This circuit does not turn on for XX seconds after power is applied. Adjustable from 1 second to 2 minutes.The delay can be adjusted by changing the resistance between pin 6 and ground.
Either you can use a 1M Variable Resistor or use different resistances to get different delays in turning on the circuit. Just Connect a LED to pin 3 of 555 along with a resistor to delay the start of LED.
100k- 10s
220k- 25s
250k- 27s
500k- 56s
1M- 2min
Either you can use a 1M Variable Resistor or use different resistances to get different delays in turning on the circuit. Just Connect a LED to pin 3 of 555 along with a resistor to delay the start of LED.
Resistances Between pin 6 and Ground and their Respective Delays :
1K- 1s100k- 10s
220k- 25s
250k- 27s
500k- 56s
1M- 2min
COMPONENTS USED :
1.one 555 IC.
2.one 100uF Electrolytic Capacitor.
3.one 1M Variable resistor or different Resistances (1K,100K,250K etc)
4.one LED.
5.one 470ohm/220ohm resistance.
6.one 9-12V Power Supply.
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