Purpose:

It is used for various vibration triggering functions, theft alarm, intelligent car, earthquake alarm, motorcycle alarm, etc.

Compared with the normally open vibration sensor module, this module takes longer to trigger vibration and can drive the relay module



Module features:

1. Sw-420 normally closed vibration sensor is adopted

2. Comparator output, clean signal, good waveform, strong driving capacity, more than 15mA

3. Working voltage 3.3v-5v

4. Output mode: digital switching value output (0 and 1)

5. Small board PCB size: 3.2cm x 1.4cm



Module instructions:



1. When the product does not vibrate, the vibration switch is in a closed and conductive state, the output end outputs a low level, and the green indicator light is on;



2. When the product vibrates, the vibration switch is momentarily disconnected, the output end outputs a high level, and the green indicator light is not on;



3. The output terminal can be directly connected with the single chip microcomputer to detect the high and low levels, so as to detect whether there is vibration in the environment and play an alarm role