Description: SW-420 NC Type Vibration Sensor Module

SW-420 SW420 Vibration Sensor Switch Module DC 3V 5V Normally Close High Sensitivity Vibration Sensor Switch Module Alarm Trigger Movement Sensor LM393 Digital Analog For Arduino

Vibration sensor module alarm Motion sensor module vibration switch SW-420 module based on the vibration sensor SW-420 and Comparator LM393 to detect if there is any vibration that beyond the threshold. The threshold can adjust using an onboard potentiometer. When this no vibration, this module output logic LOW the signal indicates LED light, and vice versa.

If the module does not vibrate, the vibration switch was on the close state, the output of low output, the green indicator light. The product vibrates, vibration switches momentary disconnect, the output is driven high, the green light does not shine.

The output can connect to the microcontroller, which to detect high and low level; so as to detect whether the environment exists vibration, play a role in the alarm.

Features:

• 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

Vibration Sensor Module Features & Specifications

• Operating Voltage: 3.3V to 5V DC
• Operating Current: 15mA
• Using SW-420 normally closed type vibration sensor
• LEDs indicating output and power
• LM393 based design
• Easy to use with Microcontrollers or even with normal Digital/Analog IC
• With bolt holes for easy installation
• Small, cheap and easily available

SW-420 Vibration Switch

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

LM393 IC

LM393 Comparator IC 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. The comparator IC will compare the threshold voltage set using the preset (pin2) and the Vibration Sensor pin (pin3).

Preset (Trimmer pot)

Using the onboard preset, you can adjust the threshold (sensitivity) of the digital output.

Applications of Vibration Sensor Module

• Shocks triggering
• Theft alarm
• Smart car
• Earthquake alarm
• Motorcycle alarm

Note:

• Do not reverse the power directions, 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.

• 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