Description
Reviews
| Brand | - |
| Category | Robotics / STEM Teaching Tools / Sensors |
| Origin | - |
| Operating Voltage | DC 5V / 12V |
| Sensor Type | Photoresistor (LDR) |
| Detection Range | Visible Light Spectrum |
| Output Signal | Digital Switch (High/Low) |
| Potentiometer | Adjustable Sensitivity Control |
| Indicator LED | Power and Trigger Status |
| PCB Dimensions | 32mm x 14mm |
| Mounting Holes | 3mm Diameter |
| Interface | 3-Pin Header (VCC, GND, OUT) |
| Application | Light Control, Street Lamps, DIY Electronics |
Anonymous
Mar 26, 2026
Rating: 4/5
Solid component for students
We use these in our robotics workshop. They are durable enough to handle student handling and provide consistent results. The voltage flexibility is a nice bonus.
Anonymous
Mar 21, 2026
Rating: 5/5
Perfect for Arduino Projects
This module works flawlessly with my Arduino Uno. The sensitivity adjustment is very precise, allowing me to set the exact light threshold needed for my automatic night light project.
Anonymous
Mar 11, 2026
Rating: 5/5
Simple Integration
The digital output makes coding very simple. No need for complex analog readings if you just need an on/off trigger. The comparator chip on board does the heavy lifting.
Anonymous
Mar 06, 2026
Rating: 4/5
Good value, easy to use
Great little sensor for the price. It responded quickly to changes in lighting. I deducted one star because the soldering points were a bit small for beginners, but otherwise excellent.
Anonymous
Mar 04, 2026
Rating: 5/5
Reliable and Stable
I bought five of these for a garden lighting system. They have been running outdoors in a protective case for two months without any issues. Highly recommended.
Anonymous
Mar 01, 2026
Rating: 5/5
Exactly as described
Fast shipping and the product matches the description perfectly. The potentiometer allows for fine-tuning which is essential for indoor vs outdoor use cases.
Q: Does it work in complete darkness?
A: Yes, in complete darkness, the resistance of the photoresistor increases, which will trigger the output state (depending on your circuit logic). You can adjust the threshold using the blue potentiometer.
Q: Can this module be used directly with a Raspberry Pi GPIO?
A: Yes, since it operates at DC 5V and provides a digital output, it is compatible with Raspberry Pi GPIO pins. Just ensure you connect the VCC to the 5V pin and GND to ground.
Q: Can I run this on 3.3V instead of 5V or 12V?
A: While some units may function at 3.3V, the module is officially rated for DC 5V to 12V. For stable operation and accurate switching thresholds, we recommend using at least 5V.
Q: Is the output analog or digital?
A: This specific module provides a digital TTL output (High or Low). If you require an analog reading of light intensity, please look for our dedicated Analog Photoresistor Module.
Q: What is the maximum current this module can switch?
A: This module is designed as a signal sensor, not a power switch. The output current is typically around 15-20mA. To control high-power loads like lamps, you should use the output to trigger a relay or MOSFET.
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