Hall sensors are among the most widely used sensor
types today. Now available on click boards.
Bi Hall click is a bipolar Hall effect switch,
meaning it's sensitive to both magnetic poles:
It outputs a HIGH logic level when exposed to a
south pole magnetic field, and a LOW logic
level when exposed to a north pole magnetic
field. When you remove it from a magnetic field, the
logic level stays in its previous state.
After Hall current click, this is our second click
board utilizing the Hall effect, with two more on the
way. So it's worth recalling the basics:
Electrons traveling through a conductor are diverted
from their straight path when exposed to a
perpendicular magnetic field. A voltage develops across
the conductor. A small voltage, measured in miliVotls.
Still, Edwin Hall managed to detect it in his lab in
Baltimore in 1879, and the effect is named after him.
Hall sensors have several distinct advantages: their
sensitivity is not impeded by dirt or dust. Since
the measurement is contactless, they're also not
subject to mechanical wear and tear.
Hall sensors are used in cars, consumer electronics,
industrial machines—anywhere where there is a moving
magnet or a magnetic field.
The bipolar sensor is especially suited for
applications where alternating north and south poles
are used to ensure switching. For example, to measure
rotary speed by utilizing a ring magnet.
Details on the product page, Libstock examples
ready.
Yours sincerely,
MikroElektronika
