Re: If you're going to worry about their tech selection...
Yes, except that the 555 is realy not a good choice for longer duration delays. Too much drift on the R or the C.
You could sell it as an auto-adjusting delay (and auto-adjust the billed development and build cost) to the company's beancounters.
Seriously, 15 minutes is no problem with decent quality components and the 7555 (CMOS version)
Biting the hand that feeds IT
