You can get buy some really cheap LCD and touchscreen modules from places like eBay. They're actually great devices that let you add a display to your Arduino and microcontroller projects for under £10. But they don't come with any documentation so they can be a bit tricky to get working if you've never used them before.
In this video I'll walk you through the connections and software needed to get them working. My screen is a generic, red, Chinese sourced device using the very common combination of an ILI9341 based LCD module with a touchscreen driven by the XPT2046 touch controller.
You can easily get hold of one of these touchscreens at Amazon or eBay.
Amazon: https://amzn.to/39ZyWMD
eBay : http://ebay.us/sOCSyI
Make sure you visit the project pages on my website for circuit diagrams and breadboard layouts, along with more information and details.
https://bytesnbits.co.uk/spilcdsetu...
ILI9341 Library
https://github.com/adafruit/Adafruit_...
XPT2046 Library
https://github.com/PaulStoffregen/XPT...
Adafruit GFX Library
https://github.com/adafruit/Adafruit...
Adafruit LCD tutorial
https://learn.adafruit.com/adafruit2...
Adafruit GFX Library Tutorial
https://learn.adafruit.com/adafruitg...