Arduino KY-039 Heartbeat Finger Pulse Meter Sensor Module

The Arduino KY-039 Finger Pulse Meter Sensor Module is a sophisticated device designed to measure heart rate through an analog pin. This module is comprised of a LED and a photo transistor, which work in tandem to detect heart rate.The photo transistor's resistance varies in response to blood flow, enabling the pulse to be measured. However, it's important to note that obtaining completely accurate readings with this sensor can be challenging. Nevertheless, it provides a reasonable approximation of the heart rate.

Technical Specifications of the Finger Pulse Meter Sensor

• Operating Voltage: Ranges from 2.7V to 5.5V
• Frequency: Operates at 37.9Khz
• Dimensions: Measures 6.4 x 7.4 x 5.1mm in size