M5 LCD Emulator

🚧 Some M5.Lcd function NOT yet implemented! (Look here) 🚧

Require

• OpenCV (Version 4.3.0 Recommended)
• VisualStudio 2019 (Windows)

Sample code (show main.cpp)

/* M5Stack CODE BEGIN */
#include "M5Stack.h"

void setup() {
	for (int i = 0; i < COLORS_NUM; i++) {
		M5.Lcd.fillScreen(COLORS[i]);
		delay(1000);
	}

	M5.Lcd.fillScreen(BLACK);
	for (int i = 1; i < 8; i++) {
		M5.Lcd.setTextSize(i);
		M5.Lcd.print("Hello World\n");
	}
}
/* M5Stack CODE END */

How to use

Windows

1. Open M5_LCD_Emulator.sln.
2. Press Ctrl+F5.

Linux (Ubuntu)

1. Execute cd M5_LCD_Emulator/M5_LCD_Emulator.
2. Execute make.
3. Execute ./m5hello.

Setup OpenCV (Windows with VisualStudio)

1. Download OpenCV from here.
2. Extract to install directory (exp. C:\).
3. Add C:\opencv\build\x64\vc14\bin to environment path.
4. Make empty project.
5. Select x64 platform.
6. Open Project -> Property.
   • Open VC++ directory > Include directory and add C:\opencv\build\include.
   • Open VC++ directory > Library directory and add C:\opencv\build\x64\vc14\lib.
   • Open Linker > Input > Additional dependent files and add opencv_worldxxxd.lib. (xxx is version, look at opencv dir)

Setup OpenCV (Ubuntu)

0. Install some package for build OpenCV.

sudo apt update
sudo apt upgrade -y
sudo apt install build-essential git cmake pkg-config
sudo apt install libgtk2.0-dev libcanberra-gtk-module libcanberra-gtk3-module

1. Download OpenCV from here.
2. Extract to install directory (exp. ~/).
3. Execute below command to build OpenCV.

cd ~
cd opencv-4.3.0
mkdir build
cd build
cmake -D CMAKE_BUILD_TYPE=Release -D CMAKE_INSTALL_PREFIX=/usr/local ..
make -j4
sudo make install

4. Export include path (If you need, write below command to ~/.bashrc).

export CPATH=/usr/local/include/opencv4

Reference

• 【動画解説付き】OpenCV C++版をWindows10にインストールする方法【Visual Studio 2017】
• m5-docs/lcd.md at master · m5stack/m5-docs · GitHub