3.2 tft lcd ili9341 touch ssd1289 arduino in stock

I use the UTFT library, and pinned right all the DB connections, RS, WR , RD, CS and Reset regarding the requirement of the library UTFT - Rinky-Dink Electronics

Contact your seller on e-Bay. Ask him what display it is supposed to emulate. Look in the Supported Display file that comes with UTFT/URTouch libraries in the documents folder. See if that display is listed and use its definition in your programs.

This is a multicolored TFT display with touchscreen and on-board SD card socket. It is based on the ILI9341controller, with a 16 bit parallel port data bus and a 4 bit control interface. This 3.2” TFT LCD touch shield is compatible with Arduino Mega and it also works with the Chipkit MAX32 board since it can operate at both 3.3 V to 5 V.

In this Arduino touch screen tutorial we will learn how to use TFT LCD Touch Screen with Arduino. You can watch the following video or read the written tutorial below.

For this tutorial I composed three examples. The first example is distance measurement using ultrasonic sensor. The output from the sensor, or the distance is printed on the screen and using the touch screen we can select the units, either centimeters or inches.

The third example is a game. Actually it’s a replica of the popular Flappy Bird game for smartphones. We can play the game using the push button or even using the touch screen itself.

As an example I am using a 3.2” TFT Touch Screen in a combination with a TFT LCD Arduino Mega Shield. We need a shield because the TFT Touch screen works at 3.3V and the Arduino Mega outputs are 5 V. For the first example I have the HC-SR04 ultrasonic sensor, then for the second example an RGB LED with three resistors and a push button for the game example. Also I had to make a custom made pin header like this, by soldering pin headers and bend on of them so I could insert them in between the Arduino Board and the TFT Shield.

Here’s the circuit schematic. We will use the GND pin, the digital pins from 8 to 13, as well as the pin number 14. As the 5V pins are already used by the TFT Screen I will use the pin number 13 as VCC, by setting it right away high in the setup section of code.

I will use the UTFT and URTouch libraries made by Henning Karlsen. Here I would like to say thanks to him for the incredible work he has done. The libraries enable really easy use of the TFT Screens, and they work with many different TFT screens sizes, shields and controllers. You can download these libraries from his website, RinkyDinkElectronics.com and also find a lot of demo examples and detailed documentation of how to use them.

After we include the libraries we need to create UTFT and URTouch objects. The parameters of these objects depends on the model of the TFT Screen and Shield and these details can be also found in the documentation of the libraries.

Next we need to define the fonts that are coming with the libraries and also define some variables needed for the program. In the setup section we need to initiate the screen and the touch, define the pin modes for the connected sensor, the led and the button, and initially call the drawHomeSreen() custom function, which will draw the home screen of the program.

So now I will explain how we can make the home screen of the program. With the setBackColor() function we need to set the background color of the text, black one in our case. Then we need to set the color to white, set the big font and using the print() function, we will print the string “Arduino TFT Tutorial” at the center of the screen and 10 pixels  down the Y – Axis of the screen. Next we will set the color to red and draw the red line below the text. After that we need to set the color back to white, and print the two other strings, “by HowToMechatronics.com” using the small font and “Select Example” using the big font.

Ok next is the RGB LED Control example. If we press the second button, the drawLedControl() custom function will be called only once for drawing the graphic of that example and the setLedColor() custom function will be repeatedly called. In this function we use the touch screen to set the values of the 3 sliders from 0 to 255. With the if statements we confine the area of each slider and get the X value of the slider. So the values of the X coordinate of each slider are from 38 to 310 pixels and we need to map these values into values from 0 to 255 which will be used as a PWM signal for lighting up the LED. If you need more details how the RGB LED works you can check my particular tutorialfor that. The rest of the code in this custom function is for drawing the sliders. Back in the loop section we only have the back button which also turns off the LED when pressed.

In order the code to work and compile you will have to include an addition “.c” file in the same directory with the Arduino sketch. This file is for the third game example and it’s a bitmap of the bird. For more details how this part of the code work  you can check my particular tutorial. Here you can download that file:

MultiLCD is an Arduino library designed for displaying characters and bitmaps on different models of Arduino LCD display shields/modules with easy-to-use and unified API. It is developed with performance in the first priority. For supporting a wide range of devices and providing additional rendering APIs, the new implementation inherits a modified version of UTFT library. That means most APIs of UTFT are accessible via MultiLCD library.

The library embeds 2 types of font for ASCII characters (5x7, 8x16) and 4 types of fonts for digits (8x8, 8x16, 16x16, 16x24). It is extremely simple for display texts and numbers on desired position on a LCD screen with the library, while very little change in code is needed to switch from one LCD module to another. For more sophisticated drawing and rendering features, UTFT APIs can be used.

MultiLCD has dumped support for monochrome LCD and OLED display since a while ago since starting to inherit UTFT library APIs. The support has been moved to MicroLCD library which shares the same APIs except for the UTFT APIs. It is also more optimized for Arduino with smaller program memory (Arduino Micro, Arduino Nano, Arduino Mini etc.). MicroLCD supports following monochrome display shields/modules:

The LED_A signal is the same as LED_BL (A= anode of the backlight LEDs, BL=Backlight, I think). RD is the "read" signal -- you never will read from the LCD, so it needs to be pulled up to digital high -- seems like for the Leonardo this will be 5V, assuming that the other digital pins are 5V.

I would recommend the "REVB" which really means 8 bit mode. So, if you"ve hooked it up as recommended in the UTFT file "UTFT_Requirements.pdf", you should use: