2.8 tft lcd touch shield for arduino library factory

2023-01-03 12:32:11

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2.8 tft lcd touch shield for arduino library factory

TFT Touch Shield V2.0 is a resistive touch screen, compatible with Arduino/Seeeduino/Arduino Mega/SAMD21 platforms. It can be used as display device or sketch pad. Compared with the previous version, 2.8""TFT Touch Shield V1.0, we upgraded the screen driver to a more professional chip, ILI9341 driver, providing different pin-saving SPI communication without sacrificing the data transmitting speed. Due to the communication method change, programs developed for the original version are needed for modification before being transplanted to the new version. With a SD card module integrated on this shield, this shield reserves capability for other expansions of your project.

Click to download the Touch Screen Driver，then please click on below button to download the library and install it, if you don"t know how to install an Arduino library, please refer to the tutorial (HOW TO INSTALL AN ARDUINO LIBRARY).

We recommend using Seeed_Arduino_LCD with internal flash chips larger than 128k. If you have a smaller flash device, I recommend using the TFT_Touch_Shield_V2.

Step1. Download and Install Seeed_Arduino_LCD. if you don"t know how to install an Arduino library, please refer to the tutorial (HOW TO INSTALL AN ARDUINO LIBRARY).

2.8 tft lcd touch shield for arduino library factory

Spice up your Arduino project with a beautiful large touchscreen display shield with built in microSD card connection. This TFT display is big (2.8" diagonal) bright (4 white-LED backlight) and colorful (18-bit 262,000 different shades)! 240x320 pixels with individual pixel control. It has way more resolution than a black and white 128x64 display. As a bonus, this display has a resistive touchscreen attached to it already, so you can detect finger presses anywhere on the screen.

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/Duemilanove/Diecimila). This shield does work with the Mega Arduinos but its going to be half the speed of the Uno-type boards because of the way the Mega rearranges all the pins (there is no way to get around this!) This shield is not Leonardo-compatible

This display shield has a controller built into it with RAM buffering, so that almost no work is done by the microcontroller. The shield does require a lot of pins: 12 lines total for the display, 13 total if you use the microSD card

If you are not using an Arduino-shaped microcontroller, check out our 2.8" TFT breakout board which can be easily wired up to any processor the breakout board version does not have microSD holder.

2.8 tft lcd touch shield for arduino library factory

This is a versatile and Arduino/Seeeduino/Arduino Mega compatible resistive touch screen shield which can be used as display device, or sketch pad for user input/interface.

Compared with the previous version (2.8" TFT Touch Shield V1.0) we improved the screen driver with a professional chip (ILI9341) to provide the pin-saving SPI communication protocol without sacrificing the data transmission speed.

Circles isn"t the only thing our library can help you draw, we also have a lines, number, rectangle, and many more examples. Check those out as well to become a pro with the shield.

Function Description: The drawCircle function draws an empty circle with the center at the coordinates poX, and poY. The circle will be of radius r and the border color will be color. The color parameter is a 16-bit Red-Geen-Blue (RGB) integer, in the example code above the words YELLOW, CYAN, RED, and BLUE are defined as integers in the TFTv2.h file.

RGB Integers:A 16-bit RGB integer specifies the amount of red, green, and blue to form a color. From right to left, bits 0-4, 5-10, and 11-15 specify the amount of blue, green, and red. For example, if you want to specify white as the color this will require an equal amount of red, green, and blue therefore the RGB integer for white will be 0xffff.

A color palette should be displayed on the right side of the screen to give the user different colors to choose from for his/her finger brush. The colors available in the palette are BLACK, RED, GREEN, BLUE, CYAN, YELLOW, WHITE, and GRAY1. Check out our artistic skills below!

The TFT Touch Shield"s backlight is on by default since its control circuit is directly powered by the 5V pin. If, however, you wish to control the backlight"s on/off state using the Arduino Digital I/O pin 7, a simple modification will have to be made:

Now controlling the backlight"s state is as easy as controlling an LED, upload the following code to the Arduino board to see how to toggle the backlight every 500ms (1/2 second):

I still remember when I post my first Instructable post years ago, it"s a project about Arduino, I made a phone with Arduino. It"s called ArduinoPhone, even today I can get some comments from it, and I am glad to help others to make their own phone with Arduino.

Combining Arduino and other shield modules, we make a mobile phone named Arduino Phone. Meanwhile, we printed a shell for it with the 3D printer. Although it"s not such fine as you think, even a little bit clunky, it"s still very cool. That is the point this is a cell phone made by ourselves.

While, we can"t install Arduino Phone Apps limited by Arduino. So, if you want to play Angry Birds, then you need to do some big modifications on Arduino Phone. :)

2.8 tft lcd touch shield for arduino library factory

This TFT Touch Shield is Arduino/Crowduino/Arduino Mega compatible, it integrated a 2.8” TFT Display and a resistive touch panel, to make this shield suitable for handheld devices.

This TFT Touch Shield has 240x320 pixels with individual pixel control, it uses the ILI9341 driver and SPI interface to communicate with controllers such as Arduino, saving you much Arduino pins for other usages in your projects. Besides, A SD card socket is also added to help you develop applications that data storage is needed such as digital picture album.

2.Install the library to the Arduino IDE library to ...\Arduino\libraries, but please note that if you downloaded the library in .zip file, you should delete the "-master" in the library name when you unzip it, as the "-" can not be recognized in the Arduino Library.

2.8 tft lcd touch shield for arduino library factory

The four sample codes: DisplayString, DrawGraphic, ShowBMP, and TouchPanel are used to display strings, graphics, pictures in BMP format, and touch pen functions.

Before performing the ShowImage display picture experiment, first, copy the pictures in the PIC folder in the data to the root directory of the SD card

Before experimenting with the TouchPanel, the touchscreen must be calibrated according to the displayed prompts. Open the corresponding project, burn the program, and you will be prompted when running:

The demos are developed based on the HAL library. Download the program, find the STM32 program file directory, and open the STM32 with four project folders: DisplayString, DrawGraphic, ShowImage, and Touchscreen.

The four sample codes: DisplayString, DrawGraphic, ShowBMP, and TouchPanel are used to display strings, graphics, pictures in BMP format, and touch pen functions.

Before performing the ShowImage display picture experiment, first, copy the pictures in the PIC folder in the data to the root directory of the SD card

For some development boards without ICSP interface (such as NUCLEO), you need to use 0 ohm resistor or solder to short the pads in the following three positions

2.8 tft lcd touch shield for arduino library factory

ER-TFTM028-4 is 240x320 dots 2.8" color tft lcd module display with ILI9341 controller board,superior display quality,super wide viewing angle and easily controlled by MCU such as 8051, PIC, AVR, ARDUINO,ARM and Raspberry PI.It can be used in any embedded systems,industrial device,security and hand-held equipment which requires display in high quality and colorful image.

It supports 8080 8-bit /9-bit/16-bit /18-bit parallel ,3-wire,4-wire serial spi interface.Built-in optional microSD card slot, 2.8" 4-wire resistive touch panel with controller XPT2046 and 2.8" capacitive touch panel with controller FT6206. It"s optional for font chip, flash chip and microsd card. We offer two types connection,one is pin header and the another is ZIF connector with flat cable mounting on board by default and suggested. Lanscape mode is also available.

Of course, we wouldn"t just leave you with a datasheet and a "good luck!".Here is the link for 2.8"TFT Touch Shield with Libraries, EXxamples.Schematic Diagram for Arduino Due,Mega 2560 and Uno . For 8051 microcontroller user,we prepared the detailed tutorial such as interfacing, demo code and development kit at the bottom of this page.

2.8 tft lcd touch shield for arduino library factory

ER-TFTM028IPS-4-IPS is 240x320 dots 2.8" color IPS tft lcd display with ILI9341 controller and board,superior display quality,super full viewing angle and easily controlled by MCU such as 8051, PIC, AVR, ARDUINO,ARM and Raspberry PI.It can be used in any embedded systems,industrial device,security and hand-held equipment which requires display in high quality and colorful image.

2.8 tft lcd touch shield for arduino library factory

Looking for a bigger screen to interface with the Arduino Uno? Bigger than the 2.4″ TFT LCD screen, this shield is able to display a little more information than the 2.4″ screen. In this tutorial, we’ll be looking at how we would interface the 2.8″ TFT LCD Touchscreen Shield with an Arduino Uno.

As this is an Arduino Shield, just attach the shield to the Arduino Board. (Uno, Mega, etc.) But in this tutorial, we’ll be connecting the shield to an Arduino Uno.

We’ll be using Adafruit’s GFX and TFTLCD library to interface the LCD shield with Arduino Uno. Download the library, extract the rspective folders and place it in your Arduino libraries directory.

Before using the TFT LCD Shield, we should first calibrate the touch screen. As there weren’t any calibration sketch provided in the librarie’s example, I wrote a simple calibration sketch to calibrate the touch screen. With this sketch, adapted from Adafruit’s tftpaint example sketch, it will display the offset that will remap the values of the raw values of the TFT resistors to the coordinates of the screen.

The values displayed at the end of the calibration will be used to determine the TS_MINX,TS_MINY, TS_MAXX & TS_MAXY variables. These variables are actually the resistance value of the TFT screen, which will be “converted” into coordinates relative to the screen:p.x = map(p.x, TS_MINX, TS_MAXX, 0, tft.width());

Upload the following code below to obtain the offset values. Remember to note down the respective values (TS_MINX,TS_MINY, TS_MAXX & TS_MAXY), as it is needed for the next section of the tutorial.// Paint example specifically for the TFTLCD breakout board.

After the calibration is done and the (maximum & minimum) X/Y resistance values recorded, we’ll proceed on to running the tftpaint demo. Open up tftpaint sketch from Adafruit’s TFTLCD examples.

Replace the following constants with the values you have obtained from the calibration sketch, which is loacted at around line 51. So for example, if your values are:Min X: 192

When you draw something on the touch screen with the original sketch, the X coordinates will be inverted. To fix it, we’ll have to flip the mapping function from :// scale from 0->1023 to tft.width

After the changes has been made, save the sketch and upload to the Arduino. And Viola! You should be able to draw on the screen without too much offset.

Open up your serial monitor & see whther the library is able to detect the driver. If the Serial Monitor returns something like this:Unknown LCD driver chip: 0x00

You can try hard-coding the driver of the LCD Shield specific to the shield you have. You can figure it through these following methods:Turn to the back of the shield & look for the chip ID

After you have figured out the driver ID, we’ll hard code the driver ID. Modify this line of code (at line 92) from this:uint16_t identifier = tft.readID();

2.8 tft lcd touch shield for arduino library factory

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! This Fantastic TFT display is big (2.8" diagonal) bright (4 white-LED backlight) and colorful (18-bit 262,000 different shades)! 240x320 pixels with individual pixel control. It has way more resolution than a black and white 128x64 display. As a bonus, this display comes with a resistive or capacitive touchscreen attached to it already, so you can detect finger presses anywhere on the screen.

There"s two versions of the shield. One has a resistive touch screen, one has a capacitive one. The TFT display and pinouts is the same for both. The microSD card is the same too. The differences come in on the touch screen controller .

TFT Screen PinsDigital #13 or ICSP SCLK - This is the hardware SPI clock pin. By default its digital #13. By cutting a jumper and soldering another on the back, you can move this line from #13 to the ICSP clock pin. This pin is used for the TFT, microSD and resistive touch screen data clock

Digital #12 or ICSP MISO - This is the hardware SPI master-in-slave-out pin. By default its digital #12. By cutting a jumper and soldering another on the back, you can move this line from #12 to the ICSP MISO pin. This pin is used for the TFT, microSD and resistive touch screen data

Digital #11 or ICSP MOSI - This is the hardware SPI master-out-slave-in pin. By default its digital #11. By cutting a jumper and soldering another on the back, you can move this line from #11 to the ICSP MOSI pin. This pin is used for the TFT, microSD and resistive touch screen data

Resistive Touch Controller PinsDigital #13 or ICSP SCLK - This is the hardware SPI clock pin. By default its digital #13. By cutting a jumper and soldering another on the back, you can move this line from #13 to the ICSP clock pin. This pin is used for the TFT, microSD and resistive touch screen data clock

Digital #8 - This is the STMPE610 Resistive Touch CS (chip select pin). It"s used by the Arduino to tell the Resistive controller that it wants to send/receive data from the STMPE610 only

Capacitive Touch PinsSDA - This is the I2C data pin used by the FT6206 capacitive touch controller chip. It can be shared with other I2C devices. On UNO"s this pin is also known as Analog 4.

SCL - This is the I2C clock pin used by the FT6206 capacitive touch controller chip. It can be shared with other I2C devices. On UNO"s this pin is also known as Analog 5.

MicroSD card PinsDigital #13 or ICSP SCLK - This is the hardware SPI clock pin. By default its digital #13. By cutting a jumper and soldering another on the back, you can move this line from #13 to the ICSP clock pin. This pin is used for the TFT, microSD and resistive touch screen data clock

The TFT LCD library is based off of the Adafruit GFX graphics core library. GFX has many ready to go functions that should help you start out with your project. Its not exhaustive and we"ll try to update it if we find a really useful function. Right now it supports pixels, lines, rectangles, circles, round-rects, triangles and printing text as well as rotation.

We have example code ready to go for use with these TFTs. Libraries need to be downloaded and installed . Such as : dmtftlibrary. , Adafruit ILI9341 library , Adafruit GFX Library !

2.8 tft lcd touch shield for arduino library factory

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2.8 tft lcd touch shield for arduino library factory

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 next example is controlling an RGB LED using these three RGB sliders. For example if we start to slide the blue slider, the LED will light up in blue and increase the light as we would go to the maximum value. So the sliders can move from 0 to 255 and with their combination we can set any color to the RGB LED, but just keep in mind that the LED cannot represent the colors that much accurate.

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.

As the code is a bit longer and for better understanding I will post the source code of the program in sections with description for each section. And at the end of this article I will post the complete source 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.

Next is the distance sensor button. First we need to set the color and then using the fillRoundRect() function we will draw the rounded rectangle. Then we will set the color back to white and using the drawRoundRect() function we will draw another rounded rectangle on top of the previous one, but this one will be without a fill so the overall appearance of the button looks like it has a frame. On top of the button we will print the text using the big font and the same background color as the fill of the button. The same procedure goes for the two other buttons.

Now we need to make the buttons functional so that when we press them they would send us to the appropriate example. In the setup section we set the character ‘0’ to the currentPage variable, which will indicate that we are at the home screen. So if that’s true, and if we press on the screen this if statement would become true and using these lines here we will get the X and Y coordinates where the screen has been pressed. If that’s the area that covers the first button we will call the drawDistanceSensor() custom function which will activate the distance sensor example. Also we will set the character ‘1’ to the variable currentPage which will indicate that we are at the first example. The drawFrame() custom function is used for highlighting the button when it’s pressed. The same procedure goes for the two other buttons.

So the drawDistanceSensor() custom function needs to be called only once when the button is pressed in order to draw all the graphics of this example in similar way as we described for the home screen. However, the getDistance() custom function needs to be called repeatedly in order to print the latest results of the distance measured by the sensor.

Here’s that function which uses the ultrasonic sensor to calculate the distance and print the values with SevenSegNum font in green color, either in centimeters or inches. If you need more details how the ultrasonic sensor works you can check my particular tutorialfor that. Back in the loop section we can see what happens when we press the select unit buttons as well as the back button.

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:

2.8 tft lcd touch shield for arduino library factory

This is Sainsmart 2.8 inch TFT LCD module with the TFT LCD shield kit For arduino enthusiasts.It includes one pcs of 2.8 inch TFT LCD display and a TFT LCD shield for arduino mega2560(R3).We will provided you the whole document including the example project of arduino mega2560(R3) with the kit. We will supply you the technical support after your purchase.

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.

This is Sainsmart TFT LCD Extend shield for arduino mega2560(R3) .Using this shield can help you out of the bothers to use other cables. You just need to plug the module to arduino mega2560(R3) through this shield.

The following just shows how does the TFT LCD shield work with arduino Mega2560 R3 and 2.8 inch LCD display,but the package just includes the TFT LCD Extend shield and 2.8 Inch LCD display.The package does not include the arduino mega2560 R3.

2,The LCD is compatible for arduino due and mega2560(R3),but the Shield is just for the arduino mega2560(R3).If you need the LCD Extend shield for arduino Due,you need a similar shield which is also provided from our store.

2.8 tft lcd touch shield for arduino library factory

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