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Simple slant (tilt) alarm switch circuit (BC109)

2015-01-09 15:59  
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This article describes the Simple slant (tilt) alarm switch circuit (BC109). The principle is very simple, very practical. The circuit components can help you understand better grasp this principle. For example, in this circuit, you can go to find and buy these components: BC109.

 

This is a simple alarm circuit.This work, when the switch S1 (sensor) tilted away from vertical.The alarm stops when the sensor back to the old form.
S1 sensor is a mercury switch.Contact is a normal closed.When the switch is placed in a vertical.Transistor Q1 acts as a switch off,
buzzer immediately.When the sensor back to the original vertical position. Completion of all the circuits can be packed into a small box.Which is used as a tilt meter.

Simple slant (tilt) alarm switch circuit

 


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