The tilt sensor is a component (switch) that can detect the orientation of an object (upright or not). It is equivalent to a pushbutton activated through its physical orientation. It contains a metallic ball inside that will commute the two pins of the device from CLOSED to OPEN if the sensor exceeds a certain angle and vice versa. Only when the tilt sensor is in its upright position, are metallic balls inside the tilt sensor bridge the two contacts, completing the circuit. When the sensor is tilted beyond the sensitivity range, the contacts move away and thus open the circuit.

The SW-520 sensor consists of two metal balls that switch as a trigger. When the switch is positioned horizontally, and when the sensor angle is less than 10°, the circuit is open (off state) and more than 10°, it is closed (on stated). But when the switch is positioned vertically, the circuit is open when the sensor angle is less than 45°, and close when the angle is more than 45°. To see exactly how this sensor works, read the datasheet. The SW-520D sensor is also dustproof and waterproof.

It can be used in camera rotation detection, cars and motors, household appliances, toys, etc.

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