On this both week, searching on the real data and get to focus on few circuit and interesting video such as here :

the circuit simple :

1st cirucit 

Actual circuit should be
This is first circuit I get from DIY website,  and attachment of video:




This is the result their get.

Awesome result there just using simple circuit on it.

Construction in progress and found new in the circuit there almost right on it.

Amplifier with bandpass filter
Here it use amplifier and bandpass filter. The calculation on bandpass filter been done to search the value of

resistor and capacitor it need on the circuit. Because of the range to get ecg between 0.05 - 150 hz, so 

calculation on bandpass filter show below :

calculation on bandpass



I try to combine and compare both circuit so that when I try it will be more suitable for this project.






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