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Imagine a Lego creation that can not only move, but also see, hear and talk to you.

That’s exactly what Creative Mindstorms has achieved with Dave, the world’s most advanced Lego AI robotic head.

Created over several months, this robotic head demonstrates the incredible potential of combining Lego bricks with cutting-edge AI technology.

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Dave’s AI brain

What really sets Dave apart is its integration with ChatGPT. This allows Dave to engage in natural, fluid conversations, making interactions feel remarkably realistic. It can even play games like rock-paper-scissors and respond in real-time, creating seamless dialogue.

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AI Lego robotic head. (Creative Mindstorms)

In addition to his impressive abilities, Dave is also bilingual. He can communicate fluently in English and Dutch, making him the world’s first bilingual Lego robot head. This feature demonstrates the potential of AI-powered Lego creations to overcome language barriers and improve global communication.

AI Lego robot head plays games like rock-paper-scissors. (Creative Mindstorms)

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The creative process

Building Dave was no small feat. The creator spent weeks designing complex mechanisms, such as the compact system that allows the eyes to move in multiple directions. The mouth mechanism alone took two weeks to perfect, incorporating more gears than the entire head.

AI Lego robotic head mechanisms. (Creative Mindstorms)

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How does it work Dave

Dave’s realistic movements are powered by a complex system of motors and gears. His eyes can move up, down and sideways, while his eyebrows and the corners of his mouth are also articulated to convey a range of emotions. The eyes, which are perhaps the most complex parts of the machine, are interconnected on a horizontal shaft with vertical axes at either end. They can rotate up and down with a large motor and side to side using a rack and pinion adjustment.

Dave’s jaw is a simple hinge with a motor that pushes and pulls it, while the corners of the mouth are moved by a lifting arm that can rotate up or down. But Dave isn’t just about the hardware. It’s brought to life by nearly 1,100 lines of code that allow it to track hands and faces, recognize faces and objects, read text, count, assess emotions, age and gender, and tell the time.

AI Lego robotic head mechanisms. (Creative Mindstorms)

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Challenges and solutions

One of the biggest challenges was creating Dave’s hair. After struggling with Lego bricks, the creator chose a more practical solution – a wig. This creative solution required some adjustments to the shape of the head, but it turned out to be successful in the end.

AI Lego robotic head and its creator. (Creative Mindstorms)

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Kurt’s key takeaways

Dave represents a significant step forward in Lego’s world of robotics and AI integration. Although it is currently a unique creation and not available for public purchase, it demonstrates the incredible possibilities that arise when creativity, engineering and artificial intelligence merge.

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