Tuesday 13 October 2015
Components required: PCB, 9v Battery, Jumper Wires, 555 Timer IC, Capacitor 1μF, Resistor
(1k Ohm and 470k Ohm, LED, etc.
Circuit Diagram : Schematics of LED Flasher with the 555 timer IC
Description:
1.Place the 555 Timer IC in the middle of the PCB.
2.connect Pin 1 to ground
3.Connect Pin 4 with Pin 8 and then Connect Pin 8
to VCC (+ve of battery).
4.Connect Pin 6 with Pin 2 and then connect pin 2
with ground via capacitor.
5.470k Ohm
(R1) resistor connect between Pin 6 and Pin 7
6.connect Pin 7 to VCC via Resister (R2) 1 k Ohms
7.Connect one end of the second 1k Ohm (R3)
resistor with Pin 3 and second end of resister connect with positive terminal
of LED.
8.The negative leg of LED connects with the GND.
9.Connect the 9v battery
Note:Other
devices, such as a buzzer or a speaker, can be used in place of the LED for
specific applications.
Different Circuit Diagrams:
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