5 Packs Red/Green/White/Yellow/Blue Colors TM1637 0.56" LED Display Digital Tube Decimal 7 Segment 4 Digit Clock Double Dots Module Serial Driver Board for Arduino Uno DIY Kits (5 Colors)

There was absolutely no soldiered board here. The pins were already soldiered on the wrong side of the board when they arrived with many of the other boards I tried, and it was impossible My original 3packs from Banggood were WAY more expensive. I ordered these and they were considerably cheaper. I was able to use the for my project without any problems.

Julissa Santos

| Apr 10, 2021

The 1737 processing only occurs if serial data is arriving at the moment the write is taking place. It is worthwhile to put a port. end() just before your 1637 writes and a port. begin() just after them to prevent this problem. I get good results from serial GPS data arrived at 9600 baud, at least for me. The only messages I use are GPRMC messages and I always discard everything else, so some of them might be affected, but I see no effect at all, other than all my 1637 writes now happen within I was originally a fan of I am updating The corruption was caused by a nano that only produced four. On the 5v pin, there are two volts. I'm not satisfied with that. It was a different nano from the same batch that produced a 4 and fixed the issue. This week's 5v*br*br*update There is a corruption problem with one of these clocks that I am using. A digit or two will often have a wrong segment lit when it is updated by the system one minute at a time. It has never shown up on any of my other 1637 displays. It takes about 75 milliseconds to write to each digit for the 1637 part on a nano. That is a long time. The meters work fine for clocks, but not for anything else that requires a lot of energy. I bought them for other reasons and have been disappointed that there are no decimal points they do work well as clock displays, but that's Pin compatibility is not possible with these. Units from other vendors have the power and ground pins in reverse order. Apart from that, they work the same way. It doesn't require any changes to code to go from to Measure 36 inches by 36 inches. The displays are 56 inches. There is however a big advantage of these in that they have pin locations for an output pin header, which allows them to be daisy-chained. It consists of the These are not included in the 36-inch units I have on hand.

Eden Ashley

| Sep 03, 2020

It does not provide lighting for the decimal places on the display although it does show The other reviews were not so clear to me. I should have read them more carefully. would have given this product five stars if it weren't for this slight deception found in the listing. Overall, this is a great product and would receive a five-star rating except for this detail.

Zev KNOWLES

| Jun 12, 2021

While I have not used enough of these to know the statistics, it has happened to me and a few other people on this board

Every now and then you'll get one of these that won't stay up. Once you set the segments, the display just blinks VERY quickly before it turns NO, the library is not responsible for this issue. I only received one that did this out of five that I received. That is a question I will not attempt to answer. If you encounter a buggy unit, all you need to do is to call your function again and again. The display is perfectly readable with only a barely perceptible flicker if you call the function over 40 times per second. There's no smoother way to say it than 60 times per second. The human eye's retina can only see up to a certain pixel diameter, anything over that Resetting only the segments is enough the brightness doesn't need to be reset. Overall, I'm satisfied with this bundle because it is a very affordable bundle, and I do not think there is any other way to buy these for a reasonable price and not get the odd buggy one, so I won't hold it against the platform developer. I would like to emphasize that judging from other community responses, the bug seems rather infrequent. The next time I order these I will order them.

Lawrence Arias

| Apr 18, 2021

It is noted in the product description that "Decimal data per digit is available," but these are not actually the decimal version of There are two ways to wire the TM1637 to display decimal points or to display a colon. The style being shipped displays.

Abram Wood

| Aug 10, 2020

The only disappointment is that they go from pretty bright to really bright, so they are not suitable as bedroom clock displays. As soon as I get about 1/3 or 1/4 of the way up the scale, I can't tell the difference in brightness levels. In the end, I tinted the display to dim it down, but that really reduced its range so it's only usable at night. During the day, it isn't visible due to sunlight. Instead of a narrow range of brightness, I'd appreciate a wider range.

Diana Gamble

| Mar 03, 2021

I was pleased to see that these units were as described and arrived on time. It's important not to get mislead by the fact that they have decimals. There is no mention of the decimal dots here. While they do not work on the middle colon, they do with the proximal The model I am using does not support decimal dots, although other models do.

Santana Guerra

| Jan 15, 2021

I would have given this a perfect rating if it wasn't for that one display that wouldn't work!.

Noe Hickman

| Dec 03, 2020