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magnet

Using Hall effect devices to detect distance from magnet.

Hi Folks.
I have been searching for this on Google but have not yet found a decent example.

I have a small neo magnet that is on a flexible surface - lets say under a  bandaid on an eyebrow.

I have a hall effect sensor mounted 10 to 15mm above the magnet on the forehead. It is actually mounted in a mask sitting on the forehead so that the skin movement does not effect it. So it will be a fixed reference point

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