3.2" TFT LCD with Touchscreen Breakout Board w/MicroSD Socket (ILI9341) (ID: 1743)Product Code: 2710
£26.99 ex VAT
Add some jazz & pizazz to your project with a color touchscreen LCD. This TFT display is really big (3.2" diagonal) bright (6 white-LED backlights) and colourful! 240x320 pixels with individual RGB pixel control, this has way more resolution than a black and white 128x64 display. As a bonus, this display has a resistive touchscreen attached to it already, so you can detect finger presses anywhere on the screen.
This display has a controller built into it with RAM buffering, so that almost no work is done by the microcontroller. The display can be used in two modes: 8-bit and SPI. For 8-bit mode, you'll need 8 digital data lines and 4 or 5 digital control lines to read and write to the display (12 lines total). SPI mode requires only 5 pins total (SPI data in, data out, clock, select, and d/c) but is slower than 8-bit mode. In addition, 4 pins are required for the touch screen (2 digital, 2 analogue). This display is wrapped up into an easy-to-use breakout board, with SPI connections on one end and 8-bit on the other. Both are 3-5V compliant with high-speed level shifters so you can use with any microcontroller. If you're going with SPI mode, you can also take advantage of the onboard MicroSD card socket to display images. (microSD card not included, but any will work)
Of course, Adafruit wouldn't just leave you with a datasheet and a "good luck!". For 8-bit interface fans they've written a full open source graphics library that can draw pixels, lines, rectangles, circles, text, and more For SPI users, There is have a library as well, its separate from the 8-bit library since both versions are heavily optimized. They also have a touch screen library that detects x, y and z (pressure) and example code to demonstrate all of it.