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Low noise amplifier (LNA) for noise supression
It can operate with Arduino Uno
Operating Temperature Range : -40º ~ +95º C
only the infrared light is needed
74HC259 is an 8-bit addressable latch
KY039 Finger Detection Heartbeat Measuring Sensor Module antenna Low noise amplifier (LNA) forIntroduction: Finger Detection Heartbeat Measuring Sensor Module KY 039 uses bright infrared (IR) LED and a phototransistor to detect the pulse of the finger, a red LED flashes with each pulse. This component is ideally suited to adding heartbeat sensing to your project. Pulse monitor works as follows: The LED is the light side of the finger, and phototransistor on the other side of the finger, photo transistor used to obtain the flux emitted, when
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