BIO HACKING VILLAGE - Biohacking Village Microfluidics Badge

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BIO HACKING VILLAGE - Biohacking Village Microfluidics Badge
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Joel will talk about how the DEF CON Biohacking Village came together in all its wonderful glory
Multiplication sign Fluidics Drop (liquid) Odds ratio Mereology Open set Computing platform
Source code Freeware Open source Gradient Electronic program guide Open set Student's t-test Disk read-and-write head Measurement Graphical user interface Software Visualization (computer graphics) Software Physical system Row (database)
Personal identification number Pulse (signal processing) Algorithm Building Open source Code Software developer Feedback Projective plane Open source BEEP Message passing Software Bit rate Analogy Telecommunication Optics Computer hardware Entropie <Informationstheorie> output Pulse (signal processing)
Open source Surface Projective plane Open source Data storage device Voltmeter Drop (liquid) Fitness function Open set Web 2.0 Bit rate Software Infinite conjugacy class property Computer hardware Order (biology) Fluidics Videoconferencing Maize Computing platform
Videoconferencing Open set Musical ensemble
Sine Joystick Feedback Drop (liquid) Drop (liquid) Open set Logic synthesis Open set Computer programming Neuroinformatik Process (computing) Videoconferencing Circle Whiteboard Game theory Musical ensemble Computing platform Position operator
Graphics tablet Surface Tape drive Open source Drop (liquid) Drop (liquid) Open set Personal digital assistant Order (biology) Videoconferencing Software testing Software testing Right angle Quicksort
Joystick Surface Software testing Drop (liquid) Musical ensemble Open set
Open source Drop (liquid) Software testing Digital signal Musical ensemble Open set
Musical ensemble
Software Einsteckmodul Videoconferencing Drop (liquid) Musical ensemble
Software Pattern language Musical ensemble
Drop (liquid) Musical ensemble Open set
Heegaard splitting Hill differential equation Musical ensemble
Revision control Infinite conjugacy class property Software Phase transition Videoconferencing Quicksort
I'm gonna give this over to Joel and we'll tell you all about this amazing badge and things go with it thanks Fred I think you need to unmute me I am you can hear me hi wow that's great hi everyone I'm Joel Murphy and I got roped into making the badge for the biocking village this year and it has been really fun so far I've been learning a lot and the badge is an actual micro fluidics platform that's made by a fellow named ors Gowens who's a swiss fella and I basically just copied it cuz he did all the heavy lifting in all the work to make it actually work and so it was really easy except for all the parts that went end-of-life during the time during this summer that I had to scrounge around and apparently there was some kind of global shortage of capacitors this summer as ever affected by that a few people crazy so I want to talk about the badge but I want to talk about myself too I'm going to shamelessly promote myself so you may know me or I've heard of me
because I make open BCI open BCI is an open source EEG device you can measure EEG EMG and ECG all the G's with open BCI we're a low-cost high-quality EEG system our say 8 channel system runs for about 500 and a 16 channel system is about 900 dollars we also sell a 3d printed electrode headset with dry electrodes for actually deploying on your head we're wireless you know already for ambulatory experiments and this kind of stuff we're really popular among PhDs and grad students because we're affordable people can run their own high we've booked and run their own experiments if they want to
here's a simple example of the software that we use for measuring brainwaves this is a simple visualizing software allows you to see the signals and all also does recording of data as well open BCI was started in 2013 well I'm sorry 2014 but prior to that I was on a government grant funded by DARPA under the Obama brain initiative that's what kick-started and launched the whole thing up the work I did for that took it to create open BCI the company another
thing that I do is pulse sensor pulse sensor is an optical heart rate monitor for Arduino it plugs right into orde we know and the analog input and it's designed to hold against your fingertip that's actually being incorrect you're supposed to be your finger on the front of the sensor and you see a nice clean heartbeats waveform we've got a bunch of code examples there you see on the left make a servo move to your heartbeat make a speaker beep to your heartbeat we've got heart rate variability software as well so that you can do HRV experiments and also breathing feedback biofeedback experiments as well that's been going on since 2012 more recently this is the
project called Tim pen Tim pin is an open-source master hearing aid this is the device that audiologists and engineers use to create their algorithms for helping hearing impaired people this is work that I'm doing with a team under a five-year grant from NIH and nIDCD national message of deafness and communication disorders and we're a year and a half into our five-year grant we're creating a new hardware every year building on our previous work trying to make things better faster smaller hopefully at the end of our run with this grant we'll be able to provide a behind the ear wearable device that is also open source hackable and useful for research and development of hearing algorithms and then open hack is a
project that I'm working on with Leif who's here in the audience and this is an open source Fitbit because we're kind of sick of fitbit's being so closed and don't get your data so we're working on this project it's again open source hardware open source software we hope to crowdfund it this fall and I'm wearing one if you want to check out Bluetooth heart rate and steps step counting that's that's it right basically but then you can use to you can hack it to do anything you want with it so open
draw at v3 this is the Gaudi labs micro fluidics platform he's got a web store he sells these and accessories you can buy directly from him and essentially what we're doing in order to drive the droplets around on the surface of this of this platform is we're using a high voltage so we're up to 300 volts DC or AC from what he says DC is good enough for what we're gonna try to do this afternoon by the way this afternoon at 5:00 from 5:00 to 7:00 I'm leading a workshop on the badge assembling at putting all together showing you how to create the hydrophobic surface that we need to do and all that kind of stuff so let's just get right down to it and look at some videos I have some audio that I
need to unmute I think I did that okay all right I got the signal this is a fun open dropper video that or is made [Music]
okay cool stuff so one of the things
that you're seeing there he's he's able to program the the platform so I'm like I'm gonna mute it you're able to program droplet movement and he's connected to a computer to do that and so he's created the droplets moving in a big circle and then he's also able to control the position of one of the droplets with a joystick that's on the board so it's pretty versatile pretty crazy stuff also he has feedback so he's able to tell where the droplet is on the on the board as well so that's how he was able to get the I mean he didn't he didn't cover the audio the other thing you need to know about the the open drop platform is it's a sin this guy Wars is really into synthesizers and theremins and like that so it actually plays the music of the Frogger game and because he's able to get feedback on the droplets position he knows if he gets across the board or if he collides with one of the other things cuz he knows where the blue droplets are and he knows what the gluing job with it so yeah pretty tight pretty tight ship okay so the next video
is reservoir test now in that previous video we were going topless alright the droplets were just sitting on the surface with nothing else going on in this case what he's got want to drag this cable over here is you can see it here this is a was a TFT glass or glass that's coated with some sort of a conductive film on one side of it right and you can see the wire here he's grounding that he's grounding that one of the things that you need to do is remove any static charge from your droplet in order for it to work so in this case he's using what looks like Captain tape or something like that to separate the top glass the hydrophobic surface so he's got a droplet that's in between there okay so this is an example of his reservoir test on the reservoirs or the large pads on the right and left of the electrode array and that's where you store your fluid and you'll you'll get it as soon as I press the button I have to unmute excuse me thanks for your patience
that was this
in a minute oh here we go sorry so he's he presses the button and that drags the droplet out of the reservoir and then he's using the joystick to move it around on the surface [Music]
this video has some I think it's got some audio audio in that he's telling you the story about how this software works [Music] [Music]
[Music] [Music] [Music] [Music] [Laughter] [Music]
pretty cool stuff he doesn't have any video examples of any actual science that he's doing with this thing and he's claiming that it's still sort of in this sort of prototyping phase it's it's it's he's on version 3 right now he's pretty much done I would say but anyway that's that's I think that's all I have thank you [Applause]