Fast shipping and fast delivery. Highly recommended seller.

Great kit, smd soldering is not as hard as it seems! Shipping took a while but hey the kit is great and the matrices are linkable

Hello, i've bought four pices of them by you. but i have a problem, that a lot of dots are instantly shining. Does anybody knows what I've done wrong? Greetings Andreas

This is a great kit for the price, and a nice way to practice surface-mounted soldering skills. Pros: 1) If you want to have multiple displays aligned vertically, then this is the kit for you. The circuit board is the same size as the display, so you can place the displays side-by-side with no gap. 2) The jumpers used to chain multiple displays are much easier to work with than cables 3) The downloadable documentation is excellent. Cons: 1) There are no mounting holes in the circuit board, so you'll have to be creative when hanging these on a wall. 2) The pins used to connect multiple displays with the jumpers are intended for vertical alignment, not horizontal. In other words, if you want to display text vertically on multiple displays, you'll either have to connect them with cables, or change the software to rotate the text. 3) The solder pads for the SMT chips are a little too tight, making it challenging to solder. So, there is some room for improvement, but overall this is a high quality kit for a very good price.

First off, the shipping was very fast and accurate. I just received these yesterday. I couldn't wait to play with them. I was able to assemble them in just a couple of minutes. They are awesome and work just as described. Also the price is pretty much the best I have found.

Thanks, the goods have to hand. In accordance with the booking, but a little unfortunate, there is one item (ic A3967 / A1013) is not the same as the other 4 ic goods. If it's worth the MAX7219 is not a problem for me. Thank you very much

Great Item! Bought some of these on eBay but here they are even cheaper. Easy to solder, great performance, little price.

Great item with good quality and simple to solder. Very easy to use because is a simple shift register. Great Service too!

I first purchased these on eBay and was very happy with them. A great value. It is a kit and you have to do some soldering with surface mount devices, but I had not problems with this. My only negative comment is that the pin spacing on the two 5 pin connectors, which are used to daisy chain the devices is not placed on a 0.1 inch grid. These pins are about 1.15 inch centers. This makes it difficult to mount these small boards on a motherboard. They were designed to daisy chain together using strapping jumpers, both for the electrical connections as well as physical connections. I have order another 10 and do recommend this product.

These are great. I purchased four and I plan to buy some more. Here's a link to my YouTube video. http://www.youtube.com/watch?v=Hknsb8V3mxc