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Home / Computer Hardware, Monitors & Peripherals / Photodiode Module Light-Control Switch Board Photosensitive Sensor Light Reception Brightness Sensing Detection Board

Attributes

Brand -
Category Electronic Components / Maker DIY / Computer Hardware, Monitors & Peripherals
Origin -
Operating Voltage 3.3V - 5V DC
Output Signal Digital Switch Output (TTL)
Detection Range Visible Light Spectrum
PCB Size 32mm x 14mm
Comparator Model LM393
Potentiometer Adjustable Sensitivity
Indicator LED Power and Output Status
Mounting Hole 3mm Diameter
Operating Temperature -10°C to 50°C
Package Includes 1 x Photodiode Module

5 reviews

A

Anonymous

Mar 29, 2026

Rating: 3/5

Instructions could be better

The hardware works fine, but the pinout was not clearly marked on the board itself. Had to look up the datasheet to confirm VCC and GND.

A

Anonymous

Mar 19, 2026

Rating: 5/5

Perfect for night light circuit

Very stable performance. I have been running this for a week straight without any false triggers. Compact size fits well in my enclosure.

A

Anonymous

Mar 17, 2026

Rating: 5/5

Great for Arduino projects

Works perfectly with my microcontroller setup. The sensitivity adjustment is very responsive and easy to calibrate using the onboard potentiometer.

A

Anonymous

Feb 07, 2026

Rating: 5/5

Exactly as described

Fast detection and clean digital signal. I used this for a automatic night light project and it switches reliably at dusk.

A

Anonymous

Jan 30, 2026

Rating: 4/5

Sensitive but needs tuning

Good module overall. It took some time to get the threshold right for my specific lighting conditions, but once set, it remains stable.

5 FAQ

Q: Is the output signal analog or digital?

A: This module provides a digital switch output (TTL level). It goes high or low depending on the light intensity threshold you set.

Q: Can this module handle 12V input?

A: No, the operating voltage is strictly 3.3V to 5V DC. Connecting 12V may damage the comparator chip and the photodiode.

Q: Does the potentiometer adjust sensitivity or threshold?

A: The potentiometer adjusts the detection threshold. Turning it changes the light intensity level required to trigger the output switch.

Q: What is the pinout configuration?

A: The pins are typically labeled VCC, GND, and OUT. Please check the silkscreen on the board for exact positioning.

Q: Is this suitable for outdoor use?

A: The PCB itself is not waterproof. We recommend housing it in a weatherproof enclosure if used outdoors.

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