HARVEST – ESCAPING THE WHEAT FIELD

Harvest

"B" version

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

3 foxes

Harvest

Ranger

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.

Wheat field

Harvester

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.