HARVEST – ESCAPING THE WHEAT FIELD

Harvest

Programming level 1

Building the scene

P1

How to build

Building the scene "A" version

  • Building landscape, figures (foxes, harvesters, rangers, etc.)

Building the scene "B" version

  • Foxes on a robot with 2 DC motors, starts automatically when switched on

P1

Building the scene "A" version

Building the scene "B" version

P1

P1

Programming level 2

Sly foxes

P2

How to build

Sly foxes

  • 3 small foxes on 1 robot (2 DC motors, 2 Touch Sensors)
  • Ranger on 1 robot (2 DC motors, 1 Touch Sensor, 1 red LED)
  • Both robot programs are triggered by Touch sensor
  • The ranger robot moves back and forth
  • One of the children activates the fox robot by pressing the Touch Sensor, timing it so it does not to meet the ranger
  • The ranger stops and shoots after 5 back-and-forths – red LED lights up

P2

Sly foxes

P2

P2

Programming level 3

Building and coordinating moving figures

P3

How to build

Building and coordinating moving figures

  • The harvester walks around the wheat field, stopping at intervals to swing his scythe. The wind blows through the wheat field and birds flutter around the tree next to it.
  • Harvester: Touch Sensor starts the program.
  • It uses an IR Photoreflector to track a line.
  • Stops at predetermined intervals and uses servo motor to perform swinging motion.
  • Wheat field: Touch Sensor triggers the program.
  • Gears driven by a DC motor move the wheat stalks and the tree with the birds.

P3

Building and coordinating moving figures

P3

P3

Programming level 4

Escape of the foxes through the field

P4

How to build

Escape of the foxes through the field

  • A combination of P2 and P3
  • The harvester is equipped with 2 Touch Sensors, he stops at random intervals, this is when the foxes must be switched on
  • The harvester stops when the Touch Sensor is pressed, turns towards the foxes and starts shouting, waving his hands. The direction of the turn is determined by which of the 2 Touch Sensors is pressed.

P4

Escape of the foxes through the field

P4

P4