Arduino UNO驱动液晶屏TFT_LCD_ST7789v

分辨率240x240_240x320

arduino UNO pin8------------LCD DC

#define TFT_DC    8 //LCD DC #define TFT_RST   9  //LCD RES #define TFT_CS    10 //LCD CS-- only for displays with CS pin #define TFT_MOSI  11   //LCD SDA-- for hardware SPI data pin (all of available pins) #define TFT_SCLK  13   //LCD  CLK-- for hardware SPI sclk pin (all of available pins) //LCD BLK --接高电平 //LCD VCC --5V //LCD GND --GND

/***************************************************
  This is a library for the ST7789 IPS SPI display.

  Originally written by Limor Fried/Ladyada for 
  Adafruit Industries.

  Modified by Kamran Gasimov, Ananev Ilia
 ****************************************************/

//#include     // Core graphics library by Adafruit
#include  // Hardware-specific library for ST7789 (with or without CS pin)
#include 

#define TFT_DC    8 //DC
#define TFT_RST   9  //RES
#define TFT_CS    10 // CS-- only for displays with CS pin
#define TFT_MOSI  11   //SDA-- for hardware SPI data pin (all of available pins)
#define TFT_SCLK  13   //CLK-- for hardware SPI sclk pin (all of available pins)
//BLK --接高电平
//VCC --5V
//GND --GND

//You can use different type of hardware initialization
//using hardware SPI (11, 13 on UNO; 51, 52 on MEGA; ICSP-4, ICSP-3 on DUE and etc)
//ST7789v_arduino tft = ST7789v_arduino(TFT_DC, TFT_RST); //for display without CS pin
ST7789v_arduino tft = ST7789v_arduino(TFT_DC, TFT_RST, TFT_CS); //for display with CS pin
//or you can use software SPI on all available pins (slow)
//ST7789v_arduino tft = ST7789v_arduino(TFT_DC, TFT_RST, TFT_MOSI, TFT_SCLK); //for display without CS pin
//ST7789v_arduino tft = ST7789v_arduino(TFT_DC, TFT_RST, TFT_MOSI, TFT_SCLK, TFT_CS); //for display with CS pin
//ST7789v_arduino tft = ST7789v_arduino(-1, TFT_RST, TFT_MOSI, TFT_SCLK, TFT_CS); //for display with CS pin and DC via 9bit SPI


float p = 3.1415926;

void setup(void) {
  Serial.begin(9600);
  Serial.print("Hello! ST7789 TFT Test");

  tft.init(240, 320);   // initialize a ST7789 chip, 240x240 pixels

  Serial.println("Initialized");

  uint16_t time = millis();
  tft.fillScreen(BLACK);
  time = millis() - time;

  Serial.println(time, DEC);
  delay(500);

  // large block of text
  tft.fillScreen(BLACK);
  testdrawtext("Lorem ipsum dolor sit amet, consectetur adipiscing elit. Curabitur adipiscing ante sed nibh tincidunt feugiat. Maecenas enim massa, fringilla sed malesuada et, malesuada sit amet turpis. Sed porttitor neque ut ante pretium vitae malesuada nunc bibendum. Nullam aliquet ultrices massa eu hendrerit. Ut sed nisi lorem. In vestibulum purus a tortor imperdiet posuere. ", WHITE);
  delay(1000);

  // tft print function
  tftPrintTest();
  delay(4000);

  // a single pixel
  tft.drawPixel(tft.width()/2, tft.height()/2, GREEN);
  delay(500);

  // line draw test
  testlines(YELLOW);
  delay(500);

  // optimized lines
  testfastlines(RED, BLUE);
  delay(500);

  testdrawrects(GREEN);
  delay(500);

  testfillrects(YELLOW, MAGENTA);
  delay(500);

  tft.fillScreen(BLACK);
  testfillcircles(10, BLUE);
  testdrawcircles(10, WHITE);
  delay(500);

  testroundrects();
  delay(500);

  testtriangles();
  delay(500);

  mediabuttons();
  delay(500);

  Serial.println("done");
  delay(1000);
}

void loop() {
 // tft.invertDisplay(true);
 // delay(500);
 // tft.invertDisplay(false);
 // delay(500);
}

void testlines(uint16_t color) {
  tft.fillScreen(BLACK);
  for (int16_t x=0; x < tft.width(); x+=6) {
    tft.drawLine(0, 0, x, tft.height()-1, color);
  }
  for (int16_t y=0; y < tft.height(); y+=6) {
    tft.drawLine(0, 0, tft.width()-1, y, color);
  }

  tft.fillScreen(BLACK);
  for (int16_t x=0; x < tft.width(); x+=6) {
    tft.drawLine(tft.width()-1, 0, x, tft.height()-1, color);
  }
  for (int16_t y=0; y < tft.height(); y+=6) {
    tft.drawLine(tft.width()-1, 0, 0, y, color);
  }

  tft.fillScreen(BLACK);
  for (int16_t x=0; x < tft.width(); x+=6) {
    tft.drawLine(0, tft.height()-1, x, 0, color);
  }
  for (int16_t y=0; y < tft.height(); y+=6) {
    tft.drawLine(0, tft.height()-1, tft.width()-1, y, color);
  }

  tft.fillScreen(BLACK);
  for (int16_t x=0; x < tft.width(); x+=6) {
    tft.drawLine(tft.width()-1, tft.height()-1, x, 0, color);
  }
  for (int16_t y=0; y < tft.height(); y+=6) {
    tft.drawLine(tft.width()-1, tft.height()-1, 0, y, color);
  }
}

void testdrawtext(char *text, uint16_t color) {
  tft.setCursor(0, 0);
  tft.setTextColor(color);
  tft.setTextWrap(true);
  tft.print(text);
}

void testfastlines(uint16_t color1, uint16_t color2) {
  tft.fillScreen(BLACK);
  for (int16_t y=0; y < tft.height(); y+=5) {
    tft.drawFastHLine(0, y, tft.width(), color1);
  }
  for (int16_t x=0; x < tft.width(); x+=5) {
    tft.drawFastVLine(x, 0, tft.height(), color2);
  }
}

void testdrawrects(uint16_t color) {
  tft.fillScreen(BLACK);
  for (int16_t x=0; x < tft.width(); x+=6) {
    tft.drawRect(tft.width()/2 -x/2, tft.height()/2 -x/2 , x, x, color);
  }
}

void testfillrects(uint16_t color1, uint16_t color2) {
  tft.fillScreen(BLACK);
  for (int16_t x=tft.width()-1; x > 6; x-=6) {
    tft.fillRect(tft.width()/2 -x/2, tft.height()/2 -x/2 , x, x, color1);
    tft.drawRect(tft.width()/2 -x/2, tft.height()/2 -x/2 , x, x, color2);
  }
}

void testfillcircles(uint8_t radius, uint16_t color) {
  for (int16_t x=radius; x < tft.width(); x+=radius*2) {
    for (int16_t y=radius; y < tft.height(); y+=radius*2) {
      tft.fillCircle(x, y, radius, color);
    }
  }
}

void testdrawcircles(uint8_t radius, uint16_t color) {
  for (int16_t x=0; x < tft.width()+radius; x+=radius*2) {
    for (int16_t y=0; y < tft.height()+radius; y+=radius*2) {
      tft.drawCircle(x, y, radius, color);
    }
  }
}

void testtriangles() {
  tft.fillScreen(BLACK);
  int color = 0xF800;
  int t;
  int w = tft.width()/2;
  int x = tft.height()-1;
  int y = 0;
  int z = tft.width();
  for(t = 0 ; t