HOW TO DETECT THE SYSTOLIC AND DYSTOLIC PRESSURE PULSES USING PROGRAMMING IN ARDUINO UNO
I think the only thing that could make this post more annoying would be Comic Sans.
They come as cheap as under $10, so either use it or hack it. You won't make one out of just an Arduino and 'programming'
What's "real time" in this concept? If I recall correctly, blood pressure can't be measured with a continuous sensor, like air pressure. External pressure is put on a veine, then when the pressure is lowered, at some point blood starts to flow in pulses. At some lower point blood starts to flow constantly (still pulsing though). Continuous measuring means one has to continuously repeat the cycle. Add pressure until flow stops in vein - lower pressure - record the systolic pressure - record the diastolic pressure - start all over.
I believe flow is detected with a microphone. It causes a noise sound.
Because of your post I remember I saw a blood pressure meter in a 2nd hand shop. If it's cheap, I'll buy it and disassemble it. It might contain just the kind of pressure sensor I need.
for a schoolproject i builded an heartrate sensor:
I forgot the name of the main component, but an IR led sends light to your finger. Based on the bloodpressure at the given moment, light returns (kind of like an octocoupler with space between the led & sensor).
By enforcening the signal with opamps you can get an accurate signal. Wich made a led blink on the rate of your heart. connecting the signal of the led to an arduino would make a good sensor.
That's a blood oxygenation sensor that detects the colour change in haemoglobin - the ratio of two different
colours is used (in the red / IR I think). Doesn't do pressure.
Pulse oximeter*
if you are allowed to use an off the shelf blood pressure monitors and hack it. you can check my tutorial here.
