Technology
Jeri’s Brainwave-Activated Light Bulb

One of my fave devices at Maker Faire Bay Area was (the future Mrs. Gareth Branwyn) Jeri Ellsworth’s “Brain Bulb,” a light bulb poised over her head which could read and respond to her “brain waves.” Here she describes the basic hardware and circuit design behind the device. The circuit is built around a low-power Analog Devices AD620 instrumentation amp.


Jeri (and some guy whose name I don’t recall) and her Brain Bulb at Maker Faire

58 thoughts on “Jeri’s Brainwave-Activated Light Bulb

    1. Of course its sarcastic humor. The only people who don’t know who Grant is aren’t ever going to look at the article anyway. Brian’s [Smith] wit is right on the money. Wanna bet Grant probably loves the title? After all, we’ll mention Grant Imahara more often in replies than the article could even if it verbosely spelled his name each time he is referred to. On the other hand, if the article did mention Grant Imahara by name then Brian’s article wouldn’t be as much fun to read.

      Grant? Any input? lol

      1. Um… yes, it was meant as HUMOR. Grant was at Maker Faire via tickets that I gave him.

        PS: I’m not actually engaged to Jeri Ellsworth. More just having fun.

  1. Aside from the fact that the author is engaged to her, what does her future marital status have to do with her awesome hacker abilities?  Can’t she be known for her own abilities?

    Maybe the author should be know as the future Mr. Jeri Ellsworth?

  2. Aside from the fact that the author is engaged to her, what does her future marital status have to do with her awesome hacker abilities?  Can’t she be known for her own abilities?

    Maybe the author should be know as the future Mr. Jeri Ellsworth?

          1. It’s the “‘splody” part that might be too much for me. I’m probably too much of a candy-ass for you. Christmas poppers make me nervous. Jeri was a race car driver.

          2. It’s the “‘splody” part that might be too much for me. I’m probably too much of a candy-ass for you. Christmas poppers make me nervous. Jeri was a race car driver.

  3. This reminds me of an engineering open house at the University of Connecticut back in the early 1970s when I was an undergrad.

    One of the grad students was seated near a D.E.C. PDP-9 with an ace bandage around his head with wires running off to an ADC on the computer.

    Visitors would come up and ask questions, and his answers would magically appear on the console teletype.

    The secret, under the bandage were electrodes, and the computer was effectively a bit EMG machine, with a program interpreting his ‘brain waves’.  The brain waves were actually EMG signals created when he clenched his teeth, in morse code.

    Clever.

  4. I was gonna comment that that looks like the guy that does the bush league projects on Myth Busters. His name Grant Imahara wasn’t in that part of my memory that would make it handy but i knew the face. Oh and isn’t this kind of thing a little yesterday? The maker shop has that truth detecter thing. My terminal right now limits content so the lower photo is all i get. It looks like she seems to be wearing a arm cuff with a wire? Last i checked brainvaes may reside in the head of the subject.    

Comments are closed.

Tagged

Gareth Branwyn is a freelance writer and the former Editorial Director of Maker Media. He is the author or editor of over a dozen books on technology, DIY, and geek culture. He is currently a contributor to Boing Boing, Wink Books, and Wink Fun. And he has a new best-of writing collection and “lazy man’s memoir,” called Borg Like Me.

View more articles by Gareth Branwyn