BTF-LIGHTING WS2812B RGB 5050SMD Individually Addressable Digital 16×16 256 Pixels 6.3in x 6.3in LED Matrix Flexible FPCB Dream Full Color Works with K-1000C Controller Image Video Text Display DC5V

Good panel at a good price
This is a good panel at a good price. I ordered two at $37.88 each, and tested them first thing to make sure there were no dead pixels. Both panels work flawlessly. Color rendering is good, and is consistent across the panel. Each panel was in a nice white box, but I was surprised that instead of being placed in an ESD protective anti-stat bag, the panels were wrapped in bubble wrap, known for holding static charge. My only issue is that the advertised size is incorrect – they are not 0.48ft by 0.48ft. They measure 6 5/16 inches (square), which is 0.53ft. Your enclosure needs to be at least 6 3/8′ inside measurement. If I had built my enclosures relying on the 0.48ft description I would’ve been rather angry because the panels will not fit inside a 6″ square hole. WS2812 LEDs get a little warm when holding a bright color over time and this panel does as well, since the LEDs are closely spaced. You need to give them good ventilation.For those reviewers whining about the serpentine addressing – this is the most efficient way to connect the rows (or columns). Build your own panel and you’ll see. There is a simple solution – simply create a 2D ([rows][cols]) map that converts a logical row+column position into the corresponding physical position in the panel.

Great Display with rich colors!
This is a 5 star display but I subtracted one star to the lack of documentation.This display has rich colors and works well with the FastLED library. The package arrived per the suppliers commitment and was well packed. I did see some flicker but at this time I’m attributing it to my power supply. I’m getting a 1000 uf lytic to reduce the demand on the supply. I found out that the flickering was due to my driver. I switched to an Arduino UNO and everything worked great. I’m impressed with the brightness. I dimmed it down and it still supplied plenty of light. A quick connector was supplied which made it easy to interface it to the supply and the data source.Opportunities are as follows. I didn’t receive any documentation and when I went to the site the product wasn’t listed. I’m still confused on why there are two wires in the center of the matrix labeled 5v and DIN. I can see having the power coming in at the center but why the data also. I assume there was a reason but without any information I didn’t use it.

Don’t Buy. Bad Quality Control.
My guess is that these things have been sitting around for too long and maybe just went bad after being exposed to probably too much heat or something. I got one and only about 2/3rds of the LEDs would light up, they also wouldn’t respond to the Arduino code correctly. The code works fine on other WS2812B LEDs so whatever maybe just bad luck. I got a replacement shipped to me and this time they all do light up, however again they don’t respond correctly and just seem to do their own thing. I checked my code again and used a bunch of random code(specifically for these kinds of matrixes) off the internet that also doesn’t work with this thing. But guess what? The code works just fine with my other WS2812B LEDs. Either the posting here is wrong or there is a pretty bad QC issue with these things nowadays. Now I have 2 pieces of garbage that I need to ship back on my own time before I can even get a refund. Fun.Don’t buy, there’s plenty of other postings for the same thing on Amazon, so don’t order these. Bad quality control.

Great product worked right out of the box!
This display is awesome and works great with Arduino uno and Atmega 2560. I used pin 8 on Atmega328p and pin 53 on the 2560, both work. I converted the linear addressing into a 2 dimensional plane for addressing each led individually. Works great!

Bien en general, precio un poco demasiado elevado habiendo ofertas de dos matrices de 8×32 por cerca de 50 euros. En el vídeo tiene puesta una lámina de papel de calcar de 90gsm directamente encima, la controla una raspberry pi pico con el software SignalRGB

This is a great panel. I’m still learning how to use it tho. It is very bright.