Photoplethysmography
Intro: Photoplethysmography
Build a heart beat monitor using Arduino and Processing.
Components:
1x IR LED
1x Photodiode/Phototransistor
1x Trimpot
1x 22uF cap
1x 10uF cap
1x 4.7uF cap
1x 220nF cap
1x LM324
2x 100k resistor
2x 2.2k resistor
1x 1.8k resistor
1x 1.8M resistor
1x 100w resistor
1x 47w resistor
STEP 1: The Sensor
STEP 2: Schematic
Arduino 5v to VCC.
Arduino GND to GND.
Arduino A0 to Out.
4 Comments
jalil.mochlas 9 years ago
can we discuss about this, email me jalilmochlas@gmail.com
please help mee
Best Regards
Jalil Mochlas
Indonesia
russ_hensel 9 years ago
One thin that is especially good is that you make no electrical connection to you victim that is patient. So many experiments like this miss that point. If you do make a connection power with a battery. Voting for this.
tomatoskins 9 years ago
This is such a cool idea! How are you viewing the cardiogram?
dan95 9 years ago
I am using a software called Processing, which is a very friendly java based programming language, the code to do this is in step 3. It is commented for better comprehension.