Project16.Shock Sensor
========================

Description
------------
The KY-002 Vibration Switch Module detects shaking and knocking. When the module 
is moved, a spring mechanism will close the circuit sending a short high signal.
 
It can be used with a variety of microcontrollers like Arduino, ESP32, Raspberry 
Pi and others.

Specification
--------------
- Operating Voltage	5V
- Board Dimensions	18.5mm x 15mm [0.728in x 0.591in]

Connect
--------
.. image:: /img/connect/16_bb.png

Code
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.. code-block:: c

    int Led = 13; // define the LED Pin
    int shock = 3; // define the sensor Pin 
    int val; // define a numeric variable val 

    void setup () {
        pinMode (Led, OUTPUT); // LED pin as output  
        pinMode (shock, INPUT); // input from KY-002 sensor
    } 

    void loop () {
        val = digitalRead (shock); // read the value from KY-002
        if (val == HIGH ) {// when sensor detects shock, LED flashes  
            digitalWrite(Led, LOW);
        } else {
            digitalWrite (Led, HIGH);
        }
    }

Phenomenon
-----------
.. image:: /img/phenomenon/16.jpg