ili9325 tft lcd touchscreen display module in stock

This is a multicolored TFT LCD display with touchscreen and on-board SD card socket and 74HC245D. It is based on the ILI9325 controller and also compatible with ILI9341. This 2.4” TFT LCD Touch module is compatible with Arduino UNO and Arduino Mega boards and also works with Chipkit UNO32 and Simplecortex boards, since it can be operated at 3.3 V or 5 V.

We’ve done quite a number of tutorials on the use of several displays with Arduino boards and today we will add another tutorial to that list. We will look at the ILI9325 based 2.8″ touchscreen display shown below and how it can be used with the Arduino to deliver a better user experience for your projects.

For today’s tutorial, we will use the ILI9325 driver based, 2.8″ display from Geekcreit. The display comes as a shield so it’s ready to be used for Arduino based projects. It is an 18-bit color display with a total of 262,000 different color shades. The display has a resolution of 240 x 320 pixels with individual pixel control.

Today’s project involves some very simple tasks which we will use to demonstrate the capabilities of the display. We will create a button which when touched, will trigger the Arduino to display a message on the screen. At the end of today’s tutorial, we would have gone through how to create a user interface on the touchscreen, how to detect when the screen is touched and how to display data on the screen.

The 2.8″ TFT display used for this project comes as a shield with the form factor of the Arduino Uno. This makes it easy to connect the shield to boards like the Uno, Mega and Due, as all we need to do, is plug it directly into the board, eliminating all the mess made by wires.  Plug the display to the Arduino as shown in the image below.

The fact that the display comes as a shield becomes a disadvantage when its used with the Arduino Uno as it occupies almost all the pins leaving just 2 digital pins and one analog pin for other uses. This can however, be overcome by using either the Arduino Mega or Due as they both work perfectly well with the display.

The code for this tutorial is heavily reliant on a modified version of Adafruit’s TFT LCD,GFX and touchscreen libraries. These libraries can be downloaded from the links attached to them.

As mentioned earlier, our focus for this tutorial will be to demonstrate, how UI can be created on the display and interpret touches to trigger actions. To achieve this, we will develop a simple sketch which displays a Youtube subscribe button. When the subscribe button is pressed, a text is displayed on the screen.

Calibration needs to be done before the touchscreen functionality of this display can be used. To calibrate the screen, we upload the code and Open the Serial Monitor to obtain the values of the display’s edges. Click (touch) on the top left corner of the display and write down the X and Y values displayed on the serial monitor. Then we edit the code to reflect those values. The X value goes to the TS_MAXX variable and the Y value goes to the TS_MAXY variable. Next, click on the bottom right corner of the display and enter the values displayed on the serial monitor for the TS_MINX and TS_MINY variables. With this done our display is now calibrated and ready for use.

Next, we declare the colors to be used with their hexadecimal values and we create an object of the Adafruit TFTLCD library, indicating the variables used to represent the pins of the Arduino to which the display is connected.

We start by initializing the serial monitor and the display. After this, we set the orientation of the LCD and fill the screen with a black color to serve as the background.

next, we draw a white frame on the display, set the text cursor to the desired location, change its color to white, and print the “Hello” text on the screen. By following the same procedure, we display the red YouTube text as well.

With the setup function all done, we move to the loop function, the algorithm in operation for the loop section is simple, each time the user clicks on the screen, we convert the point coordinates of the touch point into pixels using the Map function. After conversion, if that point is inside the red rectangle area, it means that the user has pressed the button, so we disable the button by setting this variable to false and we clear the screen so to display the “Thank you for Subscribing” message on the screen.

Copy the code above and create a new Arduino sketct. Ensure the libraries are installed and upload the code to the setup described under the schematics section. Once the upload is complete, you should see the display come up as shown below.

Arduino - Touch Screen TFT LCD Tutorial (First Review Before the Next Projects): In this tutorial we will learn how to programming the TFT LCD Touch Screen. I used 2.8 TFT Touch…

I have the afore mentioned display and i"ve been looking for help getting it up and running for some time. I found another person in the same situation as me, please help us:

I have been scouring the web to find all different bits of information for the Sainsmart 2.8 inch touch display with no avail on instructions on how to actually make it work.

I assumed that being it has a compatible 40 pin header that all I needed to do was put a 40 pin cable on it and install software and the os would pick up the display by default.

SainSmart 2.8" TFT LCD Display is a LCD touch screen module. It has 40pins interface and SD card and Flash reader design. It is a powerful and mutilfunctional module for your project.The Screen include a controller ILI9325, it"s a support 8/16bit data interface , easy to drive by many MCU like arduino families，STM32 ,AVR and 8051. It is designed with a touch controller in it . The touch IC is XPT2046 , and touch interface is included in the 40 pins breakout. It is the version of product only with touch screen and touch controller.

Voltage type: 5v or 3v voltage input voltage，input is selectable. Because TFT can only work under 3.3 V voltage, so when the input voltage VIN is 5V, need through the 3.3 V voltage regulator IC step down to 3.3V , when the input voltage of 3.3 V, you need to use the zero resistance make J2 short , is equivalent to not through the voltage regulator IC for module and power supply directly.(Click here)

So I contacted them and they sent me out the documentation etc. As I read all the documentation there was not one mention of how to get the PI to recognize the display. So I contacted them again and the response was to try element14.com. I went there and again no avail.

I am hoping that this is the last stop and that someone might have instructions on how to get the pi to recognize the display. Currently when hooked up the screen lights up, but that is about it, no output what so ever. The only output is what is going through the hdmi port to the tv.