Why the line-follower Sensor located at the lower part of our mBot? 4-5 sentences

The line-follower sensor is positioned at the lower part of the mBot to enable accurate detection of the line on the ground, which is crucial for its navigation. This placement ensures that the sensor can closely monitor the surface and respond in real-time to changes in the line's color or position. By being nearer to the ground, the sensor can effectively read the contrast between the line and the surrounding surface. Additionally, having the sensor lower helps to minimize interference from other objects or obstacles, allowing the mBot to maintain a more stable and effective tracking of the intended path. Overall, this design choice enhances the robot's ability to follow lines smoothly and efficiently.