update

.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:ModuleAir]
+platform = espressif32
+board = esp32dev
+lib_deps =
+  2dom/PxMatrix LED MATRIX library@^1.8.2
+  adafruit/Adafruit GFX Library@^1.10.12
+
+monitor_speed = 115200
+framework = arduino

src/main.cpp

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+/*
+Script de base pour afficher un message sur une matrice LED 64x32
+*/
+#include <Arduino.h>
+#include <PxMatrix.h>
+
+// Define Matrix pins for ESP32 (voir https://github.com/aircarto/ModuleAir_V2.1/blob/main/pinMap.md)
+
+#define P_LAT 25
+#define P_A 17
+#define P_B 33
+#define P_C 4
+#define P_D 12
+#define P_E 15
+#define P_OE 16
+
+hw_timer_t * timer = NULL;
+portMUX_TYPE timerMux = portMUX_INITIALIZER_UNLOCKED;
+
+//define matrix size
+#define matrix_width 64
+#define matrix_height 32
+
+uint8_t display_draw_time = 30; //10-50 is usually fine
+PxMATRIX display(64, 32, P_LAT, P_OE, P_A, P_B, P_C, P_D, P_E);
+
+//Need this two functions for ESP32 to refresh display
+void IRAM_ATTR display_updater()
+{
+	// Increment the counter and set the time of ISR
+	portENTER_CRITICAL_ISR(&timerMux);
+	display.display(display_draw_time);
+	portEXIT_CRITICAL_ISR(&timerMux);
+}
+
+void display_update_enable(bool is_enable)
+{
+	Serial.print("Call display_update_enable function with:");
+	if (is_enable)
+	{
+		Serial.println("true");
+		//timer = timerBegin(0, 80, true);
+		timerAttachInterrupt(timer, &display_updater, true);
+		timerAlarmWrite(timer, 4000, true);
+		timerAlarmEnable(timer);
+	}
+	else
+	{
+		Serial.println("false");
+		timerDetachInterrupt(timer);
+		timerAlarmDisable(timer);
+	}
+}
+
+
+/*
+SETUP AND LOOP
+*/
+
+void setup() {
+  // put your setup code here, to run once:
+  Serial.begin(115200);
+  Serial.println("Hello, Arduino!");
+  display.begin(8);
+  display.setFastUpdate(true);
+
+  // ⭐ INITIALISER LE TIMER ICI ⭐
+  timer = timerBegin(0, 80, true);  // Timer 0, prescaler 80, count up
+  timerAlarmWrite(timer, 4000, true);  // Interruption toutes les 4ms
+  
+  // Activer le rafraîchissement
+  display_update_enable(true);
+}
+
+void loop() {
+  // put your main code here, to run repeatedly:
+  Serial.println("Showing message on LED matrix");
+
+  display.fillScreen(0); // Clear the display
+  display.setCursor(1, 1);
+  display.setTextColor(display.color565(0, 255, 0));
+  display.setTextSize(1);
+  display.print("Hello");
+
+  delay(1000);
+}
+

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