Crash Sensor: Bump Sensor


A miniature snap-action switch, also trademarked and frequently known as a micro switch, is an electric switch that is actuated by very little physical force. Micro switches are very widely used; among their applications are appliances, machinery, industrial controls, vehicles, and many other places for control of electrical circuits. They are usually rated to carry current in control circuits only, although some switches can be directly used in low power circuit to control small motors, solenoids, lamps, or other devices.

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This is a small micro switch sensor can be interfaced with microcontrollers like Arduino, Raspberry Pi, PIC series, 805X series etc with or without ADC (Analog to Digital Converter) as per requirement to the output. It could be directly connected to the IO Expansion shield. It integrates the pull-up resistor and the status indicator LED onboard. That makes it easier for testing.The miniature snap-action micro switch with roller lever make it suitable for more different environment application.


  • Size: 2.8 x 1.5 x 0.9 cm approximately.
  • Weight: 7 gms approximately.



  • Working Voltage: 3.3V to 5V DC
  • Directly connected to the IO Expansion shield For Arduino
  • Two mounting hole



  • Levelling and safety switches in elevators
  • Door interlock on a microwave oven
  • Vending machines
  • Detect paper jams or other faults in photocopiers
  • 3D Printer position feedback,etc


Package Contains:

  • 1 X Crash Sensor: Bump Sensor




          • Yellow – Digital output
          • Red – VCC
          • Black – GND

Additional information

Weight 0.007 kg
Dimensions 2.8 × 1.5 × 0.9 cm


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