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Thymio Discovery kits

Thymio Discovery Kit - Yeti

The Discovery kit contains an A1-sized poster and and 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?

You can find Thymio resellers on this page. It is also possible to download the sheets and print them yourself. The only difference is a silk-screen print layer added on the poster you can buy. This layer reacts better with Thymio's sensors.

Here is the explanatory sheet and the poster for the Yeti Discovery Kit:
- Explanatory sheet
- PDF A1 poster

Calibration

You might need to calibrate your robot for it to follow a black line.

+ Find out how to do that

First, turn it on and activate the pale blue pre-programmed behaviour. The robot's wheels should turn. Then:

	Place the robot's ground sensors above the track and simultaneously touch the front and back arrows to calibrate the black level.
	Put the robot's ground sensors over the white paper and simultaneously touch the left and right arrows to calibrate the white level.

Games around the Yeti's mountain

Discovery
	1. 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.
	2. 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!
	3. 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?
	4. 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. It can also stop on some black surfaces (if they are black enough).

Curious?

You did everything and want to go further? Install Aseba on your computer and launch "VPL for Thymio". You just have to combine an event block on the left and one or more action blocks on the right! Grab your mouse!

1. 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! + What happens? 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!
2. 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! + What happens? 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.
3. 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! + What happens? 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.
4. 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! + What happens? 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.
5. 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! + What happens? 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.
6. 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! + What happens? 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).

You can see that while programming Thymio with the VPL (with the 'ThymioVPL' program), the code is being simultaneously written at the side.
Most of the time, one 'paragraph' of text code corresponds to an event/action couple of blocks. If you click on one of them, the corresponding paragraph is highlighted.
You can also see that if you change some parameters on the action blocks (motor speed, LED colours, etc.), the code is instantaneously modified.