serial tft lcd 3.2 with touch screen in stock

This 3.2″ TFT LCD is a full color display with a resolution of 240 x 320 pixels or 320 x 240 pixels depending on how it is oriented.  It uses the ILI9341 controller with SPI interface.  It also includes a resistive touchscreen with built-in XPT2046 controller.

These full color displays are large enough for many applications even when using touch.  The supplied stylus is helpful when using smaller touch targets.

Internally the display operates at 3.3V, so if using with a 5V microcontroller, be sure to include        logic level shifters on the data lines to prevent possible damage.

These are interesting modules to work with since they have full color and graphical capability with good library support and the touch capability adds a new dimension of usefulness.

These modules are breadboard friendly with a 14-pin header on the back that can be inserted into a solderless breadboard or a 14-pin female connector can be used to connect to it if the display is to be mounted.  The display is mounted on a stiff PCB that provides good support, but be sure to press on the header pins or PCB when applying pressure to insert them into a breadboard and not press on the glass to avoid possible damage.

Though these displays can seem to be a bit intimidating to use at first, just follow these steps to get up and running fairly easily.  The pin labeling is on the back only, so we have pictures with the pins labeled on both the front and back to make life a little easier.

I’m also using the Teensy 4.1 because it is currently the fastest Arduino compatible board (600MHz 32-bit vs Uno 16MHz 16-bit) and this example application of calculating Mandelbrot fractals and updating the LCD can take a long time on an Uno (77-105 seconds) and only takes about 1.25 seconds on the Teensy 4.1.  If using a 3.3V Arduino like a Due, hookup will basically be the same.

The program below is a modified version of the Mandelbrot example program that gets installed with the Adafruit_ILI9341 library.  It was pruned down in size and basic touch added.  The program just calculates the Mandelbrot set and draws it to the screen pixel-by-pixel as it is calculated.  The math is fairly intense for each pixel, so it is a good judge of the power of the MCU.  The display update speed is thus limited by the MCU that is doing the calculations and is not limited by the display itself.

After drawing the first screen, it waits until the touchscreen is touched and then it zooms in slightly and redraws the screen.  It also reports the touch location information out to the Serial Monitor window and also reports how long it took to calculate that screen.  If you want to evolve the program as an exercise, it would be interesting to use the touch coordinates to center the new zoom.

As the first in the world we do provide TFT displays with 3.2", 4.3" and 7", which are immediately running and do provide from the first minute the full functionality. These displays do require a single supply 5V= (EA eDIPTFT32: 5V= or 3.3V=) and an interface RS-232, I²C or SPI only.

Such as the touch key, bargraph, area, picture, animation, centered strings... are already built-in. You can therefore create the screen layout you want with just a few, easily understood commands. All the commands are based on coordinate specifications and can therefore be applied and moved to the nearest pixel.

Like all EA DIP modules, the EA eDIPTFT displays are simply inserted in the PCB and soldered in place. No screws, distance sleeves or cables are required, thus saves material cost and simplifies construction. This results in a saving of between 2 and 4 minutes per module during assembly!

For a standard screw mounting (e.g. together with the optional mounting bezel), the displays do come with 2 additional mounting clips for easy screw mounting.Communication via serial interface (RS-232, I²C, SPI)

Additionally to the well-proved versions with a resistive touch panel currently we do provide 2 displays with 4.3" and 7" alternatively equipped with a capacitive touch panel: EA eDIPTFT43-ATC (4.3") and EA eDIPTFT70-ATC (7").

The advantage is more transperency that leads for both sizes to again more brightness and a very contrasty display. The surface is made of glass which is hard profen against scratch, it is hygienic and resistant against all cleaning stuff. The design with its black frame grants your equipment a valuable, modern optic.

An essential detail with industrial applications ist the usability with and without hand gloves. Even when the display is put behind a 3mm glass plate it may be operated perfectly.Technology

With an extended standard temperature range of -20..+70 °C, rapid response times are guaranteed down to -20 °C. Even the essential temperature compensation is already built-in. The displays are designed for +5V single-supply operation (EA eDIPTFT32-A: 3.3~5V=).Getting started