TM1637 Display for Arduino

TM1637 7 Segment 4 Digit Display

In this video we play around with the 7 Segment 4 Digit display with a TM1637 driver. The board needs only a clock and data connection to use and a library is readily available on github.
We use a Nano, a DS3231 RTC and the display unit in this example to make a simple digital clock. If you are interested in purchasing one of these units, a link to buy is included in the Slow Boat from China #9 video.

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Please watch: "Diodes: The basic building block of all digital circuits"
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[elZorret]

Thank you mate, I'vee been searching how to turn on the colon for a while.

[bigpol]

class DS3231 has no member named getTime. Looks like this is a common error. I tried different DS3231 versions libraries including one from the link above. DS3232RTC, still the same.
👎

[fzelders]

Your code cannot be compiled 😞
>> exit status 1
'class DS3231' has no member named 'getTime'

[robertrobert]

So far as I can tell tm1637 isn't a real i2c device. A scanner shows it has no address. So you cant share scl/sda easily. But you can easily change pins.

[jumbo]

Still doesn't understand about 0x80 >> 1. Anyone can come up with more clear explanation?

[nikolailoukianov]

Is there a way to make all this parts smaller, or make them in one piece ?

[hectoro]

Hello Sir, I like your video, I am looking forward to build a clock like this for my desk. As far as a I understand, the clock module is what "knows" the current date since Arduino is not connected to the internet, so the question is, what happens when the battery of the clock module goes dead?, will the hour be set correctly after replacing it, even after a few hours?, how can you setup the right hour ?, Have a great day!

[jayc]

after creating a code, does i get stored onto the TM1637, or do you always need an arduino board connected to it? Sorry i am a noob.

[brykietosky]

Can someone help me? I have problem with DS3231 library. I dont have command set.Brightness and set.Time

[miguelfornes]

I want to do a clock with this, it need to be on the arduino? I want to do serial clocks

[pit]

Thanks for this, I was battling to get the colon to work on my clock. The colon does work now but now when the minutes less than 10 display, the whole time shifts one digit to the right because the int does not include the preceeding 0. ie 8.09 becomes 89. Any advice on how to fix this would be great. Thanks

[YouAllKnowBob]

This is what I am trying to duplicate. But the library I have that has Ayers name in it doesn't have a 'getTime' command. Again, thanks.

[msadikoglu]

I How to show the computer's clock

[qboyqboy]

hi, , BTW, I can find the codes, please help, , , MARK.

[pedro.federici]

Nice video.
If you allow me, I'll give you just a suggestion. Why don't you put the source code online?
I think it's a very nice way to get more likes.

[katietushim]

copied this exactly and get "display" was not declared in this scope. I don't understand

[fredlllll]

well you got me hooked with that booster thing, and now i want to make one with an arduino :P today i started work and got tangled up in optimizing my code. switching pins on or off in one cycle is possible :P cant post a link due to youtube. but you can find me on github under my name and the repo is FredUtil-Arduino

[pgprighi]

Hello, beatiful clock and very well explained!

Could you help me with this problem? I can't find any DS3231 library that solve it....
'class DS3231' has no member named 'getTime'