Problem statement: The robot is to manoeuver by turning whenever it comes in contact with an obstacle. A sensor is placed on the front of the robot gives an output $x=1,$ when it's in contact with an obstacle. The robot has two control lines $z1=1$ which turn the robot to the left, and $z2=1$ which turn the robot to the right. When it encounters an obstacle, the robot should turn right until no obstacle is detected. The next time an obstacle is detected, the robot should turn left until the obstacle is cleared, and so on$.$

The objective is to design the robot controller. The control algorithm is:

Start;

IF obstacle detected

Solve the Question in the photo and this please :

Q$4-$implement the corresponding circuit using two D flip flop

Q$5-$give the dataflow dexcription of a D flip flop