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Light Sensor


Introduction

Features

Light Sensor: Highly sensitive to light changes, it outputs corresponding signals based on ambient light intensity. In smart lighting systems, it automatically distinguishes between light and dark to turn lights on/off or adjust brightness; in outdoor devices, it can also adjust screen brightness according to light levels, saving energy and protecting eyes.


Specifications

ItemParameter
NameLight Sensor
SKUEF16005
ConnectionAnalog Output
Input Voltage4.15V
Product Size38.00mm×28.20mm (L×W)

Appearance and Dimensions


None


Quick Start

Hardware Connection Diagram


Usage Tutorials

Programming Software

Microsoft MakeCode


MakeCode Programming

Step 1: Adding the Jacdac Extension

  1. Go to Microsoft MakeCode and click New Project.

  1. Enter a project name in the pop-up window and click Create.

  1. Click Extensions in the code drawer.

  1. Type "Jacdac" in the search bar, click the magnifying glass icon, and select the Jacdac software library as shown.


Step 2:

  1. Connect the micro:bit to your computer using a data cable. Note: If this is the first time running a Jacdac program on the micro:bit, preload a blank Jacdac program first. Skip this step if already done.

  1. Connect the sensor. MakeCode will automatically detect it and simulate the sensor status in the emulator.

  1. Click ADD BLOCKS for the sensor extension module. Note: Repeat this step each time you connect a new sensor.


Program Code

Reference Program

Link: https://makecode.microbit.org/_AAALazD9MevC

## Result

When the detected ambient light intensity is < 10, the micro:bit displays "√"; otherwise, it displays "×".