What’s Nextion

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.

Our mission is to reduce the HMI development workloads.


Nextion Offers an Ease of Use and Cost-effective HMI Solution for You.


5 Years LTA

Nextion guarantees the availability of all Series products for a minimum of 5 years with CE and RoHS certification compliance. Unless you are specifically notified at the time of purchase, all Nextion series products will be available for 5 years at least since 2023. Here is our LTA announcement.


Versatile Screen Sizes

Nextion is available in various TFT LCD touchscreen sizes including 2.4”, 2.8”, 3.2”, 3.5”, 4.3”, 5.0”, 7.0”, 10.1” . With a large selection to choose from, one will likely fit your needs. Go Nextion Series and Product Datasheets.


Quick and Easy GUI

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. The easy Drag-and-Drop components and simple ASCII text based instructions will dramatically reduce your HMI project development workloads.


Cost-effective HMI Solution

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. See Nextion Editor Guide and Instruction Set.


Nextion Technical Support

Nextion technical support team offers a basic hardware technical service with prompt response through all time zones.

As for further enhanced technical assistance to your project, Enhanced Support is available for you.


User-Help-User Forum

You are never alone to develop your project. Join us in Nextion Community Forum where you can ask questions, share topics and advice with each other.

Note: The Nextion forum is only accessible for registered users.

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Boosting the Nextion Mega I/O project with new knowledge (6)

Up to now, the highlight of our ongoing Nextion Mega I/O project is the ADC page which allows to monitor all 16 analog input pins of an Arduino Mega at once. With little modifications in the UI design, by putting either a Number or a Float component for a specific channel, we can select the desired display format without caring about conversion of or scaling the reading. The timer event code will chose the right formula by detecting the component type beforehand. All that is really great, but what if we do not need (or not all the time) all 16 channels? Is there a way to permanently disable (freeze/hold) the one or the other channel in order to reduce the workload of the Mega's ADC and the amount of data transferred? The answer is yes, and thanks to what we saw in the last Sunday Blog, it's easy-peasy!

Working with bit fields – optimize your code

Bitwise logical operations and packing data into bitfields is a very elementary programming technique - in fact, every microprocessor uses it internally to achieve "higher" goals like addition, subtraction, multiplication, division, and more. Nevertheless, many people who write amazing software in "high" languages are not really comfortable when it comes to bit manipulations, even if these can, as we have often seen in the Nextion Sunday Blog's demo projects, make your code more compact, using less memory and running quicker. Since I get more and more reader's feedback in that sense, I decided to make a compact writeup, giving you the required knowledge at hands, not only to decipher but also to create amazing things.

Universal UI on-screen help framework for Nextion HMI

In the Nextion user forums, a participant from Europe, let's call him M., asked an interesting question. What he wants to achieve is activating a "Help" mode on his Nextion project. That means that after activating this help mode, the user would click on an arbitrary component and instead of executing the component's event code, a help screen with explanations would be displayed. Since in his project, there are nearly 1000 components on several screens, reworking each single component's event code to decide if the event code should be executed or the help screen displayed, is definitively not an option. So, he thought that he'd use a TouchCap component to intercept the event chain before the component's own event code was executed, to decide if, in case the help mode was active, the help screen would be displayed. But his problem was that the component's own TouchPress and/or TouchRelease event code would still be executed afterwards, probably going to a different page, which would prevent displaying the help text correctly...

The 2024 Editorial

First of all, a Happy New Year 2024 to you, dear readers, from my Nextion colleagues in Shenzhen/China, in Canada, and from myself in France! After a quick look over the past 4 years, let's draw the roadmap for the coming year together!

You may find out a Nextion Distributor in your country to purchase the Nextion products  from above search.
To be a Nextion Distributor, please submit an application form and we will reach you soon.


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