Programming requirements: $$ Controlling motors with PWM$.$ Reading from ground sensors and thresholding measurements to distinguish between black border and white floor. $$ A number of approaches can be taken to controlling the robot, including: $$ Setting motor speeds appropriately for all possible sensor patterns $$ Finite state machine $$ PID control Task $$ Use the image file for Challenge $1.$ The robot is started on track, already facing in the right direction. $$ The robot should complete a single circuit of the track. Test criteria $$ The robot will need to be tested in both directions of travel $-$ CW and CCW$.$ It is most important for the robot to successfully navigate the course, but some small credit is also assigned to how fast the robot is travelling and how smoothly it follows the track.