Hall-Θ
Release status: working
| Description | Hall effect endstop sensor
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| License | GPL v2
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| Author | |
| Contributors | |
| Based-on | [[]]
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Discription
This page is under development
The Hall-Θ is a 32mm long Hall Effect Sensor PCB that reacts to magnetic forces. It is powered by 5V DC, and has dual output (analog and digital).
When the magnetic field gets stronger, the output of the sensor will go to either Vcc or GND (south or north pole) in a linear way. With a magnet of 4mm in diameter and 2mm thick(4x2), the reaction starts at approx. 6mm and reaches Vcc at approx 1mm distance to the sensor.
Analog output
The analog output comes straight from the sensor and is (when no magnetic force is applied) 2,5V. When the south pole of a magnet approaches the sensor, the voltage will go up to Vcc. When the north pole of a magnet approaches the sensor, the voltage will go down to GND. If the Hall-Θ is used as an endstop device, 1 unit can be used for min and max endstop. This can be done by applying a north pole to one side, and a south pole to the other.
Digital output
Digital output only works with south pole magnetics. When the output voltage becomes greater than the Vref, the Digital output will go from 5V to GND. Vref is regulated by a potentiometer.
