Before it, the circuit of it been test using Arduino and test on wrist because it test on female hostel, so during

testing using coding Arduino and processing, it display peak-to-peak buat to small. When be identify , it have

small gain on amplifier that didnot get 1000, because it can go only 100.

Circuit testing :

Circuit testing pare with Arduino

Result

This show peak-to-peak very small need to be use varible to adjust


Lest inching the cirucit combination on LM 358 with bandpass amplifier to done it.

Inching process been done  by construct the at diptrace minimize the space of it so it look small then print.

Inching process
And drill then solder all the component on it  :)...almost done just on graphic LCD now..

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