Could anyone help please, I have made a simple device to open and close a roof window, with a 12volt motor and limit switches. I want to operate it by a timer ( so it will open or close at given times.
Could anyone help with a design for this, my knowledge of electronics is basic.

Any help would be gratefully received.

 

Welcome to AAC!
It will help us to help you if you post a schematic of your system.

 

Please forgive my hand drawing and I hope it is clear enough.