Display for arduino UNO


I'm really new to arduino and I'm having some problems figuring out how to make work the project I am working on. I would like to have a display that shows different pictures depending on the information I receive from various sensors. Everything works fine for now and I can activate LEDs to show what I would like to show with the images.

The problem is that I'm a bit lost when I start to look for a display that works with arduino UNO, because I wanted it to be at least 3.5", but I can only find the ones that work with arduino MEGA.

Any hints about where I can start looking for this things?

How about this: http://www.ebay.com/itm/3-5-inch-TFT-lcd-shield-for-Arduino-UNO-/301355496326?pt=LH_DefaultDomain_0&hash=item462a2ff386

Okay, so they exist but that does not mean its a good choice. Consider that you have only 32kb of flash in an Uno, that is why you don’t find many large screens for them. A large pixel count means large memory requirements for images and the larger fonts you’ll want to use. Many times it is just impossible to squeeze everything needed into 32kb. Sure, you can add SD card or external flash memory but it just adds more software and can slow things down. All in all, the additional cost for a Mega or better yet a Due is usually worth it in the end when your Uno can’t meet the demands of a larger lcd screen.

As for the screen on eBay, I have no connection to the seller and personally, I don’t like his feedback score but he does say that he provides demo code. Honestly, $6 is not a lot to lose, your time is the more important factor to me. Cheap always has hidden additional costs. Buyer beware.

Try with SmartGPU2, this TFT work with only 5-pin: 3.3V, GND, TX, RX, reset.


Boards: Arduino UNO, Arduino Due and Arduino MEGA Flavors: 2.4", 3.5", 4.3"

Relevant features: multi-JPG or multi-BMP images, videoplayer, audioplayer, micro-SD card reader (up to 32 Gb :grin:) and RTC

SmartGPU 2 3.5": Slider-BMP and graphic test SmartGPU 2 3.5": Video player

Thank you for your help guys.

The display that TFTLCDCyg suggested looks pretty good, I think I'll go for that one (it's quite expensive though...27€ for the shipping...).