The battle on the Grund
Programming level 1
Build The Grund with a mechanical catapult
P1
How to build
Grund with a mechanical catapult
- Build The Grund – woodstacks, little figures, buildings, gates, etc.
- Build a mechanical catapult turning on an axle.
- Affix the axle to various points of the launching arm, and see how far the projectile can be launched with each point.
P1
The Grund with a mechanical catapult
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P1
Programming level 2
Build a controlled catapult
P2
How to build
Controlled catapult
- The catapult should be moved by a servo motor
- It launches at the press of a Touch sensor
- A LED should flash while launching
- After launching, the arm should be moved back to the starting position automatically
P2
Controlled catapult
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P2
P2
Programming level 3
Build a load-controlled catapult and a trumpeter
P3
How to build
Load-controlled catapult and a trumpeter
- The catapult should be moved by a servo motor
- It should launch after a projectile is put into its bucket – an IR Photoreflector should detect it
- A LED should flash while launching
- After launching the arm should be moved back to the starting position automatically
- Build a robot car and add a trumpeter on top of it.
- The arm of the trumpeter is moved by a servo motor – it can lift up its hand holding the trumpet
- Moving around, he should blow his trumpet – playing a tune with the Buzzer
- The trumpeter should be started by whistling or clapping that is detected with a Sound sensor
P3
Load-controlled catapult and a trumpeter
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P3
P3
Programming level 4
Playing out the battle
P4
How to build
The battle
- Build all the objects and robots listed in P1-P3
- Build a flagpole with a flag
- The flag-raising mechanism can be built from a servo motor, a gear and a driverail
- The raising starts at the press of a Touch sensor
P4
The battle
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