DIYmall 8X8 64 Pixels RGB LED Matrix 64 X WS2812B WS2812 5050 SMD LEDs Panel with Integrated Drivers, Full Color Lamp Light Board Individually Addressable for Arduino Raspberry Pi

The leds are laid out on a perfect grid with no differences in gaps between rows or columns.They do not use the same LEDs a I have on other neopixel rings and strips. These have an extra element visible under the lens. I’d have guessed they’re RGBW from that but I don’t know. In any case they’re just as bright as the Adafruit ones and work fine.

This matrix arrived smaller than advertised which was a benefit to my project. It measured 65 x 65 mm. It functioned great and I am pleased. I ordered another,

it works and does the job. Let it run for a few hours to smoke test and no issues.

The media could not be loaded.  The cost of an 8x8 RGB matrix can be as high as $35 from some sites. This makes constructing larger matrices very expensive. The single 8x8 matrix can be chained together with other 8x8 matrices to make larger matrices. Connect the DOUT of one matrix to DIN of the next. A 3D printed device could be easily designed to hold four (for example) together into a single matrix.With the DIN aligned on the top left corner, the LEDs are connected as rows that sequence fro left to right and top to bottom. See the video that demonstrates the sequence. There are plenty of available software libraries that handle sequencing the LEDs of multiple boards into a single matrix.I connected DIN to D3 on an Uno and then connected ground and the 5V leads to the Uno's supply pins. I tried two different libraries with these and both worked find I recommend FastLED). This matrix is 800KHz and the color sequence is GRB. The matrix works exactly as expected and is extremely bright.When using these you will need a standard microcontroller that can handle the critical timing required (such as ATMega328). When using these a SAMD21, SAMD51, ESP8266/ESP32 or Raspberry Pi you can only connect them on a pin that supports DMA and you need a library that can use the DMA pins. Note in some cases using DMA can limit other features of the board.NOTE: DIN was properly labeled on the board I received.This was easy to get up and running, it is not expensive. I can recommend this matrix.

The media could not be loaded.  This is one of the standard WS2812B LED arrays. They are the individually addressable LEDs, that only require one data pin. You can control them easily from any Arduino, ESP8266 or ESP32, using the FastLED library.It comes with one pin set. It really should have had two. (hey vendor, include 2 pin sets in the future). I opted to use two angle sets instead. The pins should be soldered in, but they are tight, and may work temporarily just pushed in place. The space to solder them in is kind of tight, but there aren't really any other good options. Just be careful.The 4th pic is an electronics microscope view of one of the lights. They look like well produced pieces, and it is well assembled. Their brightness is typical for this kind of light. So overall, the parts quality and manufacturing appears to be very good. I'd suggest it for anyone who wants to play with these lights. They are a lot of fun. I have quite them in several different configurations.In the included video, I am just running the FastLED example script "DemoReel100", that comes with the FastLED library. It just shows off what the lights can do.

The media could not be loaded.  Plug n' Play little 8x8 WS2812 pixel matrix. As mentioned in the product description, this module is NOT flexible like others out there that look similar. The LED matrix comes with 64 WS2812 smart pixels mounted onto a rigid PCB board. Build construction looks solid, no solder bridges or flux puddles on the one that I recieved. It came with a 3-pin header row to solder onto the board for the GND, 5v+, DataIN connections. Hooked it up to an Arduino Uno and uploaded a basic Adafruit NeoMatrix test sketch, and as you can see in the video, the pixels look great! Bright, vivid, and consistent colors. After some trial and error, the proper start point for this matrix is: NEO_MATRIX_TOP + NEO_MATRIX_RIGHT + NEO_MATRIX_COLUMNS + NEO_MATRIX_PROGRESSIVE, NEO_RGB + NEO_KHZ800. Check out my photos for the full sketch that was used to make this pixel matrix scroll text. One can never have enough neopixels in their life, its just not possible. Love it when they JUST WORK right off the bat like this. Time to make stuff blink...go!

It was very easy to get this 8 by 8 matrix up and running with an Arduino and the FastLED library. To install the FastLED library go to Tools | Manage libraries in the Arduino IDE and search for fastLED. Once installed, click on the more info part of the installation note for FastLED and this will bring you to a GitHub site with example code. Finally, when you run this example code you get a red pragma warning about the version of FastLED that you have. You can ignore this, it is just a message indicating the version you are using. Finally, this led matrix can be chained together with other ones.

The media could not be loaded.  I used an example sketch and loaded it into an Arduino Uno. I hooked an external 5V, 5A power supply to allow the display to have enough power. I only had to modify the code for a 8 by 8 matrix instead of the original 8 by 5 to get it to use the entire display. I have a short video of it saying howdy. The display was bright and colorful. The video doesn’t do the colors justice. The still image is more realistic. So this looks like a good product.

Warning . The Data in (DIN) and Data out (DOUT) pins were reversed on mine . Probable will be the same for most since the printing on the board was done upside down . Check before you do your soldering . +5V and GND. Doesn’t matter . Came across a video by fluke that had a note stating to try and reverse the data pin if you can’t get it working . All and all the matrix works really well. I would recommend a fine tip on your soldering iron as the soldering area is quite small .

Came as expected.The mistake regarding the bus in and out was corrected (Din and Dout were correctly marked).Look forward to using this in project for the grandson.