Using multiple TM1637 4 digits LED Display with Arduino

This video explains how to use two more TM1637 LED displays with Arduino. Get the code from the link below.

Purchase TM1637 from Affiliated stores:

*** Purchase Arduino Start Kit ***

Jump directly to different section of video:
00:00 Start
00:33 Introduction
01:23 Wiring Explained
02:28 Code Explained and Demonstration

Get Arduino code and other resources for this video:

Tutorial by Ahmad Shamshiri form Canada
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Power Supply I use:

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[mathislfx]

Thanks bro !, almost only documentation existing on multiple displays, not so hard but very nice to see the code <3

[iwillgettableflipped]

Another way to hook it up is by only using 2 data pins total for both of the displays. You can simply invert the clock and data pins from the first display on the second display and address both devices individually. Personally I think this is much easier than any other method.

[breakerhun]

Hi! Nice video. Just one note, you can use the same CLK pin to give clock signal for both device at the same time, there is no need to separate them. This way you can save 1 pin on your arduino.

[rwl]

The second 5v is supplied by IOREF pin which for the UNO and MEGA is 5v. That connection is viewable at 1:54 and 1:59 in the video but not called out directly. The board used in video has two 5v pins marked. My Elegoo has the pin labeled as IOREF With the help of Robojax, the TM1637 is a joy to work with.

[florinnica]

Hello! Thanks for your video. It helps me to start TM1637 based LEDs display. I have two thing to tell you:


1. The brightness work in 0x0 - 0x7 range. The TM1637 consider only first 3 LSB. The brighness adjust is made by duty factory of comon anode commnad of digits. For 0x0, the ON time is 40 microseconds, for 0x1 time is 82microseconds and so on till 0x7 where the time is 600 microsecons. The cicle time of all digits is 4, 7 miliseconds.


2. I try to use only one pin for DIO. I conected DIO of the two displays togheter at pin 8, CLK of display1 to pin 9 and CLK of display2 to pin 10. They work OK. Each displays diferent value. That means is not necesary a distinctive pin for each DIO. They can be conected at the same pin. In code I define DIO1 and DIO2 at pin 8. In fact, all TM1637 receive a start comand on I2C, but anly one display will receive clock signal from microcontroler. Finaly, all TM1637 will receive a stop comand. If the driver TM1637 didn't receive clock signal between start and stop comand, the display will stay unchanged.

[ClaudioFontachannel]

thanks, friend. your video is clear and complete

[dennisfriedl]

This tutorial was great. I am a bit new here and trying to use some of this design to work as a slot car lap counter. I'm close to getting it working but struggle with using two defined pinMode settings.When either button is depressed both displays increment the count. I can supply the sketch. I'm sure its something simple.

[Dancopymus]

Greetings Robojax
I have two TM1637 LED 0.56" Display Module but there is no way to work with ESP8266 ESP-12E WiFi; Normally works with TM1637 LED 0.36" Display Module (Smaller Display) but with 0.56" it doesn't work. Turns on Led Red behind the board but the display doesn't show anything. Do these modules larger than 0.56" only work on 5 volts? Do you have any tips for working with NodeMCU? Thanks

[FerrariFilippo]

thank you so much.
so if i want to build a chess clock, i can use this method to have player 1's time going on one clock while player's 2 time is still and then to the opposite after the pression of a button. right?

[navidmafi]

Very useful and working without a problem!
liked, shared and subscribed
Thanks a lot

[shlomostark]

Any way to make sure there isn't interference with the screens running together. having a hard time getting more then 2 screens to run smoothly together.

[guidovlaere]

Very useful video, good explanation, thanks a lot! It's very helpful

[FilipJukić-dh]

Hi Robojax, is it possible to use same CLK pin for bouth displays? THX!

[rajaguru]

How can we use more TM1637 in parallel to since it has no slave address? Please clarify. Thank you.

[sergiobe]

thanks for the video. I want to know how many TM1637 can I connect to a single Arduino Uno or what would be the best solution to use several TM1637. thanks in advance

[pascualpalacios]

Hello, if I want to show the temperature on the tm1637 display, 15.7, what function do I have to use?

[raticalinc_restore_garage]

Hi is it possible to run 4 separate (independent) 3 display segments of Arduino?

[hectoro]

thanks a lot man! very clear explanation!

[scottlasenby]

I see in this tutorial you have two different sizes of TM1637. What is the ordering identifier for the larger size and the dimensions? I recently purchased a set from you via amazon and they came as the smaller more common size. Thanks.

[bricecotte]

What a nice job ! It's working extremely well but I do have one question, did you plan something to display the ":" in the middle of the display ? I didnt find how I could do this