Pause a robot

i trying find way pause robot using pause button, , able return robot doing before, using either same button or one.
is there program write or copy , paste robot program in arduino board me this.
any appreciated.

this might work, stuck loop() @ appropriate spot.

code: [select]

while(digitalread(pausebutton))   //true if pausebutton high
{
 // nothing
}

but means button needs kept pressed, toggle switch better. flick un-pause.

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