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Home / Computer Hardware, Monitors & Peripherals / Photoresistor Sensor Module DC5V/12V Light Control Switch Photodiode Light Reception Brightness Detection

Attributes

Brand -
Category Electronic Components / Maker DIY / Computer Hardware, Monitors & Peripherals
Origin -
Operating Voltage DC 5V - 12V
Output Signal Digital Switching Output (0 and 1)
Comparator Chip LM393
PCB Dimensions 32mm x 14mm
Sensitivity Adjustment Via Blue Potentiometer
Detection Range Visible Light Spectrum
Indicator LEDs Power and Trigger Status
Mounting Hole Size 3mm Diameter
Material FR-4 Fiberglass
Weight Approx. 5 grams

5 reviews

A

Anonymous

Apr 01, 2026

Rating: 5/5

Perfect for Arduino Projects

Works exactly as described. Easy to calibrate with the potentiometer. Used it for a night light project.

A

Anonymous

Mar 24, 2026

Rating: 3/5

Works but no headers included

The module functions well, but I was disappointed that pin headers were not included. Had to solder my own.

A

Anonymous

Mar 20, 2026

Rating: 4/5

Good value but sensitive

The sensor is very sensitive to light changes. Had to adjust the pot several times to get the threshold right. Good quality otherwise.

A

Anonymous

Feb 15, 2026

Rating: 5/5

Great for automation

Using this to trigger a relay when room gets dark. Very stable output signal. Highly recommend for beginners.

A

Anonymous

Jan 19, 2026

Rating: 5/5

Reliable Light Detection

I bought five of these for a line following robot that avoids dark areas. All modules performed consistently.

5 FAQ

Q: What is the maximum current draw?

A: The module typically draws less than 20mA during operation.

Q: Is the output analog or digital?

A: This module provides a digital switching output (TTL). Some versions have analog out, but this specific one is digital.

Q: Can it detect infrared light?

A: No, this photoresistor is designed for visible light intensity detection, not IR.

Q: Can this module operate at 12V?

A: Yes, this module supports DC 5V and 12V input as specified in the title.

Q: Does it work with Raspberry Pi GPIO?

A: Yes, provided you connect the VCC to 3.3V or 5V and match the logic levels appropriately.

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