The Thymio caution bot, is a robot that stops and starts based on it's surroundings. If it can't go because of an obstacle it will turn red and make loud noises to alert you. If it an go it goes at a fast speed and turns blue. 

Step 1: Step One: Gather the Legos for Part One

Gather the Following Legos you see in the picture 

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More by woodlandtech:How to Make a Supercharged Thymio Eremote Thymio 2000 Thymio Caution Bot! 
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