nextion usart hmi tft lcd made in china

A few weeks ago, I wrote this article about using a text variable as an array, either an array of strings or an array of numbers, using the covx conversion function in addition for the latter, to extract single elements with the help of the spstr function. It"s a convenient and almost a "one fits all" solution for most use cases and many of the demo projects or the sample code attached to the Nextion Sunday Blog articles made use of it, sometimes even without mentioning it explicitly since it"s almost self-explaining. Then, I got a message from a reader, writing: "... Why then didn"t you use it for the combined sine / cosine lookup table in the flicker free turbo gauge project?"105 editions of the Nextion Sunday blog in a little over two years - time to look back and forth at the same time. Was all the stuff I wrote about interesting for my readers? Is it possible at all to satisfy everybody - hobbyists, makers, and professionals - at the same time? Are people (re-)using the many many HMI demo projects and code snippets? Is anybody interested in the explanation of all the underlying basics like the algorithms for calculating square roots and trigonometric functions with Nextion"s purely integer based language? Are optimized code snippets which allow to save a few milliseconds here and there helpful to other developers?Looking through the different Nextion user groups on social networks, the Nextion user forum and a few not so official but Nextion related forums can be surprising. Sometimes, Nextion newbies ask questions or have issues although the required function is well (in a condensed manner for the experienced developer, I admit) documented on the Nextion Instruction Set page, accessible through the menu of this website. On top of that, there is for sure one of my more than 100 Sunday blog articles which deals not only with that function, but goes often even beyond the usual usage of it. Apparently, I should sometimes move away from always trying to push the limits and listen to the "back to the roots!" calls by my potential readers...Do you remember the (almost) full screen sized flicker free and ultra rapid gauge we designed in June? And this without using the built-in Gauge component? If not, it"s time to read this article first, to understand today"s improvements. The June 2022 version does its job perfectly, the needle movement is quick and smooth, and other components can be added close to the outer circle without flickering since there is no background which needs constantly to be redrawn. But there was a minor and only esthetic weak point: The needle was a 1px thin line, sometimes difficult to see. Thus, already a short time after publishing, some readers contacted me and asked if there were a way to make the needle thicker, at least 2 pixels.Recently, when playing with a ESP32 based NodeMCU 32S and especially with its WiFi configuration, I did as (I guess) everybody does: I loaded an example sketch to learn more about the Wifi library. When you set up the ESP32 as an access point, creating its own wireless network, everything is pretty straightforward. You can easily hard code the Wifi name (SSID) and the password. But what about the client mode ? Perhaps one needs to use it in different environments. And then, a hard coded network name and password are definitively not the best solution. Thus, I thought, why not use a Nextion HMI for a dynamic WiFi setup functionality?Although the Nextion MIDI I/O interface  has been primarily designed as an add-on for Nextion HMI screens to transform these in fully autonomous MIDI devices as shown in previous blog posts here, it is also of great use for any Arduino based electronic music project! Many MIDI projects for Arduino suffer from a lack good hardware support. There are sophisticated code, excellent libraries and an infinity of use cases, but afterwards, things tend not to work in a rather rough environment in the studio or on stage. That"s because two resistors and a few Dupont wires on a breadboard besides the Arduino are not really an interface which could drive your Synth, Sequencer, or Drum machine over a 5m long MIDI cable.

Alibaba.com offers 56 nextion manufacturer products. such as datasheet. You can also choose from original manufacturer, odm, and agency. As well as from tft, ips, and lcm.

Nextion is a Seamless Human Machine Interface (HMI) solution that provides a control and visualisation interface between a human and a process, machine, application or appliance. Nextion is mainly applied to IoT or consumer electronics field. It is the best solution to replace the traditional LCD and LED Nixie tube.

This solution includes hardware part - a series of TFT boards and software part - Nextion editor. Nextion TFT board uses only one serial port to do communicating. Let you get rid of the wiring trouble. We notice that most engineers spend much time in application development but get unpleasant results.

In this situation, Nextion editor has mass components such as button, text, progress bar, slider, instrument panel etc. to enrich your interface design. And the drag-and-drop function ensures that you spend less time in programming, which will reduce your 99% development workloads. With the help of this WYSIWYG editor, GUI designing is a piece of cake.

This is a powerful 3.5"" HMI, which is member of Nextion family. Features include: a 3.5" TFT 480 x320 resistive touch screen display, 4M Flash, 2KByte RAM, 65k colors.

If you’re a Nextion user you might have run across the name TJC. TJC is Taojin Chi, a Chinese company that is somehow affiliated with Nextion and which Nextion generally denies any involvement with.

Apart from one being in Chinese and one in English, these too are identical. All features, buttons, etc are the same. When pressed, the Nextion support crew will tacitly acknowledge that TJC is the same product, but is supposed to only be sold in mainland China. TJC panels typically sell for less than half the price of the equivalent Nextion panel. Anyone selling TJC outside of mainland China is pretty quickly shutdown, presumably by the Nextion team to protect their profit margins.

The challenge with this is that the source (HMI) and compiled (TFT) files for each device are nearly identical but region-locked, so you cannot use a Nextion HMI in the TJC editor and vice versa, nor can you flash a Nextion TFT to a TJC panel, etc. After some basic investigation this appears to be due to security measures enabled on the STM32 processor which prevents simple hardware attacks from allowing the translation.

There have been tools created which tweaked the HMI or TFT files to allow cross-compatibility, but those tools no longer work on recent firmware releases. This is an ongoing area of research, which is explicitly protected in the US by interoperability exceptions outlined in the Digital Millennium Copyright Act (DMCA) under 17 U.S. Code § Section 1201 subsection (F) paragraph (1).

So that’s the deal - TJC is the Chinese Nextion, (officially) sold only in China, and the tools for programming it are only offered in Chinese language. The Nextion folks freak out whenever anyone brings it up, because they are busy collecting 100% extra $$$ whenever they can sell you a Nextion LCD instead of a TJC LCD.

This post is an introduction to the Nextion display with the Arduino. We’re going to show you how to configure the display for the first time, download the needed resources, and how to integrate it with the Arduino UNO board. We’ll also make a simple graphical user interface to control the Arduino pins.

Nextion is a Human Machine Interface (HMI) solution. Nextion displays are resistive touchscreens that makes it easy to build a Graphical User Interface (GUI). It is a great solution to monitor and control processes, being mainly applied to IoT applications.

The Nextion has a built-in ARM microcontroller that controls the display, for example it takes care of generating the buttons, creating text, store images or change the background. The Nextion communicates with any microcontroller using serial communication at a 9600 baud rate.

To design the GUI, you use the Nextion Editor, in which you can add buttons, gauges, progress bars, text labels, and more to the user interface in an easy way. We have the 2.8” Nextion display basic model, that is shown in the following figure.

The best model for you, will depend on your needs. If you’re just getting started with Nextion, we recommend getting the 3.2” size which is the one used in the Nextion Editor examples (the examples also work with other sizes, but you need to make some changes). Additionally, this is the most used size, which means more open-source examples and resources for this size.

To get started with Nextion, first you need to install Nextion Editor. Go to https://nextion.itead.cc/, select the Resources tab, Download > Nextion Editor and install Nextion Editor. You can either download the .zip file or the .exe file.

Connecting the Nextion display to the Arduino is very straightforward. You just need to make four connections: GND, RX, TX, and +5V. These pins are labeled at the back of your display, as shown in the figure below.

You can power up the Nextion display directly from the Arduino 5V pin, but it is not recommended. Working with insufficient power supply may damage the display. So, you should use an external power source. You should use a 5V/1A power adaptor with a micro USB cable. Along with your Nextion display, you’ll also receive a USB to 2 pin connector, useful to connect the power adaptor to the display.

The best way to get familiar with a new software and a new device is to make a project example. Here we’re going to create a user interface in the Nextion display to control the Arduino pins, and display data.

We won’t cover step-by-step how to build the GUI in the Nextion display. But we’ll show you how to build the most important parts, so that you can learn how to actually build the user interface. After following the instructions, you should be able to complete the user interface yourself.

Open Nextion Editor and go to File > New to create a new file. Give it a name and save it. Then, a window pops up to chose your Nextion model, as show in the figure below.

We’ll start by adding a background image. To use an image as a background, it should have the exact same dimensions as your Nextion display. We’re using the 2.8” display, so the background image needs to be 240×320 pixels. Check your display dimensions and edit your background image accordingly. As an example, we’re using the following image:

Once the GUI is ready, you need to write the Arduino code so that the Nextion can interact with the Arduino and vice-versa. Writing code to interact with the Nextion display is not straightforward for beginners, but it also isn’t as complicated as it may seem.

A good way to learn how to write code for the Arduino to interact with the Nextion display is to go to the examples folder in the Nextion library folder and explore. You should be able to copy and paste code to make the Arduino do what you want.

In this post we’ve introduced you to the Nextion display. We’ve also created a simple application user interface in the Nextion display to control the Arduino pins. The application built is just an example for you to understand how to interface different components with the Arduino – we hope you’ve found the instructions as well as the example provided useful.

In our opinion, Nextion is a great display that makes the process of creating user interfaces simple and easy. Although the Nextion Editor has some issues and limitations it is a great choice for building interfaces for your electronics projects. We have a project on how to create a Node-RED physical interface with the Nextion display and an ESP8266 to control outputs. Feel free to take a look.

I reviewed some Nextion touchscreen a while ago. Those were 2.4″ and 5″ serial TFT displays with optional resistive touch support that could be used in standalone mode, or connected to an MCU board over UART to control external hardware. The user interface could be designed and emulated in Windows based Nextion Editor program before uploading it to the display via UART or micro SD card. ITEAD Studio has recently launched Nextion Enhanced NX8048K070 family of 7″ displays with resistive or capacitive touch panels, and support for GPIOs. The company sent me the capacitive model with enclosure for evaluation, so I’ll have a quick look at the hardware and Nextion Editor in this mini review.

Nextion Editor is a Windows program, but a while ago, I was told it also worked with Wine in Ubuntu. So I downloaded the latest version (v0.47), and while the installation started, it eventually failed in Ubuntu 16.04. So I reverted to using Windows 7 in VirtualBox. I also downloaded and extracted Enhanced_Nextion_5.0-7.0_Demo.zip found at the bottom of Wiki page, which I then opened from Nextion Editor.

I just added text. It should have been easy, but I was very confused at the beginning, since nothing would show up when I clicked on “Text” in toolbox. I could change the attributes, but the text would not be displayed. I went back to check the old review, and I used “Add Component” menu in Nextion v0.30 at the time, but that menu does not exist anymore. Finally, I noticed the 800×480 display was not shown completely, on the text was located on the top left of the UI. I delete the dozen text items I had created, and added “CNXSoft was here!” at the end of the list. The user interface is not really intuitive, so I’d still recommend to read the user guide, even some of the parts are outdated, as it should help getting started, and they have examples with Arduino. To control GPIOs on the display, you’d need to use cfgpio code. In case, you run into troubles because the documentation is not quite as good as expected, you can always try your luck in the forums.

It took 6 minutes and 35 seconds to upload the ~4MB user interface to the display, so it’s not really fast. That mean if you have ~32MB UI, it would take close to 50 minutes. In that case, it would be much faster load the UI from the micro SD card. In that case, you need to copy the .tft file found via Nextion->File->Open build folder.

HMI Displays are becoming increasingly popular as a result of their intelligence, and NEXTION is one of the major players in HMI Display Production, which has introduced a range of different kinds of Displays at a very affordable cost.

NEXTION offers an advanced level of displays at an affordable cost than any other competitor brand in the market, making them ideal for the one who wants to start some Projects through touch displays. This type of Display has inbuilt audio, video, and animation play functions which makes it smart.

Nextion NX4832T035-3.5″ HMI TFT LCD Touch Display Module is a seamless Human Machine Interface (HMI) solution that provides a control and visualization interface between a human and a process, machine, application, or appliance. Nextion is mainly applied to the Internet of Things (IoT) or consumer electronics field. It is the best solution to replace the traditional LCD and LED Nixie tubes.

The operating Voltage of the Display is lies between 4.75 to 7 V also this TFT Screen Intelligent Display Module with integrated 4-wire Resistive Touch Panel For Arduino DIY NX4832T035 480 x 320 is a powerful 3.5” HMI, which is a member of the Nextion family. The following are some of the features: a 3.5 “TFT 480 x 320 resistive touchscreen, 16M Flash, 65K colors.

Why use Nextion ? -Firstly, Nextion is easy to use. With the Nextion Editor software, you can easily create an intuitive touch user interface even if you are a beginner.

-With the drag and drop components and simple ASCII text-based instructions, you do not have to spend a huge amount of time on your HMI project development.

Nextion Display Connection Nextion display has a built-in ARM microcontroller that controls display, for example it takes care of generating buttons, creating text, store images or change background. Nextion display communicates with any microcontroller using serial at a 9600 baud rate.

Nextion Display Weather Station Kit Nextion display could be used together with other accessories to assemble DIY kit, for example weather station kit.