This repository contains a program to calibrate a 3.5" touch screen display shield, as shown below - Most 3.5" LCD Touch displays use the ILI9486 Display Driver and include a resistive touchscreen.

With extensive tutorials ( 20 Chapters covering over 80 topics ) + 20 DIY projects included to show you how, CleO35 ( the 3.5in display version ) allows both hobbyists and professionals alike to ...

Result: The first time you run the program, it is going to ask you to calibrate the touch screen (see picture below). It then stores the calibration data in EEPROM to skip calibration on future ...

Its designer and creator explains more : It uses an Arduino Mega board and a 3.2” TFT touch screen with a suitable shield for connecting the screen with the Arduino Board.

Sunflower Shield adds a touch-enabled 3.5in QVGA TFT LCD to Arduino projects, and demonstrates Bridgetek’s FT813 video controller – which uses the firm’s innovative ‘EVE’ video controller which does ...

The specific panel he chose was a 4D Systems 1.44” TFT LCD that happened to feature a dedicated graphics processor, which should allow for some fantastic visuals when used to its fullest potential.