KY-039 Finger Detection Heartbeat Measuring Sensor Module
![Finger Detection Heartbeat Measuring Sensor Module_1]()
![Finger Detection Heartbeat Measuring Sensor Module]()
![Finger Detection Heartbeat Measuring Sensor Module_2]()
![Finger Detection Heartbeat Measuring Sensor Module_3]()
![Finger Detection Heartbeat Measuring Sensor Module_1]()
![Finger Detection Heartbeat Measuring Sensor Module]()
![Finger Detection Heartbeat Measuring Sensor Module_2]()
![Finger Detection Heartbeat Measuring Sensor Module_3]()
The LED is the light side of the finger, and the phototransistor is 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 from stray light into the phototransistor.
For home lighting that is particularly important because the lights at home are mostly based on 50HZ or 60HZ fluctuate, so a faint heartbeat will add considerable noise.
-17%
KY-039 Finger Detection Heartbeat Measuring Sensor Module
Available:In Stock
- Product SKU: KG1169
₹ 32
₹ 39
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Warehouse Details
Specification
Description
KY-039 Finger Detection Heartbeat Measuring Sensor Module
This KY-039 Finger Detection Heartbeat Measuring Sensor Module uses a 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 is 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 from stray light into the phototransistor.
For home lighting that is particularly important because the lights at home are mostly based on 50HZ or 60HZ fluctuate, so a faint heartbeat will add considerable noise.
Technical Details
- Item Type: Sensor
- Model Type: Heart Rate Sensor
- Weight: 3g
Features
- Use IR LED and an optical transistor to detect pulsation in fingers
- Small and Compact module
- Easy to use
Applications :
- Heart rate monitoring
- Biomedical and health projects
- Wearable fitness devices
- Arduino and microcontroller projects
- Medical research and experiments
- DIY pulse detection systems
Physical Attributes
- Dimensions(mm): 23.3 x 16x 1.4
- Weight: 3 g
Package Includes
- 1 x KY-039 Finger Detection Heartbeat Measuring Sensor Module
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