Biofeedback Flowers at Burning Man

Burning man, the premier desert-based convention, is a vacation for some. [Sam], on the other hand, points out that he is there to get his hands dirty. This year, he (with a team of six) built a set of 20 interactive lotus flowers that light up in sync with a heartbeat.

[Sam]’s biofeedback circuit is able to sense up to two heartbeats per flower. When a person’s heartbeat is detected, a set of high-power LEDs light up from the base of the stem upwards towards the petals for an incredible illuminated display of biofeedback.

The lotus flowers themselves aren’t anything to scoff at, either. They range from 8 to 18 feet high and are made out of steel and rowlux plastic. The circuit boards are all custom-made as well, with every part chosen to be as affordable as possible. The whole installation is powered by a deep-cycle marine battery and a set of 6V batteries, which can run all of the electronics in the flowers for the entire night before needing a recharge.

Burning man is a great example of art meeting technology. For other examples, check out this 2010 pyrotechnic ball, or head there yourself next August! Be sure to check out the videos and the project’s code on the project site as well.

Move Over Humans and Things, Flowers Now On The ‘Net

Tweeting Poppy Plants

The ‘Internet of Flowers’ is upon us thanks to an artist named [Adrian]. He has designed a project that not only monitors the growth of Poppy Flowers but also monitors the soil, air and surrounding activity.

The entire project is based on a Raspberry Pi mounted in a purpose-built enclosure made from laser cut birch plywood. The enclosure is mounted in a window of an adjacent building that has a view of the flower bed. An internally mounted camera was carefully aligned so its field of view was mostly of the plants and would limit taking photos of unknowing passersby. The camera takes a snap shot every 5 minutes, see the time lapse video below.

Tweeting Poppy PlantsA box containing sensors is installed in the flower bed. The intent of this project was not to have the Raspberry Pi spit out hard factual data regarding soil moistness, temperature and ambient noise, but to instead take that data from the sensors and send out a story-like narrative that makes the communication feel more personal. To receive these comments from the poppies, you can follow them on Twitter: @tweetingpoppy.

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Taking moving time-lapse images over days at a time

It’s neat to watch these lilies open and close during the time-lapse movie. But what makes it even better is to see the camera slowly move during the time-lapse event. It’s thanks to a special dolly which the photographers built for this purpose.

The system is based on two curved and inclined pipes which make up the rails of the system. The dolly that rides along the rails has a geared motor on it which turns at 2 RPM. This is used as a winch, spooling a string that is tied to the high-end of the rail system. As the winch winds the string, the dolly slowly moves along the track.

To make this work over multiple days they covered all of the windows in foil and lighted the room with fluorescent fixtures. An intervalometer was used to trigger the camera every three minutes. An Arduino monitors the camera’s shutter LED via a light dependent resistor. Sixty seconds after an image is take the Arduino will drive the dolly motor for a few seconds

The finished video, as well as a hardware show-and-tell, can be seen after the break.

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DIY flower bouquet guaranteed to get you dumped on Valentine’s day

led_flower_bunch

[Erik] is a broke engineer.

When this past Valentine’s day rolled around he didn’t have any cash to buy a gift for his girlfriend, so he had to get creative. Every girl likes flowers, but unless he was going to give his lady some day old daises from the grocery dumpster, he would have to make them himself.

He started by bundling together and bending some T-shirt hangers into stems. He then wrapped them in the green & green/white wire pairs from some Cat-5 cable to give them some color. An old keyboard was sacrificed to create the flower petals and leaves, which were presumably colored with markers before being glued to the end of the hangers. He added a reed switch to the flower pot, which illuminates the LEDs he installed under the petals when a magnet-bearing cardboard placard reading “Love Erik” was placed near it.

How did his girlfriend like them?  Well, let’s just say she’s no longer in the picture. He didn’t tell us if the bouquet was the reason, only that she’s gone. (though we happen to think it’s pretty cool).

 

Keep reading to see a quick video demonstration of the light-up bouquet.

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