Version 3 Software (ATmega4809)

Board Versions/70mm by 50mm Ver3.0 ATmega4809/Software/PlatformIO/.gitignore

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

Board Versions/70mm by 50mm Ver3.0 ATmega4809/Software/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

Board Versions/70mm by 50mm Ver3.0 ATmega4809/Software/PlatformIO/include/solderplate.h

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+#ifndef solderplate_h
+#define solderplate_h
+
+float getTemp();
+void cancelledPB();
+void cancelledTimer();
+void coolDown();
+void completed();
+bool heat(byte maxTemp);
+void main_menu();
+
+#endif

Board Versions/70mm by 50mm Ver3.0 ATmega4809/Software/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

Board Versions/70mm by 50mm Ver3.0 ATmega4809/Software/PlatformIO/platformio.ini

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+[platformio]
+default_envs = Upload_UPDI
+
+[env]
+platform = atmelmegaavr
+board = ATmega4809
+framework = arduino
+board_build.f_cpu = 16000000L
+board_hardware.oscillator = internal
+lib_deps = adafruit/Adafruit SSD1306@^2.5.7
+
+
+; Run the following command to upload with this environment
+; pio run -e Upload_UPDI -t upload
+[env:Upload_UPDI]
+; Upload protocol for UPDI upload
+upload_protocol = jtag2updi
+upload_speed = 115200
+upload_flags =
+
+
+; run the following command to set fuses
+; pio run -e fuses_bootloader -t fuses
+; run the following command to set fuses + burn bootloader
+; pio run -e fuses_bootloader -t bootloader
+[env:fuses_bootloader]
+; Upload protocol for used to set fuses/bootloader
+upload_protocol = ${env:Upload_UPDI.upload_protocol}
+upload_flags =
+; Hardware settings
+board_hardware.bod = 2.7v
+board_hardware.eesave = yes
+board_hardware.uart = no_bootloader
+board_hardware.rstpin = reset