Description
Reviews
| Brand | - |
| Category | Robotics / STEM Teaching Tools / Sensors |
| Origin | - |
| Brand | TELESKY |
| Operating Voltage | 3.3V - 5V DC |
| Output Signal | Digital Switching Output (0 and 1) |
| Detection Component | LDR Photoresistor |
| Sensitivity Adjustment | Potentiometer Adjustable |
| PCB Size | 32mm x 14mm |
| Mounting Hole Diameter | 3mm |
| Comparator Chip | LM393 |
| Application Scope | Arduino, Raspberry Pi, DIY Electronics |
| Package Contents | 1 x Light Sensor Module |
Anonymous
Mar 27, 2026
Rating: 4/5
Good value, easy to use
Great little module for the price. It connected easily to my microcontroller. I deducted one star because the included pins were not pre-soldered, but that's minor for hobbyists.
Anonymous
Mar 25, 2026
Rating: 5/5
Perfect for my Arduino project
This sensor module works exactly as described. The sensitivity adjustment via the potentiometer is very smooth, allowing me to set the exact light threshold needed for my automatic night light project.
Anonymous
Mar 21, 2026
Rating: 5/5
Reliable and responsive
I bought five of these for a line-following robot variation that reacts to light zones. All units performed consistently with fast response times. Highly recommended for students.
Anonymous
Mar 18, 2026
Rating: 5/5
Compact and efficient
The form factor is small enough to fit into tight enclosures. The LM393 comparator provides a clean digital signal which makes coding the logic very straightforward.
Anonymous
Mar 14, 2026
Rating: 5/5
Excellent build quality
The PCB looks professional and the soldering points are clear. I've been running this continuously for a week in a smart home prototype with zero issues.
Anonymous
Mar 13, 2026
Rating: 4/5
Works well after calibration
Took me a minute to figure out how to tune the potentiometer correctly, but once I did, it triggers perfectly when the room lights go off. Good learning component.
Q: Is the light detection range adjustable?
A: Absolutely. There is a blue potentiometer on the board that allows you to adjust the sensitivity threshold. Turning it changes the light level at which the digital output switches state.
Q: Can I power this with 3.3V from a Raspberry Pi?
A: Yes, the operating voltage range is 3.3V to 5V DC, so it is fully compatible with both 3.3V and 5V microcontrollers like the Raspberry Pi and Arduino.
Q: Does this module output analog or digital signals?
A: This specific TELESKY module outputs a digital signal (HIGH/LOW). If you need analog readings of light intensity, you would need to connect the LDR directly to an analog pin without the comparator board.
Q: Does this come with jumper wires?
A: The package typically includes the sensor module only. Jumper wires and headers are usually sold separately, though some bundles may vary. Please check your specific order details.
Q: What is the maximum current this sensor can switch?
A: The onboard LED indicator draws very little current. The digital output pin is designed to interface with microcontroller GPIOs and should not be used to drive high-power loads directly. Use a relay or transistor for heavy loads.
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