【毕业设计】单片机红外热成像仪 - 嵌入式 stm32 树莓派

    #include "Adafruit_Arcada.h"
    Adafruit_MLX90640 mlx;
    Adafruit_Arcada arcada;
    #if !defined(USE_TINYUSB)
      #warning "Compile with TinyUSB selected!"
    #endif
    File myFile;
    float mlx90640To[768];   // Here we receive the float vals acquired from MLX90640
    #define DE_BOUNCE 200
      // Wait this many msec between button clicks
    #define MENU_LEN 12
      // Number of total available menu choices
    #define MENU_ROWS 9
      // Number of menu lines that can fit on screen
    #define MENU_VPOS 6
    #define GRAY_33 0x528A
    #define BOTTOM_DIR "MLX90640"
    #define DIR_FORMAT "/dird"
    #define BMP_FORMAT "/frmd.bmp"
    #define CFG_FLNAME "/config.ini"
    #define MAX_SERIAL 999
    // BMP File Header, little end first, Photoshop ver.
    const PROGMEM uint8_t BmpPSPHead[14] = {
     0x42, 0x4D,             // "BM" in hex
     0x38, 0x09, 0x00, 0x00, // File size, 2360
     0x00, 0x00,             // reserved for app data 1
     0x00, 0x00,             // reserved for app data 2
     0x36, 0x00, 0x00, 0x00  // Offset of first pixel, 54
    };
    // BMP 24-bit DIB Header, little end first, Photoshop ver.
    const PROGMEM uint8_t DIBHeadPSP1[40] = {
     0x28, 0x00, 0x00, 0x00,  // Header size, 40
     0x20, 0x00, 0x00, 0x00,  // pixel width, 32
     0x18, 0x00, 0x00, 0x00,  // pixel height, 24
     0x01, 0x00,              // color planes, 1
     0x18, 0x00,              // bits per pixel, 24
     0x00, 0x00, 0x00, 0x00,  // Compression method, 0==none
     0x00, 0x00, 0x00, 0x00,  // Raw bitmap data size, dummy 0
     0x12, 0x0B, 0x00, 0x00,  // Pixels per meter H, 2834
     0x12, 0x0B, 0x00, 0x00,  // Pixels per meter V, 2834
     0x00, 0x00, 0x00, 0x00,  // Colors in palette, 0==default 2^n
     0x00, 0x00, 0x00, 0x00   // Number of important colors, 0
    };
    // BMP file data, 2 byte padding
    const PROGMEM uint8_t PSPpad[2] = {0x00, 0x00};
    //Byte arrays of bitmapped icons, 16 x 12 px:
    const PROGMEM uint8_t battIcon[] = {
    0x0f, 0x00, 0x3f, 0xc0, 0x20, 0x40, 0x20, 0x40, 0x20, 0x40, 0x20, 0x40, 
    0x20, 0x40, 0x20, 0x40, 0x20, 0x40, 0x20, 0x40, 0x20, 0x40, 0x3f, 0xc0};
    const PROGMEM uint8_t camIcon[] = {
    0x01, 0xe0, 0x61, 0x20, 0xff, 0xf0, 0x80, 0x10, 0x86, 0x10, 0x89, 0x10, 
    0x90, 0x90, 0x90, 0x90, 0x89, 0x10, 0x86, 0x10, 0x80, 0x10, 0xff, 0xf0};
    const PROGMEM uint8_t SDicon[] = {
    0x0f, 0xe0, 0x1f, 0xe0, 0x3c, 0x60, 0x78, 0x60, 0x70, 0x60, 0x60, 0x60, 
    0x60, 0x60, 0x60, 0x60, 0x6f, 0x60, 0x60, 0x60, 0x7f, 0xe0, 0x7f, 0xe0};
    const PROGMEM uint8_t snowIcon[] = {
    0x15, 0x00, 0x4E, 0x40, 0xC4, 0x60, 0x75, 0xC0, 0x9F, 0x20, 0x0E, 0x00,
    0x0E, 0x00, 0x9F, 0x20, 0x75, 0xC0, 0xC4, 0x60, 0x4E, 0x40, 0x15, 0x00};
    uint8_t pixelArray[2304];   // BMP image body, 32 pixels * 24 rows * 3 bytes
    // Some global values that several functions will use, including
    // 5 floats to append to the BMP pixel data:
    // coldest pixel, coldest color, center temp, hottest color, hottest pixel
    float sneakFloats[5] = {3.1415926, 0.0, -11.7, 98.6, -12.34};      // Test values that get overwritten
    uint16_t highAddr = 0, lowAddr = 0;                                // Append the pixel addresses, too
    uint16_t backColor, lowPixel, highPixel, buttonRfunc = 1,
             emissivity = 95, frameRate = 4,
             thermRange = 0, paletteNum = 1, colorPal[256],            // Array for color palettes
             nextDirIndex = 0, nextBMPindex = 0, nextBMPsequence = 1;  // These keep count of SD files and dirs, 0==error
    uint32_t deBounce = 0, buttonBits = 0;
    boolean mirrorFlag = false, celsiusFlag = false, markersOn = true,
            screenDim = false, smoothing = false, showLastCap = false,
            save1frame = false, recordingInProg = false, buttonActive = false;
    float battAverage = 0.0, colorLow = 0.0, colorHigh = 100.0;        // Values for managing color range
    volatile boolean clickFlagMenu = false, clickFlagSelect = false;   // Volatiles for timer callback handling
    setup（）函数首先执行，每次启动仅执行一次。 它的工作是初始化系统，从Arcada代码及其将控制的板载硬件开始，例如屏幕和按钮等。
    然后一组测试确定闪存是否准备好接收新的BMP文件。
    void setup()
    {
      if (!arcada.arcadaBegin()) {    // Start TFT and fill with black
        // Serial.print("Failed to begin");
        while (1);
      }
      arcada.filesysBeginMSD();       // Set up SD or QSPI flash as an external USB drive
      arcada.displayBegin();              // Activate TFT screen
      arcada.display->setRotation(1);     // wide orientation
      arcada.display->setTextWrap(false);
      arcada.setBacklight(255);           // Turn on backlight
      battAverage = arcada.readBatterySensor();
      Serial.begin(115200);
    //  while(!Serial); // Wait for user to open terminal
      Serial.println("MLX90640 IR Array Example");
      if(arcada.filesysBegin()){              // Initialize flash storage, begin setting up indices for saving BMPs
        if(!arcada.exists(BOTTOM_DIR)) {      // Is base "MLX90640" directory absent?
          if(arcada.mkdir(BOTTOM_DIR))        // Can it be added?
            nextDirIndex = nextBMPindex = 1;  // Success, prepare to store numbered files & dirs
        } else {      // "MLX90640" directory exists, can we add files | directories?
          // Get the number of the next unused serial directory path
          nextDirIndex = availableFileNumber(1, BOTTOM_DIR + String(DIR_FORMAT));
          // and the next unused serial BMP name
          nextBMPindex = availableFileNumber(1, BOTTOM_DIR + String(BMP_FORMAT));
        }
      }  // By now each global index variable is either 0 (no nums available), or the next unclaimed serial num