1/2/5/10PCS 5V Heartbeat Sensor Senser Detector Module By Finger For Arduino
ab 1,14 €
Arduino Test Code. 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.
Jetzt bei Ebay:
