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【Banana PI Leaf S3开发板试用体验】SPI驱动TFT-LCD显示

2022-11-12 17:37:08 998

0 Arduino IDE开发板选型：库安装后需要进行配置库安装好后并不能直接通过示例来编译上传到合宙ESP32C3上面，因为，直接不能直接通过编译，引脚需要进行修改。 TFT_eSPI安装，可以通过管理库，搜索关键字TFT_eSPI找到，或者通过下面的链接，选择下载最新版本的库让后解压导入到Arduino对应的库目录下。 TFT_eSPI库下载：https://www.arduino.cc/reference/en/libraries/tft_espi/ 在Arduino IDE库文件位置，找到安装好的TFT_eSPI库文件夹：C:UsersAdministratorDocumentsArduinolibrariesTFT_eSPI 找到User_Setup.h 修改头文件中的引脚定义示例代码： //The Game of Life, also known simply as Life, is a cellular automaton //devised by the British mathematician John Horton Conway in 1970. // https://en.wikipedia.org/wiki/Conway's_Game_of_Life // See license at end of file. // Adapted by Bodmer //#define CONFIG_IDF_TARGET_ESP32C3 #include //点击这里会自动打开管理库页面: http://librarymanager/All#TFT_eSPI #include //#include "User_Setup.h" TFT_eSPI tft = TFT_eSPI(); // Invoke custom library // Maximum number of generations until the screen is refreshed #define MAX_GEN_COUNT 500 // The ESP8266 has plenty of memory so we can create a large array // 2 x 2 pixel cells, array size = 5120 bytes per array, runs fast #define GRIDX 80 #define GRIDY 64 #define CELLXY 2 // 1 x 1 pixel cells, array size = 20480 bytes per array //#define GRIDX 160 //#define GRIDY 128 //#define CELLXY 1 #define GEN_DELAY 10 // Set a delay between each generation to slow things down //Current grid and newgrid arrays are needed uint8_t grid[GRIDX][GRIDY]; //The new grid for the next generation uint8_t newgrid[GRIDX][GRIDY]; //Number of generations uint16_t genCount = 0; void setup() { //Set up the display tft.init(); tft.setRotation(3); tft.fillScreen(TFT_BLACK); tft.setTextSize(1); tft.setTextColor(TFT_WHITE); tft.setCursor(0, 0); } void loop() { //Display a simple splash screen tft.fillScreen(TFT_BLACK); tft.setTextSize(2); tft.setTextColor(TFT_WHITE); tft.setCursor(40, 5); tft.println(F("Arduino")); tft.setCursor(35, 25); tft.println(F("Cellular")); tft.setCursor(35, 45); tft.println(F("Automata")); delay(1000); tft.fillScreen(TFT_BLACK); initGrid(); genCount = MAX_GEN_COUNT; drawGrid(); //Compute generations for (int gen = 0; gen < genCount; gen++) { computeCA(); drawGrid(); delay(GEN_DELAY); for (int16_t x = 1; x < GRIDX-1; x++) { for (int16_t y = 1; y < GRIDY-1; y++) { grid[x][y] = newgrid[x][y]; } } } } //Draws the grid on the display void drawGrid(void) { uint16_t color = TFT_WHITE; for (int16_t x = 1; x < GRIDX - 1; x++) { for (int16_t y = 1; y < GRIDY - 1; y++) { if ((grid[x][y]) != (newgrid[x][y])) { if (newgrid[x][y] == 1) color = 0xFFFF; //random(0xFFFF); else color = 0; tft.fillRect(CELLXY * x, CELLXY * y, CELLXY, CELLXY, color); } } } } //Initialise Grid void initGrid(void) { for (int16_t x = 0; x < GRIDX; x++) { for (int16_t y = 0; y < GRIDY; y++) { newgrid[x][y] = 0; if (x == 0 \|\| x == GRIDX - 1 \|\| y == 0 \|\| y == GRIDY - 1) { grid[x][y] = 0; } else { if (random(3) == 1) grid[x][y] = 1; else grid[x][y] = 0; } } } } //Compute the CA. Basically everything related to CA starts here void computeCA() { for (int16_t x = 1; x < GRIDX; x++) { for (int16_t y = 1; y < GRIDY; y++) { int neighbors = getNumberOfNeighbors(x, y); if (grid[x][y] == 1 && (neighbors == 2 \|\| neighbors == 3 )) { newgrid[x][y] = 1; } else if (grid[x][y] == 1) newgrid[x][y] = 0; if (grid[x][y] == 0 && (neighbors == 3)) { newgrid[x][y] = 1; } else if (grid[x][y] == 0) newgrid[x][y] = 0; } } } // Check the Moore neighborhood int getNumberOfNeighbors(int x, int y) { return grid[x - 1][y] + grid[x - 1][y - 1] + grid[x][y - 1] + grid[x + 1][y - 1] + grid[x + 1][y] + grid[x + 1][y + 1] + grid[x][y + 1] + grid[x - 1][y + 1]; } 复制代码 0
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