ELEGOO UNO R3 2.8 Inches TFT Touch Screen with SD Card Socket w/All Technical Data in CD for Arduino UNO R3

Arrived on time packaging was great and the display worked flawlessly this is the third display I’ve purchased for different projects

Really good touch screen for the price. You have to push quite hard I find but once you've adapted to it's capabilities it's really easy to use. Easy to set up and interact with in code. The layout is HTML although you can use a wrapper that makes life a little simpler if preferred.

Good little screen for the Arduino, if you have a UNO (or clone) you can load up the demos and have it working in minutes. All the demos just worked in my clone UNO.The resistive screen is a little hit and miss, it tends to need a prolonged press rather than a dab. If you watch the data from polling the position, you'll see a lot of null results and a report approx 1 in 10 to 1 in 20 times which is likely what causes the sluggish feel. The screen also isn't perfectly supported so you can feel it flex when pressing in some areas. A little better with the stylus, but does work with a fat finger.The colours and graduations are good and the provided library does everything I've asked. I'm data logging temperatures so having the ability to create a touch based menu and create charts with a few line drawing commands is very useful.The only downside is that with a UNO this screen uses almost all the pins. A5 is free which you can use in digital or analogue mode and digital pins 0 and 1 can theoretically be used but as these are shared with the USB serial interface to flash and debug your results may vary. Using a Mega eliminates this problem as there are lots of other interfaces, however you then need to manually rewire the SD card interface as the Mega pinout is different.The official screen uses a different interface which leaves a lot of pins free but is slower to refresh.Overall a good additional if you can live with the limitations (Uno) or spend a little more on a Mega.

I will be using the screen as a debugging tool for a small robot as it goes through its manoeuvres. It can display the readings clearly in text as well as graphics.Regarding the use of pins, I will be using a mega so not a problem.To connect a 2.8-inch TFT touch screen to an Arduino Uno, you’ll need a total of 12 pins. Here’s the breakdown:Data Lines (for display communication):8 digital data lines (used for reading and writing to the display).Control Lines (for display and touch):4 or 5 digital control lines (to manage display functions).Touch Screen Pins:2 digital pins for touch screen data.2 analog pins for touch screen control.Keep in mind that because of the way resistive touch screens work, you can share pins between the LCD and touch screen, allowing the entire setup to run with 10 digital and 2 analog pins12. Happy tinkering!

I find this Elegoo 2.8” LCD touch screen very high quality and have used this type of screen from Elegoo before. I purchased one from Elegoo through Amazon in February 2021. I have now purchased another one today for the same price through Amazon.Just before purchasing the first Elegoo LCD I had purchased a cheaper screen from another supplier (not through Amazon). It worked fine at first, then developed problems. The first Elegoo LCD worked OK and is still working now with no issues. When it came to needing a second screen I turned to Amazon to purchase the second screen. With the cheap screen I just got the screen! With the Elegoo screen I got the screen, a mini CD with the drivers and example software and a touch pen all securely boxed plus Elegoo website documentation backup.I saved a couple of pounds on the cheaper screen but I really lost out because it did not last long.I want to show you why I spent just a little more money through Amazon and how it saved me pounds in the long run. I took a photo of the cheap LCD and a photo of the Elegoo LCD supplied by Amazon. I spliced the two photo’s together to have just one upload. I used a photo manipulation package (GIMP) to put a red cross and a green tick to show the difference between the two.The bottom line is… I buy through Amazon to save money, not to throw it away on cheap products that do not last. I hope the photo’s that I have supplied help you in making the right choice.