Pulse Sensor With Arduino




Introduction: Pulse Sensor With Arduino

Source: http://www.theorycircuit.com/pulse-sensor-arduino/

Heart Rate data can be used in many Electronic design and microcontroller projects. But the heart rate data is difficult to read, however the Pulse Sensor Amped help us to read heart rate. The Pulse Sensor Amped is a plug-and-play heart-rate sensor for Arduino. It can be used by students, artists, athletes, makers, and game & mobile developers who want to easily incorporate live heart-rate data into their projects.It essentially combines a simple optical heart rate sensor with amplification and noise cancellation circuitry making it fast and easy to get reliable pulse readings.

Step 1:

Step 2: Pulse Sensor Schematic

Here the APDS-9008 Miniature surface Mount Ambient light photo sensor from Avago technologies plays an important role and it is responsible to detect concentration of Light bounces back through fingertip or earlobe. D1 LED gives light source for this operation. Signal from the ambient light sensor amplified through op Amp and the signal is ready to read by the microcontroller.

Step 3: The Pulse Sensor Kit

The pulse sensor amped kit Available in



Step 4: Pulse Sensor Arduino Hookup

Connect the sensor’s power supply pins to the arduino board supply pin as Red – 5V, Black – GND and Purple – A0 (analog input 0) its over. This Analog input reading can be displayed in serial terminal of Arduino IDE or it can be drawn as pulse by using Processing IDE.

Step 5: Pulse Sensor Arduino & Processing Code

Step 6: Processing IDE Output Screenshot

Source: http://www.theorycircuit.com/pulse-sensor-arduino/

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    5 years ago

    These little pulse sensors are invaluable when it comes to measuring pulse, I love them. Should be noted that they require a layer of protection on the front and back of the circuit since any amount of touch can skew your results. I learned this after many failed attempts.

    I used hot glue on the back circuit and a piece of clear scotch tape on the LED/photodiode side.