This repository contains a program to create a freely paintable canvas with an Arduino UNO R3/R4 and a 3.5" touch screen display shield, as shown below - Most 3.5" TFT LCD Touch displays use the ...

This is a fork of the code and examples from "Make: AVR Programming" that I've addapted to work with the Arduino Uno R3 (I'm using the SMD variant, but it shouldn't matter which UNO R3 you're using).