International Journal of Electronics and Computer Science Engineering
The line follower robot is a mobile machine that can detect and follow the line drawn on the floor. Generally, the path is predefined and can be either visible like a black line on a white surface with a high contrasted color. Light Dependent Resistor (LDR) sensors that installed under the robot. This paper presents a real-time detection of mobile phone in restricted area. Mobile transmission detector can sense the presence of an activated mobile phone from distance of one-and-a-half meters.