcu=atmega328p",
+                ""
+            ]
+        }
+    ],
+    "version": 4
+}

arduino/.vscode/extensions.json

@@ -0,0 +1,7 @@
+{
+    // See http://go.microsoft.com/fwlink/?LinkId=827846
+    // for the documentation about the extensions.json format
+    "recommendations": [
+        "platformio.platformio-ide"
+    ]
+}

arduino/.vscode/launch.json

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+// AUTOMATICALLY GENERATED FILE. PLEASE DO NOT MODIFY IT MANUALLY
+
+// PIO Unified Debugger
+//
+// Documentation: https://docs.platformio.org/page/plus/debugging.html
+// Configuration: https://docs.platformio.org/page/projectconf/section_env_debug.html
+
+{
+    "version": "0.2.0",
+    "configurations": [
+        {
+            "type": "platformio-debug",
+            "request": "launch",
+            "name": "PIO Debug",
+            "executable": "c:/Users/johan/repos/lern-tracking-system/arduino/.pio/build/uno/firmware.elf",
+            "projectEnvName": "uno",
+            "toolchainBinDir": "C:/Users/johan/.platformio/packages/toolchain-atmelavr/bin",
+            "preLaunchTask": {
+                "type": "PlatformIO",
+                "task": "Pre-Debug"
+            },
+            "internalConsoleOptions": "openOnSessionStart"
+        },
+        {
+            "type": "platformio-debug",
+            "request": "launch",
+            "name": "PIO Debug (skip Pre-Debug)",
+            "executable": "c:/Users/johan/repos/lern-tracking-system/arduino/.pio/build/uno/firmware.elf",
+            "projectEnvName": "uno",
+            "toolchainBinDir": "C:/Users/johan/.platformio/packages/toolchain-atmelavr/bin",
+            "internalConsoleOptions": "openOnSessionStart"
+        }
+    ]
+}

arduino/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

arduino/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

arduino/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:uno]
+platform = atmelavr
+board = uno
+framework = arduino
+monitor_speed = 115200
+board_build.f_cpu = 16000000L
+lib_deps = 
+	hideakitai/MPU9250@^0.2.3
+	martinl1/BMP280_DEV@^1.0.18

arduino/src/main.cpp

@@ -0,0 +1,37 @@
+#include <Arduino.h>
+#include <BMP280_DEV.h>
+#include <MPU9250.h>
+
+#define US_TX_0_PIN 3
+#define US_RX_0_PIN 2
+#define US_RX_1_PIN 1
+
+MPU9250 mpu;
+
+char outputBuffer[64];
+
+void setup() {
+  Serial.begin(115200);
+  Serial.println("boot");
+  pinMode(US_TX_0_PIN, OUTPUT);
+  Wire.begin();
+  delay(2000);
+
+  mpu.setup(0x68);  // change to your own address
+}
+
+void loop() {
+  snprintf(outputBuffer, sizeof(outputBuffer), "DATA:%d,%d,%d,%d,%d,%d,%d,%d,%d,%d,%d,%d\r\n",
+    //acustic RTT 
+    0, 1,
+    //magnetic field
+    2, 3, 4,
+    //accelerometer
+    5, 6, 7,
+    //gyroscope
+    8, 9, 10,
+    //pressure
+    11
+  );
+  Serial.write(outputBuffer);
+}

arduino/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