Mobile robot Thymio II

Mobile robot Thymio II

Mobsya | A-000000-00349
The mobile robot Thymio II is a small interactive wheel base for education at an affordable price.
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Introducing the mobile robot Thymio II

The mobile robot Thymio II has been developed in collaboration by the Swiss Federal Institute of Technology in Lausanne (EPFL) and the Cantonal Art School of Lausanne (écal). Their aim is to provide an educational mobile robot at a low price.

The mobile robot Thymio II is totally open-source, at hardware and software levels.

The mobile robot Thymio II is easy to manipulate, thanks to its small size (110x110x50 mm) and weight. Its beautiful white body makes it very robust and it is very attractive thanks to its capacitive buttons and colored leds.

education interactive mobile robot Thymio II

The mobile robot Thymio II contains many sensors (microphone, infrared receiver, temperature, proximity, 3 axis accelerometer, ground sensors for line following), actuators (motors, speakers, LEDs) and connectivity (USB, memory card).

But the mobile robot Thymio II knows how to offer opportunities to those who want to increase the capabilities of this robot. You can add a pen in the robot to draw with it and you have access to Lego-compatible attachment points: the only limit is your imagination! The mobile robot Thymio II's designers don't lack of it, as you can see on this page or in this presentation movie:

Thymio is programmed with the Thymio Suite software, which replaces the Aseba software suite (Aseba being also the name of the text programming language). Thymio Suite is compatible with Windows, Mac, Linux and can be used on iPads.

To use Thymio Suite from a computer

Go to the Thymio Suite software download page. Choose the version that corresponds to your system (Windows, Mac or Linux) and launch the download. Then install the software on your computer and run it! You can then select the programming language you wish to use:
  • VPL (Visual Programming Language), an event-driven programming language, based on pictogram associations. Very easy to learn, perfect for young children who are just discovering programming.
  • Scratch 3, a visual programming language based on blocks of instructions that must be logically nested to create a more or less complex program.
  • Blockly, use math, logic, loops, variables and discover more programming concepts!
  • Aseba, a text language developed for Thymio that allows, among other things, to collect data from sensors and actuators and to create much more complex programs.

To use Thymio Suite from an iPad

Programming the Thymio robot with a tablet (only iPad for the moment), requires a relay computer, which runs Thymio Suite, and on which the Thymios will be connected, thanks to their USB Wireless dongles connected to a USB hub. You will also need to install the Thymio Suite Mobile application on each iPad. The diagram below shows the configuration required to run Thymio Suite on a tablet.
Programming the Thymio robot on an iPad

To use Thymio with an iPad: if you already have a non-wireless Thymio robot, you need to add a DIY Wireless kit for Thymio.

Thymio robot firmware update

To update the firmware of the Thymio robot, and thus access the latest features, follow these steps:
  1. Connect your robot to your computer with the USB cable.
  2. Select a programming language in the Thymio Suite software,
  3. Right-click on the robot you want to update
  4. Lastly, click Upgrade Firmware.

Technical details of the mobile robot Thymio

  • Dimensions: 11 cm x 11.2 cm x 5.3 cm (base box: 13.5 cm x 15cm x 7.5 cm)
  • Weight: 270 grams
  • Li-Po Battery: 3.7 V, 1,500 mAh, rechargeable via a MicroUSB port
  • Autonomy: More than 2 hours (much more generally since it recharges as soon as it is connected to a computer during programming)
  • Max speed: 14 cm/s
  • The Thymio Suite software suite can be installed on Linux, Mac OS and Windows
  • 9 Infrared sensors (range approx. 10 cm)
  • 5 Touch Buttons (capacitive technology)
  • 1 Three-axis accelerometer
  • 1 Thermometer
  • 1 microphone
  • 1 Infrared sensor (receiver for remote control)
  • 39 LEDs
  • 2 Wheels-related DC motors
  • 1 speaker

Resources of the mobile robot Thymio II

Data sheet
Age group
6-8 years
    Is it possible to program the Thymio educational robot with a tablet ?

    It is possible to program the Thymio educational robot from an iPad, thanks to the Thymio Suite Mobile application (see our Thymio product sheet for more details).

    The Thymio robot battery is defective. Can I replace it?

    Yes, there is a replacement battery for Thymio, that is available on Génération Robots website. Open the 4 screws on the bottom, open the case and carefully remove the battery from the mainboard.

    The battery is fixed with a doubled sided tape on the case. Replace the battery and reassemble the robot in the inverse order.

    The thymio drifts when it is supposed to go straight.

    Check link and if it's not working send back us the robot. Intructions are on this link.

    My Wireless Thymio doesn't seem to be paired with its WiFi dongle.

    You will just need to follow the manufacturer pairing instructions on this link.

    Is it possible to use several thymio wireless robots in a small perimeter?

    Thymio won't charge when plugged to its power supply.

    Try to charge the robot with a different USB cable. The robot might also be deep discharged. If it's the case, you might want to check our article 'How to check if your Thymio is functioning correctly ?'.

    Can I turn my regular Thymio II into a Wireless Thymio? If yes, how can I do that?

    Yes, it is possible. You just need to buy the WiFi module for Thymio and follow these instructions to install it (please note that some soldering is required). Just follow this link.

    How can I update my Thymio firmware? (the firmware is the software inside the robot, it needs to be up-to-date)

    You just need to follow instructions on this link.

    For which age group is Thymio best suited?

    Thymio will be interesting for a very wide age range: 6 to 14-year old!

    Is Thymio compatible with Scratch?

    Yes, you can program Thymio with Scratch from the Thymio Suite software. Thymio Suite offers you the possibility to program Thymio with Scratch, Blockly, VPL, Aseba, on computer (Windows, MacOS, Linux) and iPad.

    Where can I find exercises and activities for my lessons/workshops?

    We have gathered the best educational resources, classified by levels or by robots on our website. They are accessible via this link.

    One motor of my Thymio robot is not working

    Please contact support on this link.

    Is Thymio compatible with Chromebook (ChromeOS)?

    Thymio Suite, the software bundle that was developed for Thymio is not compatibel with ChromeOS.

    The tactile arrows on the robot are not working.

    Please contact support on this link.

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