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 convention is to give header files names that end with `.h'.
+
+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 the executable file.
+
+The source code of each library should be placed in a separate directory
+("lib/your_library_name/[Code]").
+
+For example, see the structure of the following example libraries `Foo` and `Bar`:
+
+|--lib
+|  |
+|  |--Bar
+|  |  |--docs
+|  |  |--examples
+|  |  |--src
+|  |     |- Bar.c
+|  |     |- Bar.h
+|  |  |- library.json (optional. for 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
+
+Example contents of `src/main.c` using Foo and Bar:
+```
+#include <Foo.h>
+#include <Bar.h>
+
+int main (void)
+{
+  ...
+}
+
+```
+
+The PlatformIO Library Dependency Finder will find automatically dependent
+libraries by 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:nanoatmega328new]
+platform = atmelavr
+board = nanoatmega328new
+framework = arduino

src/main.cpp

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+#include <Arduino.h>
+
+#define LED 13
+
+double f = 0.1;
+double t = 0.0;
+double Ts = 0.25;
+
+void senddata(double _t, double _f, double _A=1) {
+
+  float _y;
+
+  _y = _A * sin(2 * PI * _f * _t);
+
+  Serial.print(_t);
+  Serial.print(",");
+  Serial.println(_y);
+
+}
+
+void setup() {
+
+  Serial.begin(115200);
+
+}
+
+void loop() {
+
+  senddata(t, f);
+  delay(Ts * 1000);
+
+  t = t + Ts;
+  
+}

src/readdata.py

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+import matplotlib.pyplot as plt
+import serial
+import glob
+import numpy as np
+
+print('Hello, World!')
+
+# Get Arduino Port
+arduinoports = glob.glob('/dev/*USB*')
+arduinoport = arduinoports[0]
+
+print(arduinoports)
+
+# Open Arduino Port
+arduino = serial.Serial(arduinoport, 115200)
+arduino.close()
+arduino.open()
+
+#initiate the data
+tdata = np.array([])
+ydata = np.array([])
+
+# create the plot
+plt.ion()
+fig = plt.figure(1)
+fig.clf()
+ax = fig.add_subplot(111)
+
+dataline, = ax.plot(tdata, ydata, 'o')
+ax.set_ylim([-1.5, 1.5])
+ax.set_xlim([0,20])
+
+# plt.show()
+
+#define the plot update function
+def plotupdate(_t, _y):
+    
+
+    ax.clear()
+
+    # dataline.set_xdata(_t)
+    #dataline.set_ydata(_y)
+    ax.plot(ydata)
+
+
+    #ax.relim()
+    #ax.autoscale_view()
+
+    fig.canvas.draw()    
+    fig.canvas.flush_events()
+
+    plt.pause(0.05)
+
+
+while True:
+    
+    #read the raw data from the arduino
+    rawdata = arduino.readline()
+    #rawdata = arduino.read_until(b'\n')
+
+    print(rawdata)
+
+    splitdata = rawdata.decode().split(',')
+
+    tdata = np.append(tdata, float(splitdata[0]))
+    ydata = np.append(ydata, float(splitdata[1]))
+    
+    tdata = tdata[-100:]
+    ydata = ydata[-100:]
+
+    #plotupdate(tdata, ydata)
+
+    #dataline.set_xdata(tdata[-1])
+    #dataline.set_ydata(ydata[-1])
+    
+    ax.clear()
+    ax.plot(tdata, ydata, 'o')
+
+    ax.relim()
+    #ax.autoscale_view()
+
+    #ax.set_xlim([0, 100])
+
+    fig.canvas.draw()    
+    fig.canvas.flush_events()
+
+    plt.pause(0.05)
+    
+
+
+
+
+
+
+
+
+

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