nextion 4.3 tft lcd made in china
After two theory-loaded blog posts about handling data array-like in strings (Strings, arrays, and the less known sp(lit)str(ing) function and Strings & arrays - continued) which you are highly recommended to read before continuing here, if you haven"t already, it"s big time to see how things work in practice! We"ll use a string variable as a lookup lookup table containing data of one single wave period and add this repeatedly to a waveform component until it"s full.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?
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 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 Seamless Human Machine Interface (HMI) solution that provides a control and visualisation interface between a human and a process, machine, application or appliance
I honestly can’t think of a single mass-produced product in North America or Western Europe that uses TJC/Nextion in any capacity. If the product has any degree of complexity at all, there will be an MCU somewhere already, which means you don’t really need the Nextion MCU. That pretty much just leaves the touchscreen itself.
I am as small-time as it gets and I sell a handful of devices on Tindie, and for my volume the tradeoff between development time and device cost makes the Nextion feasible. But that math only works out if you’re running extremely small volumes.
For example, say I can get a Nextion 2.4" Basic for $10 in volume. A similar 2.4" touchscreen can be had for < $2 without the TJC/Nextion bits. TJC/Nextion provide a very nice development environment that any idiot can use (I’m exhibit A here). That $2 touchscreen is going to require more work from the development team. If I’m going to sell 100,000 units, that’s $800k I could spend on a development team, or more realistically, $50k I could spend on development and $750k I could put in my pocket.
There’s no way for the math to work out in TJC/Nextion’s favor when there’s any sort of scale involved. The product development environment is well suited for rapid development, but the pricing and limitations of the environment mean it’s only suited for prototyping or short-run projects.
Further, you have the issue outlined in the OP. No organization can be confident that the part they spec from Nextion today is going to be the part they receive in their next order. If you question Nextion about it, they’ll stop communicating with you and ban any accounts you’ve opened with them. These sorts of supply chain issues mean NOBODY in their right mind would spec this part. It’s single-source, and the single source is not trusted or accountable.
That’s why it’s so hard to understand the overall posture of the Nextion team w/r/t the hobbyist/enthusiast community. They’re convinced that they have a industrial/commercial part that they’re selling, and so they actively push away hobbyists and prototype shops while chasing after commercial users. Unfortunately, due to the issues outlined above, nobody in industry would consider this platform for anything that would be produced at scale. So what they’re left with are commercial users who either can’t get their shit together to develop against the bare LCD, or who operate at very small volumes.
I know that those users are out there, and according to @Fjodor there apparently are several in Eastern Europe, but man it feels like Nextion is missing a major market, which is the only market where their products make sense, simply by being jerks to anyone that isn’t in the commercial space.
Nextion NX4827T043 is a 4.3" Basic series SMART HMI Touch display having resistive touch screen. There are several Nextion display modules, with sizes ranging from 2.4” to 10.1". Nextion displays has a built-in microcontroller that controls the display, it takes care of which button has been clicked, creating text, storing images or change the background. The Nextion display communicates with your microcontroller using serial communication at a 9600 baud rate.
Nextion Basic NX4827T043 4.3" Resistive Touchscreen Display is so simple to interface that it can easily work with Arduino, Raspberry Pi, ESP8266, ESP32, PIC Microcontroller, AVR controller, ARM Microcontroller and you won"t believe it will work even with basic 8051 microcontroller basically it will work with with any board or Microcontroller that has UART port.
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 Internet of thing (IoT) or consumer electronics field. It is the best solution to replace the traditional Alphanumeric LCD, GLCD and 7-Segment display. Nextion includes a hardware part (a series of TFT boards) and a software part (the Nextion editor). The Nextion displays uses only serial portto communicate with your device. It lets users avoid the hassle of wiring.
We noticed that most engineers spend much time in application development but get unsatisfactory results. As a solution to this situation, Nextion editor has components such as button, text, progress bar, slider, instrument panel etc. to enrich the interface design. Furthermore, the drag-and-drop function ensures that users spend less time in programming, which will reduce 99% of their development workloads. With the help of this WYSIWYG editor, designing a GUI is a piece of cake. It"s easy to adapt Nextion family HMI to existing projects. Users just need to connect it to your device"s UART port.
DNA Solutions isofficial distributor for Nextion Display in India. Check out various collection ofNextion displaysin stock.If you are in Nashik you can buy this Electronic Component at our local shop at New CBS, Nashik or you can place order online and get it delivered at your doorstep anywhere in India.
480 x 272 ResolutionCompatible with Raspberry Pi A+, B+ and Raspberry Pi 2RGB 65K true to life coloursTFT Screen with integrated 4-wire Resistive Touch PanelEasy 4 pin interface to any TTL Serial Host4M Flash memory for User Application Code and DataOn board micro-SD card for firmware upgradeVisual Area: 95.04mm(L) × 53.86 mm(W)Adjustable Brightness:0 ~ 230 nit, the interval of adjustment is 1%5 Volt 250mA power consumptionGeneric using for all Arduino or Raspberry Pi project
Nextion Editor is a free human-machine interface (HMI) GUI development software for Nextion Basic Series, Discovery 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 ASCll 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.
Debug the HMI project at any time even without the Nextion Display.The instruction input area allows you to send any Nextion commands to check the feedback and interactions.