Grove - Light Sensor

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Analog data output 3.3/5V working voltage Easy to use
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This product is retired, please consider the new version Grove - Light Sensor V1.2.

The Grove - Light sensor module uses GL5528 photoresistor(light dependent resistor) to detect the intensity of light in the environment. The resistance of photoresistor decreases when the intensity of light increases. A dual OpAmp chip LM358 on board produces voltage corresponding to intensity of light(i.e based on resistance value). The output signal from this module will be HIGH in bright light and LOW in the dark.

This module can be used to build a light controlled switch i.e switch off lights during day time and switch on lights during night time.

For all Grove users (especially beginners), we provide you guidance PDF documents. Please download and read through Preface - Getting Started and Introduction to Grove before your using of the product.


  • Operating Voltage: 3-5V

  • Supply Current: 0.5-3mA

  • Photoresistor: GL5528

  • Light resistance: 20KΩ

  • Dark resistance: 1MΩ

  • Response time: 20-30 secs

  • Peak Wavelength: 540 nm

Technical details

Dimensions 60mm x80mm x10mm
Weight G.W 6g
Battery Exclude

Part List

Grove - Light Sensor 1


HSCODE 9031900090



This is the wiki page for this product, which will show you how to use the product, as well as details about the software and hardware.
This spider will keep quiet in the dark. But once there is light, the spider will start to vibrate, avoiding the light.
Learn Image
This comprehensive test box uses the Grove Sensor Starter Kit to complete some interesting experiments.
Building a home automation system based on natural voice.
A cube with all the necessary sensors, suitable for a wide range of applications like agriculture, monitoring, ,etc.
I would like to share my first steps with the Grove 'plug & play' components. This is primarily a Light Sensor.
In this lesson you will learn how to connect and program the light sensor grove module.Thanks Javier Martinez provide this lesson for introduction to Seeeduino with Grove Starter Kit.
Wiki of Grove - Light Sensor


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