hye..can someone help me how to design a circuit in which when we switch on the circuit,it do not immediately start then it will start after 5 sec and then it will stop back after 15-30 seconds after it moves..

 

What do you wanna use ?

A 555 timer or a μC ?

 

use a 555/6 timer circuit like this , alter the resistor values to suit your delays..

 

After what moves? Is the automatic stop to happen 15-20 seconds after something is powered on or after an event occurs (something moving)?

 

Will this do it for you?

Edit: This needs a latch, but if the OP never comes back, or his circuit is nothing like this, I won't spend the time to make one.

 

yurp..we also use a motor..because our project is about a movements

 

if can it will stop after it move a few seconds..but it also can stop for about a few second before it move again..

 

Will this do it for you?

Edit: This needs a latch, but if the OP never comes back, or his circuit is nothing like this, I won't spend the time to make one.

nevermind..ok..i will try to use it..

 

Will this do it for you?

Edit: This needs a latch, but if the OP never comes back, or his circuit is nothing like this, I won't spend the time to make one.

where should i put my motor in this circuit?

 

where should i put my motor in this circuit?

What motor? Does it, by some miracle of luck, use 5 volts and only a few milliamps? If it does, attach it to the line that says, "high = on". If not, add an amplifier to the line marked, "high = on" so the amplifier can drive the motor.

 

if can it will stop after it move a few seconds..but it also can stop for about a few second before it move again..

Did you just say you want to change the circuit now?

 

If it's an industrial type control pick one or two from these types.
http://uk.rs-online.com/mobile/generalDisplay.html?id=info/timer