Hall Effect Sensor Data

I used two magnets and the data the output was no different. I think wvmarle is right, the sensor likely has been reversing because I was most likely holding the magnet the other way around.

Though I'm only in the prototyping phase of the project so if any has other suggestions for achieving that in Arduino that would I'm open to hearing them. Right now the idea is to use a bike with a stationary trainer attached. A magnet would be on the back wheel and when it passes close by the sensor it would track that as a full rotation to determine speed.