After two Hall switches, our final click board for this week is LIN HALL click, which is a linear Hall sensor.

LIN-HALL click

LIN HALL click will give you an output linearly proportional to the density of the magnetic flux it’s exposed too.

Plug LIN HALL click to your nearest mikroBUS™ socket, use the Libstock example provided, then take a fridge magnet and watch as the values go up and down as you move it closer or farther from the onboard MLX90242 linear Hall sensor IC.

A north pole magnet field will increase the output, while a south pole field decreases it.

In applications more practical than fiddling with fridge magnets, linear Hall sensors are used to infer the linear or rotary position of a target object (as long as there is a magnet attached, or something to disturb an existing magnetic field). Examples include measuring the position of throttle valves, or the movements of a joystick.

So now you have three Hall sensors on click boards: BI HALL, UNI HALL, and LIN HALL. Four if you include Hall current click, designed specifically for measuring electric current.

The late Edwin Hall would be pleased.

Yours sincerely,

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