control voltage and time

greetings.

I am a student and I am doing a project with arduino and I have esperiencia, I look at this forum where some help would appreciate.

the project is to control a source of dc 0-5 vdc, I have an arduino one, and the lcd keypad shield with which I need to select the voltage and time to trigger an analog output, I have seen some examples with temperature and time but have compilation error.

Thanks for your attention.

Do you have a RTC?

Hi.

Can you please post a copy of your sketch, using code tags.

So we can see where your sketch errors are.

Do you want to turn the 5Vdc on and off, or control its level?

Tom....... :)