14. Laser Module

14.1. Introduction

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

../_images/05013_01.png

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


../_images/05013_02.png

14.5. Quick to Start


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.

../_images/05013_03.png

14.6. MakeCode Programming


Step 1

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

../_images/05001_04.png

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.

../_images/05001_05.png

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.

Step 2

Code as below:

../_images/05013_06.png

Result

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

14.7. Python Programming


Step 1

Download the package and unzip it: PlanetX_MicroPython

Go to Python editor

../_images/05001_072.png

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

Step 2

Reference

from microbit import *
from enum import *
from laser import *
laser = LASER(J1)
while True:
    laser.set_laser(1)
    sleep(500)
    laser.set_laser(0)
    sleep(500)

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