Home2023-06-06T15:16:01+08:00

NEXTION INTRODUCTION

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.

WHY NEXTION

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

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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.

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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.

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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.

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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.

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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.

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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.

NEXTION APPLICATIONS
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BLOGS

The hard coded, #define, const or variable question – binary communication between Nextion and Arduino

Our long-time occupation on which we learn and grow at the same time, the Nextion Mega IO project will, as we have seen in my last blog, see another extension (CAN BUS) soon, which requires our custom protocol to be still more quick and flexible as its is already. That was for me the moment to review what had already been done and especially, how it was done. While the number of supported data types doesn't stop growing, we've seen in the past that adding these to our custom protocol was pretty straightforward, since everything had been well thought and designed from the beginning. But when I look back at our code on both sides, Arduino and Nextion, I find now that although it's currently working surprisingly well, it is sometimes difficult to understand a few weeks later, what was done and how it was done. Time to make our code more self explaining! But as always, let's take a little time to think and to study before going into "medias res" as the Romans said.

The Endian question – binary communication between Nextion and Arduino

Over the last months, we have seen a huge progress in the Nextion Mega IO project. Time for a little break to answer recurring readers' questions. Today, we'll talk about data formats in binary communication. An important point as soon as we leave the default ASCII command communication using the Nextion instruction set. For the Nextion Mega IO project, we introduced a much more compact binary protocol, first to gain on transmission speed, second to showcase the Nextion's protocol reparse mode, and third because it's fun to explore new paths 😉 . Our goal for today is to understand a bit of theory which will allow us to rework somewhat the Nextion Mega IO code in the future to make it simpler, easier maintainable and readable, and still more flexible. Then, adding the control over the up to 32 GPIO pins which we still have to implement, will be very easy. And later, when it comes to high speed communication between Arduino and Nextion for a CAN bus project (spoiler!), we will be thankful for all this preliminary work!

Control Servo motors with Nextion HMI – Part 3 Final!

Today, let's bring it to an intermediate end - for the moment. We have seen basics about servo control here and we have already prepared the Arduino side by adding some code to our ongoing Nextion Mega IO Extender project here.

Control Servo motors with Nextion HMI – Part 1

Over the last weeks, I got several mails from readers asking about the use of servo motors (or short, servos) together with Nextion HMI. The ones wanted to control a few servos directly from the Nextion's (Enhanced and Intelligent series) GPIO, others suggested to extend the Nextion Mega I/O project to allow controlling servos. The scientific approach is to gather information before taking a decision or even starting a development, thus, let's look at how servos work and how they are controlled, first. And then, let's see how the Nextion HMI can be used for that.

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