Now, I've tested a second version, but it was different ( probably use a different display driver) and need an update on firmware source.
I've tested this library, ( thanks to the author Joao ) :
https://github.com/JoaoLopesF/SPFD5408
but I made some adjustment in order to function correctly with this TFT display.
Without this amendment, the issues were :
- Colour's difference
- Wrong "x" and "y" axis on the touch
Colour's difference :
To adjust the colour issue , I've added just one line/command on "SPFD5408_Adafruit_TFTLCD" library.
On the "Adafruit_TFTLCD::begin" procedure , I 've added :
writeRegister8(ILI9341_INVERTON, 0);//
Below , the complete function with the correction higlighted in red :
void Adafruit_TFTLCD::begin(uint16_t id) {
uint8_t i = 0;
reset();
delay(200);
if((id == 0x9325) || (id == 0x9328)) {
uint16_t a, d;
driver = ID_932X;
CS_ACTIVE;
while(i < sizeof(ILI932x_regValues) / sizeof(uint16_t)) {
a = pgm_read_word(&ILI932x_regValues[i++]);
d = pgm_read_word(&ILI932x_regValues[i++]);
if(a == TFTLCD_DELAY) delay(d);
else writeRegister16(a, d);
}
setRotation(rotation);
setAddrWindow(0, 0, TFTWIDTH-1, TFTHEIGHT-1);
} else if (id == 0x9341) {
uint16_t a, d;
driver = ID_9341;
CS_ACTIVE;
writeRegister8(ILI9341_SOFTRESET, 0);
delay(50);
writeRegister8(ILI9341_DISPLAYOFF, 0);
writeRegister8(ILI9341_POWERCONTROL1, 0x23);
writeRegister8(ILI9341_POWERCONTROL2, 0x10);
writeRegister16(ILI9341_VCOMCONTROL1, 0x2B2B);
writeRegister8(ILI9341_VCOMCONTROL2, 0xC0);
writeRegister8(ILI9341_MEMCONTROL, ILI9341_MADCTL_MY | ILI9341_MADCTL_BGR);
writeRegister8(ILI9341_PIXELFORMAT, 0x55);
writeRegister16(ILI9341_FRAMECONTROL, 0x001B);
writeRegister8(ILI9341_ENTRYMODE, 0x07);
/* writeRegister32(ILI9341_DISPLAYFUNC, 0x0A822700);*/
writeRegister8(ILI9341_SLEEPOUT, 0);
delay(150);
writeRegister8(ILI9341_DISPLAYON, 0);
delay(500);
// *** SPFD5408 change -- Begin
// Not tested yet
writeRegister8(ILI9341_INVERTON, 0);//included by paco
delay(500);//included by paco - could be removed ?
// *** SPFD5408 change -- End
setAddrWindow(0, 0, TFTWIDTH-1, TFTHEIGHT-1);
return;
} else if (id == 0x8357) {
// HX8357D
driver = ID_HX8357D;
CS_ACTIVE;
while(i < sizeof(HX8357D_regValues)) {
uint8_t r = pgm_read_byte(&HX8357D_regValues[i++]);
uint8_t len = pgm_read_byte(&HX8357D_regValues[i++]);
if(r == TFTLCD_DELAY) {
delay(len);
} else {
//Serial.print("Register $"); Serial.print(r, HEX);
//Serial.print(" datalen "); Serial.println(len);
CS_ACTIVE;
CD_COMMAND;
write8(r);
CD_DATA;
for (uint8_t d=0; d<len; d++) {
uint8_t x = pgm_read_byte(&HX8357D_regValues[i++]);
write8(x);
}
CS_IDLE;
}
}
Touch has a wrong "x" and "y" axis
Below, you can find the example source file "spfd5408_tftpaint" by Jao Lopes, contained in the library.
I function perfectly, just the touch had a wrong "X" & "Y" axis value.
I made a few adjustment to fix it . See below higlighted in red.
// Paint example specifically for the TFTLCD breakout board.
// If using the Arduino shield, use the tftpaint_shield.pde sketch instead!
// DOES NOT CURRENTLY WORK ON ARDUINO LEONARDO
// Modified for SPFD5408 Library by Joao Lopes
// Version 0.9.2 - Rotation for Mega
// *** 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
#if defined(__SAM3X8E__)
#undef __FlashStringHelper::F(string_literal)
#define F(string_literal) string_literal
#endif
// 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).
// D0 connects to digital pin 22
// D1 connects to digital pin 23
// D2 connects to digital pin 24
// D3 connects to digital pin 25
// D4 connects to digital pin 26
// D5 connects to digital pin 27
// D6 connects to digital pin 28
// D7 connects to digital pin 29
// For the Arduino Due, use digital pins 33 through 40
// (on the 2-row header at the end of the board).
// D0 connects to digital pin 33
// D1 connects to digital pin 34
// D2 connects to digital pin 35
// D3 connects to digital pin 36
// D4 connects to digital pin 37
// D5 connects to digital pin 38
// D6 connects to digital pin 39
// D7 connects to digital pin 40
#define YP A1 // must be an analog pin, use "An" notation!
#define XM A2 // must be an analog pin, use "An" notation!
#define YM 7 // can be a digital pin
#define XP 6 // can be a digital pin
// Original values
//#define TS_MINX 150
//#define TS_MINY 120
//#define TS_MAXX 920
//#define TS_MAXY 940
// Calibrate values
#define TS_MINX 100
#define TS_MINY 100
#define TS_MAXX 965
#define TS_MAXY 905
// For better pressure precision, we need to know the resistance
// between X+ and X- Use any multimeter to read it
// For the one we're using, its 300 ohms across the X plate
TouchScreen ts = TouchScreen(XP, YP, XM, YM, 300);
#define LCD_CS A3
#define LCD_CD A2
#define LCD_WR A1
#define LCD_RD A0
// optional
#define LCD_RESET A4
// 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 0xFFFF
Adafruit_TFTLCD tft(LCD_CS, LCD_CD, LCD_WR, LCD_RD, LCD_RESET);
#define BOXSIZE 40
#define PENRADIUS 3
int oldcolor, currentcolor;
void setup(void) {
Serial.begin(9600);
Serial.println(F("Paint!"));
tft.reset();
// *** SPFD5408 change -- Begin
uint16_t identifier = tft.readID();
Serial.print(F("ID : "));
Serial.println(identifier,HEX);// add by rob
// 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);
tft.begin(0x9341); // SDFP5408
tft.setRotation(0); // Need for the Mega, please changed for your choice or rotation initial
// Border
drawBorder();
// Initial screen
tft.setCursor (55, 50);
tft.setTextSize (3);
tft.setTextColor(RED);
tft.println("SPFD5408");
tft.setCursor (65, 85);
tft.println("Library");
tft.setCursor (55, 150);
tft.setTextSize (2);
tft.setTextColor(BLACK);
tft.println("TFT Paint");
tft.setCursor (80, 250);
tft.setTextSize (1);
tft.setTextColor(BLACK);
tft.println("Touch to proceed");
// Wait touch
waitOneTouch();
// *** SPFD5408 change -- End
// -- End
// Paint
tft.fillScreen(BLACK);
tft.fillRect(0, 0, BOXSIZE, BOXSIZE, RED);
tft.fillRect(BOXSIZE, 0, BOXSIZE, BOXSIZE, YELLOW);
tft.fillRect(BOXSIZE*2, 0, BOXSIZE, BOXSIZE, GREEN);
tft.fillRect(BOXSIZE*3, 0, BOXSIZE, BOXSIZE, CYAN);
tft.fillRect(BOXSIZE*4, 0, BOXSIZE, BOXSIZE, BLUE);
tft.fillRect(BOXSIZE*5, 0, BOXSIZE, BOXSIZE, MAGENTA);
// tft.fillRect(BOXSIZE*6, 0, BOXSIZE, BOXSIZE, WHITE);
tft.drawRect(0, 0, BOXSIZE, BOXSIZE, WHITE);
currentcolor = RED;
pinMode(13, OUTPUT);
}
#define MINPRESSURE 10
#define MAXPRESSURE 1000
void loop()
{
digitalWrite(13, HIGH);
TSPoint p = ts.getPoint();
digitalWrite(13, LOW);
// if sharing pins, you'll need to fix the directions of the touchscreen pins
//pinMode(XP, OUTPUT);
pinMode(XM, OUTPUT);
pinMode(YP, OUTPUT);
//pinMode(YM, OUTPUT);
// we have some minimum pressure we consider 'valid'
// pressure of 0 means no pressing!
if (p.z > MINPRESSURE && p.z < MAXPRESSURE) {
/*
Serial.print("X = "); Serial.print(p.x
Serial.print("\tY = "); Serial.print(p.y);
Serial.print("\tPressure = "); Serial.println(p.z);
*/
if (p.y < (TS_MINY-5)) {
Serial.println("erase");
// press the bottom of the screen to erase
tft.fillRect(0, BOXSIZE, tft.width(), tft.height()-BOXSIZE, BLACK);
}
// scale from 0->1023 to tft.width
// *** SPFD5408 change -- Begin
// Bug in in original code
// p.x = map(p.y, TS_MINY, TS_MAXY, 0, tft.height
p.y=1023-p.y; //added by Paco
int terri=p.x; //added by Paco
p.x=p.y; //added by Paco
p.y=terri; //added by Paco
p.x = map(p.x, TS_MINX, TS_MAXX, 0, tft.width());
// *** SPFD5408 change -- End
p.y = map(p.y, TS_MINY, TS_MAXY, 0, tft.height());
/*
Serial.print("("); Serial.print(p.x);
Serial.print(", "); Serial.print(p.y);
Serial.println(")");
*/
if (p.y < BOXSIZE) {
oldcolor = currentcolor;
if (p.x < BOXSIZE) {
currentcolor = RED;
tft.drawRect(0, 0, BOXSIZE, BOXSIZE, WHITE);
} else if (p.x < BOXSIZE*2) {
currentcolor = YELLOW;
tft.drawRect(BOXSIZE, 0, BOXSIZE, BOXSIZE, WHITE);
} else if (p.x < BOXSIZE*3) {
currentcolor = GREEN;
tft.drawRect(BOXSIZE*2, 0, BOXSIZE, BOXSIZE, WHITE);
} else if (p.x < BOXSIZE*4) {
currentcolor = CYAN;
tft.drawRect(BOXSIZE*3, 0, BOXSIZE, BOXSIZE, WHITE);
} else if (p.x < BOXSIZE*5) {
currentcolor = BLUE;
tft.drawRect(BOXSIZE*4, 0, BOXSIZE, BOXSIZE, WHITE);
} else if (p.x < BOXSIZE*6) {
currentcolor = MAGENTA;
tft.drawRect(BOXSIZE*5, 0, BOXSIZE, BOXSIZE, WHITE);
}
if (oldcolor != currentcolor) {
if (oldcolor == RED) tft.fillRect(0, 0, BOXSIZE, BOXSIZE, RED);
if (oldcolor == YELLOW) tft.fillRect(BOXSIZE, 0, BOXSIZE, BOXSIZE, YELLOW);
if (oldcolor == GREEN) tft.fillRect(BOXSIZE*2, 0, BOXSIZE, BOXSIZE, GREEN);
if (oldcolor == CYAN) tft.fillRect(BOXSIZE*3, 0, BOXSIZE, BOXSIZE, CYAN);
if (oldcolor == BLUE) tft.fillRect(BOXSIZE*4, 0, BOXSIZE, BOXSIZE, BLUE);
if (oldcolor == MAGENTA) tft.fillRect(BOXSIZE*5, 0, BOXSIZE, BOXSIZE, MAGENTA);
}
}
if (((p.y-PENRADIUS) > BOXSIZE) && ((p.y+PENRADIUS) < tft.height())) {
tft.fillCircle(p.x, p.y, PENRADIUS, currentcolor);
}
}
}
// Wait one touch
TSPoint waitOneTouch() {
// wait 1 touch to exit function
TSPoint p;
do {
p= ts.getPoint();
pinMode(XM, OUTPUT); //Pins configures again for TFT control
pinMode(YP, OUTPUT);
} while((p.z < MINPRESSURE )|| (p.z > MAXPRESSURE));
return p;
}
void drawBorder () {
// Draw a border
uint16_t width = tft.width() - 1;
uint16_t height = tft.height() - 1;
uint8_t border = 10;
tft.fillScreen(RED);
tft.fillRect(border, border, (width - border * 2), (height - border * 2), WHITE);
}
You can see the result here :
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