If the module does not vibrate- the vibration switch was closed on state- an output of low output- the green indicator light.
The product vibrates- vibration switches momentary disconnect- output is driven high- the green light does not shine.
The output can be directly connected with the microcontroller- which to detect high and low level- so as to detect whether the environment exists vibration- play a role in the alarm.
Using SW-420 normally closed type vibration sensor
Comparator output- clean signal- good waveform- strong driving ability- >15mA
Working voltage 3.3V ~ 5V
Output format: digital switching output (0 and 1)
Using a wide voltage LM393 comparator
With bolt holes for easy installation
Small PCB size: 3.2 x 1.4cm
Power direction cannot be reversed- otherwise, it is possible to burn the chip
Signal LED light is output Low- signal LED OFF output is High
The output level close to the input voltage
Various vibrations trigger: Arduino- Smart car- Earthquake alarm- Motorcycle Alarm- Theft alarm