Bonezegei_ILI9341 and lightweight Arduino library for the ILI9341 TFT LCD module. The library provides basic functions for drawing pixels, lines, rectangles, circles, triangles, text and bitmaps on the LCD screen. The library is compatible with ESP32 that use the SPI interface. The library is easy to use and requires minimal memory and processing resources.

1. Basic Usage

Simple demo for ILI9341 Fonts and Shapes

/*
  Author: Jofel Batutay
  Date: July 2023

  Basic Example for ILI9341
  This library only support 18bit color format (0xRRGGBB) example RED = 0xFF0000, BLUE = 0x0000FF
  The LCD is Connected to the VSPI of ESP32
  ------------------------
  |  LCD PIN   |  ESP32  |
  | MOSI       |   23    |
  | SCK        |   18    |
  | MISO       |   19    | Optional ( not Necessarily Connected to the LCD when mode is diplay Only)
  | CS         |   4     | Can be Assign to other pin
  | RST        |   16    | Can be Assign to other pin
  | DC         |   17    | Can be Assign to other pin
  ------------------------
    LED of the LCD can be connected to the 3.3V with 100 Ohm resitor
*/


#include <Bonezegei_ILI9341.h>

#define LCD_DC 17
#define LCD_CS 4
#define LCD_RST 16
Bonezegei_ILI9341 lcd(LCD_RST, LCD_CS, LCD_DC);  //Initialize the LCD

void setup() {
  lcd.begin();
  delay(10);

  lcd.drawRectangle(10, 10, 110, 60, 0xFF0000);  //Draw Red Rectangle
  delay(2000);
  lcd.drawFilledRectangle(10, 10, 110, 60, 0xFF0000);  //Draw Red Fill Rectangle
  lcd.drawText(20, 20, "Bonzegei", COLOR_WHITE);       //Draw Text (Dafault Font is VERDANA 12)
  delay(2000);
  lcd.clear(0xFFFFFF);  //Fill The Screen With Color White

  lcd.setFont(ARIAL_8);                   //Set Font to Arial 8px
  lcd.drawText(10, 20, "Arial 8 ", 0x0);  //Draw text

  lcd.setFont(ARIAL_10);  //Set Font to Arial 10px
  lcd.drawText(10, 40, "Arial 10  ", 0x0);

  lcd.setFont(ARIAL_11);  //Set Font to Arial 11px
  lcd.drawText(10, 60, "Arial 11 ; ", 0x0);

  lcd.setFont(VERDANA_12);  //Set Font to Verdana 12
  lcd.drawText(10, 80, "VERDANA 12 ", 0x0);

  lcd.setFont(VERDANA_BOLD_12);  //Set Font to Verdana 12 Bold
  lcd.drawText(10, 100, "VERDANA 12 BOLD ", 0x0);

  lcd.setFont(UBUNTU_12);  //Set Font to Ubuntu 12
  lcd.drawText(10, 120, "UBUNTU 12 ", 0x0);

  lcd.setFont(UBUNTU_BOLD_12);  //Set Font to Ubuntu 12 Bold
  lcd.drawText(10, 140, "UBUNTU BOLD 12 ", 0x0);
  delay(5000);
}

void loop() {
  lcd.clear(COLOR_RED);
  delay(1000);
  lcd.clear(COLOR_GREEN);
  delay(1000);
  lcd.clear(COLOR_BLUE);
  delay(1000);
}

References

1. Batutay, Jofel. (2023). Arduino Library Installation. Bonezegei. https://bonezegei.com/?c=resources/tutorial&&d=resources/tutorial/libraries/install&&nav=1

Github

Bonezegei Repositories

ResearchGate

Jofel Batutay (Bonezegei)

Cite this

1. Batutay, Jofel. (2023). Bonezegei ILI9341 : Simple Arduino Library for TFT LCD. Bonezegei. https://bonezegei.com/?c=resources/tutorial&&d=resources/tutorial/libraries/bonezegei_ili9341&&submenu=3&&nav=1