A
Anonymous
Apr 12, 2026
Rating: 5/5
Fast Delivery
Arrived quickly. Package was secure. Module is compact and fits well on my custom PCB.
Description
This light sensor module functions as a photoresistor or photoelectric switch designed for integration into smart car projects. It detects ambient light intensity to trigger automatic control responses in electronic circuits. The compact board features standard connection interfaces suitable for DIY robotics and vehicle automation systems. Ensure proper voltage alignment when connecting to your microcontroller to maintain optimal sensing performance.
Reviews
Attributes
| Brand | - |
| Category | Root / Electronic Components / Maker DIY |
| Origin | - |
| Operating Voltage | 3.3V - 5V DC |
| Output Signal | Digital Switch Output (0 and 1) |
| Sensor Type | Photoresistor (LDR) |
| Comparator IC | LM393 |
| PCB Size | 32mm x 14mm |
| Mounting Hole | 3mm Diameter |
| Power LED | Red Power Indicator |
| Output LED | Green Output Indicator |
| Sensitivity | Adjustable via Potentiometer |
| Connector | 3-Pin PH2.54 Interface |
5 reviews
A
Anonymous
Mar 28, 2026
Rating: 5/5
Perfect for Arduino
Works exactly as described. Easy to calibrate with the potentiometer. Using it for light avoidance robot.
A
Anonymous
Mar 27, 2026
Rating: 3/5
Decent but basic
It works, but the documentation was minimal. Had to look up wiring online. Good for beginners though.
A
Anonymous
Mar 10, 2026
Rating: 4/5
Good value
Solid build quality. Took a little time to get the sensitivity right for outdoor use, but works great indoors.
A
Anonymous
Feb 18, 2026
Rating: 5/5
Great for Smart Car Kits
Bought this for a light seeking car project. Response time is quick and voltage levels are stable.
5 FAQ
Q: Is the output analog or digital?
A: This module provides a digital output. For analog, read the LDR directly with an ADC.
Q: Does it come with jumper wires?
A: No, the module is sold separately. Wires are not included in this package.
Q: Can it handle 12V input?
A: No, maximum input is 5V. Higher voltage may damage the LM393 chip.
Q: What is the detection range?
A: It detects ambient light intensity changes rather than distance. Range depends on light source.
Q: Is this compatible with Raspberry Pi?
A: Yes, it works with 3.3V logic. Ensure proper GPIO mapping.
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