ELEGOO 3.5 Inch LCD Raspberry Pi Touch Screen, 480x320 TFT Display for Raspberry Pi A, A+, B, B+, 2B, 3B, 3B+,3A+,4B, 5B, Zero, Zero W, and Zero 2 W, SPl interface with Touch Pen SC06

I'm happy with this module, it comes with a micro-SD card reader, touch layer, and TFT Liquid Crystal Display all in one. I didn't expect much to work properly given this board is 4 times cheaper than the well known touchscreen display on the market. But I've been happily surprised. Everything works smoothly, and the touchscreen is accurate in reading points across the entire surface. (There is NO calibration issue as you control the offset in code yourself) The card - being a shield - means you can just line up the pins on the board to the mount holes on the Arduino, and the card pushes firmly into place. The mini CD that comes with the device (see below for a link) has all you need to get it running, the drivers, libraries, and example code. Once I'd placed the libraries into the Arduino system, I opened the 6 examples and they all ran without issue. It was great! The build quality is excellent - the surface mount chips are all soldered well, the display is mounted cleanly on the PCB. You even get a little plastic stylus for the capacitive touchscreen. Warning! You might need to power your Arduino board along with the USB power. I found my little laptop couldn't power the bright white screen LED's, RGB screen, and Arduino all at the same time. The Arduino would repeatedly "unplug", and then "replug". Once I'd supplied extra power through the Arduino jack plug, it stayed connected. No more brown-outs. I might just buy another one to build a permanent project. -------------------------------- As you NEED to know what the electronic details are, I've included the CD contents on my site: Untamed Dot Co Dot Uk The link is right at the top, and includes the PDF's of the datasheets and libraries and examples. The missing manual. (At least on the product page) Key features: Driver chip : LGDP4535 (The CD also includes data sheet for the ILI9341) Level converter : 5v to 3.3v Screen resolution : 320 x 240 Screen colour: RGB, 65,000 colour. Uses 8 bit parallel bus. Includes Micro SD card holder. Includes Arduino libraries and examples.

Good little screen for the Arduino, if you have a UNO (or clone) you can load up the demos and have it working in minutes. All the demos just worked in my clone UNO. The resistive screen is a little hit and miss, it tends to need a prolonged press rather than a dab. If you watch the data from polling the position, you'll see a lot of null results and a report approx 1 in 10 to 1 in 20 times which is likely what causes the sluggish feel. The screen also isn't perfectly supported so you can feel it flex when pressing in some areas. A little better with the stylus, but does work with a fat finger. The colours and graduations are good and the provided library does everything I've asked. I'm data logging temperatures so having the ability to create a touch based menu and create charts with a few line drawing commands is very useful. The only downside is that with a UNO this screen uses almost all the pins. A5 is free which you can use in digital or analogue mode and digital pins 0 and 1 can theoretically be used but as these are shared with the USB serial interface to flash and debug your results may vary. Using a Mega eliminates this problem as there are lots of other interfaces, however you then need to manually rewire the SD card interface as the Mega pinout is different. The official screen uses a different interface which leaves a lot of pins free but is slower to refresh. Overall a good additional if you can live with the limitations (Uno) or spend a little more on a Mega.

Superb value for money. Arrived quickly and was well packaged. I set it up by downloading a pre made image from lcdwiki dot com and flashing it to a micro SD card. inserted it into the Pi and Voila, up and running. The refresh rate is slow but usable, at least for my use case it is. Very happy with Elegoo, less so with Amazon who said my original review did not meet their guidelines, I guess that's the way the world is going with AI

Using mine with a Uno as a UART to touch display interface. I have a mega that controls my home heating, and through a ~10m long UART connection, I can control and display via the touch screen. The library I found had the incorrect touch pins configured, so if you have touch problems (no detection) double check your #defines. I was also unable to fully configure the touch calibration using the example code (right edge was not detecting), but through trial and error got the correct calibration values. A few suggestions/tips. Although the SD card works, using the sd lib requires a lot of SRAM (512 bytes are required for sd card block writes), so thats 25-30% of the uno's memory space right there. So for my own scenario, I instead wrote code that reads in from the UART buffer to directly write to the display, parsing for commands to set text colour, position etc. By deleting functions/code not required for my exact tft screen, I freed up alot of space. If you are using the screen for something simple like me, its possible to use an uno, however, anything more complex and it does not have the memory to really do anything useful (and only has the UART pins free), so I would recommend a mega. I was also worried that I would REQUIRE the pen for any useful touch input, but the screen is extremely responsive to touch, more than I thought possible with a resistive panel. Edit: I purchased a second one, both going great left on 24/7.

Really good touch screen for the price. You have to push quite hard I find but once you've adapted to it's capabilities it's really easy to use. Easy to set up and interact with in code. The layout is HTML although you can use a wrapper that makes life a little simpler if preferred.

Muy buena pantalla e incluye el lápiz aunque no es indispensable utilizarlo lo recomiendo ampliamente

Ich habe mir vor einigen Tagen diesen Bildschirm ausgesucht, weil ich ein kleines Display für den Elegoo Mega 2560 haben wollte. Einen richtigen Einsatzzweck habe ich noch nicht und daher habe ich viel mit dem Display herumgespielt und getestet. Der Bildschirm kam in einer kleinen Pappschachtel mit CD, Eingabestift und einem kleinen Werbesticker mit einer Internetadresse, wo man sich eine Anleitung und Bibliotheken für die Arduido-IDE herunterladen kann. Die Anleitung ist in Englisch und für mich mit meinem Schulenglisch sehr gut verständlich, auch wenn man merkt, dass sie wohl von einem Chinesen geschrieben wurde. Die Informationen sind aber alle vollständig, gut verständlich und auch fehlerfrei. Die Anleitung ist zudem an den wichtigsten Stellen bebildert und man weiß sofort, was man machen muss. Die Arduino-IDE läuft bei mir in der Version 1.8.2 und kam sofort mit dem Bibliotheken für das DIsplay zurecht. Die Beispielprogramme liefen alle sofort ohne Anpassungen und sind auch für einem Programmieranfänger verständlich. Wichtig(!!): Ich war zuerst zu zögerlich mit dem Aufstecken des Bildschirms auf den Mega 2560, daher kam nur ein fehlerhaftes Signal zustande und ich war für ein paar Minuten der Meinung, dass der Bildschirm eine Macke hat. Dem war aber nicht so. Man kann die Kontaktstifte wirklich komplett auf den Mega 2560 stecken bis sich die Plastikreihen des Displays und der Mega 2560-Platine berühren. Also keine Angst, dass man etwas kaputtmacht :-) Display: Der Bildschirm ansich hat eine Auflösung von 320*240 Punkten und das langt auch in meinen Augen für den Einsatztzweck. Vorallem wenn man den geringen Preis betrachtet. Der Bildschirm ist ausreichend hell und kann auch bei Sonnenlicht noch abgelesen werden. Die Farbdarstellung ist sogar sehr gut und entlockte mir beim ersten Mal ein "Wow". In Betrieb wird es ganz leicht warm, aber wirklich nur minimal. Daher braucht man wohl nicht auf aktive Kühlung achten, wenn man das Produkt in einem Gehäuse einsetzen will. Die Touchfunktion ist einwandfrei. Es liegt zwar ein Stift bei, aber man kann den Touchscreen auch mit einem Finger bedienen. Alles in allem kann ich nur 5 Sterne vergeben, weil es wirklich ein gutes Produkt ist.

good

PERFECTO TODO BIEN

This is amazingly cheap for what it does. I didn't have any way to play the CD that came with enclosed instructions on how to use this, but a good YouTube tutorial did the trick. Elegoo provides modified Adafruit_TFTLCD and Adafruit_GFX libraries designed to be compatible with the Arduino Mega, which they also sell separately. These modified libraries aren't available on the IDE, so I had to download them and manually insert them into the IDE's library folder. After that it should work really great once you boot up an example. Really good brightness, although, (as any LCD screen would, so I expected this), you can't achieve true blacks with this screen. That doesn't matter at all though. The "touchscreen" part of this works pretty neatly with the examples provided, although sometimes you might have to apply a little bit more pressure than you're used to with the capacitive touchscreens that iPhones and other mobile devices feature. Overall this is a fantastic device and absolutely worth buying. I might buy another one in the future if I need it.