Description

Specification Details
Sensor type Mechanical spring-contact vibration switch
Operating voltage Typically 3.3–5 V DC; confirm board version
Comparator LM393
Sensor contact Normally open; briefly closes during vibration
Digital output — DO Typically HIGH at rest and briefly LOW when triggered
Adjustment Onboard potentiometer adjusts the detection threshold
Analog output — AO Available on four-pin versions; raw sensor signal, not calibrated vibration strength
Connections VCC, GND, DO and AO on the pictured four-pin version
Indicators Power and trigger-status LEDs
Mounting PCB mounting holes
Interface Digital GPIO; ADC input for AO
Measurement capability Detects vibration events; does not measure acceleration in g
Applications Anti-theft alarms, impact detection, movement-triggered projects and robotics