14. Laser Module(EF05013)

14.1. Introduction

It is made of a laser emission chip, condensing lens and an adjustable sleeve, which can work after powering on.


14.2. Characteristic

  • Designed in RJ11 connections, easy to plug.

14.3. Specification

Item Parameter
SKU EF05013
Connection RJ11
Type of Connection Digital input
Working Voltage 3.3V
Spot Size φ10mm ~ φ15mm at 15 meters away

14.4. Outlook


14.5. Quick to Start

14.5.1. Materials Required and Diagram

  • Connect the Laser module to J1 port and the Crash sensor to J2 port in the Nezha expansion board as the picture shows.


14.6. MakeCode Programming

14.6.1. 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.

14.6.2. Step 2

14.6.3. Code as below:


14.6.5. Result

  • The Laser module turns on while the crash switch being pressed or it turns off.

14.7. Python Programming

14.7.1. Step 1

Download the package and unzip it: PlanetX_MicroPython

Go to Python editor


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

../_images/05001_081.png ../_images/05001_091.png ../_images/05013_10.png

14.7.2. Step 2

14.7.3. Reference

from microbit import *
from enum import *
from laser import *
laser = LASER(J1)
while True:

14.7.4. Result

  • The Laser module lights on for 500ms and then lights off for 500ms after powering on.

14.8. Relevant File

14.9. Technique File