2.8 nextion hmi tft lcd display module free sample

Nextion is a Human Machine Interface （HMI） solution combining an onboard processor and memory touch display with Nextion Editor software for HMI GUI project development.

Using the Nextion Editor software, you can quickly develop the HMI GUI by drag-and-drop components (graphics, text, button, slider, etc.) and ASCII text-based instructions for coding how components interact on the display side.

Nextion HMI display connects to peripheral MCU via TTL Serial (5V, TX, RX, GND) to provide event notifications that peripheral MCU can act on, the peripheral MCU can easily update progress, and status back to Nextion display utilizing simple ASCII text-based instructions.

Nextion is a Human Machine Interface （HMI） solution combining an onboard processor and memory touch display with Nextion Editor software for HMI GUI project development.

Using the Nextion Editor software, you can quickly develop the HMI GUI by drag-and-drop components (graphics, text, button, slider etc.) and ASCII text based instructions for coding how components interact at display side.

Nextion HMI display connects to peripheral MCU via TTL Serial (5V, TX, RX ,GND) to provide event notifications that peripheral MCU can act on, the peripheral MCU can easily update progress and status back to Nextion display utilizing simple ASCII text based instructions.

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.

Additionally, we provide all the resources you need to complete this project. Here’s all the resources you need (be aware that you may need to change some settings on the user interface to match your display size):

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:

At this moment, you can start adding components to the display area. For our project, drag three buttons, two labels and one slider, as shown in the figure below. Edit their looks as you like.

Our second page will display data from the DHT11 temperature and humidity sensor. We have several labels to hold the temperature in Celsius, the temperature in Fahrenheit, and the humidity. We also added a progress bar to display the humidity and an UPDATE button to refresh the readings. The bBack button redirects to page0.

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.

Finally, you need a function for the bUpdate (the update button). When you click this button the DHT temperature and humidity sensor reads temperature and humidity and displays them on the corresponding labels, as well as the humidity on the progress bar. That is the bUpdatePopCallback() function.

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.

Nextion Editor is a free human-machine interface (HMI) GUI development software for Nextion Basic Series, Enhanced Series, and Intelligent Series. The software offers an easy way to create an intuitive and superb touch user interface even for beginners. Add a static picture as a background, define functions by components, you can make a simple GUI in minutes. The easy Drag-and-Drop components and simple ASCII text-based instructions will dramatically reduce your HMI project development workloads and develop projects rapidly in a cost-effective way. The Nextion product is the best balance HMI solution between cost and benefit with a low and decreased learning curve.

When the Deep Sleep Mode is activated, the device"s working current is down to 0.25 mA. Your Battery-Powered HMI device will last a longer working time with such a low power consumption.

The Font Generator can generate a ZI Font using user-selected combinations of UTF-8 subsets. There are 142 subsets covered all language characters so you can create the HMI project with any language content text.

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.

With the microcontroller and Nextion HMI display, you can easily make alightweight phone that is able to make calls, receive calls, send and also receive SMS. It uses a GSM module to connect to the mobile networkand Nextion display to visualize GUI interfaces.

Tags: Arduino, Arduino Uno, How to use the Nextion Editor, Nextion, Nextion HMI display, Smart LCD Display Module, NX4832T035_011, Nextion editor,IM150918001

NEXTION is a Human Machine Interface （HMI） solution combining a TFT touch display with an onboard processor and memory, developing by a free and downloadable NEXTION Editor software. Using the NEXTION Editor software, you can quickly develop the HMI GUI by drag-and-drop components (graphics, text, button, slider etc.) and ASCII text based instructions for coding how components interact at display side. With just 2 wires (RX,TX), NEXTION display quickly connects to MCU via 5V TTL Serial to provide event notifications that MCU can act on, and utilizes simple ASCII text based instructions so the MCU can easily provide progress and status updates back to your HMI user.

NEXTION is available in various TFT LCD display sizes including 2.4”, 2.8”, 3.2”, 3.5”, 4.3”, 5.0”, 7.0” . With a large selection to choose from, one will likely fit your needs.

The NEXTION Editor software offers an easy way to create the intuitive and superb touch user interface even for beginners. Add a static picture as background, define functions by components, you can make a simple GUI in minutes.

Easy-to-use components, touch event programming and customized GUI at screen side allow you to develop projects rapidly in cost-effective way. The TTL serial NEXTION display is the best balance HMI solution between cost and benefit with low and decreased learning curve.

We will use Nextion Basic Model NX4832T035 (3.5”) in this project. You can find this display datasheet here. If you have N letter after the model,for example, NX4832T035_011N - it means that it doesn"t have a touch sensor but if you have R letter NX4832T035_011R - it is with touch sensor.

To get started with Nextion, first you need to install Nextion Editor. Go to Nextion website and download the Nextion Editor v 0.53 by clicking on download exe.

Working area, this is where the graphical display is designed and shown. It is in this area a scale representation of the display is shown as a canvas on which to work. All desired components are added and arranged with in this area to represent how the final display should look.

Picture library, images used on the Nextion display need to be uploaded before hand. In order to do this all images first need to be imported to the IDE, the IDE then gives each image a unique number by which that image is referenced. It is then from this section that images and backgrounds can be selected and positioned in your GUI. Font library, text entered in the GUI needs to be setup to be correctly displayed on the display. To do this fonts are created in specific sizes and styles and then configured for the specific display. After completing the configuration the font can be added to the font list.

Page area, display screens are called pages. New pages are added and named here. It is with the names listed in this panel that different screens are selected by either internally written code or by a connected microcontroller.

Event area, code to control how the display behaves is added here allowing for simple display control to be achieved without the need of an external microcontroller.

The resources you need to complete any Nextion HMI project (be aware that you may need to change some settings on the user interface to match your display size):

To use an image as a background, it should be exactly of the same dimensions as your Nextion display. We’re using the 3.5” display, so the background image needs to be 480 x 320 pixels. Check your display dimensions and edit your background image accordingly. You can download wanted images and use them for the background from this website.

Let"s start adding components to the display area. Add three buttons, two labels and one slider from Toolbox area to Displayarea. Just click on required component.

Our second page let"s display data from the DHT11 temperature and humidity sensor. We have to add three labels to hold the temperatures in Celsius and Fahrenheit, humidity; progress bar to display the humidity and REFRESH button to update the readings. The bBack button redirects to page 0.

The .TFT file can be uploaded on to Nextion HMI display by 2 methods. One is the USB – TTL method where we connect USB-TTL device to serial port of display. Another method is SD card method.

USB – TTL method is very easy. Connect the USB to TTL adapter to PC and note the serial COM port allotted. Click on Upload button on the Nextion Editor. On the upload window select the COM port (for example, we had COM4) and set the Baud Rate to 115200. Click on GO button.

We have attached the ITEADLIB_Arduino_Nextion library on the begining of this project description. This library is configured for Arduino MEGA2560 by default. To make it work for Arduino Uno, you need to do the following:

Nextion displays are very useful in many projects. They can be used with any microcontroller since they require only two wire to connect. We can build so many projects with the Nextion displays. But the Nextion displays are far from perfect. The software for it is really poor, and the documentation inexistent. The hardware might be good but the overall user experience is poor.

ITEADLIB_Arduino_Nextion library. Download, unzip and add to libraries in your PC, for example C:\Users\toshiba\Documents\Arduino\libraries or in C:\Program Files (x86)\Arduino\libraries. This link you can find in Preferences of Adruino IDE program which installed in your PC. You can find more about it here.

If looking for the suitable nextion LCD display in bulk, it is a good idea. Buyers should consider buying lcd displays in bulk, which are a good option for them.

Buyers should consider buying lcd based on their specific needs and budget. If lcd is a good option for buyers, you should consider purchasing lcd from the wholesalers on Alibaba.

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.

Nextion Editor is a free human-machine interface (HMI) GUI development software for Nextion Basic Series, Enhanced Series, and Intelligent Series. The software offers an easy way to create an intuitive and superb touch user interface even for beginners. Add a static picture as a background, define functions by components, you can make a simple GUI in minutes. The easy Drag-and-Drop components and simple ASCII text-based instructions will dramatically reduce your HMI project development workloads and develop projects rapidly in a cost-effective way. The Nextion product is the best balance HMI solution between cost and benefit with a low and decreased learning curve.

When the Deep Sleep Mode is activated, the device’s working current is down to 0.25 mA. Your Battery-Powered HMI device will last a longer working time with such a low power consumption.

The Font Generator can generate a ZI Font using user-selected combinations of UTF-8 subsets. There are 142 subsets covered all language characters so you can create the HMI project with any language content text.

In this Arduino touch screen tutorial we will learn how to use TFT LCD Touch Screen with Arduino. You can watch the following video or read the written tutorial below.

As an example I am using a 3.2” TFT Touch Screen in a combination with a TFT LCD Arduino Mega Shield. We need a shield because the TFT Touch screen works at 3.3V and the Arduino Mega outputs are 5 V. For the first example I have the HC-SR04 ultrasonic sensor, then for the second example an RGB LED with three resistors and a push button for the game example. Also I had to make a custom made pin header like this, by soldering pin headers and bend on of them so I could insert them in between the Arduino Board and the TFT Shield.

Here’s the circuit schematic. We will use the GND pin, the digital pins from 8 to 13, as well as the pin number 14. As the 5V pins are already used by the TFT Screen I will use the pin number 13 as VCC, by setting it right away high in the setup section of code.

I will use the UTFT and URTouch libraries made by Henning Karlsen. Here I would like to say thanks to him for the incredible work he has done. The libraries enable really easy use of the TFT Screens, and they work with many different TFT screens sizes, shields and controllers. You can download these libraries from his website, RinkyDinkElectronics.com and also find a lot of demo examples and detailed documentation of how to use them.

After we include the libraries we need to create UTFT and URTouch objects. The parameters of these objects depends on the model of the TFT Screen and Shield and these details can be also found in the documentation of the libraries.

So now I will explain how we can make the home screen of the program. With the setBackColor() function we need to set the background color of the text, black one in our case. Then we need to set the color to white, set the big font and using the print() function, we will print the string “Arduino TFT Tutorial” at the center of the screen and 10 pixels  down the Y – Axis of the screen. Next we will set the color to red and draw the red line below the text. After that we need to set the color back to white, and print the two other strings, “by HowToMechatronics.com” using the small font and “Select Example” using the big font.

The 7.0"" enhanced Nextion HMI resistive/ capacitive touch display with an enclosure. Nextion screen is an upgraded LCD panel with more powerful features. There are two models: NX8048K070_011C and the NX8048K070_011R. The NX8048K070_011C is a powerful 7.0"" HMI TFT capacitive multi-touch display with enclosure, while the NX8048K070_011R is resistive touch panel with an enclosure. Both integrate with 32MB Flash data storage space, 1024 byte EEPROM, 8192 byte RAM, and with GPIO supported.

During the process of embedded system design, one of the most annoying, time-consuming things is the human-machine interface design. You need a slick chart or slick graph, quick page designs, you need resources stored for quick processing, you will find the answer inside the amazing Nextion Products Line.

Nextion is optimized to meet your specific human-machine interface needs using open and standardized interfaces in hardware and software, which allows efficient integration into your automation systems.

Man machine systems, Visualization, Humans Interaction, Cognition, Visual perception, Machine intelligence, Cybernetics, even robotics, are just a few examples, where HMI concepts play an important role.

Nextion is designed to work with minimal design effort as all of the data and control signals are provided by the device to interface directly to the display. This offers enormous advantage to the designer in development time and cost saving and takes away all of the burdens of low level design.

Nextion will help you quickly design visually in hours not weeks, turn long coding work into simple drag and drop operation, at a reasonable cost. What you only need, is interface a serial port to Nextion display hardware.

Demo speaks louder than words, here comes another video show you how quickly and easily an application can be designed by dragging and dropping objections to the virtual screen on a WYSIWYG design IDE - Nextion Editor.

Compare to the basic Nextion displays, the enhanced ones have added some new functions, such as: supporting built-in RTC, supporting save data to Flash, supporting GPIO, larger flash capacitive and larger CPU clock.