Nextion simulator

I always wanted to have a touchscreen Interface in my projects which are related to arduino, raspberry pi and esp I earlier used the cheap Chinese touchscreen display which used to have resistive touchscreen. So, we are limited with the extent of the project.

Also debugging them is also is a pain in a ass. So, there is this Nextion HMI display which solves the need. Did you use this instructable in your classroom?

nextion simulator

Add a Teacher Note to share how you incorporated it into your lesson. Nextion 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 IoT or consumer electronics field. It is the best solution to replace the traditional LCD. This display is manufactured by Itead Studio. This display is graphically programmed using a software named Nextion editor which is also made by Itead Studio. Enough of the talks So let's get to some work. First of all this is not a full guide to use the display but rather it is a overview to get you started using this display because after you know the basics you can make anything on this very device.

This is important as there is little to no documentation provided and it takes a while to know everything.

Nextion Editor Software. Double click to open that file and the Nextion Editor Software will start. It will prompt you to set the display first.

First click the button that has your nextion display model on it. Then go the display mapbox gl draw react on the left and choose the orientation of the display.Pages: [1] 2. Seithan Jr. Tutorial on how to write code with Nextion and Arduino. Hello everyone, Although I am a new signed-in user, I have been watching and learning from the community of arduino.

Since then, the help from this site was very useful to achive many things. This is my first post and I, in turn, want to give some hours of hard work and knowledge back to the community. HMI file for Nextion and.

If you prefer to see more colors, you can go to my site, but I will also upload it here. If you want, you can see a short video on youtube on how the project works. HMI file and.

Nextion Display

Now, we are beginning to write the tutorial: Tutorial on how to write code with Nextion and Arduino. Communication protocol between Arduino and Nextion Display:. Re: Tuturial on how to write code with Nextion and Arduino. How we read and identifie the commands from Arduino's Serial port:.

Code: [Select]. We use them to store all of the lines of text. It will NOT adapt if there are more than twenty lines. In this case, we have to create more variables. Nextion has more space for variables than Arduino. For that reason, most times it is better to store the text on Nextion and doing all the reading and processing from there, letting Arduino and the Serial available for other tasks of the project.

The time to transfer the text array is very little, at the scale of milliseconds. Thus, we should prefer to perform most of the tasks on Nextion rather than Arduino. Component va0. Component va1. Component va2. And at the end, we print the b[cnt. It is also important to NOTE, that in the component array, we can put the variables and equations with numbers and the result of those, will be the number of that specific argument.

By pressing the down button b1we add to cnt. By pressing the up button b0we subtract by 1 the cnt. With the Hotspot's Press Event, we print four lines, starting with the one that has the same number as the cnt. When you press on t1, which covers all of the display, the touch event is going to print the first four lines, from the values we have sented, doing the following: Code: [Select].

This command uses a specific protocol of our own. Its function on how we organize our commands and make Arduino identify them, will be explained later at its own paragraph. How to create a variable, change it to global scope and use it across different pages:. How to make a useful pop-up message on Nextion:. How to change components' attributes at Nextion from Arduino:.

How to use the timer variable, a non-visible component:. How to add a numeric variable inside a text same with Arduino :.Thanks for your review! I'm considering using the Nextion in a low volume consumer product which you said you would be uneasy about! I've considered other options like 4D Systems and MikroElektronika, however due to the likely final price point, keeping component costs down is imperative With the complexity and sophistication of embedded systems today, a necessary component is a user interface that is more than an indicator LED.

Today it is expected that the user will be updated with relevant and timely information in an aesthetically pleasing manner. While I have yet to meet an embedded developer who enjoys GUI design and programing there are some easy and some not so easy methods to accomplish this. Just recently I was placed with the task of creating a controller with a touch display. The first task was to try to use buttons to increase and decrease a displayed number and then load that to the control unit.

After a large undisclosed number of hours neither have yet to be successfully accomplished. The support consisted of being sent completed projects to examine and run in simulation, sadly this did not help.

Support documentation for a Control Display. Interestingly towards the end of my time evaluating this unit I was asked by ITead Studio if I could review their Nextion display. Yes there is a demo that is very similar, but with in 10 minutes I had the demo running on the Nextion. I will say the demo may not have looked all that pretty but with another 20 - 30 minutes that could have been rectified. Demo increasing both numbers and text values with input buttons.

Out of the Box.

Nextion 7" Diamond series HMI on Marlin Kimbra firmware

The displays ship in a neatly packed box that fits the displays quite snuggly. The kit includes the display 3. The connector allows the display to be easily powered from any USB power source. Nextion package and the contents.

Screen, wire harness, and USB power connecor. When the unit is powered up for the first time there is a clean and neat welcome screen that displays the ITead name and logo as well as 6 demos. Going through the demos is not too impressive as they show the functions available in a very simplified form, that is except for the last one. The last demo allows an evaluator to see that the display is not merely a touch screen but can also run intelligent code.

The demo is to find 5 differences between the two pictures and shows three hearts as a player's lives, when a wrong area is selected these hearts go dark one at a time. While this may seem trivial, it clearly shows that the display has some computational abilities.

The User Interface. Once installed opening the IDE presents the user with a clean and well organized user interface. The IDE is organized into 8 sections as shown in the image below, each section has a unique task to perform or information to convey. Nextion IDE to design and program the user interface. The 8 sections functions are as such.Nextion makes inexpensive touchscreen LCD displays that come with Nextion Editor, a visual editing software which allows you to design your own interfaces all by yourself, even if you don't have any coding background knowledge.

The Nextion LCD touchscreens are great for Arduinos because most of their functionality and processes are self-contained in the screen. The benefit is that the Arduino does not use a lot of resources or pins dealing with a high resolution touchscreen, it simply sends serial commands to the screen or receives event notifications such as button presses.

The best thing about this LCD is that we can program it via a visual editing software. And we can control it via Arduino or other MCU.

It's very easy to use this display which I will show in this tutorial. Nextion LCDs are available in various resolutions and sizes, here is an example. For our project we will make a simple loading progress graphic that shows how much of the program has loaded. First, create two pictures:. Configure it like it's shown on the picture pic2. Set it to 'Image' so we can set pictures in progress bar. We have bpic and ppicbpic is used for lighter picture and ppic is used for darker one.

Val is for loading value try to set it to other numbers and you will see progress. Go to 'Upload, select com port and hit go. You will see something like this. When the value goes to max it will go back to 0 only for testing.

nextion simulator

Step 1. What is Nextion? Software First you'll need to download the Nextion software. For now it's only available for Windows, but on a Mac you can use Parallels Desktop. Install software. On left side you will see buttons 'Add' ,'Insert','Delete' This is for you pictures. Click on 'Add' to insert all your photos for this project. Most important thing is the 'add component' button where you have all the components for your projects like buttonspicturestext, progress bar etc.It also provides details to the various command formats that are used to send Nextion button press information or other data.

This wiki information has been updated to include the hardware UART serial features that were added late Display sizes for both families ranges from 2. The Enhanced version has all the capabilities of the basic model, but has more memory, faster processor, and GPIO. Please note that the examples shown in this wiki have been tested on the basic version.

nextion simulator

In addition to the two product families, there are also region specific models. More specifically, there's the Chinese market TJC series supported by tjc To be blunt, unless you have a project that specifically requires the Chinese market TJC display, our recommendation is to use the global market NX series. Be aware that some sellers do not specifically mention the exact model number. If you are unable to confirm the model information then it is advisable to choose a different supplier.

Name: Enter the device's name here 40 characters maximum. This connects to the Nextion's TX pin. This connects to the Nextion's RX pin. Both the Nextion and ESP utilize 3. However, reliability of receiving characters sent from the Nextion may suffer due to ESPEasy's background interrupt conflicts. So using this method requires extra coding to ensure that ESPEasy correctly receives Nextion's serial data. Hardware Serial is extremely reliable and can support a variety of baud rates.

Furthermore, it requires disabling ESPEasy's serial log feature; This is automatically done when hardware serial is chosen. Omitting the transistor will prevent the ESP from booting correctly! Advice Tip: Despite the extra work, the hardware serial method is strongly recommended. If all these conditions cannot be met then soft serial must be used. Baud Rate: Select required serial baud rate. This setting applies only to hardware serial. Line N : Up to ten different Nextion command statements can be created that automatically execute at each timer interval.

This provides a convenient way to periodically populate your Nextion display with data from the ESPEasy system variables. Here's an example that updates Progress Bar j1 on page Be mindful that Nextion's Progress Bar component expects an integer value that ranges from 0 to it does not support float values.

A device's value can be easily converted to integer precision by setting the Decimal entry to zero 0 in the Values section of a device plugin. Resend Values at Interval: When selected, the idx and value data is resent at each interval time. Typical applications would leave it unchecked disabled. Send to Controller: If selected the idx and value data will be automatically sent by the active controller using its configured protocol. Interval: Enter the repeating interval time in seconds ; Set to zero 0 to disable the timer.

At each interval time period the Nextion Command Statements are executed. If the Resend Values is enabled then idx and value data are also resent at the interval. Name 1: idx is the main Index key variable. For example, it can be a unique number that is sent by a Nextion touch button that has been is pressed or released. But it is not limited to that purpose; It may be used for any data that needs to be passed from the Nextion display to ESPEasy. Name 2: value is a sub-variable related to idx.Using this tool, users can start creating TFT based devices in a faster and easier way.

Examples are fully commented and explained, allowing a quick start in designing user interface. Refer to the available examples to learn how to create GUI application will help users to finish their project with minimum of time and effort.

Nextion Editor Guide

Download Examples: File:example. When user start a project, Font generating is the foremost thing they need to do. Only by taking this step can users input characters in Text component. It supports all your local fonts now. Save the generated font in the zi folder. Actually, it is a color decimal converter. This will be very helpful if they use commands to do GUI editing.

It is used to refresh a project, but it does not save the project. Click it, there will be a simulator pop-up window. Users can test the project they have done or input codes to know whether their project is going right or not.

So far, there are text, button, progress bar, picture, crop, gauges, hotspot, waveform, slider, timer, variable, number, dual-state button components available.

Delete the selected components. Undo : repeat last operation. Redo : cancel last operation. Used for changing user device model, project display direction. Formatting selected components. User can import the pictures in this panel by clicking Add button. Note that, every picture has its own ID number, so if users insert or delete any images, the ID number will get changed.

Users can use the tool to move their image up or down. Font library is very important! Click here to learn how to generate a font. For example, using 16 and 40 pounds font size in a project, user will need to generate two fonts, one will be 16 pounds, and the other will be 40 pounds.

Nextion LCD Display tutorial

In the font library panel, every font has its unique ID number, and so delete any one will change its Font ID number. When users editing the text attributes, there is a font option. The value users can input is the Font ID number. Users can add, insert, delete, and copy a page by using the bottom buttons. By double-clicking a page, users can define name for a page, and press enter key on computer keyboard to save the changes.

Note that, only by pressing enter button of the keyboard can save the defined name. Users can drag-and-drop any component in the working area.This document goes through various features of the current Nextion Editor.

Note: Nextion Editor has undergone an extensive overhaul in support of the new Intelligent Series similarly with v0. As such, the new Nextion Editor is not expected to retain every previous behaviour exactly.

Old Nextion devices pre v0. With the new, then there are indeed new behaviours and new possibilities. 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 Seriesfor the Enhanced K Series and for the Intelligent P Series. The latest version of the Nextion Editor can be downloaded from [ here ].

The Nextion Editor can be set to a Blue or Black themed style Style is found in the upper right corner. 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 settings by selecting the Reset layout under the Setting menu. 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 ms for the Debug Simulator can be adjusted from 20ms to ms. 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 neede, you can reset these settings by selecting the Reset layout under the Settings menu. 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:. When an HMI project is not currently loaded, you can:.

nextion simulator

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 import individual pages if 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.

The option to open the output folder location in Windows Explorer can be made by clicking only open the output folder link. These are covered individually in Section 3 of this Guide. The Setting menu contains two items: Configuration and Reset layout. 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 ms 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 and Enhanced models as out of bounds positioning is not permitted and will cause the project to not compile.

Finally, the default Font used for the Nextion Editor can be changed to suit the users taste. 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 Instruction Set menuitem will launch the Nextion Instruction Set in your default web browser.

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