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KY-024 Linear Magnetic Hall sensor In Pakistan | microsolution.com.pk
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KY-024 Linear Magnetic Hall sensor In Pakistan | microsolution.com.pk
Chipset: A3141 | OP-amplifier: LM393
A magnetic field is detected by the sensor and will be printed as an analog voltage value. You can control the sensitivity of the sensor with the potentiometer.
Digital out: If a magnetic field is detected by the sensor, a signal will be printed here
Analog out: Direct measurement of the sensor unit
LED1: Shows that the sensor is supplied with voltage
LED2: Shows that the sensor detects a magnetic field
Pinout
Functionality of the sensor
The sensor has 3 main components on its circuit board. First, the sensor unit at the front of the module which measures the area physically and sends an analog signal to the second unit, the amplifier. The amplifier amplifies the signal, according to the resistant value of the potentiometer, and sends the signal to the analog output of the module.
The third component is a comparator which switches the digital out and the LED if the signal falls under a specific value.
You can control the sensitivity by adjusting the potentiometer.
Key Specifications
- Sensor IC: 49E linear Hall-effect sensor
- Comparator IC: LM393 dual differential comparator
- Operating Voltage: 2.7V to 6.5V DC (typically 5V)
- Outputs: Analog (AO) for proportional field strength and Digital (DO) for threshold switching
- Adjustments: Onboard 100k potentiometer to set the digital threshold sensitivity
Pinout Configuration
- A0 (Analog Output): Outputs a continuous voltage proportional to the magnetic field intensity. With no magnetic field, it sits at roughly half the supply voltage (\(V_{CC} / 2\)).
- G (GND): Ground pin.
- VCC (+): Power supply (3.3V to 5V).
- D0 (Digital Output): High/Low switch output that triggers when the field crosses the potentiometer's threshold.
