A
Anonymous
Apr 07, 2026
Rating: 5/5
Great quality module
Solid PCB and components. Detected light changes instantly without any lag.
Description
This photoresistor sensor module detects light intensity for use in electronic circuits and automation projects. It features a light-dependent resistor that changes resistance based on ambient brightness, operating on DC 5V or 12V power with available 3-pin or 4-pin connection options. The compact design allows for easy integration into breadboards or custom PCB layouts for DIY applications. Ensure the operating voltage matches your specific project requirements before connecting to prevent component damage.
Reviews
Attributes
| Brand | - |
| Category | Root / Electronic Components / Maker DIY |
| Origin | - |
| Operating Voltage | DC 3.3V - 5V |
| Output Signal | Digital Switching Output (0/1) |
| Comparator Chip | LM393 |
| Sensitivity Adjustment | Adjustable via Potentiometer |
| Pin Configuration | 3-Pin (VCC, GND, OUT) |
| PCB Dimensions | 32mm x 14mm |
| Mounting Hole Size | 3mm Diameter |
| Power Indicator | Red LED |
| Output Indicator | Green LED |
| Compatibility | Arduino, Raspberry Pi, STM32 |
5 reviews
A
Anonymous
Mar 26, 2026
Rating: 5/5
Reliable sensor
Using this for line following and light tracking. No issues so far after weeks of use.
A
Anonymous
Mar 14, 2026
Rating: 5/5
Works perfectly with Uno
Very easy to integrate into my project. The sensitivity adjustment is smooth and responsive.
A
Anonymous
Mar 13, 2026
Rating: 5/5
Excellent value
Cheap and effective. Bought five for different projects and all function correctly.
A
Anonymous
Mar 11, 2026
Rating: 4/5
Good but no headers
Module works well but I had to solder my own pin headers which was a minor inconvenience.
5 FAQ
Q: Can I use this with Raspberry Pi?
A: Yes, connect the OUT pin to a GPIO input pin configured for digital read.
Q: Does it provide analog output?
A: This module provides digital output. The raw LDR is analog but the board converts it.
Q: Is this compatible with 3.3V logic?
A: Yes, this module operates safely between 3.3V and 5V.
Q: What does the potentiometer do?
A: It adjusts the sensitivity threshold for the digital output signal.
Q: Are pin headers included?
A: Headers are typically not included to save shipping space and cost.
