Cyton 16 Channel - Power supply

Hey, I am trying to collect EEG data with my Cyton + Daisy 16 channel board.
Unfortunately after collecting the data for about a minute or two, I get no signal in the eeg channels
Replacing the batteries fixes the issue but its quite inconvenient. Is it safe to hook a power supply directly to the battery pack?


  • wjcroftwjcroft Mount Shasta, CA

    Rupan, hi.

    You have two options for batteries, the AA cell holder (works with alkaline or rechargeable cells), or lithium polymer cells, which are available in a wide range of capacities.

    Power supplies directly connected to a mains outlet are NOT recommended for two reasons:

    • potential safety issues if the (typically cheap Chinese) power supply shorts the DC outputs to the mains inputs, connecting high voltage to your scalp.
    • the mains supplies or even usb 5V power bricks, use switching mode power supplies, which have much more 'noise' than batteries. This noise can distort the microvolt sensitive EEG accuracy.


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