1. #include <Arduino.h>
    2. #include <SPI.h>
    3. #include <MCUFRIEND_kbv.h>
    4. #include <Adafruit_GFX.h>    // Core graphics library
    5. #include <Adafruit_I2CDevice.h> 
    6. #include <FS.h> 
    7. #include <SPIFFS.h> 
    9. // Assign human-readable names to some common 16-bit color values:
    10. #define    BLACK   0x0000
    11. #define    BLUE    0x001F
    12. #define    RED     0xF800
    13. #define    GREEN   0x07E0
    14. #define CYAN    0x07FF
    15. #define MAGENTA 0xF81F
    16. #define YELLOW  0xFFE0
    17. #define WHITE   0xFFFF
    19. MCUFRIEND_kbv tft;
    21. uint16_t ox=0, oy=0;
    22. int ave=0, avec=0, avet=0;
    23. ////////////////////////////////////////////////////////////////
    24. void aveg(void)
    25. {
    26.   int z=0;
    27.   Serial.println(ave);
    28.   Serial.println(avec);
    29.   avet=ave/avec;
    30.   Serial.println(avet);
    31.   avet=avet*32;
    32.   for (int i=0; i<24; i++){
    33.   for (uint16_t a=0; a<3; a++)
    34.   {
    35.   tft.drawLine(avet+a, z, avet+a, z+10, 0xFB21);
    36.   } // thick
    37.   for (uint16_t a=0; a<2; a++)
    38.   { 
    39.   tft.drawLine(avet-a, z, avet-a, z+10, 0xFB21);} delay(100); z=z+20; 
    40.   } 
    41. }
    42.  void dchart_10x10(uint16_t nx,uint16_t ny) 
    43.  { 
    44.    ave+=nx; 
    45.    avec++; 
    46.    nx=nx*32; 
    47.    ny=ny*48; 
    48.    tft.drawCircle(nx, ny, 10, 0x0517); 
    49.    tft.drawCircle(nx, ny, 9, 0x0517); 
    50.    tft.fillCircle(nx, ny, 7, 0x0517); 
    51.    delay (100); 
    52.    ox=nx; 
    53.    oy=ny; 
    54. } 
    55.  void dotchart_10x10(uint16_t nx,uint16_t ny) 
    56.  { 
    57.    ave+=nx; 
    58.   avec++; 
    59.   nx=nx*32; 
    60.   ny=ny*48; 
    61.   int plus=0; 
    62.   float fplus=0; 
    63.   int sign=0; 
    64.   int y=0,x=0; 
    65.   y=oy; 
    66.   x=ox; 
    67.   float xmines, ymines; xmines=nx-ox; 
    68.   ymines=ny-oy; 
    69.   if (ox > nx)
    70.   {
    71.     xmines=ox-nx;
    72.     sign=1;
    73.   }
    74.   else
    75.     sign=0;
    76.   for (int a=0; a<(ny-oy); a++)
    77.   {
    78.     fplus+=xmines/ymines;
    79.     plus=fplus;
    80.     if (sign==1)
    81.     tft.drawFastHLine(0, y, x-plus, 0xBFDF);
    82.     else
    83.     tft.drawFastHLine(0, y, x+plus, 0xBFDF);
    84.     y++;
    85.     delay(5);
    86.   }
    87.   for (uint16_t a=0; a<2; a++){
    88.   tft.drawLine(ox+a, oy, nx+a, ny, 0x01E8);} // thick
    89.   for (uint16_t a=0; a<2; a++){
    90.   tft.drawLine(ox, oy+a, nx, ny+a, 0x01E8);}
    91.   ox=nx;
    92.   oy=ny;
    93. }
    94. ////////////////////////////////////////////////////////////////////
    95. void setup(void) {
    96.   Serial.begin(115200);
    97.   Serial.println(F("TFT LCD test"));
    98.   tft.reset();
    99.   uint16_t identifier = tft.readID();
    100.   if(identifier == 0x9325) {
    101.     Serial.println(F("Found ILI9325 LCD driver"));
    102.   } else if(identifier == 0x9328) {
    103.     Serial.println(F("Found ILI9328 LCD driver"));
    104.   } else if(identifier == 0x4535) {
    105.     Serial.println(F("Found LGDP4535 LCD driver"));
    106.   }else if(identifier == 0x7575) {
    107.     Serial.println(F("Found HX8347G LCD driver"));
    108.   } else if(identifier == 0x9595) {
    109.     Serial.println(F("Found HX8347-I LCD driver"));
    110.   } else if(identifier == 0x4747) {
    111.     Serial.println(F("Found HX8347-D LCD driver"));
    112.   } else if(identifier == 0x8347) {
    113.     Serial.println(F("Found HX8347-A LCD driver"));
    114.   }else if(identifier == 0x9341) {
    115.     Serial.println(F("Found ILI9341 LCD driver"));
    116.   }else if(identifier == 0x7783) {
    117.     Serial.println(F("Found ST7781 LCD driver"));
    118.   }else if(identifier == 0x8230) {
    119.     Serial.println(F("Found UC8230 LCD driver"));  
    120.   }else if(identifier == 0x8357) {
    121.     Serial.println(F("Found HX8357D LCD driver"));
    122.   } else if(identifier==0x0101){     
    123.       identifier=0x9341;
    124.       Serial.println(F("Found 0x9341 LCD driver"));
    125.   }else if(identifier==0x7793){     
    126.        Serial.println(F("Found ST7793 LCD driver"));
    127.   }else if(identifier==0xB509){     
    128.        Serial.println(F("Found R61509 LCD driver"));
    129.   }else if(identifier==0x9486){     
    130.        Serial.println(F("Found ILI9486 LCD driver"));
    131.   }else if(identifier==0x9488){     
    132.        Serial.println(F("Found ILI9488 LCD driver"));
    133.   }else 
    134.   {
    135.     Serial.print(F("Unknown LCD driver chip: "));
    136.     Serial.println(identifier, HEX);
    137.     Serial.println(F("If using the Adafruit 2.8\" TFT Arduino shield, the line:"));
    138.     Serial.println(F("  #define USE_ADAFRUIT_SHIELD_PINOUT"));
    139.     Serial.println(F("should appear in the library header (Adafruit_TFT.h)."));
    140.     Serial.println(F("If using the breakout board, it should NOT be #defined!"));
    141.     Serial.println(F("Also if using the breakout, double-check that all wiring"));
    142.     Serial.println(F("matches the tutorial."));
    143.     identifier=0x9486; 
    144.   }
    145.   tft.begin(identifier); 
    146.   tft.fillScreen(BLACK);
    147.   unsigned long start = micros();
    148.   tft.setCursor(0, 0);
    149.   tft.setTextColor(RED);  tft.setTextSize(1);
    150.   tft.println("Hello World!");
    151.   tft.println(01234.56789);
    152.   tft.println(0xDEADBEEF, HEX);
    153.   tft.println();
    154.   tft.println();
    155.   tft.setTextColor(GREEN); tft.setTextSize(2);
    156.   tft.println("Hello World!");
    157.   tft.println(01234.56789);
    158.   tft.println(0xDEADBEEF, HEX);
    159.   tft.println();
    160.   tft.println();
    161.   tft.setTextColor(BLUE);    tft.setTextSize(3);
    162.   tft.println("Hello World!");
    163.   tft.println(01234.56789);
    164.   tft.println(0xDEADBEEF, HEX);
    165.   tft.setTextColor(WHITE);    tft.setTextSize(4);
    166.   tft.println("Hello!");
    167.   tft.setTextColor(YELLOW);    tft.setTextSize(5);
    168.   tft.println("Hello!");
    169.   tft.setTextColor(RED);    tft.setTextSize(6);
    170.   tft.println("Hello!");
    171.   tft.println();
    172.   tft.println();
    173.   delay(1000);
    174. }
    176. void loop(void) {
    177.   tft.invertDisplay(true);
    178.   tft.fillScreen(0xffff);
    179.   dotchart_10x10(3, 0);
    180.   dotchart_10x10(2, 1);
    181.   dotchart_10x10(4, 2);
    182.   dotchart_10x10(4, 3);
    183.   dotchart_10x10(5, 4);
    184.   dotchart_10x10(3, 5);
    185.   dotchart_10x10(6, 6);
    186.   dotchart_10x10(7, 7);
    187.   dotchart_10x10(9, 8);
    188.   dotchart_10x10(8, 9);
    189.   dotchart_10x10(10, 10);
    190.   dchart_10x10(3, 0);
    191.   dchart_10x10(2, 1);
    192.   dchart_10x10(4, 2);
    193.   dchart_10x10(4, 3);
    194.   dchart_10x10(5, 4);
    195.   dchart_10x10(3, 5);
    196.   dchart_10x10(6, 6);
    197.   dchart_10x10(7, 7);
    198.   dchart_10x10(9, 8);
    199.   dchart_10x10(8, 9);
    200.   dchart_10x10(10, 10);
    201.   tft.setRotation(1);
    202.   tft.setTextSize(2);
    203.   tft.setTextColor(0x01E8);
    204.   tft.setCursor(20, 20);
    205.   tft.print("Average");
    206.   int dl=20;
    207.   for (int i=0;i < 6;i++)
    208.   {
    209.     for (uint16_t a=0; a < 3; a++){
    210.     tft.drawLine(dl, 40+a, dl+10, 40+a, 0xFB21);}
    211.     dl+=16;
    212.   }
    213.   tft.setRotation(0);
    214.   aveg();
    215.   while(1);
    216. }