tft lcd display touch panel spi ili9341 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.

In general, it is best to operate the display off of 5V to ensure enough power is available.  Be careful of trying to operate the display from the built-in 3.3V available on Arduino and similar microcontrollers since these power sources often have limited current capability and may overheat.

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.

Connect the SPI and control lines for the display.  In our example we are using hardware SPI as it gives the best performance.   The SPI pin location will depend on the MCU you are using.

If you just want to check the display functionality and speed, the ‘graphicstest’ example program installed as part of the Adafruit_ILI9341 library is a good one to run.

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.

This TFT module is the perfect display for your ESP8266/ ESP32 projects. With a resolution of 320×240 pixels and a display size of 2.4″ it offers enough space to display a wide variety of information. It can display up to 262’144 colors (full-color mode, 18bit color depth) and works with 3.3V which matches your ESP8266/ ESP32 operation voltage.

ER-TFT022-1 is 240x320 dots 2.2" color tft lcd module display with ILI9341 controller,optional capacitive touch panel with controller FT6236U and resistive touch panel,superior display quality,super wide viewing angle and easily controlled by MCU such as 8051, PIC, AVR, ARDUINO ARM and Raspberry PI.It can be used in any embedded systems,industrial device,security and hand-held equipment which requires display in high quality and colorful image.It supports 8080 8-bit,9-bit,16-bit,18-bit parallel,3-wire,4-wire serial spi interface. FPC with zif connector is easily to assemble or remove.Lanscape mode is also available.

Of course, we wouldn"t just leave you with a datasheet and a "good luck!".Here is the link for 2.2"TFT Shield with Libraries, Examples.Schematic Diagram for Arduino Due,Mega 2560 and Uno.For 8051 microcontroller user,we prepared the detailed tutorial such as interfacing, demo code and Development Kit at the bottom of this page.