Buy KY-039 5V Finger Heartbeat Sensor Sensor Detector Module

KY-039 5V Finger Heartbeat Sensor Sensor Detector Module

Use IR LED and an optical transistor to detect pulsation in fingers
Small and Compact module
Easy to use.

Buy KY-039 5V Finger Heartbeat Sensor Sensor Detector Module – the best price at Thingerbits Sri Lanka. Order now and we will send you within 2-3 working days.

This KY-039 Finger Detection Heartbeat Measuring Sensor Module uses bright infrared (IR) LED and a phototransistor to detect the pulse of the finger, a red LED flashes with each pulse.

The LED is the light side of the finger, and the 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 slightly changed.

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.

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.

Features :

Use IR LED and an optical transistor to detect pulsation in fingers
Small and Compact module
Easy to use.

Package Includes :

1 x KY-039 Finger Detection Heartbeat Measuring Sensor Module

Keywords:

KY-039 heartbeat sensor, 5V heartbeat sensor module, finger heartbeat detector, heartbeat sensor for Arduino, pulse sensor module, heart rate monitor sensor, KY-039 pulse detector, finger pulse sensor module, heartbeat detection module, KY-039 5V pulse sensor

Related questions:

How to use KY-039 5V Finger Heartbeat Sensor Sensor Detector Module? what is the working principle of KY-039 Heartbeat Sensor? Is KY-039 Finger Pulse Sensor compatible with Raspberry Pi? How accurate is the KY-039 5V Pulse Detector Module? Where to buy KY-039 5V Finger Heartbeat Sensor Sensor Detector Module?

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