Linear Hall Magnetic Sensor KY-024

Description

Typically KY-024 Linear Magnetic Hall Sensor is used to calculate (and therefore adjust or stabilize) the speed of a mechanism in rotation or as a proximity switch. There are also sensors switch type, which are limited to only intervene on reaching a threshold of intensity (see KY003) and therefore provide only one output ON / OFF state. In the case of KY024 point intensity 0 should correspond approximately to + 2.5V with an excursion to the 0V and + 5V in step 1024 if fed precisely to 5V. Despite this sensor has a linear response, however, it is not suitable to be used as a measurement of intensity of a magnetic field due to low precision.

The value of zeroLevel corresponds to 0 and goes calibration proceeds launching the sketch with the sensor away from magnets and making sure that the output value indicates precisely 0. In my case I used a value of 537 but may vary slightly from sensor to sensor.

• Can detect the intensity of the sound environment

• Sensitivity adjustable (shown in blue digital potentiometer control)

• With the retaining bolt hole, convenient installation

• Output form digital switch output (0 and 1 high and low level)

• Signal output indication

• Single channel signal output

• The output effective signal is low level

• When there is sound,outputs low level and the signal light

• Can be used for Acoustic control light , give sound and light alarm working with Photosensitive sensor ,and sound control,sound detect

• Circuit board output switch quantity

• Working voltage:DC 3.3-5V

• Small board PCB size: 3.4 x 1.6 cm

Connectivity

• Pin (-) –> GND, connect to GND of the Arduino
• Pin (middle pin) +5 v  –> connect to Arduino +5
• Pin AO signal –> connect to Arduino pin A0
• DO –> Do not connect in our example