“Created Keyboard layout in TFT LCD Shield & also you can use as typewriter
In this tutorial, you will learn how to use and set up 2.4″ Touch LCD Shield for Arduino. First, you’ll see some general information about this shield. And after learning how to set the shield up, you’ll see 3 practical projects.
What You Will Learn:
View text, writing and arbitrary geometric shapes with custom colors
View high-quality BMP colored pictures
create the Paint software
The role of screens in electronic projects is very important. Screens can be of very simple types such as 7 Segment or character LCDs or more advanced models like OLEDs and TFT LCDs.
2.4” TFT shield is one of the most widely used graphic screens. Here are its most important features:
240*320 pixels resolution
Ability to display 262000 different colors
Includes a touchpad
5v supply voltage
Arduino pins 2, 3, A5, and A4 are free and you can use them to connect this shield.
2.4” diagonal LCD TFT display
Bright, 4 white-LED backlight, on by default but you can connect the transistor to a digital pin for backlight control
Colorful, 18-bit 262, 000 different shades
4-wire resistive touch screen
8 bit digital interface, plus 4 control lines
5V compatible, use with 3.3V or 5V logic
For Arduino UNO R3
Driver IC: ILI9341
How to Calibrate the Touch Screen?
One of the most important features of this LCD is including a touch panel. If you are about to use the LCD, you need to know the coordinates of the point you touch. To do so, you should upload the following code on your Arduino board and open the serial monitor. Then touch your desired location and write the coordinates displayed on the serial monitor. You can use this coordination in any other project.”