Counter counting system

PI I make a counter timing, the tool is planned to be in use at exhibitions, as it works as a detector of how many visitors are coming, so that we do not have to count one by one the visitors who come .. hopefully my PI smoothly. amen my supervisor is a pack of Robi, he helped me in writing and in the manufacture of tools, many of the difficulties in making this PI tool but I am sure I will, hopefully .. well I pray ya.semoga PI tools tHE CALCULATION tIME COUNTER finished on time.