The main aim of this research is designing and
implementing a low cost ECG monitoring system which has
been fulfilled. We found the desired ECG signal and verified
this to a doctor. Our designed system visualizes the ECG signal
and heart rate. In our future work we will add abnormal ECG
detection feature with this system. The cost of this system is
only USD 23.13, which makes this system highly inexpensive
and ideal for under developed and developing countries. The
component used for this system consumes very low power and
is takes maximum current of 65mA. We have tested this
system and found that it is capable of functioning up to 22
hours by using smartphone. During operation only one core of
the smartphone is used, for this in future multichannel feature
can be added to this system. This system is an excellent choice
for doctors and cardiac patients in developing countries like
Bangladesh.