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Grove Light Sensor

Product Code: 101020014
Excl. VAT: £2.17 Incl. VAT: £2.60
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The Grove - Light Sensor module incorporates a Light Dependent Resistor (LDR). Typically, the resistance of the LDR or Photoresistor will decrease when the ambient light intensity increases.

This means that the output signal from this module will be HIGH in bright light, and LOW in the dark.


  • Easy to use light sensor module
  • Resistance decreases as luminance increases
    • Low resistance (in bright light) triggers a HIGH signal towards the output module
    • High resistance (in darkness) triggers a LOW signal towards the output module
  • Easily integrates with Logic modules on the input side of Grove circuits
  • Uses Standard 4-pin Grove Cables to connect to other Grove modules such as Grove Power Modules, Logic Gates and Grove - Base Shield


  • Voltage: 3-5V
  • Supply Current: 0.5-3mA
  • Light resistance: 20KΩ
  • Dark resistance: 1MΩ
  • Response time: 20-30 secs
  • Peak Wavelength: 540 nm
  • Ambient temperature: -30~70℃
  • LDR Used: GL5528

Visit the wiki page for more information

Product Attachments

View FileGetting Started with Grove    Size: (1.57 MB)
View FileIntroduction to Grove    Size: (4.78 MB)

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Whenever possible, items which are in stock are dispatched the same day, or the next working day.

Large and/or heavy items are dispatched by UPS courier service and these orders must be placed before 15:00hrs (GMT) to ensure same day dispatch.

Small items are normally sent using a Royal Mail service for UK orders, and International Airmail or UPS for overseas orders

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Grove Light Sensor close up