Merge pull request #104 from Terrapin-Rocket-Team/69-basic-raspberry-…

…pi-radio-code

Basic Raspberry Pi Teensy Interface and Live Video Radio Code

Side_Projects/Live Video/.gitignore

@@ -2,9 +2,9 @@
 *.mp4
 *.av1
 *.ivf
-/.vscode
-/build
-/radio-interface/build
-/aom
-/bcm2835*
-/RadioHead
+*.log
+.vscode/
+build/
+aom/
+bcm2835*/
+RadioHead/

Side_Projects/Live Video/crontab-config

@@ -21,4 +21,4 @@
 # For more information see the manual pages of crontab(5) and cron(8)
 # 
 # m h  dom mon dow   command
-@reboot python ~/lv-github/scripts/video_handler.py
+@reboot python ~/lv-github/scripts/live_video_handler.py

Side_Projects/Live Video/live-video-teensy/.gitignore

@@ -0,0 +1,6 @@
+.pio
+.vscode/.browse.c_cpp.db*
+.vscode/c_cpp_properties.json
+.vscode/launch.json
+.vscode/ipch
+serial_logs/

Side_Projects/Live Video/live-video-teensy/include/README

@@ -0,0 +1,39 @@
+
+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

Side_Projects/Live Video/live-video-teensy/include/Radio.h

@@ -0,0 +1,45 @@
+#ifndef RADIO_H
+#define RADIO_H
+
+#if defined(ARDUINO)
+#include <Arduino.h>
+#elif defined(_WIN32) || defined(_WIN64) // Windows
+#include <cstdint>
+#include <string>
+#include <cstring>
+#elif defined(__unix__)  // Linux
+// TODO
+#elif defined(__APPLE__) // OSX
+// TODO
+#endif
+
+/*
+Types:
+- ENCT_TELEMETRY: latitude,longitude,altitude,speed,heading,precision,stage,t0 <-> APRS message
+- ENCT_VIDEO: char* filled with raw bytes <-> Raw byte array
+- ENCT_GROUNDSTATION: Source:Value,Destination:Value,Path:Value,Type:Value,Body:Value <-> APRS message
+- ENCT_NONE: no encoding is applied, same as using tx()
+*/
+enum EncodingType
+{
+    ENCT_TELEMETRY,
+    ENCT_VIDEO,
+    ENCT_GROUNDSTATION,
+    ENCT_NONE
+};
+
+class Radio
+{
+public:
+    virtual ~Radio(){}; // Virtual descructor. Very important
+    virtual bool begin() = 0;
+    virtual bool tx(const char *message, int len = -1) = 0;
+    virtual const char *rx() = 0;
+    virtual bool encode(char *message, EncodingType type, int len = -1) = 0;
+    virtual bool decode(char *message, EncodingType type, int len = -1) = 0;
+    virtual bool send(const char *message, EncodingType type, int len = -1) = 0;
+    virtual const char *receive(EncodingType type) = 0;
+    virtual int RSSI() = 0;
+};
+
+#endif // RADIO_H

Side_Projects/Live Video/live-video-teensy/lib/README

@@ -0,0 +1,46 @@
+
+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

Side_Projects/Live Video/live-video-teensy/lib/RadioHead/LICENSE

@@ -0,0 +1,17 @@
+This software is Copyright (C) Mike McCauley. Use is subject to license
+conditions. The main licensing options available are GPL V3 or Commercial:
+
+Open Source Licensing GPL V3
+
+This is the appropriate option if you want to share the source code of your
+application with everyone you distribute it to, and you also want to give them
+the right to share who uses it. If you wish to use this software under Open
+Source Licensing, you must contribute all your source code to the open source
+community in accordance with the GPL Version 3 when your application is
+distributed. See http://www.gnu.org/copyleft/gpl.html
+
+Commercial Licensing
+
+This is the appropriate option if you are creating proprietary applications
+and you are not prepared to distribute and share the source code of your
+application. Contact info@airspayce for details.