3.5 tft lcd for arduino 2560 ili9486 factory

Spice up your Arduino project with a beautiful large touchscreen display shield with built in microSD card connection. This TFT display is big (3.5" diagonal) bright (6 white-LED backlight) and colorful (18-bit 262,000 different shades)! 320x480 pixels with individual pixel control. As a bonus, this display has a optional resistive touch panel with controller XPT2046 attached by default and a optional capacitive touch panel with controller FT6236 attached by default, so you can detect finger presses anywhere on the screen and doesn"t require pressing down on the screen with a stylus and has nice glossy glass cover.

The pin32 (SDO) of 3.5 display module is also used by touch panel or SD card SPI interface, so we must cut off this pin to avoid conflict with the touch panel or SD card.

The shield is fully assembled, tested and ready to go. No wiring, no soldering! Simply plug it in and load up our library - you"ll have it running in under 10 minutes! Works best with any classic Arduino (Due/Mega 2560).

Of course, we wouldn"t just leave you with a datasheet and a "good luck!" - we"ve written a full open source graphics library at the bottom of this page that can draw pixels, lines, rectangles, circles and text. We also have a touch screen library that detects x,y and z (pressure) and example code to demonstrate all of it. The code is written for Arduino but can be easily ported to your favorite microcontroller!

If you"ve had a lot of Arduino DUEs go through your hands (or if you are just unlucky), chances are you’ve come across at least one that does not start-up properly.The symptom is simple: you power up the Arduino but it doesn’t appear to “boot”. Your code simply doesn"t start running.You might have noticed that resetting the board (by pressing the reset button) causes the board to start-up normally.The fix is simple,here is the solution.

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With the 3.5 Inch Full-Color Touch TFT Display Shield, you can display vibrant graphics, photos, and text on your projects, bringing them to life like never before. And with the touch functionality, you can create all sorts of interactive projects, from touch-based games and quizzes to touch-controlled home automation systems and beyond.

This blog post will take a closer look at the 3.5 full-color touch TFT display shield and its capabilities. We’ll also explore how to use it with your Arduino. So if you’re ready to add color and interactivity to your Arduino projects, read on!

First, you need to install Arduino IDE Software from its official website Arduino. Here is a simple step-by-step guide on “How to install Arduino IDE“.

my_lcd.Fill_Triangle(x_spec+i*side_len-1,y_spec+(i+1)*h_len-1,x_spec+side_len/2+i*side_len-1,y_spec+i*h_len-1,x_spec+(i+1)*side_len-1,y_spec+(i+1)*h_len-1);

my_lcd.Fill_Triangle(x_spec+i*side_len-1,y_spec+(5-i)*h_len-1,x_spec+side_len/2+i*side_len-1,y_spec+(4-i)*h_len-1,x_spec+(i+1)*side_len-1,y_spec+(5-i)*h_len-1);

my_lcd.Draw_Line(2+random(my_lcd.Get_Display_Width()-4),17+random(my_lcd.Get_Display_Height()-34),2+random(my_lcd.Get_Display_Width()-4),17+random(my_lcd.Get_Display_Height()-34));

my_lcd.Draw_Rectangle(2+random(my_lcd.Get_Display_Width()-4),17+random(my_lcd.Get_Display_Height()-34),2+random(my_lcd.Get_Display_Width()-4),17+random(my_lcd.Get_Display_Height()-34));

my_lcd.Draw_Round_Rectangle(2+random(my_lcd.Get_Display_Width()-4),17+random(my_lcd.Get_Display_Height()-34),2+random(my_lcd.Get_Display_Width()-4),17+random(my_lcd.Get_Display_Height()-34),5);

my_lcd.Draw_Triangle(2+random(my_lcd.Get_Display_Width()-4),17+random(my_lcd.Get_Display_Height()-34),2+random(my_lcd.Get_Display_Width()-4),17+random(my_lcd.Get_Display_Height()-34),2+random(my_lcd.Get_Display_Width()-4),17+random(my_lcd.Get_Display_Height()-34));

my_lcd.Fill_Round_Rectangle(my_lcd.Get_Display_Width()/2-1-120+1, my_lcd.Get_Display_Height()/2-1-60+1, my_lcd.Get_Display_Width()/2-1+120-1, my_lcd.Get_Display_Height()/2-1+60-1,5);

It’s now time to test the circuit! Once you upload the code and the circuit gets the power, it will start the TFT display and shows the messages according to the given code.

The code uses two libraries: LCDWIKI_GUI.h and LCDWIKI_KBV.h. The LCDWIKI_GUI.h library is the core graphics library, and the LCDWIKI_KBV.hlibrary is hardware-specific.

The code defines a function called “show_text(),” which displays text on the TFT display. This function starts by initializing a variable “time_start” with the current time in microseconds. This variable is later used to calculate how long the function took to execute.

Then the code sets the draw color to a blue color using the Set_Draw_color()function, and then it fills a rectangle with this color at the top of the display by calling theFill_Rectangle() function. Next, the code sets the text color to green, the text size to 1, and the text mode to 1, it prints a string “* Universal Color TFT Display Library *” at the center of the display using the Print_String() function.

The code then sets the draw color to a gray color and fills a rectangle at the bottom of the display using the Fill_Rectangle() function. After that, it sets the text color to white, the text size to 1, and the text mode to 1, and then it prints a string “http://abcdefghijklmnopq.1234567890.com” which is a URL at the center of the bottom of the display using the Print_String()function.

The code also defines a function called “show_triangle_function()” used to display triangles on the TFT display. Like the previous function, this function also starts by initializing a variable “time_start” with the current time in microseconds, which will be used later to calculate how long the function took to execute.

After that, the code uses a for-loop to draw horizontal lines on both sides of the center horizontal line and another for-loop to draw vertical lines on both sides of the center vertical line.

Next, the code prints the string “sin” at the display’s top left corner, then sets the draw color to a light blue. It uses a for-loop to draw a sin curve on display by plotting pixels at different y-coordinates calculated by applying the sin function to the x-coordinates of the pixels using theDraw_Pixel() function.

Then, the code prints the string “cos” below the “sin” string, and then it sets the draw color to a green color, and it uses another for-loop to draw a cos curve on display by plotting pixels at different y-coordinates calculated by applying the cos function to the x-coordinates of the pixels.

The code prints the string “tan” below the “cos” string, and then it sets the draw color to a yellow color, and it uses another for-loop to draw a tan curve on display by plotting pixels at different y-coordinates calculated by applying the tan function to the x-coordinates of the pixels.

The show_sinewave() function starts by initializing a variable “time_start” with the current time in microseconds, which will be used later to calculate how long the function took to execute. Then it declares an array “buf” of size my_lcd.Get_Display_Width()-2, two variables “x” and “i” and “y” variable, and two variables t, k. It also checks if the width of the display is 320 or not. If it is 320, the t value is 20, and k is 1.1; otherwise, t is 15, and k is 0.7.

Then it uses a for-loop to draw the sinewave curve by plotting pixels at different y-coordinates calculated by applying the sin function to the x-coordinates of the pixels, using theDraw_Pixel() function. The x-coordinate is incremented inside the loop and is set back to 1 after it reaches to Get_Display_Width()-1. It also uses an if-else statement to change the color of the pixel. It also stores the last plotted y-coordinate in the buf array.

Then it uses a for-loop to draw five rectangles with different colors on display using Fill_Rectangle() function. The color of each rectangle is selected using a switch-case statement, and the values of x_spec and y_spec are used to draw the rectangles in the center of the screen. It also uses i value to shift the next rectangle toward the right-down direction.

The show_text()function displays text on the LCD screen. The show_triangle_function() function draws crosshairs and sin, cos, and tan lines on the LCD screen. It starts by drawing blue crosshairs in the middle of the screen using the Draw_Fast_VLine and Draw_Fast_HLine functions. Then it draws sin, cos, and tan lines using the Draw_Pixel function, with the color of each line being different. Finally, it writes “sin,” “cos,” and “tan” in other colors as well.

The show_sinewave() function draws a sinewave on the LCD screen. It starts by drawing blue crosshairs in the middle of the screen. Then it uses a for loop to draw the sinewave, starting at x=1 and incrementing x with each iteration of the loop. It uses the sin() function to determine the y value of each pixel and the Draw_Pixel function to draw the pixel.

The show_fill_rectangle() function draws filled rectangles on the screen. It starts by calculating the side length of the rectangles and the x and y coordinates of the rectangles. Then, it uses a for loop to draw five rectangles, with the color of each rectangle being different.

The show_grid_lines()function draws grid lines on the LCD screen. It starts by drawing red diagonal lines using the Draw_Line function. Then, it draws blue diagonal lines using the Draw_Line function as well.

The show_random_pixels() function draws random pixels on the screen. It starts by using a for loop to draw 10,000 pixels on the screen, with the color of each pixel.

The function show_endis called after all the other test functions have run and are used to display the end screen on the LCD. It takes one parameter, run_time, which is the total time taken for the tests to run in microseconds. The function starts by filling the entire screen with a light blue color using the Fill_Screen method. Then it uses the Fill_Round_Rectangle function to draw a filled red rounded rectangle in the center of the screen.

The text color is then set to yellow, and the Print_String method is used to print “Total runtime(us): ” on the screen. The text color is then set to green, and the Print_Number_Int function is used to print the total runtime passed as a parameter to the function. The function finishes by calling the delay function 10 seconds before the test restarts.

We hope you have found this Interfacing 3.5 INCH Full-Color Touch TFT Display Shield with Arduino Circuit very useful. If you feel any difficulty in making it feel free to ask anything in the comment section.

TFT LCDs are the most popular color displays – the displays in smartphones, tablets, and laptops are actually the TFT LCDs only. There are TFT LCD shields available for Arduino in a variety of sizes like 1.44″, 1.8″, 2.0″, 2.4″, and 2.8″. Arduino is quite a humble machine whenever it comes to process or control graphics. After all, it is a microcontroller platform, and graphical applications usually require much greater processing resources. Still, Arduino is capable enough to control small display units. TFT LCDs are colorful display screens that can host beautiful user interfaces.

Most of the smaller TFT LCD shields can be controlled using the Adafruit TFT LCD library. There is also a larger TFT LCD shield of 3.5 inches, with an ILI9486 8-bit driver.

The Adafruit library does not support the ILI9486 driver. Actually, the Adafruit library is written to control only TFT displays smaller than 3.5 inches. To control the 3.5 inch TFT LCD touch screen, we need another library. This is MCUFRIEND_kbv. The MCUFRIEND_kbv library is, in fact, even easier to use in comparison to the Adafruit TFT LCD library. This library only requires instantiating a TFT object and even does not require specifying pin connections.

TFT LCDs for ArduinoUser interfaces are an essential part of any embedded application. The user interface enables any interaction with the end-user and makes possible the ultimate use of the device. The user interfaces are hosted using a number of devices like seven-segments, character LCDs, graphical LCDs, and full-color TFT LCDs. Out of all these devices, only full-color TFT displays are capable of hosting sophisticated interfaces. A sophisticated user interface may have many data fields to display or may need to host menus and sub-menus or host interactive graphics. A TFT LCD is an active matrix LCD capable of hosting high-quality images.

Arduino operates at low frequency. That is why it is not possible to render high-definition images or videos with Arduino. However, Arduino can control a small TFT display screen rendering graphically enriched data and commands. By interfacing a TFT LCD touch screen with Arduino, it is possible to render interactive graphics, menus, charts, graphs, and user panels.

Some of the popular full-color TFT LCDs available for Arduino include 3.5″ 480×320 display, 2.8″ 400×200 display, 2.4″ 320×240 display and 1.8″ 220×176 display. A TFT screen of appropriate size and resolution can be selected as per a given application.

If the user interface has only graphical data and commands, Atmega328 Arduino boards can control the display. If the user interface is a large program hosting several menus and/or submenus, Arduino Mega2560 should be preferred to control the TFT display. If the user interface needs to host high-resolution images and motions, ARM core Arduino boards like the DUE should be used to control the TFT display.

MCUFRIEND_kbv libraryAdafruit TFT LCD library supports only small TFT displays. For large TFT display shields like 3.5-inch, 3.6-inch, 3.95-inch, including 2.4-inch and 2.8-inch TFT LCDs, MCUFRIEND_kbv library is useful. This library has been designed to control 28-pin TFT LCD shields for Arduino UNO. It also works with Arduino Mega2560. Apart from UNO and Mega2560, the library also supports LEONARDO, DUE, ZERO, and M0-PRO. It also runs on NUCLEO-F103 and TEENSY3.2 with Sparkfun Adapter. The Mcufriend-style shields tend to have a resistive TouchScreen on A1, 7, A2, 6 but are not always in the same direction rotation. The MCUFRIEND_kbv library can be included in an Arduino sketch from the library manager.

The 3.5-inch TFT LCD shield needs to be plugged atop the Arduino board. The Mcufriend-style shields are designed to fit into all the above-mentioned Arduino boards. The shields have a TFT touch screen that can display colorful images and interfaces and a micro SD card reader to save images and other data. A 3.5-inch TFT LCD touch screen has the following pin diagram.