Robot Creates Beautiful Light Paintings

Thymio II is a simple robot with simple programming, but it can create amazingly beautiful long-exposure light paintings

2 min read
Robot Creates Beautiful Light Paintings

I don't know exactly who was the first person to figure out that robots could be used for long-exposure light painting (although it may have been the guy linked to from here), but it's something that I've dabbled in for science, as have many others. It's a great way of making art, too, and it's relatively easy to do with a minimal amount of hardware and programming knowledge. Thymio II shows us how.

Thymio robots are equipped with an array of programmable LEDs, and it's very easy to get them to do simple behaviors, like driving around in trajectories that combine lines and curves. Mariane Brodier created all of the images shown here by pre-programming motions, cycling the LEDs through color changes, and then letting the robot go nuts in a dark room while pointing a camera at it with the shutter open for a minute or two. Here's some of what she came up with, along with her descriptions:

The following image has been programmed only with colours, therefore without movements; in order to make this picture, the robot oscillated at the end of a wire that unrolls itself.

For this sequence, I was inspired by the Tangram, a Chinese puzzle that comes from splitting a square into 7 basic parts: five triangles, a square and a parallelogram. The robot being able to make only lines or curves, I could program the outline of several puzzles.

For this sequence, I based my work on the "crop circles" that are often attributed to aliens.

This sequence looks much like the first, except that instead of using all colors, only two colors are alternated making dotted lines. This sequence is the last I made, therefore the trajectories are much more complex that in the first sequence.

There are lots more cool pics at the link below, and you can buy a Thymio II robot for about US $100 right here. Doing this sort of thing with just about any programmable robot with lights on it is reasonably straightforward, and if you come up with anything particularly cool, email us your pics.

[ Aseba ]

Thanks Francesco!

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The Bionic-Hand Arms Race

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A photograph of a young woman with brown eyes and neck length hair dyed rose gold sits at a white table. In one hand she holds a carbon fiber robotic arm and hand. Her other arm ends near her elbow. Her short sleeve shirt has a pattern on it of illustrated hands.

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In Jules Verne’s 1865 novel From the Earth to the Moon, members of the fictitious Baltimore Gun Club, all disabled Civil War veterans, restlessly search for a new enemy to conquer. They had spent the war innovating new, deadlier weaponry. By the war’s end, with “not quite one arm between four persons, and exactly two legs between six,” these self-taught amputee-weaponsmiths decide to repurpose their skills toward a new projectile: a rocket ship.

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