Mini Fingers Measuring Detect szívverés érzékelő modul Arduinohoz

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Mini Fingers Measuring Detect Heartbeat Sensor Module For Arduino
 Features:
This project uses bright infrared (IR) LED and a phototransistor to detect the pulse of the finger, a red LED flashes with each pulse
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
We chose a very high resistance resistor R1, because most of the light through the finger is absorbed,it is desirable phototransistor sensitive enoughResistance 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
Module: Heartbeat Sensor
Compatible with Arduino
Size:19 x 15cm
 
 
Package Include
1 x  Detect Hearbeat Sensor Module