How do you make a digital counter circuit which counts to 10 minutes and 15 minutes, it will give a signs buzzer?
I have a idea I don't know if it's works or not but I will test it on my own, use 1mF capacitor and 600k ohm resistor to charge capacitor technically it will take 10 minutes to charge capacitor and connect a not circuit into capacitor's output. So when capacitor charged not circuit will output high signal and connect that signal into MOSFET's gate and use MOSFET for opening flip flop circuit. So basically capacitor trigger flip flop circuit and flip flop circuit trigger buzzer.

I used this circuit for 10-60 second but I never tried for 10 minutes or longer. If you think you can use this circuit I can add schematics