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Home / Sensors / Photodiode Module Light Control Switch Board Photosensitive Sensor Light Reception Brightness Induction Detection Board

Attributes

Brand -
Category Robotics / STEM Teaching Tools / Sensors
Origin -
Operating Voltage 3.3V - 5V DC
Output Signal Digital Switching (High/Low)
Detection Component High-Sensitivity Photodiode
Adjustment Feature Potentiometer for Sensitivity Tuning
Indicator LED Yes, Power and Output Status
Mounting Hole Diameter 3.0 mm
PCB Dimensions 32mm x 14mm x 4mm
Response Time < 1ms
Compatible Platforms Arduino, Raspberry Pi, STM32
Application Range Light Control, Automatic Street Lights, Camera Exposure

6 reviews

A

Anonymous

Mar 30, 2026

Rating: 5/5

Perfect for my Arduino project

This photodiode module worked exactly as expected. The sensitivity adjustment via the potentiometer is very smooth, allowing me to set the exact light threshold needed for my automatic night light project.

A

Anonymous

Mar 30, 2026

Rating: 5/5

Great sensitivity range

The range of detection is impressive. It can distinguish between dim indoor lighting and complete darkness easily. Highly recommended for students and hobbyists.

A

Anonymous

Mar 18, 2026

Rating: 5/5

Exceeded expectations

Fast shipping and the product arrived well-packaged. The board layout is clean, and the soldering points are easy to work with if you need to add custom wires.

A

Anonymous

Mar 16, 2026

Rating: 4/5

Good value, clear instructions

Solid build quality for the price. It detected changes in ambient light instantly. I deducted one star only because the pin headers were not pre-soldered, but that's standard for these modules.

A

Anonymous

Mar 14, 2026

Rating: 5/5

Reliable sensor

I used this to control a relay based on room brightness. It has been running for two weeks without any false triggers. The output signal is clean and stable.

A

Anonymous

Mar 02, 2026

Rating: 4/5

Works well with 3.3V logic

Tested successfully with an ESP32 running at 3.3V. No level shifter needed. The LED indicator is bright enough to see status at a glance but not blinding.

5 FAQ

Q: Can I power this directly from a 9V battery?

A: No, the operating voltage is strictly 3.3V to 5V DC. Connecting it directly to a 9V source may damage the component. Please use a voltage regulator if your power source exceeds 5V.

Q: Does this module output analog or digital signals?

A: This specific module outputs a digital signal (HIGH or LOW) based on the threshold you set with the potentiometer. If you need analog values, please check our separate analog photodiode listings.

Q: Is the sensitivity adjustable in real-time?

A: Yes, there is a blue potentiometer on the board. You can turn it with a small screwdriver while the module is powered to adjust the light intensity threshold immediately.

Q: Does this come with jumper wires?

A: The package includes the PCB module only. Jumper wires are not included but are readily available in our accessories section.

Q: What is the maximum current this sensor can switch?

A: The onboard comparator output is designed for logic signals and cannot drive high-current loads directly. You should use the output to trigger a transistor, MOSFET, or relay module for higher current applications.

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