Problems with icons in st7735s.

Using Arduino Displays
1

Hello, first forgiveness for my poor english. I buy a lcd 1.8' with st7735s.

I have a image that i want use for icon and create with GIMP 2 and export in xbm format. The code is:

#define pos_32x22_T_width 32
#define pos_32x22_T_height 22
static unsigned char pos_32x22_T_bits[] = {
0x00, 0x00, 0x00, 0x00, 0x06, 0x00, 0x00, 0x60, 0x1e, 0x00, 0x00, 0x78,
0x78, 0x00, 0x00, 0x1e, 0x60, 0x00, 0x00, 0x06, 0x00, 0x3e, 0x7c, 0x00,
0x00, 0x7e, 0x7e, 0x00, 0x00, 0x66, 0x66, 0x00, 0x00, 0x66, 0x66, 0x00,
0x00, 0x66, 0x66, 0x00, 0x7e, 0x66, 0x66, 0x7e, 0x7e, 0x66, 0x66, 0x7e,
0x00, 0x66, 0x66, 0x00, 0x00, 0x66, 0x66, 0x00, 0x00, 0x66, 0x66, 0x00,
0x00, 0x7e, 0x7e, 0x00, 0x00, 0x3e, 0x7c, 0x00, 0x60, 0x00, 0x00, 0x06,
0x78, 0x00, 0x00, 0x1e, 0x1e, 0x00, 0x00, 0x78, 0x06, 0x00, 0x00, 0x60,
0x00, 0x00, 0x00, 0x00 };

And my program code is:

#include <avr/pgmspace.h>
#define fontdatatype uint8_t
#include <Adafruit_GFX.h> // Core graphics library
#include <Adafruit_ST7735.h> // Hardware-specific library
#include <SPI.h>

#define TFT_CS 10
#define TFT_RST 8
#define TFT_DC 9
#define TFT_SCLK 13
#define TFT_MOSI 11

Adafruit_ST7735 tft = Adafruit_ST7735(TFT_CS, TFT_DC, TFT_RST);

fontdatatype pos1[] PROGMEM={
//static unsigned short pos[] = {
0x00, 0x00, 0x00, 0x00, 0x06, 0x00, 0x00, 0x60, 0x1e, 0x00, 0x00, 0x78,
0x78, 0x00, 0x00, 0x1e, 0x60, 0x00, 0x00, 0x06, 0x00, 0x3e, 0x7c, 0x00,
0x00, 0x7e, 0x7e, 0x00, 0x00, 0x66, 0x66, 0x00, 0x00, 0x66, 0x66, 0x00,
0x00, 0x66, 0x66, 0x00, 0x7e, 0x66, 0x66, 0x7e, 0x7e, 0x66, 0x66, 0x7e,
0x00, 0x66, 0x66, 0x00, 0x00, 0x66, 0x66, 0x00, 0x00, 0x66, 0x66, 0x00,
0x00, 0x7e, 0x7e, 0x00, 0x00, 0x3e, 0x7c, 0x00, 0x60, 0x00, 0x00, 0x06,
0x78, 0x00, 0x00, 0x1e, 0x1e, 0x00, 0x00, 0x78, 0x06, 0x00, 0x00, 0x60,
0x00, 0x00, 0x00, 0x00 };

#define YAMAHA 0xCCCC
#define BLACK 0x0000
#define BLUE 0x001F
#define RED 0xF800
#define GREEN 0x07E0
#define CYAN 0x07FF
#define MAGENTA 0xF81F
#define YELLOW 0xFFE0
#define WHITE 0xFFFF

void setup(void) {
tft.initR(INITR_BLACKTAB);
tft.fillScreen(ST7735_BLACK);
}

void loop() {
tft.setRotation(3);
tft.drawBitmap(5, 4, pos1, 32, 22, RED);
}

The problems is that the icon isn´t draw correcty.

If the icon is for example: "THHT" the lcd draw "HTTH".

Thanks for all. And forgiveness for my english.

2

please use code tags [code] and [/code] around your code

3

Excuse me for the code:

The code is:

#include <avr/pgmspace.h>
#define fontdatatype uint8_t
#include <Adafruit_GFX.h>    // Core graphics library
#include <Adafruit_ST7735.h> // Hardware-specific library
#include <SPI.h>


#define TFT_CS     10
#define TFT_RST    8 
#define TFT_DC     9
#define TFT_SCLK 13   
#define TFT_MOSI 11   
 
Adafruit_ST7735 tft = Adafruit_ST7735(TFT_CS,  TFT_DC, TFT_RST);

fontdatatype pos1[] PROGMEM={
//static unsigned short pos[] = {
   0x00, 0x00, 0x00, 0x00, 0x06, 0x00, 0x00, 0x60, 0x1e, 0x00, 0x00, 0x78,
   0x78, 0x00, 0x00, 0x1e, 0x60, 0x00, 0x00, 0x06, 0x00, 0x3e, 0x7c, 0x00,
   0x00, 0x7e, 0x7e, 0x00, 0x00, 0x66, 0x66, 0x00, 0x00, 0x66, 0x66, 0x00,
   0x00, 0x66, 0x66, 0x00, 0x7e, 0x66, 0x66, 0x7e, 0x7e, 0x66, 0x66, 0x7e,
   0x00, 0x66, 0x66, 0x00, 0x00, 0x66, 0x66, 0x00, 0x00, 0x66, 0x66, 0x00,
   0x00, 0x7e, 0x7e, 0x00, 0x00, 0x3e, 0x7c, 0x00, 0x60, 0x00, 0x00, 0x06,
   0x78, 0x00, 0x00, 0x1e, 0x1e, 0x00, 0x00, 0x78, 0x06, 0x00, 0x00, 0x60,
   0x00, 0x00, 0x00, 0x00  };

#define YAMAHA  0xCCCC
#define   BLACK   0x0000
#define   BLUE    0x001F
#define   RED     0xF800
#define   GREEN   0x07E0
#define CYAN    0x07FF
#define MAGENTA 0xF81F
#define YELLOW  0xFFE0 
#define WHITE   0xFFFF


void setup(void) {
    tft.initR(INITR_BLACKTAB);   
    tft.fillScreen(ST7735_BLACK);
}

void loop() {
      tft.setRotation(3);
      tft.drawBitmap(5, 4,  pos1, 32, 22, RED);
}

Thanks for all.

4

Good monday morning. I can find a solution, but doesnt the best. I export the icon code and change the column. 1 -> 4 2->3 3->2 and 4->1. And the icon draw well. It isnt the correct solution but work well.

Thanks.