Crowtail-Knock Sensor

Description

The Crowtail-knock sensor is a piezoelectric sensor that contains a piezoelectric sensing crystal and a resister. This crystal creates a small amount of voltage when shaken and takes advantage of this unique property. It will output a pulse when vibration is detected.
Model: CRT00516K

Features

• Digital Crowtail connector

Specifications

Item	Value
Presence sensing	vibration
Sensor	KY-031
Power supply	5V
Dimensions(mm)	20.0(L)x20.0(W)x7.1(H)

Pin Map

Pin Name	Description
VCC	Supply Voltage
GND	GND
SIG	Output a pulse when vibration is detected

Platforms Supported

Arduino

Usage

Hardware

STEP1 Prepare the below stuffs:

Crowduino Uno	Base Shield	Crowtail-Knock Sensor	Crowtail-LED
Get one now	Get one now	Get one now	Get one now

STEP2 Plug Crowtail-Base Shield into Crowduino Uno ;

STEP3 Plug Crowtail-Knock Sensor into D2 slot on the Crowtail-Base Shield I Port with Crowtail cable;

STEP4 Plug Crowtail-LED into D3 slot on the Crowtail-Base Shield I Port with Crowtail cable;

STEP5 Connect Crowduino Uno to PC via a Mini USB cable.

NOTE

If we don't have Crowtail Base Shield, We also can directly connect this module to Crowduino Uno as below.

Crowduino Uno	Crowtail-Knock Sensor	Crowtail-LED
DIGITAL 2	SIG	\
DIGITAL 3	\	SIG
5V	VCC	VCC
GND	GND	GND

Software

STEP 1.Download program filesKnock_Sensor.zip

STEP2 Configure controller board&communication port

On top of the Arduino IDE, click “Tools>Board>” and select “Arduino Uno” from the available options

Select the COM port that indicates Arduino Uno. Please note that the actual numbers after the “COM” word will vary from computer to computer, so they could be different from the ones shown in the figure.

STEP 3 Load the program in the Arduino IDE

const int SensorPin = 2;     // the number of the pushbutton pin
const int ledPin =  12;      // the number of the LED pin

// variables will change:
int SensorState = 0;         // variable for reading the pushbutton status

void setup() {
  // initialize the LED pin as an output:
  pinMode(ledPin, OUTPUT);      
  // initialize the pushbutton pin as an input:
  pinMode(SensorPin, INPUT);     
}

void loop(){
  // read the state of the pushbutton value:
  SensorState = digitalRead(SensorPin);

  // check if the pushbutton is pressed.
  // if it is, the buttonState is HIGH:
  if (SensorState == HIGH) {     
    // turn LED on:    
    digitalWrite(ledPin, HIGH);  
  } 
}

STEP4 Click the to upload the code to the Crowduino board

STEP5 After the program is downloaded, knock the sensor you will see the LED lights up.

FAQS

You can list you question here or contact with techsupport@elecrow.com for technology support.

Resources

Knock_Sensor.zip
Crowtail-_Knock_Sensor_v2.0-Eagle_file.zip