Linear hall effect sensor - A1321

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  • Manufacturer: Allegro
  • Voltage: 4.5-5
  • Communication: Analog

The A1321 is a very simple linear hall effect sensor. When no magnetic field is near, the sensor outputs half of the supply voltage. When the south pole of a magnetic field approaches the sensor, the voltage output falls linearly with distance, eventually to 0. When a north pole field approaches the sensor, the voltage output climbs towards the supply voltage (4.5-5v).

Hooking it up

Using the A1321 is very simple and only requires power to operate. The output of the sensor can be connected to an analog input on any microcontroller to read the value.

A1321 hookup.png


A1321LUA-T Datasheet

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This page is a Component on bildr. Components are pages about specific parts, and include connection details and code when available.

NOTE: All information contained within this article is pure opinion. Although this article is intended to help people, it may contain faulty or misleading information. This article is not to be considered professional opinion or advice, and is in no way a replacement for reading all safety/instructional documentation. Always remember to protect yourself when handling/using hazardous materials, as well as test new techniques before using them on projects/work intended to be handed in or used.

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