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HALL ENDSTOP OMNIDIRECTIONAL ONLY TWO COMPONENTS.

After looking at the current hall enstop options, I chose to make my own. I used the Honeywell SS451A (DigiKey part number 480-3587-ND). Advantages:

    1) Omnidirectional so you don't need to know magnet or sensor orientation.
    2) Its a switch; we have no need for ratiometric or linear data, we only need position.
    3) It can source 20ma - more than enough for most LED's.
    4) Through-hole package easy to work with (instead of SMD version).
    5)