Traffic light maintenace system with SMS

Now, i would like 2 show another basic concept on how to send sms.Circuit involved:

(1) PIC 16f with optoisolator for protection
(2) GSM modem
(3) Handphone w
(4) 2 unit of simcard
(5) Traffic Light model
(6) Running light circuit

for review: http://www.youtube.com/watch?v=in1bwK5S-9o

u can also check up on how to send sms and turn on any load such as fan, motor pump and so on. u can check the video on : www.youtube.com/watch?v=7Lqj7RzcW-k


Bye.