Thanks for the reply. But i want to come out straight concerning the actual project i want to do. I want do what i call a "digital lecture and venue schedule reminder" for example, when a lecturer has a lecture by 9am on monday, the course code e.g (ECE 521) is displayed as well as the venue e.g(lecture theatre). Also, the project is integrated together with a digital alarm clock. It should include input button that can input data such as date, time, venues, course codes for the courses.the input buttons should be a cross navigation i.e you navigate vertically and horizontally to input whatever data you want to input. So thats the project i wanna work on. But most importantly now, is that i need the circuit diagram before tuesday the 20th of april, for my proposal to be accepted. Can you help?