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Thymio Discovery Kit – Yeti

The Discovery kit contains an A1-sized poster and an explanatory sheet.

On the sheet you will find 6 games to play with the poster, and also advanced challenges to begin programming Thymio.

How can I get the Kit?

The Thymio discovery kit exists in English, French, and German. It can be bought at any of our resellers’. It is also possible to download the sheets and print them yourself. The home printed track might not work as well as the one sold by Mobsya, depending on the quality of the ink.

Here is the explanatory sheet and the poster for the Yeti Discovery Kit:

Explanatory sheet

PDF A1 poster

01

Flee, here comes the Yeti!

Goal: scare Thymio

Select the red behaviour on Thymio and put it down on the Yeti! Place one hand ahead of, and the other behind Thymio and see its reaction!

What happens next

02

I see a track!

Goal: follow the widest black line

One of the six basic behaviours allows to do this task, can you find which one it is?

What happens next

03

Thymio goes skiing

Goal: go down the slopes while avoiding the cliffs

One of the six basic behaviours allows to do this task, can you find which one it is?

What happens next

04

Beware of the pine trees!

Goal: avoid obstacles

Put small objects on the pine trees to create obstacles for Thymio. Can you find the behaviour allowing it to avoid them?

What happens next

01

Flee, here comes the Yeti!

Goal: scare Thymio

Program the robot so that it plays music when it sees an obstacle ahead and behind it. Small hint: you will need at least 2 blocks!
Solution

02

I see a track!

Goal: follow the widest black line

Try to program the robot so that when it sees black with its ground sensors it goes forward and when it sees white, it turns.
Small hint: you will need at least 6 blocks!

Solution

03

Thymio goes skiing

Goal: go down the slopes while avoiding the cliffs

Program Thymio so that when it sees black it changes direction.
Small hint: you will need at least 6 blocks!

Solution

04

Beware of the pine trees!

Goal: avoid obstacles

Program the robot so that when it sees an obstacle, it changes direction.
Be careful not to fall off the table.
Small hint: you will need at least 10 blocks!

Solution

05

A long road

Goal: go around the mountain

Put a cylindrical object on the mountain. You can use a sheet of paper and assemble it as shown in the diagram on the left.
Program the robot so that when it sees an obstacle on one side, it moves along it without touching it.
Small hint: you will need at least 4 blocks!

Solution

06

Let’s sing !

Goal: play a melody while passing over the huts

Program the robot so that it follows the line with one sensor and plays music when it detects the huts with the other sensor.
Small hint: you will need at least 6 blocks!

Solution

Games around the Yeti’s mountain

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Thymio® is a trademark of Mobsya Association – Privacy Policy – Brand usage guidelines

info@mobsya.org

Flee, here comes the Yeti!

Goal: scare Thymio

Select the red behaviour on Thymio and put it down on the Yeti! Place one hand ahead of, and the other behind Thymio and see its reaction!

What happens?

When Thymio detects something with any of its 5 front and 2 rear sensors, it is afraid and makes a lot of noise! It’s not working? Try putting your hands further away and then slowly moving them closer to the robot.

I see a track!

Goal: follow the widest black line

One of the six basic behaviours allows to do this task, can you find which one it is?

What happens?

The Investigator mode makes Thymio follow the track! Put your robot close to the track while in Investigator (cyan) mode, it will turn until it finds the track and will then follow it.
Thymio seems unable to follow the track? Look in the behaviour description to find how to calibrate it, then try again!

Thymio goes skiing

Goal: go down the slopes while avoiding the cliffs

With the green behaviour, guide Thymio with your fingers. In the yellow one, Thymio will avoid your hands and finally in the red behaviour, it will flee… Try them all!

What happens?

Beware of the pine trees!

Goal: avoid obstacles

Put small objects on the pine trees to create obstacles for Thymio. Can you find the behaviour allowing it to avoid them?

What happens?

In the Explorer (yellow) mode, Thymio wanders around, avoiding obstacles and also avoiding falling off the table. If you bought a track printed by Mobsya, with a deep black, it will also stop on the black lines!

Flee, here comes the Yeti!

Goal: scare Thymio

Program the robot so that it plays music when it sees an obstacle ahead and behind it. Small hint: you will need at least 2 blocks!
Solution

Each square represents a sensor. They change colour when you click on them: when they’re white and red, it means they detect something close. When they’re all red, it means the robot is surrounded by the Yeti and is scared!

I see a track!

Goal: follow the widest black line

Try to program the robot so that when it sees black with its ground sensors it goes forward and when it sees white, it turns.
Small hint: you will need at least 6 blocks!

Solution

The squares represent Thymio’s ground sensors.
A black square means that Thymio doesn’t see the ground or see a black surface.
The white and red square means Thymio sees something close to the sensor, here it detects the poster.
When Thymio sees white on its left, it turns right to get back on the track. Similarly, when it sees the poster on the right, it will turn left. If Thymio sees black underneath it with its 2 ground sensors, it means the robot is on the track and goes straight forward.

Thymio goes skiing

Goal: go down the slopes while avoiding the cliffs

Program Thymio so that when it sees black it changes direction.
Small hint: you will need at least 6 blocks!

Solution

Unlike the previous exercise, Thymio will now avoid black lines instead of following them.
When Thymio sees the track on the right (black square), the robot will turn left to get back to the ski slope. If Thymio sees the border on its left, it will turn to the right.

Beware of the pine trees!

Goal: avoid obstacles

Program the robot so that when it sees an obstacle, it changes direction. Be careful not to fall off the table. Small hint: you will need at least 10 blocks!

Solution

If Thymio sees something (white and red square) on its left it turns right to avoid it.
When Thymio sees something in front of it it goes backwards.
If it sees something on its right, the robot turns left.
If there’s nothing in the way (all black squares), Thymio goes straight forward.
If there’s nothing underneath or a black line, Thymio will stop.

A long road

Goal: go around the mountain

Put a cylindrical object on the mountain. You can use a sheet of paper and assemble it as shown in the diagram on the left.
Program the robot so that when it sees an obstacle on one side, it moves along it without touching it.
Small hint: you will need at least 4 blocks!

Solution

Thymio will keep the mountain on its left. If it sees the mountain with its leftmost sensor, it will move forward, and when it no longer sees the mountain it will turn left to try to find it again.

Let’s sing !

Goal: play a melody while passing over the huts

Program the robot so that it follows the line with one sensor and plays music when it detects the huts with the other sensor.
Small hint: you will need at least 6 blocks!

Solution

The two first lines are for following the track with one ground sensor, the right one: when this sensor detects the white poster, Thymio turns to the right, and when it sees the black track it turns to the left.
The other ground sensor (on the left) is used for detecting the huts and plays music as soon as it detects one.
Try changing the music with different notes (height of the points) and lengths (white for long, black for short).

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