set a font in arduino ide for tft display brands

This new library is a standalone library that contains the TFT driver as well as the graphics functions and fonts that were in the GFX library. This library has significant performance improvements when used with an UNO (or ATmega328 based Arduino) and MEGA.

Examples are included with the library, including graphics test programs. The example sketch TFT_Rainbow_one shows different ways of using the font support functions. This library now supports the "print" library so the formatting features of the "print" library can be used, for example to print to the TFT in Hexadecimal, for example:

The larger fonts are now Run Length Encoded (RLE) so that they occupy less FLASH space, this frees up space for the rest of the sketch. A byproduct of the RLE approach is that the font drawing is also speeded up so it is a win-win situation.

To use the F_AS_T performance option the ILI9341 based display must be connected to an MEGA as follows:MEGA +5V to display pin 1 (VCC) and pin 8 (LED) UNO 0V (GND) to display pin 2 (GND)

In the library Font 0 (GLCD font), 2, 4, 6 and 8 are enabled. Edit the Load_fonts.h file within the library folder to enable/disable fonts to save space.

TFT_ILI9341 library updated on 1st July 2015 to version 12, this latest version is attached here to step 8:Minor bug when rendering letter "T" in font 4 without background fixed

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Hi guys, I"ve managed to solve the issue on my own. I have tried to go with the Adafruit_TFTLCD library, but somehow, it"s just not working. So, I decided to challenge myself to go hack the Adafruit_GFX as well as the MCUFRIEND_kbv library. As it turns out, it"s not too complicated, so I will share what I have done in case someone has a similar challenge.

The very first thing I did was to make the setFont method public and virtual, that way, I can have the option to override it in the child class - MCUFRIEND_kbv class.

Once you have made the above changes, you can now easily set the Font Type you want to use as well as setting the font size. Personally, I think the font size setting made available through UTFTGLUE.h is really more like the 1x, 2x, 3x when you set the size=2 for example. If you want to really maintain a good font display, I would recommend using the relevant Font/[fontnamefile.h] in the Adafruit_GFX library.

P.S. I am not an expert, but I find that I can manage C++ pretty alright. So if anything that I shared seems wrong, please pardon me. My goal is always to just get things to work first. We can always fine tune the coding later.

ER-TFTM070-5-4125 is 7 inch tft lcd display with RA8875 controller board,arduino shield,examples,library.Optional touch panel,arduino mega2560,due or uno board.

When I try to change the font with those provided by the adafruit free library, the text remains with the default font.I read several post and forum, tried several different things in text mode and graphics mode, nothing works, font character remains by default.

I"m testing a new TFT shield for Arduino equipped with an ILI9341 by using the Adafuit GFX libraries and examples. The test program supplied with the library works fine out of the box displaying text and all kind of drawings on the screen.

However, the standard font built into the Adafruit GFX library is "blocky" to save memory space. They do provide other fonts, but I get an error when I try to invoke them.

I examined the libraries and nowhere could I find a procedure to select a font, yet the example has declarations like these below, so changing fonts should be possible:

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.

In electronic’s projects, creating an interface between user and system is very important. This interface could be created by displaying useful data, a menu, and ease of access. A beautiful design is also very important.

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 this article, we have used libraries and advanced technics to display data, charts, menu, etc. with a professional design. This can move your project presentation to a higher level.

In electronic’s projects, creating an interface between user and system is very important. This interface could be created by displaying useful data, a menu, and ease of access. A beautiful design is also very important.

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 this article, we have used libraries and advanced technics to display data, charts, menu, etc. with a professional design. This can move your project presentation to a higher level.

Size of displays affects your project parameters. Bigger Display is not always better. if you want to display high-resolution images and signs, you should choose a big size display with higher resolution. But it decreases the speed of your processing, needs more space and also needs more current to run.

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 display driver will typically accept commands and data using an industry-standard general-purpose serial or parallel interface, such as TTL, CMOS, RS232, SPI, I2C, etc. and generate signals with suitable voltage, current, timing and demultiplexing to make the display show the desired text or image.

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.

By these two functions, You can find out the resolution of the display. Just add them to the code and put the outputs in a uint16_t variable. Then read it from the Serial port by Serial.println(); . First add Serial.begin(9600); in setup().

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 just used a string and 8 filled circles that change their colors in order. To draw circles around a static point ,You can use sin();  and cos(); functions. you should define the PI number . To change colors, you can use color565(); function and replace your RGB code.

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 created a function which accepts numbers as input and displays them as a pie chart. We just use draw arc and filled circle functions.

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.

As a 2.4inch TFT display module with a resolution of 240 * 320, it uses the SPI interface for communication. LCD has an internal controller with basic functions, which can be used to draw points, lines, circles, and rectangles, and can display English, Chinese as well as pictures.

The 2.4inch LCD uses the PH2.0 8PIN interface, which can be connected to the Raspberry Pi according to the above table: (Please connect according to the pin definition table. The color of the wiring in the picture is for reference only, and the actual color shall prevail.)

The example we provide is based on STM32F103RBT6, and the connection method provided is also the corresponding pin of STM32F103RBT6. If you need to transplant the program, please connect according to the actual pin.

The LCD supports 12-bit, 16-bit, and 18-bit input color formats per pixel, namely RGB444, RGB565, and RGB666 three color formats, this demo uses RGB565 color format, which is also a commonly used RGB format.

For most LCD controllers, the communication mode of the controller can be configured, usually with an 8080 parallel interface, three-wire SPI, four-wire SPI, and other communication methods. This LCD uses a four-wire SPI communication interface, which can greatly save the GPIO port, and the communication speed will be faster.

Note: Different from the traditional SPI protocol, the data line from the slave to the master is hidden since the device only has a display requirement.

CPOL determines the level of the serial synchronous clock at idle state. When CPOL = 0, the level is Low. However, CPOL has little effect to the transmission.

CPHA determines whether data is collected at the first clock edge or at the second clock edge of serial synchronous clock; when CPHL = 0, data is collected at the first clock edge.

PS: If you are using the system of the Bullseye branch, you need to change "apt-get" to "apt", the system of the Bullseye branch only supports Python3.

Framebuffer uses a video output device to drive a video display device from a memory buffer containing complete frame data. Simply put, a memory area is used to store the display content, and the display content can be changed by changing the data in the memory.

There is an open source project on github: fbcp-ili9341. Compared with other fbcp projects, this project uses partial refresh and DMA to achieve a speed of up to 60fps

Note: The script will replace the corresponding /boot/config.txt and /etc/rc.local and restart, if the user needs, please back up the relevant files in advance.

We have carried out the low-level encapsulation, if you need to know the internal implementation can go to the corresponding directory to check, for the reason that the hardware platform and the internal implementation are different

2.We use Dev libraries by default. If you need to change to BCM2835 or WiringPi libraries ,please open RaspberryPi\c\Makefile and modify lines 13-15 as follows:

If you need to draw pictures, or display Chinese and English characters, we provide some basic functions here about some graphics processing in the directory RaspberryPi\c\lib\GUI\GUI_Paint.c(.h).

Select image buffer: The purpose of the selection is that you can create multiple image attributes, there can be multiple images buffer, you can select each image you create.

Mirror: indicates the image mirroring mode. MIRROR_NONE, MIRROR_HORIZONTAL, MIRROR_VERTICAL, MIRROR_ORIGIN correspond to no mirror, horizontal mirror, vertical mirror, and image center mirror respectively.

Set points of the display position and color in the buffer: here is the core GUI function, processing points display position and color in the buffer.

The fill color of a certain window in the image buffer: the image buffer part of the window filled with a certain color, usually used to fresh the screen into blank, often used for time display, fresh the last second of the screen.

Draw rectangle: In the image buffer, draw a rectangle from (Xstart, Ystart) to (Xend, Yend), you can choose the color, the width of the line, whether to fill the inside of the rectangle.

Draw circle: In the image buffer, draw a circle of Radius with (X_Center Y_Center) as the center. You can choose the color, the width of the line, and whether to fill the inside of the circle.

Write Ascii character: In the image buffer, use (Xstart Ystart) as the left vertex, write an Ascii character, you can select Ascii visual character library, font foreground color, font background color.

Write English string: In the image buffer, use (Xstart Ystart) as the left vertex, write a string of English characters, you can choose Ascii visual character library, font foreground color, font background color.

Write Chinese string: in the image buffer, use (Xstart Ystart) as the left vertex, write a string of Chinese characters, you can choose character font, font foreground color, font background color of the GB2312 encoding

Write numbers: In the image buffer,use (Xstart Ystart) as the left vertex, write a string of numbers, you can choose Ascii visual character library, font foreground color, font background color.

Display time: in the image buffer,use (Xstart Ystart) as the left vertex, display time,you can choose Ascii visual character font, font foreground color, font background color.;

2. The module_init() function is automatically called in the INIT () initializer on the LCD, but the module_exit() function needs to be called by itself

Python has an image library PIL official library link, it do not need to write code from the logical layer like C, can directly call to the image library for image processing. The following will take 1.54inch LCD as an example, we provide a brief description for the demo.

The first parameter defines the color depth of the image, which is defined as "1" to indicate the bitmap of one-bit depth. The second parameter is a tuple that defines the width and height of the image. The third parameter defines the default color of the buffer, which is defined as "WHITE".

The first argument is a tuple of four elements. (20,10) is the coordinate value in the upper left corner of the rectangle, and (70,60) is the coordinate value in the lower right corner of the rectangle. Fill =" WHITE" means BLACK inside, and outline="BLACK" means the color of the outline is black.

Draw an inscribed circle in the square, the first parameter is a tuple of 4 elements, with (150, 15) as the upper left corner vertex of the square, (190, 55) as the lower right corner vertex of the square, specifying the level median line of the rectangular frame is the angle of 0 degrees, the second parameter indicates the starting angle, the third parameter indicates the ending angle, and fill = 0 indicates that the the color of the line is white.

The first parameter is the coordination of the enclosing rectangle. The second and third parameters are the beginning and end degrees of the circle. The fourth parameter is the fill color of the circle.

Note: Each character library contains different characters; If some characters cannot be displayed, it is recommended that you can refer to the encoding set ro used.

The first parameter is a tuple of 2 elements, with (40, 50) as the left vertex, the font is Font2, and the fill is the font color. You can directly make fill = "WHITE", because the regular color value is already defined Well, of course, you can also use fill = (128,255,128), the parentheses correspond to the values of the three RGB colors so that you can precisely control the color you want. The second sentence shows Micro Snow Electronics, using Font3, the font color is white.

Hi guys, welcome to today’s tutorial. Today, we will look on how to use the 1.8″ ST7735  colored TFT display with Arduino. The past few tutorials have been focused on how to use the Nokia 5110 LCD display extensively but there will be a time when we will need to use a colored display or something bigger with additional features, that’s where the 1.8″ ST7735 TFT display comes in.

The ST7735 TFT display is a 1.8″ display with a resolution of 128×160 pixels and can display a wide range of colors ( full 18-bit color, 262,144 shades!). The display uses the SPI protocol for communication and has its own pixel-addressable frame buffer which means it can be used with all kinds of microcontroller and you only need 4 i/o pins. To complement the display, it also comes with an SD card slot on which colored bitmaps can be loaded and easily displayed on the screen.

The schematics for this project is fairly easy as the only thing we will be connecting to the Arduino is the display. Connect the display to the Arduino as shown in the schematics below.

Due to variation in display pin out from different manufacturers and for clarity, the pin connection between the Arduino and the TFT display is mapped out below:

We will use two libraries from Adafruit to help us easily communicate with the LCD. The libraries include the Adafruit GFX library which can be downloaded here and the Adafruit ST7735 Library which can be downloaded here.

We will use two example sketches to demonstrate the use of the ST7735 TFT display. The first example is the lightweight TFT Display text example sketch from the Adafruit TFT examples. It can be accessed by going to examples -> TFT -> Arduino -> TFTDisplaytext. This example displays the analog value of pin A0 on the display. It is one of the easiest examples that can be used to demonstrate the ability of this display.

The second example is the graphics test example from the more capable and heavier Adafruit ST7735 Arduino library. I will explain this particular example as it features the use of the display for diverse purposes including the display of text and “animated” graphics. With the Adafruit ST7735 library installed, this example can be accessed by going to examples -> Adafruit ST7735 library -> graphics test.

The first thing, as usual, is to include the libraries to be used after which we declare the pins on the Arduino to which our LCD pins are connected to. We also make a slight change to the code setting reset pin as pin 8 and DC pin as pin 9 to match our schematics.

Next, we create an object of the library with the pins to which the LCD is connected on the Arduino as parameters. There are two options for this, feel free to choose the most preferred.

Next, we move to the void setup function where we initialize the screen and call different test functions to display certain texts or images.  These functions can be edited to display what you want based on your project needs.

testdrawtext("Lorem ipsum dolor sit amet, consectetur adipiscing elit. Curabitur adipiscing ante sed nibh tincidunt feugiat. Maecenas enim massa, fringilla sed malesuada et, malesuada sit amet turpis. Sed porttitor neque ut ante pretium vitae malesuada nunc bibendum. Nullam aliquet ultrices massa eu hendrerit. Ut sed nisi lorem. In vestibulum purus a tortor imperdiet posuere. ", ST7735_WHITE);

All the functions called under the void setup function, perform different functions, some draw lines, some, boxes and text with different font, color and size and they can all be edited to do what your project needs.

The complete code for this is available under the libraries example on the Arduino IDE. Don’t forget to change the DC and the RESET pin configuration in the code to match the schematics.

Uploading the code to the Arduino board brings a flash of different shapes and text with different colors on the display. I captured one and its shown in the image below.

That’s it for this tutorial guys, what interesting thing are you going to build with this display? Let’s get the conversation started. Feel free to reach me via the comment section if you have any questions as regards this project.

Creators notes: The character before the lowercase "a" is normally a grave accent, but have been changed to the "°" character to be able to show °C on the screen.

Creators notes: The character just before the lowercase "a" normal is a grave accent, but here changed to the º character to have the possibility to show ºC on the TFT screen.

Creators notes: The character just before the lowercase "a" normal is a grave accent, but here changed to the º character to have the possibility to show ºC on the TFT screen.

The font is based on a monospace font named Ubuntu. It is made for larger displays with a higher resolutions, like the ITB02-5.0 from ITead Studio. So you can show larger characters on the TFT screen.

Creators notes: The character before the lowercase "a" is normally a grave accent, but have been changed to the "º" character to be able to show °C on the screen.

The font is based on a monospace font named Ubuntu. It is made for larger displays with a higher resolutions, like the ITB02-5.0 from ITead Studio. So you can show larger characters on the TFT screen.

Creators notes: The character before the lowercase "a" is normally a grave accent, but have been changed to the "º" character to be able to show °C on the screen.

16x32 sized font based on several symbol type PC fonts with normal font weight. Very useful for creating buttons on touch screens etc. Some variations with symbols when compared to the "various_symbols" font.

16x32 sized font based on several symbol type PC fonts with normal font weight. Very useful for creating buttons on touch screens etc. Some variations with symbols when compared to the "various_symbols" font.

32x32 sized font based on several symbol type PC fonts with normal font weight. Very useful for creating buttons on touch screens etc. Some variations with symbols when compared to the "various_symbols" font.

POSTNET (POSTal Numeric Encoding Technique) barcode font. POSTNET is a barcode symbology that is used by the United States Postal Service to assist in directing mail.

This is a clear reading sixteen-segment numeric font. Points from the 40-Pixel full font can be used in combination with the numeric fonts, because additional to the normal point, you have a double size and a quad size point as special character in all full fonts.

This is a clear reading sixteen-segment numeric font. Points from the 40-Pixel full font can be used in combination with the numeric fonts, because additional to the normal point, you have a double size and a quad size point as special character in all full fonts.

This is a clear reading sixteen-segment numeric font. Points from the 40-Pixel full font can be used in combination with the numeric fonts, because additional to the normal point, you have a double size and a quad size point as special character in all full fonts.

This is a clear reading sixteen-segment numeric font. Points from the 40-Pixel full font can be used in combination with the numeric fonts, because additional to the normal point, you have a double size and a quad size point as special character in all full fonts.

RM4SCC barcode font. RM4SCC is the name of the barcode symbology used by the Royal Mail for its Cleanmail service. The font contains the numbers from 0 to 9, (, ), and the uppercase letters from A to Z. Parentheses are used as start and stop codes.

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. At the end of this article, you can:Write texts and numbers with your own font.Draw shapes like circle, triangle, square, etc.Change screen parameters such as rotation.

fillScreen function change the color of screen to t color. The t should be a 16bit variable containing UTFT color code.#define BLACK 0x0000#define NAVY 0x000F#define DARKGREEN 0x03E0#define DARKCYAN 0x03EF#define MAROON 0x7800#define PURPLE 0x780F#define OLIVE 0x7BE0#define LIGHTGREY 0xC618#define DARKGREY 0x7BEF#define BLUE 0x001F#define GREEN 0x07E0#define CYAN 0x07FF#define RED 0xF800#define MAGENTA 0xF81F#define YELLOW 0xFFE0#define WHITE 0xFFFF#define ORANGE 0xFD20#define GREENYELLOW 0xAFE5#define PINK 0xF81F

Drawing Rectanglestft.fillRect(x,y,w,h,t);//fillRect(int16_t x, int16_t y, int16_t w, int16_t h, uint16_t t)tft.drawRect(x,y,w,h,t);//drawRect(int16_t x, int16_t y, int16_t w, int16_t h, uint16_t t)

Drawing Round Rectanglestft.fillRoundRect(x,y,w,h,r,t);//fillRoundRect (int16_t x, int16_t y, int16_t w, int16_t h, uint8_t R , uint16_t t)tft.drawRoundRect(x,y,w,h,r,t);//drawRoundRect(int16_t x, int16_t y, int16_t w, int16_t h, uint8_t R , uint16_t t)

Drawing Circlestft.drawCircle(x,y,r,t);//drawCircle(int16_t x, int16_t y, int16_t r, uint16_t t)tft.fillCircle(x,y,r,t);//fillCircle(int16_t x, int16_t y, int16_t r, uint16_t t)

Drawing Trianglestft.drawTriangle(x1,y1,x2,y2,x3,y3,t);//drawTriangle(int16_t x1, int16_t y1, int16_t x2, int16_t y2, int16_t x3, int16_t y3,// uint16_t t)tft.fillTriangle(x1,y1,x2,y2,x3,y3,t);//fillTriangle(int16_t x1, int16_t y1, int16_t x2, int16_t y2, int16_t x3, int16_t y3,// uint16_t t)

This code sets the cursor position to of x and ytft.setTextColor(t); //setTextColor(uint16_t t)tft.setTextColor(t,b); //setTextColor(uint16_t t, uint16_t b)

The second function just displays the string.t.setCursor(20, 160);t.setTextColor(WHITE);t.setTextColor(WHITE, BLACK);t.setTextSize(2);t.println("www.dayalsoft.com");

There are a few common TFT display drivers on the electronics hobbyist market, and a handful of libraries that work with them. TFT displays are high resolution and full color, unlike the OLED or ePaper displays mentioned in this repository. Most libraries for color TFT displays implement the usual 24-bit RGB color space, where 0xFF0000 is red, 0x00FF00 is green, and 0x0000FF is blue.

TFT displays can be slow to update. Therefore, it’s sometimes usefil to draw only part of the display at once. Adafruits GFX library includes a Canvas class, which lets you update elements offscreen and then draw them. It doesn’t speed up the display, but it can simplify drawing a subset of the screen. See this example to see it in use. Other libraries don’t include a canvas, but you can draw a filled rectangle over part of the screen and then draw on top of it, as shown in this example for the ILI9225.

Most TFT displays tend to have an SPI interface, with some extra pins, as explained on the main page of this repo. Some displays, like MakerFocus’ 1.3” TFT, do not implement the CS pin. For this board and others like it, initializing them with SPI_MODE3 works.

All of the displays listed below have been tested with the Adafruit_ST7735/ST7789 libraries and the Adafruit_GFX library, with the modifications mentioned below.

MakerFocus 1.3” LCD Display, no MicroSD, Amazon link - This display does not have a CS pin, so it can’t be used with other SPI devices at the same time. It works with the Adafruit_ST7789 library, but you have to change the init() function to include the SPI mode like so:

There’s no standard library for TFT screens, unfortunately. Vendors tend to support the displays they make in their own breakout boards, and not others. As with other types of displays, a well-supported library like the Adafruit libraries makes the display worth more, but limits you to the types of displays that vendor offers. Display manufacturers like Ilitek and Sitronix do not appear to release their own libraries for their displays.

The Adafruit_ST7735/7789 library and Adafruit_GFX library works well with some of the Sitronix boards above. It does not support the DFRobot ST7867S board, however.

The DFRobot_ST7687S library has slow refresh rate on the ST7687S board. It’s unclear whether the issue is the library or the board, however. I have yet to find another library to use with this display, though there are a couple other vendors for the board itself on Amazon. Unfortunately the u8g2 library doesn’t support this display, though it does support many of the Sitronix boards.

The TFT_22_ILI9225 library works with this display, and its methods are well documented. Its graphics API is different than some of the other graphics libraries, and doesn’t implement the Printable API, so you can’t use commands like print() and println() with it. It has its own drawText() method instead, which takes an Arduino String object. It comes with a few built-in fonts, and includes many of the Adafruit GFX fonts, and you can generate your own fonts using the The squix.ch custom font generator. Set the settings to

The new line of 3.5” TFT displays with IPS technology is now available! Three touchscreen options are available: capacitive, resistive, or without a touchscreen.

Sounds like you are using proportionally-spaced fonts instead of the original classic fonts that ships with Adafruit_GFX. Historically, when using the default classic fonts one could set the background color option of the text to the same color as the background of the screen (usually black). This would overwrite the old screen contents with new data and work because the characters using the classic fonts are a uniform size. When using proportionally-spaced fonts, the background color option for the font is disabled by design.

This was presumably because of memory requirements and speed on slower AVR"s. Regardless, when using proportionally-spaced fonts the background color feature won"t work due to non-uniform sized characters overlapping the same regions as adjacent characters.

Note that options 1 & 2 above are mutually exclusive. The second method requires more memory. The first method isn"t perfect and produces some small amount of flicker, but is in general acceptable if coded carefully.

I hope that I have understood what the nature of your problem is and answered it in a satisfactory manner. If nothing else, at least now you know why custom font"s will not work with the so called background color feature that works with the original "classic" Adafruit fonts.

The E43RG34827LW2M300-R is a color active matrix TFT (Thin Film Transistor) LCD (liquid crystal display) that uses amorphous silicon TFT as a switching device. This model is composed of a transmissive type TFT LCD panel, driver circuit, and backlight. The resolution of a 4.3” TFT LCD contains 480x272 pixels and can display up to 16.7M colors.

The RA8875 Driver board is capable of driving 4”, 5” and 7” 40-pin TFTs with up to 800x480 pixels. It can be used with the Arduino and features 60Hz refresh rate, 4 MHz pixel clocking and a resistive touchscreen. It contains 768KB of RAM for buffering the display. The interface uses SPI and has a selection of hardware-accelerated shapes like ellipses, triangles, and rectangles. Moreover, it has a built-in English/European font set.

The RA8875 has the ability to handle 4-wire resistive touchscreens over SPI. Also included is an interrupt pin (IRQ) to take care of touch interrupts. 3-5V power can be used via on-board level-shifting and includes a constant-current boost power supply which provides 25mA or 50mA at 24V to the backlight.

Caution:Not all 40-pin TFTs may work with this board and may even damage it or the TFT itself because of different pinouts and backlight management. 24V from the boost supply may be inadvertently applied to the logic pins. So please check the TFT datasheet first.

4.b Wire up the circuit as shown in the following schematic (Figure 3). The Datalogger or Ethernet Shield is plugged on top of the Arduino UNO. The actual setup is shown in Figure 4.

4.d Save that image on the SD card. The filename should be equal or less than 8 characters. In this example, the name: “flcdlog0.bmp” was used (see line 69 of the sketch). You can use another image or filename.

In line 49 of the sketch, you have to set the resolution (size) e.g. "RA8875_480x80", "RA8875_480x128", "RA8875_480x272" or "RA8875_800x480". In this case, it is "RA8875_480x272".

4.g Specify Arduino UNO is used and select the correct PC COM port. In the IDE top menu, select Tools > “Board: Arduino / Genuino UNO”. Then again, Tools > Port. Usually, it is COM3.

The E43RG34827LW2M300-R TFT has a wide-array of applications apart from this simple example of drawing bitmaps. It has been demonstrated that it can work with an Arduino via the RA8875 board. More complicated designs can be derived from this application note.

Buyers and others who are developing systems that incorporate FocusLCDs products (collectively, “Designers”) understand and agree that Designers remain responsible for using their independent analysis, evaluation and judgment in designing their applications and that Designers have full and exclusive responsibility to assure the safety of Designers" applications and compliance of their applications (and of all FocusLCDs products used in or for Designers’ applications) with all applicable regulations, laws and other applicable requirements.

Designer agrees that prior to using or distributing any applications that include FocusLCDs products, Designer will thoroughly test such applications and the functionality of such FocusLCDs products as used in such applications.

This document goes through various features of the current Nextion Editor. The Nextion Editor is used to rapidly create Human Machine Interface GUIs for Nextion HMI devices. As such the GUI can be created within Hours instead of Weeks, and Days instead of Months. So while we won’t be covering basics such as opening a file, we will point out somethings that might prove helpful to know, or reminders need be made.

Note: Nextion Editor has indeed evolved since its early beginnings, so I would like to take a moment for a quick review. As time has passed, many additional features and bug fixes were incorporated. The Nextion Editor is not expected to retain every previous behaviours between versions exactly. With the new, then there are indeed new behaviours and new possibilities.

The pandemic had created global supply shortages and to meet these challenges while keeping with Nextion quality then second source components/ICs were indeed needed. This said, while elder devices only require firmware level code to communicate with primary sources ICs, the newer devices with secondary source ICs (visually identified with QR codes on the microSD slot) indeed require more recent versions of the Nextion Editor (v1.63.3 and later recommended) for the firmware to communicate with the secondary source ICs. As such, newer devices with secondary source ICs can not make use of elder versions of the Nextion Editor (such as v0.38, or LTS) before such firmware level code was incorporated into the Nextion Editor version firmware.

Since 2020, the newer Nextion devices may give a Data Error when trying to attempt loading a *.TFT file that was created with an Editor version prior to version 1.63.3 that does not have the ability to communicate with second source ICs. One would need to compile their project with a version 1.63.3 or later and use that *.TFT file to upload their project to the newer Nextion device.

Now mostly Historical, those original Nextion devices from 2015/2016 with the Itead logo on the PCB may require an intermediary upgrade only if all the Legacy conditions are met (see the Legacy FAQ, v0.42 intermediary TFTs are supplied in FAQ), otherwise when every condition is not met then such an intermediary is not required. Devices that were upgraded to a version of the Nextion Editor v0.29 and later can not return to an earlier version (v0.28 and before). Devices that were upgraded to a version of the Nextion Editor v0.38 and later can not return to an earlier version (v0.37 and before). Enhanced Series models require v0.33 or later, when Enhanced models were introduced. Intelligent Series models require v0.58 or later, when Intelligent models were introduced. Discovery Series models require v1.62.2 and later, when Discovery models were introduced. The Nextion Editor LTS Edition (Long Term Support) can only be used with elder Basic and Enhanced devices without second sources ICs. And of course, any newer devices with the QR code on the microSD card slot requires v1.63.3 or later.

This Editor Guide will refer exclusively to the new and current Nextion Editor. Where an item within the guide may be specific to a particular Nextion series, the following icons will be used to represent the series: For the Basic T Series

Requirements* Windows Operating System (XP or higher). Users must know and be able to use their Windows OS. Windows OS support is beyond the scope of Nextion, so while Microsoft discontinues there support of earlier OSes, the current Nextion Editor does run on XP with the x86 .NET 3.5 and x86 2015 VC++ Redistributable. Users are expected to know their own development environment. Note: Installations on VMware and other Operating Systems may have been accomplished successfully, but is not officially supported and beyond the scope of any manual.

* As stated in the Note above, use of Nextion Editor v1.63.3 or later is required for newer Nextion devices with second source ICs, or a Data Error may occur when the *.tft file firmware can not communicate with the second source ICs

* A reasonable sized monitor for the model’s resolution you are designing for is only good sense. When designing for a 320×240 or 240×320 model then a standard monitor size is probably sufficient. However, if one is designing for 1024×600 or 600×1024 resolutions, then it would stand to good reason not to expect best ease from using an 800×600 monitor resolution. For comfort, then it is senseful to use a large enough monitor resolution so that your design canvas, tool panes, menus, and event panes fit for your designing comfort. And in the reverse, a large enough screen for for your development comfort when designing for the smallest of Nextion devices. It is not appropriate to blame the Editor software for your too small monitor when you really know you need more screen real estate.

* Basic programming skills are prerequisite. The Nextion Instruction Set is made up of ASCII text based commands inbound, and significant first byte binary Return Data. A component’s Touch Event “Send Component ID” can be used to defer programming tasks to the user’s MCU.

* As such, quickly creating an HMI GUI for Nextion does not demand extreme skills – but basic programming skill are expected. When programming logic Nextion side, then users should have a foundation in programming.

* Over 68,000 MCUs (any MCU with an internal UART module or two digital pins to bit-bang a Software Serial) can be used with Nextion in over 130 programing languages. MCU side programming is beyond the scope of Nextion and remains within the user’s domain and duty to know and understand their chosen MCU and chosen MCU side programming languages.

* Uploading your completed Nextion HMI project can be accomplished either by microSD card or over TTL Serial. As there are dozens of manufactures for each of these, it is the user’s domain and duty to know their device installation, configuration and operation.

The latest version of the Nextion Editor can be downloaded from [here]. Earlier versions of the Nextion Editor can be downloaded from the Nextion Editors and Change Logs thread in the Announcement Forum (Register for the forum, confirm and then Login to use).

There are typically two versions of the nextion-setup available for download.1) The EXE version is installed through the Windows MSI for a more automated installation. Only one version of the Nextion Editor may be registered at a time via the EXE version. When updating within the Nextion Editor, Auto Update will install the EXE version

2) The ZIP version can be unzipped into a user chosen folder and run directly from that folder. For maintaining multiple versions of the Nextion Editor, the ZIP version is recommended. When updating within the Nextion Editor, Manual Update will launch your web browser to the download page so you may download the ZIP version

Many of the panes can be adjusted on both size and their location. To resize, drag the splitter between panes and move to resize the panes. To move a pane to a more convenient location, drag the title of the pane and release on your preferred drop point. Panes can also be pinned to retain a fixed position or unpinned to collapse to an edge when not in focus. When needed, you can reset these and any Pane settings by selecting the Reset layoutunder the Settingmenu.

Other settings in the Nextion Editor can be configured in Configuration under the Settings menu. The default font of the Nextion Editor can now be changed to suit your taste. The default timeout of 100ms for the Debug Simulator can be adjusted from 20ms to 5000ms. Code hints, highlighting, description, tooltips and auto-complete can be set individually for the Editor and the Debug Simulator. Default path for eeprom and sd files can be customized to suit your taste. When needed, you can reset these settings by selecting the Reset layout under the Settings menu.

In the Display Tab of the Nextion Editor on starting the Editor, there is a section for listing the most Recent Projects. The number of recent projects tracked is by default 10, and can be increased. Right-clicking a project allows you to select from the following:* Open the file: if the project file exists, then opens in the Editor

The Title Bar contains the path and filename of the HMI project file when an HMI project is loaded. When an HMI project is not currently loaded, you can:* Open an existing HMI file using the Open toolbar button.

Here, Users can create a New project, Open an existing project, Save the current project, Save as to rename and save the currently loaded project, Close Project to close their current project, and Exit the Nextion Editor. Import Project will append an existing project into the current project – usually with resulting naming and renumbering issues. As such, it is recommended to either: a) load your project, adjust your device settings, and Save as under your new project name, or limit importing to individual pages if importing is required.

Clear Recent Projects used to clear the Project filenames in the Recent projects pane has been removed and is now accomplished in the Recent projects pane with context click and selecting Delete all records, or by managing the recent projects with more selectiveness.

With the new TFT File Output, users can select where the TFT file should be placed (which folder, sd card drive, other). A valid HMI without compile errors is required to generate a valid TFT output file. The option to open the output folder location in Windows Explorer can be made by clicking only open the output folder link. The old folder location C:\Users\Username\AppData\Roaming\Nextion Editor\bianyi will still contain previously compiled TFTs from elder Editor versions, and only if this is used as the TFT File Output location, will the new TFT for the current project be added to that folder.

The Backup Directory has been renamed to Version backup folder only keeps a copy of an older HMI project opened with a new version of the Nextion Editor launches Windows Explorer to the C:\Users\Username\AppData\Roaming\Nextion Editor\backup folder.

The Virtual EEPROM Folder located C:\Users\Username\AppData\Roaming\Nextion Editor\eeprom contains the eeprom.bin for the Enhanced/Intelligent series models. The default folder can be customized in Settings > Configuration.

The Virtual SD Card Folder located C:\Users\Username\AppData\Roaming\Nextion Editor\sdcard0 allows users of the Intelligent series models to copy project files here that will eventually be on their Nextion microSD card, allowing users to test their project in the Debug Simulator. The default folder can be customized in Settings > Configuration.

Under the Tools menu, users can access the external tools Font Generator, GmovMaker, VideoBox and PictureBox. These are covered individually in Section 5 of this Guide.

In the Configuration menuitem, the user can choose for the Nextion Editor and the Debug Simulator if code should be highlighted or not, if Auto-Complete should be on, if the descriptions for instruction parameters should be on or not, if the tooltips should be shown when the mouse is over the toolbar buttons.

For serial data in the Debug Simulator, the timeout can be adjusted from its 100ms default value to a user selected value within the range from 20ms to 5 seconds.

For the new Intelligent Series, the user can choose if there should be a 3 second delay at screen edge before allowing the component position to escape to the outside of the canvas area. This is useful to be on, especially in the Basic, Discovery and Enhanced models as out of bounds positioning is not permitted and will cause the project to not compile.

For the eeprom/sd folder, the user can choose to use the default path, or can set their own custom path that is more suited to their system and workflow.

Transparent color replacement value defaults to the 565 color 0 (BLACK), and is useful when importing images into the Picture Pane to convert the transparent pixels to a desired color when transparency is not supported (ie: Basic, Enhanced and Discovery Series models).

Finally, the default Font used for the Nextion Editor can be changed to suit the users taste. Currently, this default font effects both Editor wide as well as the Event code font. Resetting the font to the default Microsoft Sans Serif will return the Editor to its normal traditionally used font.

Reset layout will reset the Nextion Editor default panes back to their original positions. This is a useful starting point if you have somehow misplaced your pane or positioned it in some obscure unreachable position.

Selecting About Nextion Editor menuitem in the About menu will show the about box with the version of the Nextion Editor. Clicking the link will take you to the Nextion website where you can access the forums and other documentation.

Selecting Check for new version menuitem in the About Menu will show the Update dialog when a new version is available (see Downloading the Nextion Editor at the beginning of this Guide), or a dialog informing that you have the most recent version.

Pay attention to any warnings as these will mean your project may not run as you expect. Pay attention to any error messages as they will need to be corrected before continuing. Error messages are descriptive, and if it is a code error then the user can click to jump directly to the coding error location.

Compile is more of a building and assembly process. This is only stated so that users do not make the wrong expectations of native machine code when making feature requests and/or Bug Reports. Nextion remains closed source.

A TFT file is no longer built and placed in the bianyi folder on Compile. To generate a TFT file, one has to use the TFT file output menuitem located under the File menu

The Nextion Editor contains a built-in Simulator that can be accessed via the toolbar Debug. To be clear this is not a precision emulator and is intended to be sufficient to assist in debugging a users project. It in no way is meant to replicate the Nextion device exactly. (Any Windows OS is already sufficient to make such precision unattainable). The Debug Simulator will be covered in more detail in Section 3 of this Guide.

If a project is not currently loaded in the Nextion Editor, Debug will open a dialog to open a compiled *.TFT file directly. This is handy for loading demos or sharing ideas without surrendering your original source code. Although the Debug Simulator can run a *.TFT file from any Nextion Series or model supported by the version of the Nextion Editor, it is important that the same version of Nextion Editor and *.TFT file is used to successfully simulate. (ie: an older v0.36 project TFT file can not be used with the current version of the Nextion Editor.)

Selecting Upload will launch an Open dialog to select a *.TFT file before the Upload to Nextion Device dialog. Ensure the Nextion is connected via serial (typically via USB to TTL adapter) before upload or the Port may not be available to select. Auto search feature will look for your Nextion’s reply to the connect instruction, but realize that data is being sent on all serial ports that are searched (and may interfere with the other connected serial devices). A better choice is to select the correct Port and Baud Rate. Proper configuration of Serial adapters, Windows drivers, device conflicts, etc is beyond the scope of Nextion support and remains the domain of user responsibility to know their used Operating System and devices.

Once Nextion has responded to the connect instruction, the upload process will begin. Do not interrupt this process until completed. If the process has been interrupted, resetting the serial port may be required. When a partial *.TFT file has been uploaded and uploading over serial is no longer an option, then the user will need to upload via the microSD method. Refer to Section 4 of this guide.

Users can select components or multiple components and then Copy, Cut, Paste or Delete as required. Paste contains a drop down option to in place paste which will copy without any vertical or horizontal offsets.

Users can select components or multiple components and then Lock or Unlock as required. Locking prevents a component from being repositioned with the mouse until unlocked. A lock icon appears in the upper right corner of the visual components when locked that can interfere with visual inspection of your HMI design.

For Renumbering components: Bring Top (Arrow Up) will take the selected component(s) and renumber to the highest .id on the page. Bring Bottom (Arrow Down) will take the selected component(s) and renumber to the lowest .id starting at 1 (page component is always 0) on the page.

For Aligning components: Align Left, Align Right, Align Top and Align Bottom will take a group of selected components (green ID labels) and bring the alignment to match the component with the blue ID label.

For Resizing components: Same Width, Same Height and Same Size will take a group of selected components (green ID labels) and set the size (width, height or both) to match the component with the blue ID label.

For Spacing components: Make horizontal spacing equal, Increase horizontal spacing, and Decrease horizontal spacing will take a group of selected components (green ID labels) and adjust the horizontal spacing between components using the component with the blue ID label as the baseline component. Likewise: Make vertical spacing equal, Increase vertical spacing, and Decrease vertical spacing will take a group of selected components (green ID labels) and adjust the vertical spacing between components using the component with the blue ID label as the baseline component.

The steps to configure your HMI project for your Nextion Series and Model are usually done at the time of creating a New project. When you need to make changes, Device will launch the following window with the Device tab selected. First select the Nextion Series: T for the Basic models, K for the Enhanced models, and P for the Intelligent models. Then select your Nextion Model. For example: the Multi-touch Capacitive Nextion NX8048K070_011C, Select K for the Enhanced series and then the select the NX8048K070_011 Nextion Model.

Selecting the DISPLAY tab, the user can select the orientation and the Character Encoding. 0° is the native viewing angle for the selected model. Users can choose alternative orientations (90°, 180° or 270°) but this will not be the native viewing angle.

Character Encoding is default iso-8859-1. Select from the character encodings that make sense for your HMI project to best display your local character sets. There are a selection of single byte and double byte character sets available.

Note: An encoding is a character mapping of value to character. Computer systems and MCUs use numeric values and not characters. A byte numeric value 0x41 in single byte ASCII encoding will reference the character A. Your MCU will not send A, it sends byte 0x41 (which in many cases maybe mapped to the letter A), but does not explicitly mean 0x41 renders A in every encoding. A Byte value of 0xC4 can map to different characters in different encodings, or even be undefined (mapping to no character). While modern computers can do translations between many encodings, your MCU will likely not. It is useful to research the character encodings you are planning to use.

Note: While the Nextion Editor HMI project can only have one base character encoding. This does not prevent the inclusion of different encoded fonts within your HMI project. Building on the above explanation, when your MCU sends a byte 0xFF to the Nextion device, the component .font attribute is responsible for which Font resource the byte 0xFF is rendered in (provided the chosen font resource has a glyph to render and is not undefined).

If you desire to password protect your entire HMI project, selecting the project tab will bring up the Open Password Setting button. If an existing password exists, it will need be entered before a new password can be set. When a Password is lost, it is not retrievable. Fair warning is given: DO NOT LOSE YOUR PASSWORD. There is no recovery! A project with a lost password would need to be rebuilt! So, do not lose – or – do not use.

One-time update option will rename the *.tft file on your microSD card to a different extension after successful upload.  You can now also now choose to ignore your pictures (image resources) and fonts (library resources) at compile time.  While this is a small time saving step, it is recommended to turn these off when you are ready to create your final project compiled TFT.

Selecting ID to will toggle if the component .objnames are displayed in the upper left region of the component space. Yellow labelled components have a .vscope local, while black labelled components have a .vscope of global. (Hint: Event code is never global). When selecting multiple components, green labelled components indicate multiple components have been selected, while the one blue labelled component will be used as the baseline component. To change the baseline component while the group is still active selected, simply click on the already selected component you want to become the baseline component.

New to the Nextion Editor is the ability to Zoom the design canvas both in and out. Users can zoom from 20% to 600% using the slider, or increment steps using the + and – buttons on the ends of the slider. The value of the zoom is shown in percentage to the right of the Canvas Zoom. Clicking on the percentage zoomed allows you to reset the zoom back to an unzoomed 100% state. Note: Component dragging-by-edge (indicated by double ended arrow pointer) to move or resize components whether intended or accidental can cause an undesired snap-to effect in size and/or position where zoom is not at 100%. Calculation for the placement of component or edge must be to whole numbers and as such drag ending on partial-pixels can indeed effect component size, position or both.  In the event of undesired results, use the Undo (ctrl+z) to revert back to your previous unaltered state. Version v1.65.0 maintains edge-dragging to resize, a drag movement will not resize the component.

Selecting the C on the toolbar will open the Program.s tab in the Design Canvas area.  To return to the Design Canvas, click the Display Tab.  The Project Start Up code section is a newly introduced concept allowing for users to define and initialize additional int globals (such as sys0=0).  At the moment only int 32 bit signed integers are supported.  Additionally project start up code can be added in this section to be run before the HMI runs using Nextion Instructions.

Note: Nextion Preamble 0x00 0x00 0x00 0xFF 0xFF 0xFF NIS 7.19 and Nextion Ready 0x88 0xFF 0xFF 0xFF NIS 7.29 have been moved from firmware start notifications into Program.s as a printh instruction. Users can now choose to keep these notifications or discard by removing this printh line. Default values for dim, baud and recmod also prepopulate in Program.s as this is the recommended location for setting these variables (historically was recommended in Page Preinitialize Event before Program.s existed). Also important to note that once a page instruction or system variable dp assignment has been given the HMI will change to the desired page and will not return to Program.s to run instructions beyond the page change instruction.

When in the Project Startup Code, using the Comment or Uncomment on the tool bar will comment the selected line(s) or uncomment the selected line(s) in the same manner as the Event Pane does with user code.

Every HMI project needs to have at least one Page. Pages can be created and imported into your HMI project through the Page Pane. A Page is created with Add, deleted with Delete, and copied with Copy. Insert will create a new page before the highlighted page. Use the Move Up and Move Down to renumber the page number within the Page Pane. Using Delete all (Trash) will delete all pages within the project.

Pages can be renamed to a maximum of 14 characters and the page names are case sensitiv