adafruit tft lcd screen made in china

STONE Technologies is a proud manufacturer of superior quality TFT LCD modules and LCD screens. The company also provides intelligent HMI solutions that perfectly fit in with its excellent hardware offerings.

STONE TFT LCD modules come with a microcontroller unit that has a 1GHz Cortex-A8 CPU. Such a module can easily be transformed into an HMI screen. Simple hexadecimal instructions can be used to control the module through the UART port. Furthermore, you can seamlessly develop STONE TFT LCD color user interface modules and add touch control, features to them.

The famous china LCD display manufacturers. It is the world’s leading semiconductor display technology, products, and services provider. Products are widely used in mobile phones, tablets, laptops, monitors, televisions, cars, digital information displays, and other display fields.

Focus on the development and production of china HMI (Intelligent TFT LCD Module) LCD display manufacturers, production, and sales of LCD display modules for 16 years. The company master TFT LCD technology and software system. The main products are industrial electronic series, advanced series, and civil and commercial series. Application scenarios include automation systems, medical beauty equipment, vending machines, smart lockers, energy, and power equipment (refueling machines, charging piles), elevators, smart homes, and offices, measuring instruments, public transportation, etc.

Mainly committed to the r&d, production, and sales of TFT-LCD/stn-LCD /OLED display modules, it is a modern high-tech enterprise that provides a full range of product LCD module technology and manufacturing support services for TCL group member enterprises and international electronic enterprises.

Set an LCD display module (LCM), capacitive touch screen (CTP), fully integrated touch display module (TDM), LCD thin technology development, production, and service in one national high-tech company.

Domestic size of the top four small and medium-sized flat panel display manufacturers. The products cover medium and small-size TFT-LCD display modules and high-precision miniature cameras, which have been widely used in the fields of smartphones, medical treatment, and industrial display.

The LCD business division is specialized in the r&d, production, and sales of the LCD display (LCD) and LCD module (LCM) series of products. It has ten semi-automatic COG production lines, 1.5KK of monthly COG products, covering COG, TAB, COB, and other LCD module products, TFT, CSTN, and other color LCD display products, and OLED display products. touch screen manufacturers.

Byd IT products and business mainly include the establishment of rechargeable batteries, plastic parts, metal parts, hardware, and electronic products, mobile phone keys, microelectronics, LCD display module, optoelectronic products, flexible circuit board, chargers, connectors, uninterruptible power supply, dc power supply, solar energy products, mobile phone decoration, mobile phones ODM, mobile phone test, assembly operations, laptop, ODM, manufacturing, testing and assembly operations, etc.

Star source products cover backlight, LCD, optical diaphragm, etc., widely used in LCD modules, photo frames, tablets, portable, instruments, and meters.

The company has long invested in the research and development of the TFT-lcm LCD module, focusing on consumer products and industrial control products. Currently, 3.5-11.6 inch modules are available, among which 4.0, 4.3, 5, 6, and 10.1-inch products have reached the leading level in the industry. Products are mainly used in vehicles, mobile TV, PMP, DVD, EPC, security, and industrial control products.

Professional development, design, production, and sales of LCD display module (LCM), products cover COB, TAB, COG, and other LCD module products, TFT, CSTN, and other color LCD display products, as well as OLED display products. Products are widely used in mobile phones, communications, digital products, household appliances, industrial control, instrumentation, vehicle display, color screen display, and other fields.

Mainly engaged in research and development, manufacturing, and sales of the LCD display and LCD display module. Products are widely used in all kinds of electronic products and equipment HMI interface, such as medical equipment, instruments and meters, audio, household appliances, telephone and clocks, game machines, and other different types and use.

Focusing on the LCD module industry, is a collection of research and development, manufacturing, sales as one of the high-tech enterprises. TFT module size from 1.44 to 7 inches, product specifications cover QVGA, WVGA, qHD, HD, etc., the market prospects are broad.

The display manufacturers company mainly researches and develops the LCD display, charger, battery, and other products of mobile communication mobile phone, telephone, MP3, and other high-tech products.

The company integrates research and development, design, production, sales, and service into one, and provides comprehensive touch and display integrated solutions for the complete machine touch screen manufacturer of smartphones, specializing in the development and manufacture of Sensor sensors, capacitive touch screens (GFF/OGS/GG), small and medium-sized LCD (TN/HTN/STN/CSTN/TFT) and corresponding modules and glass cover plate products. The company’s products are widely used in communication terminals (smartphone, tablet computer, etc.), household appliances, car electronics, digital products, and other industries, exported to Europe and America, Japan and South Korea, Singapore, and other countries.

Mainly produces medium and small-size LCD display module (LCM), multi-point capacitive touch screen (CTP), and other high-tech products. At present, more than 1000 models of 1.2-12.1 inch products have been developed. Products are widely used in mobile phones, GPS, mobile TV, tablet computers, digital photo frames, e-books, and other consumer electronics.

It is a professional development and production of small and medium-sized flat panel display upstream materials manufacturers. The company’s main products include LCD display panels, color filter, ITO conductive glass (CF), TFT LCD panel, and capacitive touch screen with multi-touch control functions (sensor and the final module), can provide complete medium and small size flat-panel display device using the solution of raw materials, product specifications varieties complete, widely used in 10.4 inches below the smartphone, tablet, PMP, digital camera, digital camera, GPS and other products of the display panel.

Now it is divided into mobile phone business division: the main products are (2.8-6) inch and the LCD screen and capacitive screen all fit together.MID tablet computer and ultrabook computer division: the main production product size is (7-15) inch capacitive touch screen.

Committed to 3.5~4.3 inches, 5 inches, 5.88 inches, 6.2 inches, 7.0 inches, 8.0 inches, 9.7 inches, 10.1 inches, 12.1 inches medium size FOG, backlight process production, products should be widely used in high-end communication phones, tablets, notebook computers, car TV, navigator, and other display products. automotive LCD display touch screen manufacturers.

The company has an injection molding business division, SMT business division, FPC business division, backlight business division, irrigation crystal business division, TFT module business division, SIN module business division, products involving touch screen, LCD display module, backlight, black and white screen, flexible circuit board.

Engaged in the laptop, tablet, smartphone, computer high-performance board card, LCD module, and other electronic products research and development, production, and sales of high-tech private enterprises.

Is a professional engaged in LCD display module, electronic components, production, design, research and development, sales as one of the high-tech enterprises. Products are widely used in mobile phones, game consoles, PDA, portable DVDs, video phones, intercom doorbells, car video, industrial control medical, and other fields.

STONE provides a full range of 3.5 inches to 15.1 inches of small and medium-size standard quasi TFT LCD module, LCD display, TFT display module, display industry, industrial LCD screen, under the sunlight visually highlight TFT LCD display, industrial custom TFT screen, TFT LCD screen-wide temperature, industrial TFT LCD screen, touch screen industry. The TFT LCD module is very suitable for industrial control equipment, medical instruments, POS system, electronic consumer products, vehicles, and other products.

While I was looking for a TFT display for a project with Arduino, I found on several webstores some displays based on the ST7735 chip by Sitronix (datasheet).

Based on its datasheet, the ST7735 chip has a SPI (Serial Peripheral Interface) interface, but the pin names on the silk screen of my display “seem” to suggest an I2C interface (SDA, SCL…):

Adafruit wrote a fantastic tutorial to explain how to use them, here I only want to show you how to setup the display for the connections I made earler:

If you’re using a board based on the esp32 chip and you need to display bitmap images, give a look to my library, SPIFFS_ImageReader, which perfectly integrates with the ones by Adafruit!

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.

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

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

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 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 ST7789 TFT module contains a display controller with the same name: ST7789. It’s a color display that uses SPI interface protocol and requires 3, 4 or 5 control pins, it’s low cost and easy to use. This display is an IPS display, it comes in different sizes (1.3″, 1.54″ …) but all of them should have the same resolution of 240×240 pixel, this means it has 57600 pixels. This module works with 3.3V only and it doesn’t support 5V (not 5V tolerant).

As mentioned above, the ST7789 TFT display controller works with 3.3V only (power supply and control lines). The display module is supplied with 3.3V (between VCC and GND) which comes from the Arduino board.

The first library is a driver for the ST7789 TFT display which can be installed from Arduino IDE library manager (Sketch —> Include Library —> Manage Libraries …, in the search box write “st7789” and install the one from Adafruit).

LCD, or Liquid Crystal Displays, are great choices for many applications. They aren’t that power-hungry, they are available in monochrome or full-color models, and they are available in all shapes and sizes.

Waveshare actually has several round LCD modules, I chose the 1.28-inch model as it was readily available on Amazon. You could probably perform the same experiments using a different module, although you may require a different driver.

The Waveshare Wiki does provide some information about the display and a bit of sample code for a few common controllers. It’s a reasonable support page, unfortunately, it is the only support that Waveshare provides(I would have liked to see more examples and a tutorial, but I guess I’m spoiled by Adafruit and Sparkfun LOL).

Open the Arduino folder. Inside you’ll find quite a few folders, one for each display size that Waveshare supports. As I’m using the 1.28-inch model, I selected theLCD_1inch28folder.

Once you do that, you can open your Arduino IDE and then navigate to that folder. Inside the folder, there is a sketch file namedLCD_1inch28.inowhich you will want to open.

Unfortunately, Waveshare doesn’t offer documentation for this, but you can gather quite a bit of information by reading theLCD_Driver.cppfile, where the functions are somewhat documented.

This library is an extension of the Adafruit GFX library, which itself is one of the most popular display libraries around. Because of this, there isextensive documentation for this libraryavailable from Adafruit.  This makes the library an excellent choice for those who want to write their own applications.

As with the Waveshare sample, this file just prints shapes and text to the display. It is quite an easy sketch to understand, especially with the Adafruit documentation.

The TFT_eSPI library is ideal for this, and several other, displays. You can install it through your Arduino IDE Library Manager, just search for “TFT_eSPI”.

The Animated Eyes sketch can be found within the sample files for the TFT_eSPI library, under the “generic” folder.  Assuming that you have wired up the second GC9A01 display, you’ll want to use theAnimated_Eyes_2sketch.

The GC9A01 LCD module is a 1.28-inch round display that is useful for instrumentation and other similar projects. Today we will learn how to use this display with an Arduino Uno and an ESP32.

@DonpK Sorry, but I can"t follow what you are testing here. When I look over your examples the Adafruit version is using Hardware SPI and the GUIslice config has a different set of pins in use, maybe software spi.

Again, your two test programs don"t make a fair comparison so I modified them for your display and made the Adafruit and GUIslice versions as close as possible. Now I don"t have your hardware so I can"t test further so that"s up to you and Calvin but at least the numbers will be correct as far as comparing them side by side.

I am testing two different TFT-LCD displays - the Adafruit 3.5" breakout display, and the East Rising 3.5" display. Both displays are using ATMega1284P microcontrollers. Both displays are using SPI.

I"ve attached your modified test sketches as well as a text file giving the redraw time results. There are four sets of timings: one for each display using the Adafruit graphicstest sketch and one for each display using the GUIslice sketch. The GUIslice library is GUIslice-WIP-CapCalib_01-04-21 which Cal wrote for the East Rising display. The Adafruit display uses the regular

@Pconti31 @ImpulseAdventure Thanks Paul. I tried your version of ili9488.cpp. On the East Rising display, the PCDPKgraphicstest.ino redraw timing sketch runs about 8 times faster with your ili9499.cpp versus the ili9499.cpp file which is in the Arduino ILI9499 library. However the same sketch redraws 15 times faster on the Adafruit. Note that the East Rising display is using GUIslice-WIP-CapCalib_01-04-21 and Adafruit display uses GUIslice 0.16.0. Note also, that the "regular" ILI9488 library is a version Cal gave me last November when we started working on this project. I"m not sure whether he modified the standard Jaret Burkett ILI9488 library.

@DonpK @ImpulseAdventure I don"t own one so maybe you a should post a new issue asking for recommendations from someone using such a display. You could also try using a faster MCU like the ESP32 with TFT_eSPI which claims support for ILI9488 spi displays. Also, the chinese code lovyan03/LovyanGFX claims to be even faster then TFT_eSPI.

Also, Don -- I may have overlooked something, but I"m wondering if you might be able to use the latest GUIslice version instead of the CapCalib version? I believe all of those changes were integrated. That way, perhaps one could compare apples-to-apples with the same code versions of GUIslice? ie. use the same "latest" GUIslice for both the Adafruit display and EastRising display modes?

I ran the redraws tests on the two different TFT-LCD displays - the Adafruit 3.5" breakout display, and the East Rising 3.5" display. Both displays are using ATMega1284P microcontrollers. Both displays are using SPI. Both tests used the latest GUIslice Version 0.16.1.2

Both tests used PCDPKgraphicstest_V2.ino (attached) which redraws the screen alternating between two colors. The Adafruit displays uses ard-adagfx-hx8357-simple.h and the EastRising display uses ard-shld-eastrising_35_ili9488_cap.h (attached).

The Adafruit display redraws about 15 times faster than the EastRising display - 541,704µS for the Adafruit versus 8,422,840µS for the EastRising display.

It only supports 18bit color not 16bit color like the Adafruit. This means it needs to write one extra byte for each color. Or 153600 extra writes for a screen fill.

I"ve noticed a problem that does not occur on either the Adafruit or EastRising displays using GUIslice Ver. 0.16.0, but does occur on both displays using Ver 0.16.1.2. If a button is pressed, say on the KeyPad, the button will freeze up in the "Selected Color" mode. Sometimes repeatedly pressing the button will get it to complete its function, sometimes the entire display is frozen and needs to be rebooted. This is an intermittent problem.

I believe you would be better off coming up with a small repeatable sample with a list of touches that cause the problem using the standard Adafruit TFT display and posting it. Leaving the debugging to Calvin.

The problem involves the display freezing after a touch. I"m using the latest versions of GUIslice and Builder. The problem does not occur on the Adafruit resistive display, only the EastRising capacitive display.

Using the keypad widget as an example, if the user touches the keypad digit very quickly, that is, the time the finger is in contact with the screen is very brief, the digit is entered properly. However, if the finger stays on the display for a slightly longer period of time, occasionally the display freezes, that is, the keypad digit changes to its "selected" color, but the digit is not entered. The key needs to be touched again for the digit to be entered.

I"ve also contacted the person who has written a driver for the FT6236 which is the actual controller in the EastRising display, not the FT6206, although Adafruit claims their library works with the FT6236.

I"ve attached a screenshot video showing what"s happening and the difference between short screen taps and longer ones. Sorry is so short, but the file size limit appears to be 10mB

The issue involves what I"ll call "short press" and "long press" and since it"s not clear exactly how long the screen must be pressed for a "long press", it"s not possible to exactly reproduce the freeze a 100% of the time, but it happens regularly.

After viewing your video I tried my Mega with adafruit"s 2.8 ili9341 display with using the stmpe610 resistive touch chip and easily reproduced the problem using ex26. This is using GUIslice version 0.16.1.3.

Great! I’m really glad to hear that it was observed on the Adafruit 2.8 resistive since that means I should be able to recreate it on my own hardware too.

While I couldn"t reproduce the same behavior with my Adafruit 2.8" resistive display on ex26 while long-touching & releasing over the same key, I can observe it if I touch a key and drag outside of the keypad before releasing the touch. It wasn"t actually a "freeze" -- it just didn"t release the glow state in this "TOUCH_UP_OUT" transition.

Sometimes it feels like everyone out there is using Arduino. It’s easy to find tutorials and libraries to get things working with Arduino, but if you want to use another platform you might have more trouble. [Tahmid] ran into this problem when he decided to try using a PIC32 to control a 2.2″ color TFT display from Adafruit.

Adafruit is really good about providing tutorials and Arduino libraries for their products. It makes it really easy to get up and running… if you are using Arduino. All of their libraries are open source, which means that the community can take them and modify them as needed. [Tahmid] decided to do exactly this and fork the Adafruit libraries over to the PIC32 platform in C. It’s a great learning experience. You get to see how (good or bad) other people code, and it immerses you in the differences between two different chip families.

He’s released the libraries online for others to use. He says that he’s heavily commented the code to try to make as self-explanatory as possible. The display interfaces with the PIC32 using SPI. The demo video below shows the screen up and running and demonstrates the crisp color graphics.