Description

Draw a single character in the GLCD or GFXFF font or a Unicode glyph onto the screen.

Signature

• void TFT_eSPI::drawChar(int32_t x, int32_t y, uint16_t c, uint32_t color, uint32_t bg, uint8_t size)
• int16_t TFT_eSPI::drawChar(uint16_t uniCode, int32_t x, int32_t y)
• int16_t TFT_eSPI::drawChar(uint16_t uniCode, int32_t x, int32_t y, uint8_t font)

Parameters

• ìnt32_t x: x coord.
• ìnt32_t y: y coord.
• uìnt16_t c: Character.
• uìnt32_t color: Text color.
• uìnt32_t bg: Backgroung color.
• uìnt8_t size: Character size.
• uìnt16_t uniCode: Unicode glyph.
• uìnt8_t font: Text font number.

Result

• None,
• int16_t: width of character in pixels.

Example

#include <TFT_eSPI.h>

TFT_eSPI tft = TFT_eSPI();

void setup() {
  tft.init();
  tft.fillScreen(TFT_BLACK);
  tft.setTextColor(TFT_WHITE);
  tft.setTextSize(2);
}

void loop() {
  tft.drawChar('H', 10, 10, 2); // Draw the character 'H' at position (10, 10) with font size 2
  delay(1000);
}

In this example, we first initialize the TFT display using tft.init(). We then set the background color to black and the text color to white using tft.fillScreen(TFT_BLACK) and tft.setTextColor(TFT_WHITE), respectively. We also set the text size to 2 using tft.setTextSize(2).

Finally, in the loop() function, we use tft.drawChar('H', 10, 10, 2) to draw the character 'H' at position (10, 10) on the screen with font size 2. The drawChar() function takes four arguments: the character to be drawn, the x-coordinate, the y-coordinate, and the font size.