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Home / Computer Hardware, Monitors & Peripherals / Photoresistor Sensor Module - Brightness & Light Detection Sensor with Light-Controlled Switch, 3/4-Pin DC5/12V

Attributes

Brand -
Category Electronic Components / Maker DIY / Computer Hardware, Monitors & Peripherals
Origin -
Operating Voltage DC 3.3V to 12V
Output Type Digital Switch (DO) & Analog (AO)
Comparator Chip LM393
Pin Configuration 3-Pin or 4-Pin Header
PCB Length 32 mm
PCB Width 14 mm
Mounting Hole 3 mm Diameter
Sensitivity Adjust Blue Potentiometer
Power Indicator Red LED
Signal Indicator Green LED

5 reviews

A

Anonymous

Apr 10, 2026

Rating: 5/5

Reliable sensor

Clean output signal, no noise issues observed during testing.

A

Anonymous

Mar 04, 2026

Rating: 3/5

Decent but basic

Functionality is fine but documentation was lacking in the package.

A

Anonymous

Mar 02, 2026

Rating: 5/5

Great for learning

Perfect for university electronics projects. Easy to interface.

A

Anonymous

Feb 15, 2026

Rating: 4/5

Good value

Works well but calibration took some time to get right.

A

Anonymous

Jan 16, 2026

Rating: 5/5

Works perfectly

Used this for an automatic night light project. Very responsive.

5 FAQ

Q: Is this waterproof?

A: No, this is an open PCB module and should be kept dry.

Q: What is the detection range?

A: It detects ambient visible light intensity variations.

Q: Are header pins included?

A: Headers are typically not soldered to allow flexible wiring.

Q: Does it output analog values?

A: Yes, the AO pin provides analog output proportional to light.

Q: Can I use this with 3.3V logic?

A: Yes, the module supports 3.3V to 5V logic levels.

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