Mở đầu
- Xin chào các bạn! chắc hẳn các bạn cũng đã từng nghịch ngợm, vọc vạch các loại LCD như LCD1602, LCD2004,….
- hôm nay mình xin giới thiệu đến các bạn loại LCD TFT cụ thể là con LCD TFT 2.0 inch sử dụng chip ILI9225.
Chuẩn bị
Phần cứng | |
---|---|
Arduino Uno | x1 |
LCD TFT 2.0 inch SPI | x1 |
Dây cắm board test đực cái | x7 |
Phần mềm | |
Arduino IDE | |
Thư viện | |
TFT_22_ILI9225 |
Màn hình LCD TFT 2.0 inch
Thông số kĩ thuật
IC điều khiển | : ILI9225 |
Chuẩn giao tiếp | : SPI |
Kích thước | : 2.0 inch |
Độ phân giải | : 176×220 pixel |
Điện áp cung cấp | : 3.3-5 VDC |
Cảm ứng | : Không hỗ trợ |
- Hỗ trợ gắn trực tiếp lên Arduino MCU mà không cần bất kì kết nối nào.
- Tích hợp IC ổn áp, hỗ trợ điện áp cấp 3.3V hoặc 5V.
- Tương thích với mức IO 3.3V/5V, hỗ trợ các kết nối I/O MCU.
- Tích hợp mạch điều khiển đèn nền, có thể điều khiển bật/tắt hoặc làm mờ dùng PWM.
- Tích hợp mạch mở rộng thẻ SD.
- Dễ dàng mở rộng ứng dụng với Preserve SPI FLASH word circuit.
Đấu nối LCD TFT 2.0 inch với Arduino Uno
LCD TFT SPI 2.0 Inch | Arduino Uno R3 |
VCC | 3V |
GND | GND |
RST | 8 |
RS | 9 |
CS | 10 |
SDA | 11 |
CLK | 13 |
Code
Lưu ý: Code dưới đây phù hợp với thư viện phiên bản 1.41
#include "SPI.h" #include "TFT_22_ILI9225.h" #ifdef ARDUINO_ARCH_STM32F1 #define TFT_RST PA1 #define TFT_RS PA2 #define TFT_CS PA0 // SS #define TFT_SDI PA7 // MOSI #define TFT_CLK PA5 // SCK #define TFT_LED 0 // 0 if wired to +5V directly #else #define TFT_RST 8 #define TFT_RS 9 #define TFT_CS 10 // SS #define TFT_SDI 11 // MOSI #define TFT_CLK 13 // SCK #define TFT_LED 3 // 0 if wired to +5V directly #endif #define TFT_BRIGHTNESS 200 // Initial brightness of TFT backlight (optional) // Use hardware SPI (faster - on Uno: 13-SCK, 12-MISO, 11-MOSI) TFT_22_ILI9225 tft = TFT_22_ILI9225(TFT_RST, TFT_RS, TFT_CS, TFT_LED, TFT_BRIGHTNESS); // Use software SPI (slower) //TFT_22_ILI9225 tft = TFT_22_ILI9225(TFT_RST, TFT_RS, TFT_CS, TFT_SDI, TFT_CLK, TFT_LED, TFT_BRIGHTNESS); // Variables and constants uint16_t x, y; boolean flag = false; /* * Tux black/white image in 180x220 converted using Ardafruit bitmap converter * https://github.com/ehubin/Adafruit-GFX-Library/tree/master/Img2Code */ static const uint8_t PROGMEM tux[] = { 0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xf0, 0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xf0, 0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xf0, 0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xf0, 0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xf0, 0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xf0, 0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xf0, 0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xf0, 0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xf0, 0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xf0, 0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xf0, 0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xf0, 0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xfe,0x0,0xf,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xf0, 0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xc0,0x0,0x0,0x7f,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xf0, 0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xfe,0x0,0x0,0x0,0x1f,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xf0, 0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xf8,0x0,0x0,0x0,0x7,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xf0, 0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xe0,0x0,0x0,0x0,0x1,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xf0, 0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xc0,0x0,0x0,0x0,0x0,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xf0, 0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0x80,0x0,0x0,0x0,0x0,0x7f,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xf0, 0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0x0,0x0,0x0,0x0,0x0,0x3f,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xf0, 0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xfe,0x0,0x0,0x0,0x0,0x0,0x1f,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xf0, 0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xfc,0x0,0x0,0x0,0x0,0x0,0xf,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xf0, 0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xf8,0x0,0x0,0x0,0x0,0x0,0x7,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xf0, 0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xf0,0x0,0x0,0x0,0x0,0x0,0x7,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xf0, 0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xf0,0x0,0x0,0x0,0x0,0x0,0x3,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xf0, 0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xe0,0x0,0x0,0x0,0x0,0x0,0x1,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xf0, 0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xc0,0x0,0x0,0x0,0x0,0x0,0x1,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xf0, 0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xc0,0x0,0x0,0x0,0x0,0x0,0x0,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xf0, 0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xc0,0x0,0x0,0x0,0x0,0x0,0x0,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xf0, 0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0x80,0x0,0x0,0x0,0x0,0x0,0x0,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xf0, 0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0x80,0x0,0x0,0x0,0x0,0x0,0x0,0x7f,0xff,0xff,0xff,0xff,0xff,0xff,0xf0, 0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0x80,0x0,0x0,0x0,0x0,0x0,0x0,0x7f,0xff,0xff,0xff,0xff,0xff,0xff,0xf0, 0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x7f,0xff,0xff,0xff,0xff,0xff,0xff,0xf0, 0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x3f,0xff,0xff,0xff,0xff,0xff,0xff,0xf0, 0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x3f,0xff,0xff,0xff,0xff,0xff,0xff,0xf0, 0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x3f,0xff,0xff,0xff,0xff,0xff,0xff,0xf0, 0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x3f,0xff,0xff,0xff,0xff,0xff,0xff,0xf0, 0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xfe,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x3f,0xff,0xff,0xff,0xff,0xff,0xff,0xf0, 0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xfe,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x1f,0xff,0xff,0xff,0xff,0xff,0xff,0xf0, 0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xfe,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x1f,0xff,0xff,0xff,0xff,0xff,0xff,0xf0, 0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xfe,0x0,0x0,0x0,0x1,0xfc,0x0,0x0,0x1f,0xff,0xff,0xff,0xff,0xff,0xff,0xf0, 0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xfe,0x0,0x0,0x0,0x7,0xfe,0x0,0x0,0x1f,0xff,0xff,0xff,0xff,0xff,0xff,0xf0, 0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xfe,0x1,0xf8,0x0,0xf,0xff,0x0,0x0,0x1f,0xff,0xff,0xff,0xff,0xff,0xff,0xf0, 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0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xf0, 0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xf0, 0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xf0, 0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xf0, 0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xf0, 0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xf0, 0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xf0 }; // Setup void setup() { tft.begin(); Serial.begin(9600); } // Loop void loop() { tft.drawRectangle(0, 0, tft.maxX() - 1, tft.maxY() - 1, COLOR_WHITE); tft.setFont(Terminal6x8); tft.drawText(10, 10, "hello!"); delay(1000); tft.clear(); tft.drawText(10, 20, "clear"); delay(1000); tft.drawText(10, 30, "text small"); tft.setBackgroundColor(COLOR_YELLOW); tft.setFont(Terminal12x16); tft.drawText(90, 30, "BIG", COLOR_RED); tft.setBackgroundColor(COLOR_BLACK); tft.setFont(Terminal6x8); delay(1000); tft.drawText(10, 40, "setBacklight off"); delay(500); tft.setBacklight(LOW); delay(500); tft.setBacklight(HIGH); tft.drawText(10, 50, "setBacklight on"); delay(1000); tft.drawRectangle(10, 10, 110, 110, COLOR_BLUE); tft.drawText(10, 60, "rectangle"); delay(1000); tft.fillRectangle(20, 20, 120, 120, COLOR_RED); tft.drawText(10, 70, "solidRectangle"); delay(1000); tft.drawCircle(80, 80, 50, COLOR_YELLOW); tft.drawText(10, 80, "circle"); delay(1000); tft.fillCircle(90, 90, 30, COLOR_GREEN); tft.drawText(10, 90, "solidCircle"); delay(1000); tft.drawLine(0, 0, tft.maxX() - 1, tft.maxY() - 1, COLOR_CYAN); tft.drawText(10, 100, "line"); delay(1000); for (uint8_t i = 0; i < 127; i++) tft.drawPixel(random(tft.maxX()), random(tft.maxY()), random(0xffff)); tft.drawText(10, 110, "point"); delay(1000); for (uint8_t i = 0; i < 4; i++) { tft.clear(); tft.setOrientation(i); tft.drawRectangle(0, 0, tft.maxX() - 1, tft.maxY() - 1, COLOR_WHITE); tft.drawText(10, 10, "setOrientation (" + String("0123").substring(i, i + 1) + ")"); tft.drawRectangle(10, 20, 50, 60, COLOR_GREEN); tft.drawCircle(70, 80, 10, COLOR_BLUE); tft.drawLine(30, 40, 70, 80, COLOR_YELLOW); delay(1000); } tft.setOrientation(0); tft.clear(); tft.drawText(10, 100, "drawing bitmap"); delay(1000); tft.clear(); tft.setBackgroundColor(COLOR_BLACK); tft.drawBitmap(0, 0, tux, 180, 220, COLOR_WHITE); delay(5000); tft.setOrientation(0); tft.clear(); tft.setFont(Terminal12x16); tft.setBackgroundColor(COLOR_YELLOW); tft.drawText(10, 40, "bye!", COLOR_RED); tft.setBackgroundColor(COLOR_BLACK); tft.setFont(Terminal6x8); delay(1000); tft.drawText(10, 60, "off"); delay(1000); tft.setBacklight(false); tft.setDisplay(false); while(true); }
Video
Nếu hiện được như hình trên thì các bạn đã thành công trong bước đầu cài đặt rồi đấy =))), chúc các bạn “vọc” vui vẻ với module LCD này.