This month I worked on white line sensors. This sensor is important to make the micro mouse follow the white line and avoid the black line. We worked on more than one design. In addition, we decided to first make four white line sensors on two pieces of the board, each board containing two white line sensors . After it was installed and the code was created, we found that we had to add two more white line sensors in order to sense the line better, and we did it with a small design because the area of the micromouse is small. In the end, the micromouse worked as expected.