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 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:d1_mini_lite]
+platform = espressif8266
+board = d1_mini_lite
+framework = arduino
+lib_deps = 
+	bblanchon/ArduinoJson@^7.2.0
+	adafruit/Adafruit GFX Library@^1.11.11
+	adafruit/Adafruit SSD1306@^2.5.13
+	chunkysteveo/OctoPrintAPI@^1.1.6

src/config.h

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+// WiFi settings
+#define WIFI_SSID "Your_SSID"
+#define WIFI_PASSWORD "Your_Password"
+
+// OctoPrint settings
+#define OCTOPRINT_HOST "your.octoprint.local"
+#define OCTOPRINT_PORT 9000
+#define OCTOPRINT_API_KEY "Your_OctoPrint_API_Key"
+#define OCTOPRINT_API_REFRESH_INTERVAL 30000
+
+// OLED display settings
+#define SCREEN_WIDTH 128
+#define SCREEN_HEIGHT 64
+#define OLED_RESET -1
+#define FRAMERATE 8

src/main.cpp

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+
+#include "config.h"
+#include "setup.h"
+
+void loop() {
+  // put your main code here, to run repeatedly:
+}

src/setup.h

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+#include <Arduino.h>
+#include <ESP8266WiFi.h>
+#include <WiFiClient.h>
+#include <ArduinoJson.h>
+#include <Wire.h>
+#include <Adafruit_GFX.h>
+#include <Adafruit_SSD1306.h>
+#include <OctoPrintAPI.h>
+
+String printerOperational;
+String printerPaused;
+String printerPrinting;
+String printerReady;
+String printerText;
+String printerHotend;
+String printerTarget;
+String payload;
+
+WiFiClient client;
+
+OctoprintApi api(client, ip, octoprint_httpPort, octoprint_apikey);  
+
+void setup() {
+
+// Connect to wifi
+  Serial.begin(115200);
+  Serial.println("Connecting to WiFi...");
+  Serial.print("SSID: ");
+  Serial.println(WIFI_SSID);
+
+  Serial.print("OctoPrint URL: ");
+  Serial.println(OCTOPRINT_URL);
+  Serial.print("OctoPrint API Key: ");
+  Serial.println(OCTOPRINT_API_KEY);
+}

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