shailesh Profile Topics Started Replies Created Engagements Search replies: Forum Replies Created Viewing 3 posts - 1 through 3 (of 3 total) Author Posts December 22, 2014 at 9:49 am in reply to: help to suggest gps module #12444 shaileshParticipant http://www.nex-robotics.com/products/multirotor-platforms/gps-receiver-mt3333-module.html refer it i already use this module with successfull Vehicle Tracking System.. December 13, 2013 at 5:45 am in reply to: Significance of * (star) in this program #10730 shaileshParticipant First of all you need a basic knowledge of C lang…. by the way it is not star but is is called as a POINTER….. void lcd_data(unsigned char *disp) { while(*disp) lcd_disp(*disp++); } explanation.. while(*disp) is conditional statament if Your character is not null ( ‘