Introduction: 4 Digit Two Wire Display With Arduino

Picture of 4 Digit Two Wire Display With Arduino

I was working on a project where i needed a 4 digit display but when I went to connect it to the Arduino all I found were articles about having to wire up 12 plus pins. Then I found this Suli library which makes it so simple a dummy like me can wire it up with two pins (digitial 2 and digital 3).

Stuff needed:

Grove TM1637 4 Digit display

Suli library

Four_Digiit_Display_Suli library

Step 1: Connect Display to Arduino

Picture of Connect Display to Arduino

If you have an Arduino with an I2C two wire plug then it's a no brainer.

I only had an Uno so connect display vcc to 5v, gnd to gnd, DIO to Arduino digital pin 2, and CLK to Arduio digital pin 3.


Step 2: Download Libraries

Get Suli library here:

Now I did have a problem running the demo until I copied the cpp and header files from

here: (Guess they had updates).

Get Four_Digit_Display here:

Hope you know how to install libraries.

Run the Four_Digit_Display demo in the Examples file.

Rock on!


brinesharks (author)2015-11-03

Can't seem to compile it - any chance you could provide more detail for step 2?

JimRD (author)brinesharks2016-05-12

Sorry I just saw your comment today - don't know where I have been. But sadly I don't have this stuff anymore or even the code. Hope you got it worked out.

Ruben Marc Speybrouck (author)2016-05-09

Thanks for this!

i am not either. i just appreciate that you made it easy to find everything i needen ;)

Thank you, hope it helps. I'm not really an expert on this stuff but it was available elsewhere and I needed it at the time.

GuyH13 (author)2016-01-23

Thanks, nice simple library to use the TM1637. Very straightforward.

JimRD (author)GuyH132016-01-27

Thanks. Pretty easy to use. I used it for a weird clock project. Hope I have something else to use it for.
Rock on.

BallscrewBob (author)2015-10-07

Works well with the chinese clones too

Rocking Arduinos (author)2015-05-15

Will it work with all 4-digit displays? Like with the same ones that need 12 wires.

JimRD (author)Rocking Arduinos2015-05-16

No, only the Grove TM1637 as far as I know.

About This Instructable




Bio: I am an American teaching English at Shangluo University, Shaanxi. I like making machines that do interesting but fairly useless things - I call them Quixotic ... More »
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