B2B Enquiry:
This KY-039 Finger Detection Heartbeat Measuring Sensor Module uses bright infrared (IR) LED and a phototransistor to detect the pulse of the finger, a red LED flashes with each pulse. 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 stray light into the phototransistor.
KY-039 Finger Detection Heartbeat Measuring Sensor Module
₹39.00 (Excl. GST 18%)
Availability: In stock
- Use IR LED and an optical transistor to detect pulsation in fingers
- Easy to use.
- Small and Compact module
| Weight | 0.005 kg |
|---|---|
| Dimensions | 4 × 1.5 × 1 cm |
| SKU/Model Number | KY039-HR |
| Category Type | Sensors |
| Material | PCB, Plastic |
| Color | Blue |
| Input Voltage (V) | 3.3 to 5 |
| Output Voltage (V) | Digital signal |
| Current Rating (A) | 0.01 |
| Power Rating (W) | 0.03 |
| Frequency (MHz/GHz) | N/A |
| Communication Protocol | Digital |
| Interface Type | 3-pin header |
| Number of Pins | 3 |
| Special Features | High-sensitivity heartbeat detection |
| Compatible Boards | Arduino Uno, Mega, Nano |
| Compatible Voltage Range | 3.3 to 5 |
| Use Case | Heartbeat monitoring |
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