open smart tft lcd shield library brands
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.
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.
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)
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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.
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:
This is a 2.4 inch TFT LCD expansion board using standard serial UART interface and it has good compatibility. It integrates TF card holder, level conversion circuit, and the secondary development is easy and simple.
Features:Compatibility: compatible with 3.3V / 5V MCU, such as Arduino UNO R3, OPEN-SMART UNO R3, STM32, 51MCU, RPiBuilt-in functions: Only a few commands are needed to display the pictures in the TF card, displaying characters, numbers, graphics.Working voltage: 4.5V - 5.5V (onboard 3.3v LDO Regulator), if short the pad VCC to 3V3, you can use 3.1-3.4V.Interface logic voltage: 3.3V / 5V compatible(onboard level shift circuit)Working current: 90mA (MAX)Serial port baud rate: 9600 (default), can use command to modify it to be other values: 19200, 38400, 57600, 115200Serial communication format: 8N1You can debug the module with the USB to TTL module, such as FT232RL, CH340G module.Onboard ATmega328 Series MCUTouchscreen type: resistive touchscreen.(If it has touch screen)TouchPen: length is 9cm;(If it has touch screen)Resolution: 240X320;Display size: 2.4 inch;Onboard Micro SD slot, support Micro SD / TF card;
Downloadpictures used in showbmp demo code.rar. And then unzip in your PC and copy all the pictures to the root directory of your TF card. Plug the TF card to the Serial TFT. Upload the demo code in the directory:D:\arduino-1.6.5-r2\libraries\OS_SerialTFT\examples\showBMP
SainSmart 3.2" TFT LCD Displayis 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 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.
This is a 3.0 inch TFT LCD expansion board. This display has a controller built into it with RAM buffer, so that almost all work is done by the TFT. It leads out the pins of the TFT and breakout pins pitch is 2.54mm, so the secondary development is easy.
This project is an open source 3.2″ Smart TFT display board. The board is based on a PIC32 and a 3.2′ TFT with touchscreen (ILI9320 controller, using 16bits PMP). The software has two main parts. One that produces the 2D functions and a GUI with various widgets (buttons, check boxes, sliders etc).
In the beginning, I just wanted to play with these cheap TFT screens available on eBay (displaying some pictures & text, nothing more); step by step, I finally designed a PCB and a built a consequent software with many 2D basic functions and even a small GUI.
The board is based on a PIC32 and a 3.2′ TFT with touchscreen (ILI9320 controller, using 16bits PMP). The PCB is 4.9 x 4.9 cm, 2 layers (=> $15 / 10 units at seeedfusion).
About the software: I’ve first tried to use some parts of code provided by Microchip, but their library looks like quite complex from my point of view (some files with more than 5k lines, with too much #ifdef…. ><“). As a result, I rewrote a new software, from scratch; this software is composed of 2 main parts:
As you know OPEN-SMART TFT display is a shield-type display for Arduino UNO and Mega. So The pin configurations are pre-fixed and can’t be changed. Download the modified MCUFRIEND_kbv Arduino library for using the TFT display and the TouchScreen library for controlling the touch screen.
From the above picture, we can see an LM75 temperature sensor on the back of the TFT display. Download the LM75 library from GitHub for using the LM75 temperature sensor provided in the TFT shield.
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.