Hope I didn't mess up, I don't have it anywhere near or connected to the controller board, just on the bread board. The green lead is goiung to the positive side of my multimeter and nothing else. The negative side of the multimeter is going to the ground. Is this setup stopping it from working correctly somehow?The part is definitely out of spec, unless your controller board is loading the output. Have you tested it with the green wire disconnected?
Do you have the ground of the Hall effect device connected to the ground of the controller board (you should!)?
Thanks again for the help! Almost bedtime to sleep on it some like you suggested...
Mark [mkenney]