Shock Sensor Module

The sensor detects when the module is hit or bumped.

Description

The Shock Sensor Module detects when the module is tapped or bumped.

PACKAGE INCLUDES:

• Shock Sensor Module

KEY FEATURES OF SHOCK  SENSOR MODULE:

• Outputs a logic LOW when module is hit or bumped
• 3.3 and 5V compatible

This module incorporates a mechanical sensor in a black housing.   The output of the module is normally HIGH.  When the sensor is tapped, the output momentarily transitions LOW.

If the module is tilted from vertical to horizontal the output may transition to LOW and stay there, but that varies with the sensor and so they are not well suited as for use as a tilt sensor.

Module Connections

There is a 3-pin header on the assembly for making connections.

1 x 3 Header 

• ‘-‘  = Ground
• Center pin = Vcc (3.3 – 5V)
• S = Signal output, connects to digital input on uC

OUR EVALUATION RESULTS:

This is a basic module that can be used to experiment with a number of applications which take some type of action when a physical tap or knock is detected.

When tapped, the switch will transition from HIGH to LOW multiple times as shown in the scope capture below.  If monitoring the output of the sensor with an MCU input, it may need to be debounced in the software in the same fashion as a typical mechanical switch would be by ignoring transitions for a period of time after the first HIGH to LOW transition is detected.

BEFORE THEY ARE SHIPPED, THESE MODULES ARE:

• Inspected
• Basic operation verified
• Packaged in a resealable ESD bag for protection and easy storage.

Notes: 

1. Module similar to or same as KY-002.

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Technical Specifications

Operating Ratings	Vcc Range	3.3 – 5V
	Logic high	Pulled to Vcc
	Logic Low	< 0.1V
Dimensions	L x W (PCB)	19 x 16mm  (0.75 x 0.6″)
	L x W (including Sensor)	26 x 16mm  (1 x 0.6″)

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