26. 7-Seg LED Nixietube(EF05026)

26.1. Introduction

It is able to display the numbers and time and so on.


26.2. Characteristic

  • Designed in RJ11 connections, easy to plug.

26.3. Specification

Item Parameter
SKU EF05026
Connection RJ11
Type of Connection Digital input
Working Voltage 3.3V
Core IC TM1637

26.4. Outlook


26.5. Quick to Start

26.5.1. Materials Required and Diagram

  • Connect the 7-Seg LED Nixietube to J1 port in the Nezha expansion board as the picture shows.


26.6. MakeCode Programming

26.6.1. Step 1

Click “Advanced” in the MakeCode drawer to see more choices.


We need to add a package for programming, . Click “Extensions” in the bottom of the drawer and search with “PlanetX” in the dialogue box to download it.


Note: If you met a tip indicating that the codebase will be deleted due to incompatibility, you may continue as the tips say or build a new project in the menu.

26.6.2. Step 2

26.6.3. Code as below:


26.6.5. Result

  • Set it display 12.34.

26.7. Python Programming

26.7.1. Step 1

Download the package and unzip it: PlanetX_MicroPython

Go to Python editor


We need to add enum.py and nixietube.py for programming. Click “Load/Save” and then click “Show Files (1)” to see more choices, click “Add file” to add enum.py and nixietube.py from the unzipped package of PlanetX_MicroPython.

../_images/05001_081.png ../_images/05001_091.png ../_images/05026_10.png

26.7.2. Step 2

26.7.3. Reference

from microbit import *
from enum import *
from nixietube import *

n = 0
while n < 10000:
    n += 1

26.7.4. Result

  • The numbers from 0~99999 display on the 7-Seg LED Nixietube.

26.8. Relevant File

26.9. Technique File