SW-18015P Piezoelectric Shock and Tap Vibration Switch Module
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Prices updated: 13 Oct 2026
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About this product
A 4-pin piezoelectric shock and tap sensor module, SW-18015P, that outputs a high TTL signal when vibration is detected. It also provides an analog output whose voltage rises with vibration intensity, and a potentiometer adjusts sensitivity. It suits knock detection and vibration alarms.
Specifications
- Model
- SW-18015P
- Sensor type
- Piezoelectric / بيزوكهربائي
- Digital output
- TTL, high on vibration / TTL، عالٍ عند الاهتزاز
- Analog output
- Voltage rises with vibration intensity / يرتفع الجهد مع شدة الاهتزاز
- Sensitivity
- Adjustable by potentiometer / قابلة للضبط بمقاومة متغيرة
- Pins
- 4 pins / 4 أطراف
Frequently asked questions
What are the pins?
The module has four pins, typically labeled VCC, GND, a digital output (DO) and an analog output (AO). Check the labels printed on the board before wiring.
How do I adjust the sensitivity?
Turn the onboard potentiometer. The digital output goes high when the vibration exceeds the threshold you set, so adjust it while testing with the actual knock or vibration source.
