Description
Reviews
| Brand | - |
| Category | Robotics / STEM Teaching Tools / Sensors |
| Origin | - |
| Operating Voltage | DC 4.5V - 20V |
| Detection Distance | Up to 7 meters (adjustable) |
| Detection Angle | < 120 degrees cone angle |
| Trigger Mode | L (repeatable) / H (non-repeatable) jumper selectable |
| Delay Time | 0.3s - 18s (adjustable via potentiometer) |
| Blockade Time | 2.5s (default, adjustable) |
| PCB Dimensions | 32mm x 24mm |
| Lens Type | Fresnel Lens included |
| Output Signal | High level 3.3V / Low level 0V |
| Operating Temperature | -15°C to +70°C |
Anonymous
Mar 28, 2026
Rating: 4/5
Solid performance for the cost
We stock these for our community makerspace. They are robust enough for beginners to experiment with and accurate enough for advanced prototypes. The only downside is the pin header isn't always soldered.
Anonymous
Mar 23, 2026
Rating: 5/5
Reliable motion detector
I use this to trigger a camera trap in my garden. It has survived rain (inside a protective case) and temperature fluctuations without any false triggers. Highly recommended.
Anonymous
Mar 22, 2026
Rating: 4/5
Good sensitivity, needs calibration
Works well for my hallway light automation. Initially, it was a bit too sensitive to heat changes from the sun, but after tweaking the delay and sensitivity knobs, it performs reliably.
Anonymous
Mar 16, 2026
Rating: 5/5
Exceeded expectations
The range is actually better than advertised in my testing. I get a solid 8 meters in a clear hallway. The L/H trigger mode selection is a very useful feature for different applications.
Anonymous
Mar 15, 2026
Rating: 5/5
Perfect for Arduino projects
This sensor works flawlessly with my Arduino Uno. The detection range is impressive, and the sensitivity adjustments are easy to make with the onboard potentiometers. Great value for the price.
Anonymous
Mar 02, 2026
Rating: 5/5
Essential component for robotics
Bought five of these for a university robotics project. All units functioned correctly out of the box. The documentation online is plentiful, making integration straightforward.
Q: How do I increase the detection distance?
A: You can adjust the 'Distance' potentiometer on the board clockwise to increase sensitivity and range. Note that environmental factors like temperature also affect range.
Q: Is this compatible with 5V Raspberry Pi GPIO?
A: Yes, the output high level is 3.3V which is safe for Raspberry Pi GPIO pins. However, ensure you power the module with at least 5V for stable operation.
Q: Does this come with connecting wires?
A: No, the module typically comes without pre-attached wires. You will need to solder your own connector wires to the VCC, OUT, and GND pins.
Q: What is the difference between L and H trigger modes?
A: In L mode (repeatable), the output stays high as long as motion is detected. In H mode (non-repeatable), the output goes high upon detection and stays high for the set delay time regardless of continued motion.
Q: Can this sensor detect motion through glass?
A: No, PIR sensors cannot detect infrared radiation through glass. The lens must have a direct line of sight to the moving object.
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