Light Sensor

Description The Light Sensor Module helps detect how bright the surrounding environment is. It works well in projects like smart home setups solar-powered garden lights, energy-saving gadgets, or automatic lighting systems. A high-quality photoresistor (LDR) pairs with a 10K adjustable resistor on this module making it easy to set thresholds and measure light levels in […]

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Description

The Light Sensor Module helps detect how bright the surrounding environment is. It works well in projects like smart home setups solar-powered garden lights, energy-saving gadgets, or automatic lighting systems. A high-quality photoresistor (LDR) pairs with a 10K adjustable resistor on this module making it easy to set thresholds and measure light levels in various conditions.

The Light Sensor relies on the LM393 comparator and provides both analog and digital outputs. Its analog signal changes depending on the light level. The digital signal flips between high and low based on a set threshold. This flexibility makes it a good choice to monitor light in real time or handle automatic tasks.

The light sensor works with microcontroller boards like Arduino, ESP32, and MCLab. It fits into your electronics projects due to its super small and lightweight build.

This Light Sensor Module works great if you’re just starting out enjoying a hobby, or teaching others. It handles things like basic light triggers or complex automation setups. It gives steady and accurate light detection for any project needing it.

Features

  • Differential voltage design
  • Analog and digital output
  • Development platforms: Arduino, MCLab
  • 2 x LEGO compatible holes

Includes

  • 1 x Unit Light
  • 1 x HY2.0-4P Grove cable (20cm)

Applications

  • Light control switch
  • Solar garden lights
  • Infrared surveillance cameras

Specifications

Specification Parameter
Adjustable resistor 10K
Product dimensions 32 x 24 x 8mm
Package dimensions 136 x 92 x 10mm
Product weight 4g
Gross weight 17g

Frequently Asked Questions

It detects light in the environment using a photoresistor and outputs both analog and digital signals.

It works with Arduino ESP32, MCLab, and other microcontrollers that handle analog and digital inputs.

The photoresistor changes its resistance as light increases or decreases, which helps it measure light intensity .

You can. The module has a 10K adjustable resistor to set the light level needed to trigger the digital output.

It offers both analog output with varying voltage and digital output as high or low to use in different types of projects.

Yes, it works well in STEM activities, electronics lessons, and personal hobby projects.

It fits with automatic lights solar-powered garden lights, devices that save energy, and systems that respond to light.

Customer Reviews

Amina
Amina
04/05/2024 at 10:53 AM
Perfect for my smart lighting project. Easy to integrate and works flawlessly.
Zayd
Zayd
07/02/2024 at 4:07 PM
Reliable sensor. Adjustable sensitivity is a great feature. Documentation could be clearer.
Smith
Smith
10/26/2024 at 12:00 PM
Used this in an Arduino setup. It provides accurate light level readings
Muniza
Muniza
12/31/2024 at 4:42 PM
Good sensor for basic applications. Not suitable for high-precision tasks.
Raymon
Raymon
03/24/2025 at 10:06 AM
Great for automating lighting systems. Easy to calibrate and use.
Rihana
Rihana
06/06/2025 at 1:58 PM
Compact and efficient. Works well for my home automation projects.
Shehhi
Shehhi
09/07/2025 at 5:29 PM
Decent performance. The sensor is responsive and easy to set up.
Aisha T.
Aisha T.
5/06/2025 at 9:10 AM
Works okay for detecting light changes, but the threshold adjustment is very sensitive and small tweaks move it too much
John M
John M
2/09/2025 at 4:40 PM
The manual is minimal — as a beginner I had trouble figuring out how to wire it correctly.