› Forums › Focus Products › EEG Developer Kit › Electrodes output reaches up to 5V when they're held in the air. › Reply To: Electrodes output reaches up to 5V when they're held in the air.
I would like to further explain my question.
Is this the common mode voltage? and is it normal that it would be this high?
Note that my initial problem is that I cannot seem to detect the eeg signal.
NOTE: I’m only using the pair of electrodes that I’m driving into a differential analog input of an ADS1298 which is then connected to a raspberrypi. Note that my code includes a 8-12Hz filter which should eliminate the 50 Hz component but I’m still not getting any eeg signal.
Do I have to use the bias output to obtain a signal?
Thanks in advance.