Traffic light with GSM Density checker using PIC16F877A is a very interesting project for hardware developers, microcontroller programmers, embedded system designers, final year students in Engineering and technology hobbyist who love to accomplish projects by themselves. It is very simple and easy to understand for beginners in microcontroller programming. The instructor is a very high experienced hardware developer who have been working as a freelancer and have also worked with some reputable companies in the past. He has also been teaching computer programming since 2014 and have mastered the art of conveying information for better understanding which have made many of his student excel with less stress in computer programming and circuit designs. Students are advised to follow this course step by step so that they understand it very well because every lecture is filled with vital information which should not be missed.