The module is based on the vibration sensor SW-420 and Comparator LM393 to detect if there is any vibration beyond the threshold. The threshold can be adjusted by the onboard potentiometer. When this no vibration, this module output logic LOW the signal indicate LED light, and vice versa. Application Idea Used to trigger the effect of various vibration, theft alarm, intelligent car, earthquake alarm, motorcycle alarm, etc. This module is compared with the normally open type vibration sensor module, vibration trigger for longer periods of time, can drive the relay module Module features: The comparator output, signal clean, good waveform, driving ability is strong, for more than 15 ma Working voltage of 3.3V to 5V Output form: digital switch output (0 and 1) Has a fixed bolt hole, convenient installation Small board PCB size: 3.2cm x 1.4cm Use the LM393 wide voltage comparator
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