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| 번호 | 제목 | 평점 | 작성자 | 작성일 |
|---|---|---|---|---|
| 1 | 2.8inch TFT Touch Shield Rev2.1 (ST7789). 동작확인법 | 5점 | 이*명 | 2020-11-04 23:45 |
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아무생각 없이 Waveshare 홈페이지에 있는 드라이버 File:2.8inch TFT Touch Shield code.7z 를 사용하면 정상동작이 안됩니다. (2020.11.4 기준) (Eleparts 로 문의해보니 최근에는 신 버전으로 출고된다고 합니다.) 제가 사용하고 있는 보드는 2.8inch TFT Touch Shield PCB 뒷판에 Rev2.1 로 되어 있고 ST7789 드라이버를 사용합니다. 저와 같은 보드를 사용하고 계시다면, 아래의 가이드로 동작확인이 가능합니다. 1. https://simple-circuit.com/arduino-st7789-ips-tft-display-example/ 의 아래 예제코드를 받아 아두이노 라이브러리 밑에 복사해줍니다. Adafruit ST7789 TFT library —-> direct link 2. Arduino/libraries/Adafruit-ST7735-Library-master/examples/graphicstest/graphicstest.ino 를 열어 아래의 내용을 덮어씁니다.( 주요내용은 st7789를 셋팅해준 것입니다.) /************************************************************************** This is a library for several Adafruit displays based on ST77* drivers. Works with the Adafruit 1.8" TFT Breakout w/SD card ----> http://www.adafruit.com/products/358 The 1.8" TFT shield ----> https://www.adafruit.com/product/802 The 1.44" TFT breakout ----> https://www.adafruit.com/product/2088 The 1.14" TFT breakout ----> https://www.adafruit.com/product/4383 The 1.3" TFT breakout ----> https://www.adafruit.com/product/4313 The 1.54" TFT breakout ----> https://www.adafruit.com/product/3787 The 2.0" TFT breakout ----> https://www.adafruit.com/product/4311 as well as Adafruit raw 1.8" TFT display ----> http://www.adafruit.com/products/618 Check out the links above for our tutorials and wiring diagrams. These displays use SPI to communicate, 4 or 5 pins are required to interface (RST is optional). Adafruit invests time and resources providing this open source code, please support Adafruit and open-source hardware by purchasing products from Adafruit! Written by Limor Fried/Ladyada for Adafruit Industries. MIT license, all text above must be included in any redistribution **************************************************************************/ #include <Adafruit_GFX.h> // Core graphics library #include <Adafruit_ST7735.h> // Hardware-specific library for ST7735 #include <Adafruit_ST7789.h> // Hardware-specific library for ST7789 #include <SPI.h> #if defined(ARDUINO_FEATHER_ESP32) // Feather Huzzah32 #define TFT_CS 14 #define TFT_RST 15 #define TFT_DC 32 #elif defined(ESP8266) #define TFT_CS 4 #define TFT_RST 16 #define TFT_DC 5 #else // For the breakout board, you can use any 2 or 3 pins. // These pins will also work for the 1.8" TFT shield. #define TFT_CS 10 #define TFT_RST -1 //not used// Or set to -1 and connect to Arduino RESET pin #define TFT_DC 7 #endif // OPTION 1 (recommended) is to use the HARDWARE SPI pins, which are unique // to each board and not reassignable. For Arduino Uno: MOSI = pin 11 and // SCLK = pin 13. This is the fastest mode of operation and is required if // using the breakout board's microSD card. // For 1.44" and 1.8" TFT with ST7735 use: // Adafruit_ST7735 tft = Adafruit_ST7735(TFT_CS, TFT_DC, TFT_RST); // For 1.14", 1.3", 1.54", and 2.0" TFT with ST7789: Adafruit_ST7789 tft = Adafruit_ST7789(TFT_CS, TFT_DC, TFT_RST); // OPTION 2 lets you interface the display using ANY TWO or THREE PINS, // tradeoff being that performance is not as fast as hardware SPI above. #define TFT_MOSI 11 // Data out #define TFT_SCLK 13 // Clock out // For ST7735-based displays, we will use this call //Adafruit_ST7735 tft = Adafruit_ST7735(TFT_CS, TFT_DC, TFT_MOSI, TFT_SCLK, TFT_RST); // OR for the ST7789-based displays, we will use this call //Adafruit_ST7789 tft = Adafruit_ST7789(TFT_CS, TFT_DC, TFT_MOSI, TFT_SCLK, TFT_RST); float p = 3.1415926; void setup(void) { Serial.begin(9600); Serial.print(F("Hello! ST77xx TFT Test")); //for LCD backlight pinMode(9, OUTPUT); digitalWrite(9, HIGH);
// Use this initializer if using a 1.8" TFT screen: //tft.initR(INITR_BLACKTAB); // Init ST7735S chip, black tab // OR use this initializer if using a 1.8" TFT screen with offset such as WaveShare: // tft.initR(INITR_GREENTAB); // Init ST7735S chip, green tab // OR use this initializer (uncomment) if using a 1.44" TFT: //tft.initR(INITR_144GREENTAB); // Init ST7735R chip, green tab // OR use this initializer (uncomment) if using a 0.96" 160x80 TFT: //tft.initR(INITR_MINI160x80); // Init ST7735S mini display // OR use this initializer (uncomment) if using a 1.3" or 1.54" 240x240 TFT: //tft.init(240, 240); // Init ST7789 240x240 // OR use this initializer (uncomment) if using a 2.0" 320x240 TFT: tft.init(240, 320); // Init ST7789 320x240 // OR use this initializer (uncomment) if using a 1.14" 240x135 TFT: //tft.init(135, 240); // Init ST7789 240x135
// SPI speed defaults to SPI_DEFAULT_FREQ defined in the library, you can override it here // Note that speed allowable depends on chip and quality of wiring, if you go too fast, you // may end up with a black screen some times, or all the time. //tft.setSPISpeed(40000000); Serial.println(F("Initialized")); uint16_t time = millis(); tft.fillScreen(ST77XX_BLACK); time = millis() - time; Serial.println(time, DEC); delay(500); // large block of text tft.fillScreen(ST77XX_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. ", ST77XX_WHITE); delay(1000); // tft print function! tftPrintTest(); delay(4000); // a single pixel tft.drawPixel(tft.width()/2, tft.height()/2, ST77XX_GREEN); delay(500); // line draw test testlines(ST77XX_YELLOW); delay(500); // optimized lines testfastlines(ST77XX_RED, ST77XX_BLUE); delay(500); testdrawrects(ST77XX_GREEN); delay(500); testfillrects(ST77XX_YELLOW, ST77XX_MAGENTA); delay(500); tft.fillScreen(ST77XX_BLACK); testfillcircles(10, ST77XX_BLUE); testdrawcircles(10, ST77XX_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(ST77XX_BLACK); for (int16_t x=0; x < tft.width(); x+=6) { tft.drawLine(0, 0, x, tft.height()-1, color); delay(0); } for (int16_t y=0; y < tft.height(); y+=6) { tft.drawLine(0, 0, tft.width()-1, y, color); delay(0); } tft.fillScreen(ST77XX_BLACK); for (int16_t x=0; x < tft.width(); x+=6) { tft.drawLine(tft.width()-1, 0, x, tft.height()-1, color); delay(0); } for (int16_t y=0; y < tft.height(); y+=6) { tft.drawLine(tft.width()-1, 0, 0, y, color); delay(0); } tft.fillScreen(ST77XX_BLACK); for (int16_t x=0; x < tft.width(); x+=6) { tft.drawLine(0, tft.height()-1, x, 0, color); delay(0); } for (int16_t y=0; y < tft.height(); y+=6) { tft.drawLine(0, tft.height()-1, tft.width()-1, y, color); delay(0); } tft.fillScreen(ST77XX_BLACK); for (int16_t x=0; x < tft.width(); x+=6) { tft.drawLine(tft.width()-1, tft.height()-1, x, 0, color); delay(0); } for (int16_t y=0; y < tft.height(); y+=6) { tft.drawLine(tft.width()-1, tft.height()-1, 0, y, color); delay(0); } } 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(ST77XX_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(ST77XX_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(ST77XX_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(ST77XX_BLACK); uint16_t 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 <= 15; t++) { tft.drawTriangle(w, y, y, x, z, x, color); x-=4; y+=4; z-=4; color+=100; } } void testroundrects() { tft.fillScreen(ST77XX_BLACK); uint16_t color = 100; int i; int t; for(t = 0 ; t <= 4; t+=1) { int x = 0; int y = 0; int w = tft.width()-2; int h = tft.height()-2; for(i = 0 ; i <= 16; i+=1) { tft.drawRoundRect(x, y, w, h, 5, color); x+=2; y+=3; w-=4; h-=6; color+=1100; } color+=100; } } void tftPrintTest() { tft.setTextWrap(false); tft.fillScreen(ST77XX_BLACK); tft.setCursor(0, 30); tft.setTextColor(ST77XX_RED); tft.setTextSize(1); tft.println("Hello World!"); tft.setTextColor(ST77XX_YELLOW); tft.setTextSize(2); tft.println("Hello World!"); tft.setTextColor(ST77XX_GREEN); tft.setTextSize(3); tft.println("Hello World!"); tft.setTextColor(ST77XX_BLUE); tft.setTextSize(4); tft.print(1234.567); delay(1500); tft.setCursor(0, 0); tft.fillScreen(ST77XX_BLACK); tft.setTextColor(ST77XX_WHITE); tft.setTextSize(0); tft.println("Hello World!"); tft.setTextSize(1); tft.setTextColor(ST77XX_GREEN); tft.print(p, 6); tft.println(" Want pi?"); tft.println(" "); tft.print(8675309, HEX); // print 8,675,309 out in HEX! tft.println(" Print HEX!"); tft.println(" "); tft.setTextColor(ST77XX_WHITE); tft.println("Sketch has been"); tft.println("running for: "); tft.setTextColor(ST77XX_MAGENTA); tft.print(millis() / 1000); tft.setTextColor(ST77XX_WHITE); tft.print(" seconds."); } void mediabuttons() { // play tft.fillScreen(ST77XX_BLACK); tft.fillRoundRect(25, 10, 78, 60, 8, ST77XX_WHITE); tft.fillTriangle(42, 20, 42, 60, 90, 40, ST77XX_RED); delay(500); // pause tft.fillRoundRect(25, 90, 78, 60, 8, ST77XX_WHITE); tft.fillRoundRect(39, 98, 20, 45, 5, ST77XX_GREEN); tft.fillRoundRect(69, 98, 20, 45, 5, ST77XX_GREEN); delay(500); // play color tft.fillTriangle(42, 20, 42, 60, 90, 40, ST77XX_BLUE); delay(50); // pause color tft.fillRoundRect(39, 98, 20, 45, 5, ST77XX_RED); tft.fillRoundRect(69, 98, 20, 45, 5, ST77XX_RED); // play color tft.fillTriangle(42, 20, 42, 60, 90, 40, ST77XX_GREEN); }
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