SW-420 Vibration Sensor Module for Arduino

Description

SW-420 Vibration Sensor Module based on the vibration sensor SW-420 and Comparator LM393 is used to detect vibrations. The threshold is adjusted using an on board potentiometer. 

It is used as a voltage comparator in this vibration sensor module. Pin 2 of LM393 is connected to Preset (10KΩ Pot) while pin 3 is connected to vibration sensor. It compares the threshold voltage set using the preset (pin2) and the Vibration Sensor pin (pin3).

Preset (Trimmer pot)

Uses the onboard preset to adjust the threshold (sensitivity) of the digital output.

SW-420 Vibration Switch

It recognizes the amplitude of the vibration to which it is exposed. Switch response is either electrical contact closure or contact opening. The electrical contact may be either an electromechanical relay or a solid state device.

Features of SW-420 Vibration Sensor Module

• Has a working voltage of between 3.3 V to 5 V
• It has a Digital switch output 0 and 1
• Also Equipped with fixed bolt hole. Therefore, has a convenient installation
• Moreover, has a PCB size of 3.2 cm x 1.4 cm
• LM393 wide voltage comparator
• Operating Current of 15mA
• Also has LEDs indicating output and power
• Easy to use with Microcontrollers or even with normal Digital/Analog IC
• Lastly, it is Small, cheap and easily available

Applications

• It is used in Theft alarm
• Also used in Smart car
• In addition to that, used in Earthquake alarm
• To add on that, used in Motorcycle alarm
• Last but not least Used in Shocks triggering

Datasheet