Spring is blooming, and the summer is coming. Soon, the water lillies in the Botanical garden in Bratislava will also start blooming. Their leaves look like hungry PAC-MEN:

The famous computer game PAC-MAN is bringing large profits even after more than 40 years it was released in 1980.

Task for rabbits: Build a robot that will resemble 3D PAC-MAN as much as possible. It will be able to move forward, and it will be opening and closing its mouth as PAC-MAN while moving. If something good gets into its mouth (use your creativity), it will make sound. If an enemy ghost will approach it (PAC-MAN will detect it with a sensor), PAC-MAN will turn around and run away.

Task for tigers:  Build a robot that will resemble 3D PAC-MAN as much as possible. It will be possible to control it remotely - either using another unit, computer, tablet or cell phone. The player can start the PAC-MAN, and make it turn 90 degrees left or right at any time. While moving, it will be opening and closing its mouth as PAC-MAN. If something good gets into its mouth (use your creativity), it will make sound (and increase its score). When it will hit a ghost, it will stop moving, make a sad sound, lose one life, and after a remote signal start moving again. After losing three lives, it will print the final score (for each good thing plus 10 points and for each ghost eaten 200, 400, 800 or 1600). After eating something very good, it will gain the ability to eat the ghost for a limited time. During this time a melody is played.

Links that may be useful too:

https://antonsmindstorms.com/2021/06/19/how-to-remote-control-lego-spike-prime-and-robot-inventor-with-python/

https://www.youtube.com/watch?v=M5D429_jVoQ

https://www.youtube.com/watch?v=Oxjgy3C74HM

https://antonsmindstorms.com/2020/06/17/how-to-remote-control-an-ev3-brick-with-spike-prime-over-bluetooth/

Agriculture is one of the areas where robots can bring large benefits: not only for a more efficient production, but also for improving the protection of the environment.  Researchers at the University in Nitra are also working on such robots:

Foto: Vladimír Cviklovič from TF SPU Nitra, source: seminar of robotika.sk

A nice example is a robot that removes weeds. With the help of a neural network, it detects the weed and applies pesticides with very high precision. In this way, it helps to protect the soil, water, and environment, and helps producing more healthy food.

Video: Robot AX-1 produced by Kitler AS

Task for rabbits: Build a robot that can move on the field and searches for black bricks in between its wheels.  The black bricks represent the weed. It leaves brick of other colors untouched. The robot will make a sound signal each time it finds a weed. It should use at least two sensors for searching for the weed. At the end of the line, it will turn around to the next line, and continues in this way until it will process the whole field. Finally, it will announce the total number of weeds found. 

Task for tigers: Build a robot that can move on the field, and searches for black bricks in between its wheels. The black bricks represent the weed. It leaves brick of other colors untouched. The robot will make a sound signal each time it finds a weed, and it will do something with it: either moving it aside, collecting it, or applying some matter (for instance a LEGO piece) on it. It should use at least three sensors for searching for the weed. At the end of the line, it will turn around to the next line, and continues in this way until it will process the whole field. Finally, it will announce the total number of weeds found.