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  • How to use 2.4 inch TFT LCD SPFD5408 with Arduino Uno and Mega

    Hi Joao,I believe I tried it on two boards, this weekend I'll give it another try. Thanks for the reply.

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  • How to use 2.4 inch TFT LCD SPFD5408 with Arduino Uno and Mega

    Any assistance would be greatly appreciated, I have a 2.4" LCD and an Arduino mega 2560, tried multiple tutorials on getting the LCD to work with a mega with no success. No issues with an Uno model but at this point I'm stumped as to what's going wrong with the Mega 2560. Below is a sketch which compiles without an error, however the LCD just remains lit/white. Any assistance would be appreciated// IMPORTANT: Adafruit_TFTLCD LIBRARY MUST BE SPECIFICALLY// CONFIGURED FOR EITHER THE TFT SHIELD OR THE BREAKOUT BOARD.// SEE RELEVANT COMMENTS IN Adafruit_TFTLCD.h FOR SETUP.// Modified for SPFD5408 Library by Joao Lopes// Version 0.9.2 - Rotation for Mega and screen initial// *** SPFD5408 change -- Begin#include <SPFD5408_Adafruit_GFX.h> // Core graphics library#include <SPF...see more »Any assistance would be greatly appreciated, I have a 2.4" LCD and an Arduino mega 2560, tried multiple tutorials on getting the LCD to work with a mega with no success. No issues with an Uno model but at this point I'm stumped as to what's going wrong with the Mega 2560. Below is a sketch which compiles without an error, however the LCD just remains lit/white. Any assistance would be appreciated// IMPORTANT: Adafruit_TFTLCD LIBRARY MUST BE SPECIFICALLY// CONFIGURED FOR EITHER THE TFT SHIELD OR THE BREAKOUT BOARD.// SEE RELEVANT COMMENTS IN Adafruit_TFTLCD.h FOR SETUP.// Modified for SPFD5408 Library by Joao Lopes// Version 0.9.2 - Rotation for Mega and screen initial// *** SPFD5408 change -- Begin#include <SPFD5408_Adafruit_GFX.h> // Core graphics library#include <SPFD5408_Adafruit_TFTLCD.h> // Hardware-specific library#include <SPFD5408_TouchScreen.h>// *** SPFD5408 change -- End// The control pins for the LCD can be assigned to any digital or// analog pins...but we'll use the analog pins as this allows us to// double up the pins with the touch screen (see the TFT paint example).#define LCD_CS A3 // Chip Select goes to Analog 3#define LCD_CD A2 // Command/Data goes to Analog 2#define LCD_WR A1 // LCD Write goes to Analog 1#define LCD_RD A0 // LCD Read goes to Analog 0#define YP A1 // must be an analog pin, use "An" notation!#define XM A2 // must be an analog pin, use "An" notation!#define YM 5 // can be a digital pin#define XP 6 // can be a digital pin#define LCD_RESET A4 // Can alternately just connect to Arduino's reset pin// When using the BREAKOUT BOARD only, use these 8 data lines to the LCD:// For the Arduino Uno, Duemilanove, Diecimila, etc.:// D0 connects to digital pin 8 (Notice these are// D1 connects to digital pin 9 NOT in order!)// D2 connects to digital pin 2// D3 connects to digital pin 3// D4 connects to digital pin 4// D5 connects to digital pin 5// D6 connects to digital pin 6// D7 connects to digital pin 7// For the Arduino Mega, use digital pins 22 through 29// (on the 2-row header at the end of the board).// Assign human-readable names to some common 16-bit color values:#define BLACK 0x0000#define BLUE 0x001F#define RED 0xF800#define GREEN 0x07E0#define CYAN 0x07FF#define MAGENTA 0xF81F#define YELLOW 0xFFE0#define WHITE 0xFFFFAdafruit_TFTLCD tft(LCD_CS, LCD_CD, LCD_WR, LCD_RD, LCD_RESET);// If using the shield, all control and data lines are fixed, and// a simpler declaration can optionally be used:// Adafruit_TFTLCD tft;// -- Setupvoid setup(void) { Serial.begin(9600); progmemPrintln(PSTR("TFT LCD test"));#ifdef USE_ADAFRUIT_SHIELD_PINOUT progmemPrintln(PSTR("Using Adafruit 2.8\" TFT Arduino Shield Pinout"));#else progmemPrintln(PSTR("Using Adafruit 2.8\" TFT Breakout Board Pinout"));#endif tft.reset(); // *** SPFD5408 change -- Begin// Original code commented// uint16_t identifier = tft.readID();//// if(identifier == 0x9325) {// Serial.println(F("Found ILI9325 LCD driver"));// } else if(identifier == 0x9328) {// Serial.println(F("Found ILI9328 LCD driver"));// } else if(identifier == 0x7575) {// Serial.println(F("Found HX8347G LCD driver"));// } else if(identifier == 0x9341) {// Serial.println(F("Found ILI9341 LCD driver"));// } else if(identifier == 0x8357) {// Serial.println(F("Found HX8357D LCD driver"));// } else {// Serial.print(F("Unknown LCD driver chip: "));// Serial.println(identifier, HEX);// Serial.println(F("If using the Adafruit 2.8\" TFT Arduino shield, the line:"));// Serial.println(F(" #define USE_ADAFRUIT_SHIELD_PINOUT"));// Serial.println(F("should appear in the library header (Adafruit_TFT.h)."));// Serial.println(F("If using the breakout board, it should NOT be #defined!"));// Serial.println(F("Also if using the breakout, double-check that all wiring"));// Serial.println(F("matches the tutorial."));// return;// }//// tft.begin(identifier); // Code changed to works tft.begin(0x9341); // SDFP5408 tft.setRotation(0); // Need for the Mega, please changed for your choice or rotation initial // *** SPFD5408 change -- End progmemPrintln(PSTR("Benchmark Time (microseconds)")); progmemPrint(PSTR("Screen fill ")); Serial.println(testFillScreen()); delay(500); progmemPrint(PSTR("Text ")); Serial.println(testText()); delay(3000); progmemPrint(PSTR("Lines ")); Serial.println(testLines(CYAN)); delay(500); progmemPrint(PSTR("Horiz/Vert Lines ")); Serial.println(testFastLines(RED, BLUE)); delay(500); progmemPrint(PSTR("Rectangles (outline) ")); Serial.println(testRects(GREEN)); delay(500); progmemPrint(PSTR("Rectangles (filled) ")); Serial.println(testFilledRects(YELLOW, MAGENTA)); delay(500); progmemPrint(PSTR("Circles (filled) ")); Serial.println(testFilledCircles(10, MAGENTA)); progmemPrint(PSTR("Circles (outline) ")); Serial.println(testCircles(10, WHITE)); delay(500); progmemPrint(PSTR("Triangles (outline) ")); Serial.println(testTriangles()); delay(500); progmemPrint(PSTR("Triangles (filled) ")); Serial.println(testFilledTriangles()); delay(500); progmemPrint(PSTR("Rounded rects (outline) ")); Serial.println(testRoundRects()); delay(500); progmemPrint(PSTR("Rounded rects (filled) ")); Serial.println(testFilledRoundRects()); delay(500); progmemPrintln(PSTR("Done!"));}void loop(void) { for(uint8_t rotation=0; rotation<4; rotation++) { tft.setRotation(rotation); testText(); delay(2000); }}unsigned long testFillScreen() { unsigned long start = micros(); tft.fillScreen(BLACK); tft.fillScreen(RED); tft.fillScreen(GREEN); tft.fillScreen(BLUE); tft.fillScreen(BLACK); return micros() - start;}unsigned long testText() { tft.fillScreen(BLACK); unsigned long start = micros(); tft.setCursor(0, 0); tft.setTextColor(WHITE); tft.setTextSize(1); tft.println("Hello World!"); tft.setTextColor(YELLOW); tft.setTextSize(2); tft.println(1234.56); tft.setTextColor(RED); tft.setTextSize(3); tft.println(0xDEADBEEF, HEX); tft.println(); tft.setTextColor(GREEN); tft.setTextSize(5); tft.println("Groop"); tft.setTextSize(2); tft.println("I implore thee,"); tft.setTextSize(1); tft.println("my foonting turlingdromes."); tft.println("And hooptiously drangle me"); tft.println("with crinkly bindlewurdles,"); tft.println("Or I will rend thee"); tft.println("in the gobberwarts"); tft.println("with my blurglecruncheon,"); tft.println("see if I don't!"); return micros() - start;}unsigned long testLines(uint16_t color) { unsigned long start, t; int x1, y1, x2, y2, w = tft.width(), h = tft.height(); tft.fillScreen(BLACK); x1 = y1 = 0; y2 = h - 1; start = micros(); for(x2=0; x2<w; x2+=6) tft.drawLine(x1, y1, x2, y2, color); x2 = w - 1; for(y2=0; y2<h; y2+=6) tft.drawLine(x1, y1, x2, y2, color); t = micros() - start; // fillScreen doesn't count against timing tft.fillScreen(BLACK); x1 = w - 1; y1 = 0; y2 = h - 1; start = micros(); for(x2=0; x2<w; x2+=6) tft.drawLine(x1, y1, x2, y2, color); x2 = 0; for(y2=0; y2<h; y2+=6) tft.drawLine(x1, y1, x2, y2, color); t += micros() - start; tft.fillScreen(BLACK); x1 = 0; y1 = h - 1; y2 = 0; start = micros(); for(x2=0; x2<w; x2+=6) tft.drawLine(x1, y1, x2, y2, color); x2 = w - 1; for(y2=0; y2<h; y2+=6) tft.drawLine(x1, y1, x2, y2, color); t += micros() - start; tft.fillScreen(BLACK); x1 = w - 1; y1 = h - 1; y2 = 0; start = micros(); for(x2=0; x2<w; x2+=6) tft.drawLine(x1, y1, x2, y2, color); x2 = 0; for(y2=0; y2<h; y2+=6) tft.drawLine(x1, y1, x2, y2, color); return micros() - start;}unsigned long testFastLines(uint16_t color1, uint16_t color2) { unsigned long start; int x, y, w = tft.width(), h = tft.height(); tft.fillScreen(BLACK); start = micros(); for(y=0; y<h; y+=5) tft.drawFastHLine(0, y, w, color1); for(x=0; x<w; x+=5) tft.drawFastVLine(x, 0, h, color2); return micros() - start;}unsigned long testRects(uint16_t color) { unsigned long start; int n, i, i2, cx = tft.width() / 2, cy = tft.height() / 2; tft.fillScreen(BLACK); n = min(tft.width(), tft.height()); start = micros(); for(i=2; i<n; i+=6) { i2 = i / 2; tft.drawRect(cx-i2, cy-i2, i, i, color); } return micros() - start;}unsigned long testFilledRects(uint16_t color1, uint16_t color2) { unsigned long start, t = 0; int n, i, i2, cx = tft.width() / 2 - 1, cy = tft.height() / 2 - 1; tft.fillScreen(BLACK); n = min(tft.width(), tft.height()); for(i=n; i>0; i-=6) { i2 = i / 2; start = micros(); tft.fillRect(cx-i2, cy-i2, i, i, color1); t += micros() - start; // Outlines are not included in timing results tft.drawRect(cx-i2, cy-i2, i, i, color2); } return t;}unsigned long testFilledCircles(uint8_t radius, uint16_t color) { unsigned long start; int x, y, w = tft.width(), h = tft.height(), r2 = radius * 2; tft.fillScreen(BLACK); start = micros(); for(x=radius; x<w; x+=r2) { for(y=radius; y<h; y+=r2) { tft.fillCircle(x, y, radius, color); } } return micros() - start;}unsigned long testCircles(uint8_t radius, uint16_t color) { unsigned long start; int x, y, r2 = radius * 2, w = tft.width() + radius, h = tft.height() + radius; // Screen is not cleared for this one -- this is // intentional and does not affect the reported time. start = micros(); for(x=0; x<w; x+=r2) { for(y=0; y<h; y+=r2) { tft.drawCircle(x, y, radius, color); } } return micros() - start;}unsigned long testTriangles() { unsigned long start; int n, i, cx = tft.width() / 2 - 1, cy = tft.height() / 2 - 1; tft.fillScreen(BLACK); n = min(cx, cy); start = micros(); for(i=0; i<n; i+=5) { tft.drawTriangle( cx , cy - i, // peak cx - i, cy + i, // bottom left cx + i, cy + i, // bottom right tft.color565(0, 0, i)); } return micros() - start;}unsigned long testFilledTriangles() { unsigned long start, t = 0; int i, cx = tft.width() / 2 - 1, cy = tft.height() / 2 - 1; tft.fillScreen(BLACK); start = micros(); for(i=min(cx,cy); i>10; i-=5) { start = micros(); tft.fillTriangle(cx, cy - i, cx - i, cy + i, cx + i, cy + i, tft.color565(0, i, i)); t += micros() - start; tft.drawTriangle(cx, cy - i, cx - i, cy + i, cx + i, cy + i, tft.color565(i, i, 0)); } return t;}unsigned long testRoundRects() { unsigned long start; int w, i, i2, cx = tft.width() / 2 - 1, cy = tft.height() / 2 - 1; tft.fillScreen(BLACK); w = min(tft.width(), tft.height()); start = micros(); for(i=0; i<w; i+=6) { i2 = i / 2; tft.drawRoundRect(cx-i2, cy-i2, i, i, i/8, tft.color565(i, 0, 0)); } return micros() - start;}unsigned long testFilledRoundRects() { unsigned long start; int i, i2, cx = tft.width() / 2 - 1, cy = tft.height() / 2 - 1; tft.fillScreen(BLACK); start = micros(); for(i=min(tft.width(), tft.height()); i>20; i-=6) { i2 = i / 2; tft.fillRoundRect(cx-i2, cy-i2, i, i, i/8, tft.color565(0, i, 0)); } return micros() - start;}// Copy string from flash to serial port// Source string MUST be inside a PSTR() declaration!void progmemPrint(const char *str) { char c; while(c = pgm_read_byte(str++)) Serial.print(c);}// Same as above, with trailing newlinevoid progmemPrintln(const char *str) { progmemPrint(str); Serial.println();}

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