3.5 tft lcd shield arduino mega made in china

I designed the specific PCB for interfacing MEGA and TOUCHSCREEN. I ordered JLCPCB to produce it100k+ in-stock electronic components for online parts sourcing & PCB assembly, 24-hour rapid SMT assembly

I just installed the Arduino 1.8.10 version and kept my librairies Adafruit_GFX, MCUFRIEND_kbv, Touchscreen, LiquidCrystal_I2C, MFRC522, RF24 and ds3231

The 3.5inch TFT LCD Module is based on ILI9481 LCD driver that includes Micro SD slot. This module gives nice picture quality and works well with Arduino Uno and Arduino Mega controllers. This kind of module is not a touch screen display. No...

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This TFT LCD Screen Module , not just a LCD break but include the Touch , SD card and Flash design. So it"s a powerful extension module for your project.

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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.

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.

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.

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:

Some people say that this shield requires 3.3 [Volts] to work, but the Vcc pin connected goes to 5V and it contains a Voltage regulator. I suppose it drops the voltage from 5[V] to 3.3[V] in the middle of the back side of the screen shield (see the upper photo - U1).

After using the geometry test included in the library folder UTF Geometry mentioned on #5, and using all the drivers found in the documentation included by Henning Karlsen in a .pdf doc, I couldn"t get this shield to work.