Hi jingxizhang..its feeling really great seeing ur project. But i wants to know from your side that does this ecg monitor gives the right and approved ECG signal and heart rates ?? because i wants to use this thing and enhance it as a part of my software work to medical equipment and software developing to my company. and another thing is i wants to have STM 32 and the rest circuit so what to do?? and how to build a complete ecg primer circuit ??? pls let me know..
Thanks in advance....
have a nice time ahead,,,,