hi,
I asked some questions about the ECGs suffering from some humming noise. Persons here told me two solutions:
1. "Put the unit input a grounded box will reduce the external noise". (i don't understand the meaning of this...)
2. "Redesign your right led driver circuit". (How I can redesign it since its already embedded in the hardware)
Please if anyone can clarify it for me. I have already tried of implementing the both FIR LPFand FIR wider notch @50 Hz bandstop filter, but results are not good.
Thanks.
