HALL EFFECT
The Linear magnetic Hall sensor reacts in the presence of a magnetic field. It has a potentiometer to adjust the sensitivity of the sensor and it provides both analog and digital outputs. The digital output acts as a switch that will turn on/off when a magnet is near. On the other hand, the analog output can measure the polarity and relative strength of the magnetic field.
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General Description:
The Linear magnetic Hall sensor reacts in the presence of a magnetic field. It has a potentiometer to adjust the sensitivity of the sensor and it provides both analog and digital outputs. The digital output acts as a switch that will turn on/off when a magnet is near. On the other hand, the analog output can measure the polarity and relative strength of the magnetic field.
Working Principle:
Hall Effect sensor module is used to detect the proximity of a magnet. It is much smaller in size, when the magnetic field rises above a threshold level, the open collector output transistor switches on, which pulls the logic-compatible output low and illuminates the onboard LED indicator.
Specifications:
1. Voltage comparator LM393.
2. Adjustable sensitivity.
3. Output from digital switch output (0 and 1).
4. Signal output indication.
5. Single channel signal output.
6. The output effective signal is low level.
7. When there is sound, outputs low level and the signal light.
Requirements
| S. No. | Component Name | Values |
|---|---|---|
| 1 | IC LM393(Op-Amp) | |
| 2 | Resistors | 150R,1K,10K,100K |
| 3 | Potentiometer | 100K |
| 4 | LED’S | |
| 5 | 3-terminal Hall Effect Sensor | |
| 6 | Male Connectors | 4 |
Pin configuration:
| S. No. | Pins | Pin Description |
|---|---|---|
| 1 | D0 | Digital output pin |
| 2 | VCC(+) | Input Voltage 3.3-5v |
| 3 | GND | Common Ground |
| 4 | A0 | Analog output |
Applications:
1. Motor speed measurement.
2. Object position detection.
3. Smart car.
4. Electronic bricks.
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