Robot maze

Robot maze

1. Algorithm constructs

   • Selection and condition
     • The robot checks its surroundings and follows the path
   • Assignment
     • Set point speed = 25%
   • Sequence
     • Instructions are followed in an order
   • Iteration
     • Forever loop to keep the instructions going

2. Code constructs

   • If statement
     • If touch sensor is pressed then go 75% speed
   • For Loop
     • Repeat an instruction as set number of time
   • Other code constructs
     • Forever
     • Repeat

3. Spike prime robot

   • Motors
     • Motor C
       • Turn off Motor C to turn left
     • Motor D
       • Turn off Motor D to turn right
   • Other sensors
     • Colour sensor
     • Distance sensor
     • Touch Sensor

4. Challenge

   • Rockfall challenge (push the box)
     • push the rock out of the way and keep on the maze track and continue to the end
   • Poison ivy challenge (around the box)
     • Reject, doing rockfall challenge

5. Task requirements

   • Self determined criteria
     • robot displays a smiley face when it has finished the maze and stop robot actions
       • Use a display module to show the smiley face at the completion of the maze
       • Use colour sensor to detect when the robot stops all motors
   • Prescribed criteria
     • Follow a safe path to the exit
       • Use colour sensor to detect the black lines in the maze
         • Move straight and follow the black line
         • Move the opposite direction if it detects white
       • Drive slowly (25%) to improve accuracy of line following
     • Use sensor to identify dangers or obstacles (distance sensors)
       • Distance sensor is used to detect when to accelerate the robot to increase speed and force
     • Use sensors to avoid or manoeuvre any dangers or obstacles
       • Touch sensor is used to detect how long to push the box for to make sure the rock gets out of the way
     • Complete a room-specific challenge
       • Use the colour sensor to detect when the red appears at the end of the maze to stop movement of the robot
       • use colour sensor to follow the black line to complete the maze