Year 9 - Item 1

Year 9 - Item 1

1. Task requirements

   • Prescribed criteria
     • Follow a safe path to the exit
       • Robot follows the black line
       • Bot turns left at green squares
     • Use sensor to identify any dangers or obstacles
       • Use pressure sensor to detect obstacle or wall
       • Use distance sensor to detect the obstacle or wall
     • Use sensor(s) to avoid or manoeuvre any dangers or obstacles
       • Use movement sensors to navigate around the obstacle
       • The distance sensor to check if obstacle has been cleared
     • Complete a room specific challenge
       • Complete Poison Ivy challenge
   • Self prescribed criteria
     • Robot sleeps when it reaches exit
       • Light display on the back displays Zs
       • Light on distance sensors show half circles like closed eyes

2. Planned response

   • Poison ivy challenge
     • Navigate around the obstacle
       • The robot will follow use IF statements to the black lines using the movement sensors, guided by the colour sensors
       • If colour sensor detects green, the bot will turn left
       • The robot will detect obstacles with the distance sensor and navigate around it with movement sensors
   • Rockfall challenge
     • Push the obstacle out of the pathway

3. Spike prime robot

   • Motors
     • Wheels that allow the bot to move and turn
   • Distance sensor
     • Detects distance from object/obstacle in front of the bot
   • Colour sensor
     • Detects colour changes
   • Pressure sensor
     • Detects if the switch is pressed or released
   • Light display
     • LEDs that light up on the back of robot

4. Algorithm constructs

   • Iteration
     • Is the use of loops to simplify code
       • WHILE program is running MOVE forward
   • Selection & condition
     • Basically if then statements; if a condition is true, select this
       • IF colour sensor IS EQUAL TO green THEN TURN left -50
   • Assignment
     • Attaches values or names to variables
       • START SET movement motors SET movement speed to 25% END
   • Sequence
     • Is the order in which the code runs; usually top to bottom
       • START WHILE program is running MOVE forward END

5. Code constructs

   • IF statements
     • Is the code that allows the robot to decide what it should do
   • FOR loops
     • Is what tells the code to repeat and for how long
   • SET variables
     • Assigns a value or name to a variable