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Arduino Counter Using TM1637 LED Display
2026-08-21 | By Ron Cutts
License: GNU Lesser General Public License Displays LED Strips Microcontrollers Arduino ESP32
In this tutorial, we will learn how to make a simple digit counter using an LED display TM1637 and Visuino.
Watch the video.
Learn more about Visuino: What is Visuino
What You Will Need
Arduino UNO (or any other Arduino)
Visuino program: Download Visuino
The Circuit
Connect LED Display pin[CLK] to Arduino digital pin[10]
Connect LED Display pin[DI0] to Arduino digital pin[9]
Connect LED Display pin[GND] to Arduino pin[GND]
Connect LED Display pin[VCC] to Arduino pin[5V]
Start Visuino, and Select the Arduino UNO Board Type
To start programming the Arduino, you will need to have the Arduino IDE installed from here: https://www.arduino.cc/.
Please be aware that there are some critical bugs in Arduino IDE 1.6.6. Make sure that you install 1.6.7 or higher; otherwise, this will not work! If you have not done so, follow the steps to set up the Arduino IDE to program Arduino UNO! The Visuino: https://www.visuino.eu also needs to be installed. Start Visuino as shown in the first picture. Click on the "Tools" button on the Arduino component (Picture 1) in Visuino. When the dialog appears, select "Arduino UNO" as shown in Picture 2
In Visuino ADD Components
Add "TM1637 7 Segment Display 4 Digits Module + 2 Vertical Points (CATALEX)" component
Add "Counter" component
Add "Pulse generator" component
In Visuino Set and Connect Components
Select "Counter1" component and in the properties window set "Max>Value" to 9999
Select "Counter1" component and in the properties window set "Min>Value" to 0
Double-click on "Display1" component and in the "Digits" window drag "Integer Display 7 Segments" to the left side
On the left side of the "Digits" window select "Integer Display 7 Segments1" and in the properties window set "Count Digits" to 4
Close the "Digits" window
Connect "PulseGenerator1" pin[Out] to "Counter1" pin[In]
Connect "Counter1" pin[Out] to "Display1">"Integer Display 7 Segments1" pin[In]
Connect "Display1" pin[Clock] to Arduino board digital pin[10]
Connect "Display1" pin[Data] to Arduino board digital pin[9]
Generate, Compile, and Upload the Arduino Code
In Visuino, at the bottom, click on the "Build" tab, make sure the correct port is selected, then click on the "Compile/Build and Upload" button.
Play
If you power the Arduino UNO module, the LED display should start counting numbers. Once it reaches 9999, it will restart at 0 and count again.
Congratulations! You have completed your project with Visuino. Also attached is the Visuino project that I created for this. You can download it here and open it in Visuino: https://www.visuino.eu
