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After the BI HALL Click Board™, a new Click Board™ also based on the Hall effect: the UNI HALL Click Board™ from MikroE. It offers the user an easy way to introduce a unipolar Hall switch to the design. The board is equipped with the Melexis US5881 unipolar Hall-effect sensor that is sensitive to north pole magnetic fields. It outputs a LOW logic level when exposed to a north-pole magnetic field, whereas a HIGH logic level when the north pole is taken away or a south pole is introduced. UNI HALL Click Board™ also features a 74LVC1T45 single-bit, dual supply translating transceiver. The board uses the MikroBUS INT line for communication with the target board microcontroller. It is designed to use either a 3.3V or 5V power supply, which is selectable through a solder jumper.
The UNI HALL Click Board™ can be utilized in countless ways by placing magnets in strategic spots. It is an ideal option to make durable push buttons or regulate RPM by mounting it on a wheel or detecting liquid level by attaching it to a float. In its simplest application, UNI HALL Click Board™ can be engaged as part of a durable contactless proximity switch.
FAQs
UNI Hall Click Board
Frequently Asked Questions
Product Description
Product Description
IC/Module: Melexis US5881 Unipolar Hall-Effect Switch
A unipolar Hall-effect switch, the CMOS-technology based Melexis US5881 integrates a voltage regulator, Hall sensor with dynamic offset cancellation system, Schmitt trigger and an open-drain output driver, all in a single package. It is a good choice for use in automotive and solid state switch applications.
Sensitive to North Pole Magnetic Field
Unlike BI HALL Click Board™, the unipolar Hall switch aboard UNI HALL Click Board™ only reacts to north pole magnetic fields, outputting a LOW logic level. In cases where the magnetic field is not strong enough, or of wrong polarity, the Click Board™ outputs a HIGH logic level through the mikroBUS INT line.
Communication Interface
The UNI HALL Click Board™ uses the mikroBUS INT line to communicate with your target board. It uses either a 3.3V or a 5V power supply, which is selectable via a solder jumper. The selection determines logic level voltage.
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