I’m looking for a small and very simple timer / clock to be used as part of a school science project for my daughter. We simply need a timer that will turn on a flashing bulb (or LED) at the same time every day. The bulb should remain flashing (or on) until someone presses a reset button or switch to turn it off, at which point it’ll remain off until the same time the next day. It should be powered by a small battery source. Any ideas