SW-420 Vibration Sensor Module - 3.3V-5V Digital Output, Normally Closed Shock Detector for Alarm Systems

Module Interface Description (3-wire system)

• VCC: External 3.3V–5V voltage (can be directly connected to both 5V and 3.3V microcontrollers)
• GND: External GND
• OUT: Digital output interface of the small board (outputs 0 and 1)

Note:

• Do not reverse the power polarity, otherwise the chip may be burned out.
• When the switch signal indicator is lit, the output is low level; when it is off, the output is high level.
• The output level is close to the supply voltage.

• Application Scope

  Suitable for various vibration trigger functions, anti-theft alarms, smart cars, earthquake alarms, motorcycle alarms, etc.

  Compared with normally open vibration sensor modules, this module has a longer vibration trigger duration and can drive relay modules.

  Product Description

  1. When the product is not vibrating, the vibration switch is in the closed and conducting state, the output terminal outputs a low level, and the green indicator light is on;
  2. When the product is vibrating, the vibration switch disconnects instantly, the output terminal outputs a high level, and the green indicator light is off;
  3. The output terminal can be directly connected to a microcontroller. The microcontroller detects high and low levels to detect whether there is vibration in the environment and achieve an alarm effect.
   

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