2. Light Sensor(EF05001)

2.1. Introduction

This sensor aims to detect the light intensity in the current environment.

2.2. Products Link

ELECFREAKS PlanetX Light Sensor

2.3. Characteristic

Designed in RJ11 connections, easy to plug.

2.4. Specification

Item | Parameter :-: | :-: SKU|EF05001 Connection|RJ11 Type of Connection|Analog output Working Voltage|3.3V Size|55.8 x 23.8 mm

2.5. Outlook

2.6. Quick to Start

2.6.1. Materials Required and Diagram

Connect the light sensor to J1 port and the OLED module to IIC port in the Nezha expansion board as the picture shows.

2.7. MakeCode Programming

2.7.1. 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.

2.7.2. Step 2

2.7.3. Code as below:

2.7.4. Link

Link: https://makecode.microbit.org/_HjrJ387jw8Xa

You may also download it directly below:

2.7.5. Result

The light intensity’s value displays on the OLED module.

2.8. Python Programming

2.8.1. Step 1

Download the package and unzip it: PlanetX_MicroPython

Go to Python editor

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

2.8.2. Step 2

2.8.3. Reference

from microbit import *
from enum import *
from light import *

while True:
    light = LIGHT(J1)
    light_value = int(light.get_lightlevel())
    display.scroll(str(light_value))
    sleep(2000)

2.8.4. Result

The light intensity’s value displays on the micro:bit.

2.9. Relevant File

2.10. Technique File