7-SEGMENT display on TFT (ILI9341) for STM32F411RE (Nucleo).

You can simple create displays one to eight digits wide. Dimensions of single digit are fixed. You can change colors of background (body) and segments ON and OFF. Segments are always visible when Seg_OFF_Color is different of B_Ground_Color. video

Create display.

  // Display Init
  // void DisplayInit(T7Display* Display, uint8_t N_Digits, DisplayType_t N_Segments, uint16_t X_position, uint16_t Y_position,
		 uint16_t B_Ground_Color, uint16_t Seg_ON_Color, uint16_t Seg_OFF_Color)
  T7Display LED8;
  DisplayInit(&LED8, 8, 14, 0, 50, ILI9341_BLACK, ILI9341_GREEN, GRAPHITE);
  T7Display LED4;
  DisplayInit(&LED4, 4, 7, 80, 150, ILI9341_NAVY, ILI9341_YELLOW, GRAPHITE);

Creates two displays with different colors.

Using.

Message.

uint8_t i;
uint8_t mesage[] =
	{ 0x75, 0x1c, 0x50, 0x6d, 0x00, 0x6d, 0x31, 0x37 };

for (i = 0; i < 8; i++)
	{
	  uint8_t segments = mesage[i];
	  uint8_t digit = i;
	  SEG7_write_display (&LED8, digit, segments);
	}
SEG7_draw_display (&LED8);

You can print a string:

      char message[] =
	  {"Kurs STM."};
      SEG7_print_ASCII(&LED8, 0, message);

Print predefined mesages and uint16_t values.

for (i = 4; i < 19; i++)
	{
	  DisplaySetColor(&LED8, i);
	  SEG7_print_display(&LED8, i);
	  SEG7_draw_display (&LED8);

	  SEG7_HEX_display(&LED4,DisplayGetColor(&LED8));
    }
DisplaySetColor(&LED8, 14);