3.2 tft lcd shield for arduino mega 2560 schematic supplier

Spice up your Arduino project with a beautiful large touchscreen display shield with built in microSD card connection. This TFT display is big (3.2" diagonal) bright (5 white-LED backlight) and colorful (18-bit 262,000 different shades)! 240x320 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 FT6206 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 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 (UNO/Due/Mega 2560).

This display shield has a controller built into it with RAM buffering, so that almost no work is done by the microcontroller. You can connect more sensors, buttons and LEDs.

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.

The display has Arduino written on it, and one should assume that there are saner ways of using it than you propose. I hesitate to buy deeply into this circus, but it rather looks like an absurd exercise in re-inventing the wheel, and I think you should look at finding a shield that enables the display to be plugged straight into a Mega.

Life is much easier when you buy a ready-made Shield and learn how to plug it into a ready-made Arduino. Adafruit, Waveshare, Seeed, ... design shields properly. Mcufriend design badly.

I puzzled some hours with exactly the same hardware setup and made a quick & dirty, but successfully test script, combining LCD, Touch and SD Card Features.

Begin by carefully starting the rear connector of the TFT shield onto the Arduino Mega. Go slowly and ensure that all pins are inserted correctly and are straight.

In order to use 3.2″ TFT lcd  Shield , We must have the libraries. So you can download  (UTFT Library) and (URTouch Library) install the library by extracting that zipped file in the library folder as shown below.

SainSmart 3.2" 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 multifunctional module for your project. The Screen include a controller SSD1289, it"s a support 8/16bit data interface , easy to drive by many MCU like STM32 ,AVR and 8051. It is designed with a touch controller in it . The touch IC is ADS7843 , and touch interface is included in the 40 pins breakout. It is the version of product only with touch screen and touch controller.

SainSmart 3.2 TFT LCD shield works in 3.3V voltage level and you need to use cables to connect with Arduino Mega. And this shield can help you out of the bothers to use other cables. You just need to plug the module to Mega through this shield.

1.SainSmart 3.2" TFT LCD Display is a LCD touch screen module. It is a powerful and multifunctional module for your project. The Screen include a controller SSD1289, it"s a support 8/16bit data interface, easy to drive by many MCU like STM32, AVR and 8051. It is designed with a touch controller in it. The touch IC isXPT2046

7. This TFT LCD Screen Module, 40pins interface, not just a LCD screen but include the Touch, SD card and Flash design. So it’s a powerful extension module for your project.

1.     SainSmart TFT LCD adjustable shield is 100% compatible for the Mega2560 to expend more Pins and make the connection between the Mega 2560 and 3.2"LCD display easier.

2.     SainSmart 3.2 TFT LCD module works in 3.3V voltage level and you need to use cables to connect with SainSmart Mega. And this shield can help you out of the bothers to use other cables. You just need to plug the module to Mega through this shield.

3.     This shield supports both 16 bit modes. And Mega board has enough pins for using SD card and touch function at the same time. It also has an adjustable button for contrast of the LCD display.

§. When push buttons are touched, the button statuses (ON / OFF) will be written to the Arduino Mega 2560 via Ethernet Shield and be stored in transmitted buffer.

§. Arduino Mega 2560 will transmit these button statuses to PLC S7-300 via Profibus communication (RS-485 module). At PLC side, as hardware configuration in previous step, button statuses will be received at PLC"s input I0.0 ~ I0.7.

In this article, you will learn how to use TFT LCDs by Arduino boards. From basic commands to professional designs and technics are all explained here.

There are several components to achieve this. LEDs,  7-segments, Character and Graphic displays, and full-color TFT LCDs. The right component for your projects depends on the amount of data to be displayed, type of user interaction, and processor capacity.

TFT LCD is a variant of a liquid-crystal display (LCD) that uses thin-film-transistor (TFT) technology to improve image qualities such as addressability and contrast. A TFT LCD is an active matrix LCD, in contrast to passive matrix LCDs or simple, direct-driven LCDs with a few segments.

In Arduino-based projects, the processor frequency is low. So it is not possible to display complex, high definition images and high-speed motions. Therefore, full-color TFT LCDs can only be used to display simple data and commands.

There are several components to achieve this. LEDs,  7-segments, Character and Graphic displays, and full-color TFT LCDs. The right component for your projects depends on the amount of data to be displayed, type of user interaction, and processor capacity.

TFT LCD is a variant of a liquid-crystal display (LCD) that uses thin-film-transistor (TFT) technology to improve image qualities such as addressability and contrast. A TFT LCD is an active matrix LCD, in contrast to passive matrix LCDs or simple, direct-driven LCDs with a few segments.

In Arduino-based projects, the processor frequency is low. So it is not possible to display complex, high definition images and high-speed motions. Therefore, full-color TFT LCDs can only be used to display simple data and commands.

After choosing the right display, It’s time to choose the right controller. If you want to display characters, tests, numbers and static images and the speed of display is not important, the Atmega328 Arduino boards (such as Arduino UNO) are a proper choice. If the size of your code is big, The UNO board may not be enough. You can use Arduino Mega2560 instead. And if you want to show high resolution images and motions with high speed, you should use the ARM core Arduino boards such as Arduino DUE.

In electronics/computer hardware a display driver is usually a semiconductor integrated circuit (but may alternatively comprise a state machine made of discrete logic and other components) which provides an interface function between a microprocessor, microcontroller, ASIC or general-purpose peripheral interface and a particular type of display device, e.g. LCD, LED, OLED, ePaper, CRT, Vacuum fluorescent or Nixie.

The LCDs manufacturers use different drivers in their products. Some of them are more popular and some of them are very unknown. To run your display easily, you should use Arduino LCDs libraries and add them to your code. Otherwise running the display may be very difficult. There are many free libraries you can find on the internet but the important point about the libraries is their compatibility with the LCD’s driver. The driver of your LCD must be known by your library. In this article, we use the Adafruit GFX library and MCUFRIEND KBV library and example codes. You can download them from the following links.

You must add the library and then upload the code. If it is the first time you run an Arduino board, don’t worry. Just follow these steps:Go to www.arduino.cc/en/Main/Software and download the software of your OS. Install the IDE software as instructed.

First you should convert your image to hex code. Download the software from the following link. if you don’t want to change the settings of the software, you must invert the color of the image and make the image horizontally mirrored and rotate it 90 degrees counterclockwise. Now add it to the software and convert it. Open the exported file and copy the hex code to Arduino IDE. x and y are locations of the image. sx and sy are sizes of image. you can change the color of the image in the last input.

Upload your image and download the converted file that the UTFT libraries can process. Now copy the hex code to Arduino IDE. x and y are locations of the image. sx and sy are size of the image.

In this template, We converted a .jpg image to .c file and added to the code, wrote a string and used the fade code to display. Then we used scroll code to move the screen left. Download the .h file and add it to the folder of the Arduino sketch.

In this template, We used sin(); and cos(); functions to draw Arcs with our desired thickness and displayed number by text printing function. Then we converted an image to hex code and added them to the code and displayed the image by bitmap function. Then we used draw lines function to change the style of the image. Download the .h file and add it to the folder of the Arduino sketch.

In this template, We added a converted image to code and then used two black and white arcs to create the pointer of volumes.  Download the .h file and add it to the folder of the Arduino sketch.

In this template, We added a converted image and use the arc and print function to create this gauge.  Download the .h file and add it to folder of the Arduino sketch.

while (a < b) { Serial.println(a); j = 80 * (sin(PI * a / 2000)); i = 80 * (cos(PI * a / 2000)); j2 = 50 * (sin(PI * a / 2000)); i2 = 50 * (cos(PI * a / 2000)); tft.drawLine(i2 + 235, j2 + 169, i + 235, j + 169, tft.color565(0, 255, 255)); tft.fillRect(200, 153, 75, 33, 0x0000); tft.setTextSize(3); tft.setTextColor(0xffff); if ((a/20)>99)

while (b < a) { j = 80 * (sin(PI * a / 2000)); i = 80 * (cos(PI * a / 2000)); j2 = 50 * (sin(PI * a / 2000)); i2 = 50 * (cos(PI * a / 2000)); tft.drawLine(i2 + 235, j2 + 169, i + 235, j + 169, tft.color565(0, 0, 0)); tft.fillRect(200, 153, 75, 33, 0x0000); tft.setTextSize(3); tft.setTextColor(0xffff); if ((a/20)>99)

In this template, We display simple images one after each other very fast by bitmap function. So you can make your animation by this trick.  Download the .h file and add it to folder of the Arduino sketch.

In this template, We just display some images by RGBbitmap and bitmap functions. Just make a code for touchscreen and use this template.  Download the .h file and add it to folder of the Arduino sketch.

The speed of playing all the GIF files are edited and we made them faster or slower for better understanding. The speed of motions depends on the speed of your processor or type of code or size and thickness of elements in the code.

Say goodbye to messy cables and clueless pluging/unpluging! This  Sensor Shield  is a powerful expansion shield  for Arduino Mega Due. It is large enough to carry up to 3 Xbee slots, 1 microSD slot and shield headers for most Arduino shields on the market. Besides, we also added a prototyping area for convenience and adaptability for customized projects.

The breakouts for Digital pins are 14 to 53, Analog pins 6 to 15 and PWM pins 2 to 9. All pinout is a Gravity interface which allows plug-play of Gravity series sensors.  And standard Arduino UNO pinout is reserved to stack more Arduino Shield. This shield can really be a major communications hub or "Mothership" for your Arduino, robot or IOT projects.

Each Xbee socket is connected to a different pin. Xbee socket 1 is connected to the main Serial port. While Xbee socket 2 to Serial1() and Xbee socket 3 to Serial2() on Arduino IDE.

The board has an integrated voltage regulator for 3.3v, a convenient reset push button topside and the standard on board LED that you can use for testing or debugging.

A external power connector for servos, as in other products of this family. If you need to power a large array of servos, use the screw terminals to connect your power supply and just drive it directly from your Mega.

The microSD will be great if you are planning on doing sensor monitoring for research and data gathering for your algorithms, increase your automatic systems performance with accumulated data.

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The display demand for every project is unique, a project may require just a simple, single character OLED display, while another project may require something bigger, all based on the function the display is to perform. For this reason, as a maker or electronics hobbyist, anyone needs to know how to work with as many displays as possible, that’s why today, we will take a look at how to use the super cheap, 3.2″ color TFT display with Arduino.

For this tutorial, we will use the 3.2″ TFT display from banggood. The display which is based on the HX8357B LCD Controller, supports 16-wire DataBus interface and comes with 262K color at 480 x 320 resolution. The module includes an SD card socket, an SPI FLASH circuit and a 5V-3.3V power and Logic Level conversion circuit which makes it easy to use with any microcontroller that uses either 5v or 3.3v  logic voltage level. The module can be directly inserted into an Arduino Mega or Due board.

To demonstrate how the display works, we will use the UTFT LCD library for Arduino to display some images and text on the display including an animated graph. All these will show how the display could be used for something like an oscilloscope.

These components can each be bought via the links attached. The 3.2″ TFT display, as at the time I bought it was listed on the website as a 3″ display but after buying and measuring, the size of the display is 3.2″.

The display comes in a shield form, which means it can be plugged directly into the Arduino with which it is going to be used, as such, no schematic is needed. Plug the display into your Arduino Mega or Due as shown in the image below.

To achieve the goals of this tutorial, we will use a simple sample code attached to the UTFT library. The UTFT library is a library created to facilitate easy interaction between a microcontroller and several LCD displays. Unfortunately, the latest versions of the UTFT library has no support for the HX8357B LCD controller which is used to our 3.2″ TFT display. To go round this hurdle, we will be installing a previous version of the library on the Arduino IDE.

The wonderful library written by Henning Karlsen can be downloaded from the link below. The libraries are pre-built for each Arduino board so choose the right one that matches the board you are using from the link below.

Use your favorite library installation method to install the library after downloading and launch an Instance of the Arduino IDE. With the IDE opened, click on file, select examples, select UTFT then select the Display Demo or the UTFT_Demo_480x320 example.

We will attempt to do a brief explanation of the code. The code starts by setting the speed (the wait variable) at which it runs to 2000. This speed can be reduced to zero so the demo can play slowly. After this, we include the utft library and invoke the custom library for the for Arduino Due.

Next, we specify the initial color for the fonts to be used. It should be noted that to use custom fonts, they must be pre-loaded into the library by editing the User_Setup.h file in the library.

with that done, we proceed to the void setup() function. Under the setup() function, we initialize the LCD using the init command and we ensure the LCD display is on landscape using the set rotation function with a value of 1.

Next is the void loop() function which I personally now use as a reference for functions and how to use them. The void loop function uses quite a number of functions which were used to achieve different effects in the demo. The functions are easy to use and from their name, one can easily tell what they do.

Upload the code to your Arduino board and you should see the display come up after a few minutes, displaying texts, and different other graphics. A view of the display in action is shown in the image below.

You can use either of the two Arduino boards mentioned above for this tutorial. The Arduino due is faster than the Arduino mega so it will run the code faster than the mega. For instance, on the Arduino Due, the code took 23 seconds to get to the end while on the Arduino Mega, it took 44 seconds to get to the end confirming the speed of the Due.

The answer of course depends on the exact model of the TFT that we have on hand. The below instructions apply to a generic 3.2″ TFT with wide aspect ratio and resolution of 240 x 400 that I got off of Ebay.

This is nice, but I want to use a standard 40-pin ribbon cable which I have left over from an old computer, and its conductor numbering is a little different. At first I thought I’d try to make sense of it as I went but it didn’t take long for me to realize that it would actually save me time if I made a “conversion table”. So I came up with what you see here:

For example, pin 2 (the second pin on the flex cable looking at it from the left) corresponds to the DB0 signal which should be connected to the D37 pin on the Arduino MEGA (or Due). Note that the connections are made according to UTFT’s documentation and are applicable specifically to UTFT.

So we have to connect signals D0 through to D15 to the necessary digital pins. Then we also have to connect pins RS, WR, CS and REST to whichever pins we like (we must declare these pins in our sketch, see UTFT documentation). Pin 11 is RD and it must be pulled high, which means connecting it to +3.3V.  Pin 37 is the backlight illumination which means it must also be connected to +3.3V. This leaves pin 1 which must be connected to ground and pin 3 which must be connected to Vcc which in our case is 5V.

Note that I have not really gotten around to using the touchscreen capabilities or the SD reader, so I have not connected them to my Arduinos. It shouldn’t be difficult though.

Now, there is one more thing that I should point out and it is very important. The Arduino MEGA is using 5V logic while the TFT is expecting 3.3V logic. This means that if you connect the D0-D15 and RS, WR, CS, REST lines directly to the MEGA you will most likely damage the TFT. You need to connect a 10K resistor in series with each and every one of the lines. That will bring the voltage down to acceptable levels. Do not forget to do this!

Put the screen(3.2 inch screen schematic) into shield (TFT01-3.2 shield schematic) first, then connect the shield to Arduino, it is quite straight forward.

3)Download and install UTFT ,URTouch ,SdFat,UTFT_Buttons and UTFT_SdRaw library file from following link and copy them into Arduino library folder. ( i.e. D:\arduino ide\Arduino 1.6.9\libraries )

Download the test program (http://www.kookye.com/download/3.2inchscreen/3.2inchtouchscreentest.zip), upzip and open it,then choose the correct board and port.

You will see the code in each sketch: UTFT myGLCD(CTE32_R2, 38, 39, 40, 41).The first value of code refer to the mode of LCD screen. Please write CTE32_R2 or ILI9341_16 if you LCD screen is ILI9341; Please write CTE32 if you LCD screen is SSD1289;

When you use the others LCD screen from the others seller, you could check the PDF instruction in documentation file or open the UTFT.h file to find the correct code.The controller mode could be identifitied by the back mark as the following pictures.

Note: In the project of testing the SD card，please insert the SD card into the slot in back of the 3.2’’ LCD screen. The format of files in SD card must be the FAT32, you need to put the test files(i.e. ICONS.RAW,WAIT4GPS.RAW,SK45) into the SD card root directory.

2.8" TFT Touch Shield is an Arduino / Arduino Mega compatible multicolored TFT display with a 4-wire resistive touch screen. It includes an Arduino shield compatible footprint for attachment. The TFT driver is based on professional Driver IC and with 8 bit data and 4 bit control interface.

The TFT library provides the following Application Programming Interfaces(API). The library makes use of direct access to PORT registers instead of Arduino APIs. This is to increase the speed of communication between MCU and TFT. At present, the library supports Arduino, Arduino Mega (1280 or 2560) and Seeeduino ADK Main Board compatible boards. In Mega the 8bit data port of TFT is distributed to different pins belonging to different ports. This decreases the speed of graphics drawing when compared to Arduino. The choice of port pins are purely based on Arduino / Mega port pin arrangement.

TFT Touch Shield uses the Adafruit Touch Screen Library. To understand the principle behind resistive touch screen refer External Links. In short, a 4-wire resistive touch screen provides two voltage divider each for X and Y axis. By applying proper voltages for each axis and scanning the ADC values the position of the touch can be detected. These values are always prone to noise. Hence a digital filter is used.

The Raw ADC value has to be converted to Pixel Co-ordinates. This is done with map function. This mapping changes for v0.9 and v1.0. The demo applications already takes care of this mapping.

The parameters TS_MINX, TS_MAXX, TS_MINY and TS_MAXY actually decides the extreme ends of the touch screen and actually forms the calibration parameters.