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KY-039 5V Finger Detection Heartbeat Sensor Module Detector For Arduino

৳ 244.00

Pulse monitor works as follows: The LED is the light side of the finger, and phototransistor on the other side of the finger, phototransistor used to obtain the flux emitted, when the blood pressure pulse by the finger when the resistance of the phototransistor will be slight changed.
With a very high resistance resistor R1, because most of the light through the finger is absorbed,it is desirable phototransistor sensitive enough.Resistance can be selected by experiment to get the best results.
Earn 244 ROBO-Points worth ৳ 2.44

Description

KY-039 5V Finger Detection Heartbeat sensor price in bd Module Detector For Arduino

Product Description: Heartbeat sensor price in bd

Heartbeat sensor price in bd the KY-039 Finger Detection can be used to detect the heartbeat signal using finger. This sensor has an analog output. By placing your finger on the module, you can see the heartbeat signal through the analog output pin. We chose a very high resistance resistor R1 because most of the light through the finger is absorbed, it is desirable that the phototransistor is sensitive enough. Resistance can be selected by experiment to get the best results. The most important is to keep the shield stray light into the phototransistor.

Specification: Heartbeat sensor price in bd

KY-039 Finger Detection Heartbeat Sensor is a Low cost Heart beat Sensing Module. This Heart beat detection module uses bright infrared (ir) led and a photo-transistor to detect the pulse of the finger, a red led flashes with each pulse.

  • Pulse monitor works as follows: the led is Turned ON on one side of the finger, and photo-transistor is on the other side of the finger.
  • The photo-transistor used to obtain the flux emitted, when the blood flows through the finger then the resistance of the photo-transistor will be vary slightly.
  • The most important is to keep the shield stray light into the photo-transistor. For home lighting that is particularly important because the lights at home mostly based 50hz or 60hz fluctuate, so faint heartbeat will add considerable noise.
  • Use IR LED and an optical transistor to detect pulsation in fingers
  • Small and Compact module
  • Easy to use.

Connecting Heart Beat Module to Arduino: Heartbeat sensor price in bd

1. Sensor pin S connect to Arduino pin Analog 0 / A0

2. Sensor pin + (middle pin) connect to Arduino pin 5+

3. Sensor pin – connect to Arduino pin GND

Package includes: 
1 x Finger Detection Heartbeat Sensor
Example Code: Heartbeat sensor price in bd

// Pulse Monitor Test Script
int sensorPin = 0;
double alpha = 0.75;
int period = 100;
double change = 0.0;
double minval = 0.0;
void setup ()
{
Serial.begin (9600);
}
void loop ()
{
static double oldValue = 0;
static double oldChange = 0;

int rawValue = analogRead (sensorPin);
double value = alpha * oldValue + (1 – alpha) * rawValue;

Serial.print (rawValue);
Serial.print (“,”);
Serial.println (value);
oldValue = value;

delay (period);
}

100% satisfaction guarantee:

We offer you to 100% satisfaction guarantee on our products. So, If you have any problem with our products then please contact with us and we will be happy to solve the problem for you. Heartbeat sensor price in bd.

Equally Important that Customer satisfaction is our highest priority.
In addition, our every products that we sell has a strict quality inspection. So that, If you want to buy our products then do not hesitate to add them to the cart and buy it. Correspondingly, We are committee to providing you best products and services.


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Arduino Uno R3

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