The applications for the basic circuit include switching on a porch lamp at dusk, briefly sounding a buzzer when someone's shadow falls on the sensor or to switch on a lamp in a cupboard when the door is opened. With the addition of a second circuit board, there is an optional extra stage to this project, called the Differentiator. This changes the response of the trigger. Instead of being sensitive to light level, it becomes sensitive to the rate of change of light level.
this is the list of components that we need
Trigger circuit diagram of the Versatile Optical Trigger
circuit diagram for the differentiator circuit
The sensor will detect any motion and produce an output (Buzzer & L.E.D). Then, buzzer will active when detect any motion through the sensor. Reset button is used to reset the circuit.
note: next step is to find the components at Jalan Pasar
No comments:
Post a Comment