Description
Reviews
| Brand | - |
| Category | Robotics / STEM Teaching Tools / Sensors |
| Origin | - |
| Model Number | SW-420 / SW-520D / SW-18010P |
| Output Type | Digital Switch Output (TTL) |
| Operating Voltage | 3.3V - 5V DC |
| Contact Configuration | Normally Open / Normally Closed selectable |
| Sensitivity Adjustment | Via onboard potentiometer |
| Indicator LED | Yes, signals vibration detection |
| Mounting Hole Diameter | 3.0 mm |
| PCB Dimensions | 32mm x 14mm x 6mm |
| Application Interface | Compatible with Arduino, Raspberry Pi, STM32 |
| Package Includes | 1x Vibration Sensor Module |
Anonymous
Mar 29, 2026
Rating: 5/5
Reliable vibration detection
We bought ten of these for a student workshop. All units functioned perfectly out of the box. They are sensitive enough to detect taps on a table but can be adjusted to ignore ambient noise.
Anonymous
Mar 28, 2026
Rating: 5/5
Compact and effective
Small form factor fits well in tight enclosures. The normally open/closed jumper selection is a nice feature that adds flexibility to circuit design without needing extra components.
Anonymous
Mar 25, 2026
Rating: 5/5
Perfect for my alarm project
This sensor works exactly as described. The sensitivity adjustment pot makes it easy to fine-tune for different applications. I used it for a DIY security box and it triggers reliably.
Anonymous
Mar 11, 2026
Rating: 4/5
Good value, easy to use
Very straightforward to connect to an Arduino Uno. The output is clean and the LED indicator is helpful for debugging. Only giving 4 stars because the documentation was minimal, but plenty of examples online.
Anonymous
Mar 10, 2026
Rating: 5/5
Solid build quality
The PCB looks well-made with clear solder points. I've been running it continuously for two weeks in a prototype alarm system with no false positives after tuning the sensitivity.
Anonymous
Mar 07, 2026
Rating: 4/5
Great for learning
As a beginner, this was easy to integrate into my first robot collision detection system. It responds quickly to impacts. Just make sure you supply the correct voltage.
Q: What is the maximum distance it can detect vibration from?
A: This is a contact-based sensor, meaning it must be physically mounted to the object you wish to monitor. It detects vibrations traveling through the solid material it is attached to, not through the air.
Q: Can this module be directly connected to a 5V Arduino pin?
A: Yes, the module operates on 3.3V to 5V DC, so it is fully compatible with 5V Arduino boards like the Uno or Mega without level shifters.
Q: Can this be used outdoors in the rain?
A: No, the bare PCB is not waterproof or weatherproof. If you need to use it outdoors, you must house it in a sealed, waterproof enclosure while ensuring the sensor can still transmit vibrations from the mounting surface.
Q: Is the output signal analog or digital?
A: The output is digital (TTL). It outputs a HIGH or LOW signal depending on whether vibration is detected and your NO/NC configuration. It does not provide an analog amplitude reading.
Q: How do I switch between Normally Open and Normally Closed modes?
A: There is a small jumper cap on the PCB. Moving the jumper to the pins labeled 'NO' sets it to Normally Open, while moving it to 'NC' sets it to Normally Closed.
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