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  1. FBminis

    How does a simple, 1-wire, PAS sensor differentiates between CW and CCW rotation?

    This is why I don't understand how can the controller tell if we are pedaling forward or backwards. If someone could test with another magnet they have around by passing through the disc's magnets and note if they repel or attract, that would help solve the mystery. Found some interesting...
  2. FBminis

    How does a simple, 1-wire, PAS sensor differentiates between CW and CCW rotation?

    4-Wire PAS system rely on dual plate HAL sensors like those in PC cooling fans. These differential field sensors have two outputs that emit two square wave signals which are out of phase, as two consecutive magnets with with different pole orientation pass by the sensor. One of these ICs...
  3. FBminis

    How does a simple, 1-wire, PAS sensor differentiates between CW and CCW rotation?

    Please note the attached photos, that's the kind sensor I'm referring too. I've read the info in the following website but still have this doubt: https://ebikes.ca/learn/pedal-assist.html I don't understand how those discs can make a hall sensor (with a Schmitt trigger) generate a square pulse...
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