Have you ever seen or heard about Dummy
Alarm? Now we are explaining you about Dummy Alarm. It is almost similar
to an alarm, where as it flashes high power red LEDs for every 5
seconds.
Circuit Components:
555 Timer IC.
Resistors R1, R2, R3.
Capacitor C1.
High power Red LED.
Battery.
ON/OFF switch
As we mentioned earlier that the LEDs flash for every 5 seconds, we can use it in timing applications.
We can also use it in cars for security purpose. Whenever any theft is detected in the cars, it starts flashing for every 5 seconds.
The 7555 timer IC has 8 pins. First pin is connected to ground. Pin 2 and Pin 6 are shorted and connected to the positive terminal of the capacitor. Negative terminal is connected to the ground. A resistor of 10k is connected to the positive terminal of the capacitor.
Are you interested to get detailed information about this circuit design, working and other information? Then read the post – Dummy Alarm using 555 Timer.
Project Description
The main principle of the circuit is to flash an LED for every 5 seconds. The circuit consists of 7555 timer IC as main component.Circuit Diagram of Dummy Alarm using 555 Timer:
Figure 1 Dummy Alarm Circuit Diagram
555 Timer IC.
Resistors R1, R2, R3.
Capacitor C1.
High power Red LED.
Battery.
ON/OFF switch
As we mentioned earlier that the LEDs flash for every 5 seconds, we can use it in timing applications.
We can also use it in cars for security purpose. Whenever any theft is detected in the cars, it starts flashing for every 5 seconds.
The 7555 timer IC has 8 pins. First pin is connected to ground. Pin 2 and Pin 6 are shorted and connected to the positive terminal of the capacitor. Negative terminal is connected to the ground. A resistor of 10k is connected to the positive terminal of the capacitor.
Are you interested to get detailed information about this circuit design, working and other information? Then read the post – Dummy Alarm using 555 Timer.
