My problem here are the magnets. I cannot find small magnets :(
Also if i will do this i will not be able to calculate Dwell angle. I
think i will try both approaches to see which one is more suitable.
Thanks for the ideeas :)

tec>  Well, this is exactly what you want, no conversion. However, if it makes
tec> you feel better. Glue two tiny magnets (or 4) and divide appropriately.
tec> These Hall sensors are pretty reliable when setup properly.

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