Toggle LED on off using 555

Posted by Rohan on Friday, July 25, 2014 with No comments
This circuit will toggle the output each time the switch is pressed. The action cannot be repeated until the 10u charges or discharges via the 100k. In this Project we will connect an LED to the pin 3 of 555,when the button will be pressed the LED will toggle on off.

COMPONENTS REQUIRED :

1.one 100k Resistor
2.two 10k Resistor
3.one 555 IC
4.one 10uF Electrolytic capacitor
5.one push button
6.one 470ohm/220ohm resistor
7.one LED
8.one 9-12V supply

STEPS  :

1.Place 555 IC on BreadBoard
2.Connect pin 2 to pin 6.
3.Connect pin 4 to pin 8.
4.Connect pin 1 to ground.
5.Connect pin 8 to VCC.
6.connect a 10K resistor between pin 2 and ground.
7.Connect another 10k resistor between pin 6 and VCC.
8.Connect 100K resistor between pin 3 and longer leg of Capacitor.
9.Connect shorter leg of Capacitor to ground.
10.Connect an LED to pin 3 with a 470ohm/220ohm resistor in series.
11.Connect the push button between pin 6 and positive terminal of Capacitor.
12.Connect power supply




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