Starter Kits,Controller Board, Sensor Modules Factory
DIY Educational programmable Robot Projects manufacturer
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| Place of Origin: | Guangdong China (Mainland) |
| Brand Name: | Oky Newstar |
| Model Number: | oky3434 |
| Minimum Order Quantity: | 10 Piece/Pieces |
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| Price: | USD0.8-1.00/piece |
| Packaging Details: | Different anti-static package at optional: 1. Full or partial package according as your requirement. 2. Retailing Box package design according to your requirement ( Order > 2000PCS ) |
| Delivery Time: | 3-5 workdays after payment |
| Payment Terms: | L/C,D/A,D/P,T/T,Western Union,MoneyGram |
| Supply Ability: | 1000 Piece/Pieces per Day |
| Weight:: | 4g | Material: | PCB |
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| Quality: | Top | Color: | Black |
| High Light: | shields for arduino,arduino sensors kit |
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5V Heartbeat Sensor Senser Detector Module By Finger
Descriptions:
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.
We chose a very high resistance resistor R1, because most of the light through the finger is absorbed,it is desirable phototransistor 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.
For home lighting that is particularly important because the lights at home mostly based 50HZ or 60HZ fluctuate,
so faint heartbeat will add considerable noise.
| Features: | 1. This project uses bright infrared (IR) LED and a phototransistor to detect the pulse of the finger, a red LED flashes with each pulse. |
| 2. 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. | |
| 3. We chose a very high resistance resistor R1, because most of the light through the finger is absorbed,it is desirable phototransistor sensitive enough.Resistance can be selected by experiment to get the best results. | |
| 4. The most important is to keep the shield stray light into the phototransistor. For home lighting that is particularly important because the lights at home mostly based 50HZ or 60HZ fluctuate, so faint heartbeat will add considerable noise. |
| Test Code for Arduino: | int ledPin=13 |
| int sensorPin=0 | |
| double alpha=0.75 | |
| int period=20 | |
| double change=0.0 |
Competitive Advantage:
1. Convenient & Friendly Customer Service
2. Low Prices Direct From Factory Suppliers
3. Fast Delivery Around the World.
4. High Quality With Global Standards.
5. 1 Year Factory Warranty
6. Safe Shipping Way and Payment
Photos:
Contact Person: Ms. Erica Teng
Tel: +8613410424757
