Systm: DIY RFID beer safe
Systm: DIY RFID beer safe
31:34

Systm: DIY RFID beer safe

Culture
>> Patrick: Today's Systm is sponsored by the United States Air Force, Netflix, and GoDaddy.com. >> Dave: Whether it's an ID chip set for pets, keycards for the office, or new fangled passports RFID's are everywhere, but exactly how do they work and what could you use them for at home? Today we're gonna break it all down for you, everything from how RFID's actually work to assembling your own RFID system and incorporating it into something practical, or something actually kind of impractical like a beer locker for your fridge one that only unlocks when you waive the correct RFID card in front of it denying those less worthy such as your good for nothing, lay about, unemployed brother-in-laws from accessing the beer inside. RFID 101 and building your own beer locker on this episode of Systm. ^M00:00:52 [ Music ] ^M00:01:14 >> Patrick: Welcome to Systm, I'm Patrick Norton. >> Dave: And I'm Dave Calkins. Radio frequency identification is a really neat piece of technology with a whole lot of uses, I mean you've got keycards, electronic toll systems -- >> Patrick: RFID tags? >> Dave: Yes, RFID tags. >> Patrick: Or you like to call RFID. >> Dave: RFID, well, that's 'cause I'm from Minnesota and we're -- we like our acronyms, we like to pronounce our acronyms. >> Patrick: So, it's like RFID? >> Dave: Oh yeah, sure, ya know, sometimes I need a new pair of shoes, ya know, and so I go down to the shoe store there and I say to Ollie, "Ollie, ya got some new shoes," and he gives me the new shoes. >> Patrick: Yeah, before the emails come pouring in from Minnesota he actually is from Minnesota -- Minnesotia -- Canadia, these -- so, badge readers, tags, inventory -- Wal-Mart was trying to get these put into like everything they buy from every company on the planet -- >> Dave: Yeah -- >> Patrick: for tracking purposes. >> Dave: for tracking purposes so there's both the whole like, don't steal me thing but there's also the tracking purposes of, ya know, like what happened to, ya know, 2 shipments, is it still on a truck somewhere? Ya know, 'cause basically you can have a guy without either doing physical inventory of check, check, check, you can have a guy literally just walking by the pallet and it goes ding, ding, ding, ding, ding, ding. >> Patrick: Hopefully there's not too much liquid in the pallet which blocks the RFID tag response. >> Dave: Or coniferous trees or, ya know. >> Patrick: I mean, there actually -- U.S. passports now actually have RFID tags? >> Dave: Yes, which unfortunately, ya know, every technology can be used for good or evil but RFID tags in passports can be definitely used for evil because basically the terrorist's probably are gonna get more usage out of RFID tags because I could walk by, ya know, random tourists with an RFID reader such as this one in my pocket and find out if you're an American or a Canadian or -- >> Patrick: It's a theory, the passport has to be opened, somebody's buying a [inaudible] who -- >> Dave: You can get pretty decent range on better readers. >> Patrick: You're gonna talk about customizing these devices. >> Dave: Yeah, the nice thing about RFID's now is they're cheap enough and they're multi-purpose so basically like, I have in my very wallet here -- I have to the workshop an RFID card, ya know, I never actually take it out of my wallet I actually just plant my butt against the reader and it's read and it's just a dumb little white plastic card. Now, if you're gonna use something like this at home you don't actually need to buy a second RFID. So one of the things you could do is use an RFID reader like this and use your existing work card and you would just program the micro controller to use your existing work card to recognize this card and now open your door, open your refrigerator, let the dog out, ya know, however you want. So, in the long run, ya know, years from now you might have one RFID card which is keyed to your person and then opens up both your work doors, your car doors, your home doors -- >> Patrick: What if you get fired and they take your RFID tag from work, are you locked out of your house? >> Dave: Well, no because you're controlling your house basically, what you're really controlling, and this is where reprogrammable RFID tags come into play, is is that basically something like that can be used, ya know, for multiple purposes. In this case if I program this micro controller to recognize that RFID serial number I can use it for anything. Now, if work takes it away all I have to do is get a reprogrammable one that -- with the same number on it and then I'm still using it. Does that make sense? >> Patrick: Cool, I'm with ya. So, we've got cards, what other type of RFID tag -- >> Dave: What other type -- I mean, there's a million different sources, so I've got some here. >> Patrick: Can I say the word ampoule? >> Dave: Ampoule? >> Patrick: Ampoule >> Dave: I just like it when you pronounce your [inaudible]. So, I got these from Trossen Robotics and we paid retail so this plug isn't because they gave us anything free. One of the things I really like about Trossen is that their customer service is really top notch. Ya know, if you call them up and say, "Hey, I want to order this little $20.00 packet of RFID samplers," they'll give you just as good a service as if you're saying, "Hi, I'm placing a $20,000 order for all sorts of RFID." They're one of the few companies that I've dealt with, in all of my robotics research, that is always just absolutely top notch in their customer service. And the same goes for Parallax, the other brand that we're using in today's experiments, is that both of these guys they have awesome websites with sample codes, sample products, all sorts of things so you don't have to just buy the product and write all of your own code, there's all sorts of stuff that's really easy to modify. >> Patrick: I said the best part about this is that you need special note that these ampoules have not been handled in a medical manner and they have not been sterilized and therefore you should not inject them into people or pets. >> Dave: This one here, for example, is probably what is in your dog, if you have like a German Shepard and you have an RFID ampoule in your dog, it's probably one just like this. >> Patrick: It's not the little one? >> Dave: It's not the little one. And for all of those people who want to do home experimentation with RFID ampoules the real issue isn't that you should be worried about putting in this passive little antenna in your skin, the real issue that you shouldn't do this at home is, simply put, that you probably don't know how to sterilize yourself, the ampoules, or your cutting materials properly. Now, while Gangrene treatments have progressed quite a bit since the 19th century, I really strongly advise against trying to implement one of these into your own skin. I mean, you would have to sew yourself back up and, I mean, really people are -- get kind of queasy about suturing themselves. >> Patrick: Why are the big ones so -- why is this one so big, does it have extra memory or something, or is it a stronger signal? >> Dave: One's read-writable, this one's read only. >> Patrick: So this one's the read only with a single number on it and this one be the read-writable? This one's writable -- how much information can you actually write on one of these? >> Dave: Not a lot, so basically you're writing a Hexed String. >> Patrick: A single Hex String? >> Dave: A single Hex String. It's not a lot of data, it's basically just, it's one of those encode things so if you want to say, "Hi, my name is now 1, 2, 3, 4, 5, 6 rather than my old name being 1, 2, 3, 1, 2, 3, kind of thing, you're just rewriting that. So, it's not one of these things where you're really implanting, ya know, name, address, serial number. The better kind, I mean, you can buy stuff that will do that, okay? The off the shelf, ya know, $1.00 RFID tag is not the kind that can store that much memory. Yes there are industrial sized, ya know, RFID tags, and when I say size I'm not talking about the actual size of the RFID I'm talking about the capacity. For your standard home use you really don't need that much data. >> Patrick: Unless you want to like implant the Book of Job or something. >> Dave: Yeah, it'd probably be easier to memorize the Book of Job. But what you really -- all you're really doing is you want a unique identification tag. [music] We'd like to take a moment now for a short message from the United States Air Force. >> I'm Lieutenant Colonel John Wagner, United States Air Force, I'm the Commander of 45th Launch Support Squadron. Ya know, I've always wanted to be part of the Space Program and the Air Force is an exciting place to do just that. Most people don't realize the Air Force Space Program is equivalent to NASA in size and scope and most cases larger. The launches about once a month and I've got 3 launches here in the next 30 days, so if you want to be in the Space Program the Air Force is a great way to do it. ^M00:08:38 [ Sound effects ] ^M00:08:44 >> Patrick: Alright, are you ready, is it time to read the tag? >> Dave: Let's read a tag. >> Patrick: What's the software you're actually running on? >> Dave: So this is actually the OEM Program that comes with the kit it's -- I haven't even modified this at all. >> Patrick: Alright, so -- >> Dave: So, as you bring this in closely, what you're gonna see is it will slowly pop up and it will actually read that identification number and what you can't really see in TV land is actually saying tag identification is 041627EA69 and then every time you, ya know, take it away and bring it back it'll pop up, yeah. So it's actually reading this type. This is something that my grandmother could have done, okay? >> Patrick: Right >> Dave: Everything in here -- now, this doesn't activate anything but this is the off the shelf software that comes with this thing -- >> Patrick: This is just software that would read the RFID and basically tell the next piece of software along the code to do something. >> Dave: You would then have to modify this so if you want this to open up your, ya know, front door you would have to modify it so that you have a front door mechanism attached to this board which would then open your front door. So, you could take this program, it's totally off the shelf and modify it with something called a relay, it's basically, it's an electronic gate that uses the DC current through this dumb little 9 volt battery to close and electronic gate and then allow something like 110 volt AC current through that relay. >> Patrick: And these aren't special, this could be like the relays you buy at an auto parts store. >> Dave: Auto parts store, these are off the shelf $2.00 relays. I buy mine from Jenco, literally buy them in lots of 100 because I use them for so many ridiculous different things. >> Patrick: They're just a remote control. If you've never used a relay it's a remote control switch. >> Dave: It's, yeah, I wouldn't call it -- well it's a remote control but it's a wired remote control, so all it does is is that DC current comes through it closes a magnetic gate, okay? And what that magnetic gate does is that is the contact switch which then allows the AC to flow through in a what's called a normally open circuit because it's normally open, okay? >> Patrick: Open meaning not closed, passing current. >> Dave: Open meaning no current coming through. And then when you put the DC current through it closes that switch turning it on. You can also have normally closed relays which basically means that it's always allowing the current through until the magnetic switch activates and then it opens, okay, and then it turns something off. >> Patrick: Cool >> Dave: Now, if you're really getting into RFID on a higher end and you really do want to start tweaking stuff then you really want to go to Trossen, which specializes in RFID products, and again, Trossen has so much resources on-line, product like this costs you about 80 bucks. Now, you can hook this product up into a basic stamp board, no problem, you have to start understanding serial level control because here is our standard nine pin serial port, okay. So, your actually only using. >> Patrick: Just won't die. >> Dave: Won't die, why won't the world go to USB, I still don't understand, that should be a USB port not a serial port but it is what it is. >> Patrick: You'll probably be using a USB to serial port adapter for this if you have an older computer. >> Dave: Yes, and for those interested, speaking of USB to serial port adapters, I have one, I carry it with me literally everywhere I go because you always need it. I'm actually talking to the stamp board; they now come in USB's but you have a USB to serial controller there, they're 15 bucks or something like that. >> Patrick: Okay, so the Parallax board will read but they don't offer one that will write to tags, the other -- part of the reason you have the APS.com the Trossen board is 'cause it also writes to tags. >> Dave: Right, so the Trossen board writes to tags as well as reads tags. This is in the higher frequency range, the 13 point 6 megahertz frequency range, you can also buy boards that will read, ya know, both the lower range as well as the upper range, but they're again more expensive just like, you know, anything else in life. Just like Parallax, Trossen has done a lot of the hard work for you so they come with a program that you download, install, it took me from clicking on the link to having a working program on my Desktop, less than 5 minutes, no magic, no programming, it's just the standard installation. And now -- >> Patrick: So basically this is the demo software that comes with it. >> Dave: It's the demo software. So, you can do with this kind of stuff, ya know, you can read a tag like this, so if you put that up it's just the same. ^M00:13:05 [ Background noise ] ^M00:13:12 >> Patrick: Comports >> Dave: Unfortunately, you do still have to work with comports it's just one of those horrible things. >> Patrick: Ah ha >> Dave: And so, you can actually see now we actually know that the Hex of this tag is FE8DDF10000104EO. >> Patrick: Is this a reprogrammable tag? >> Dave: That is not a reprogrammable tag, but so, instead of taking one of these little ampoules, 1 millimeter maybe 2 millimeters by maybe a centimeter and implanting it into your skin you can implant this just about anywhere, but, ya know, you may prevent [inaudible]. So, what I really need is a Swedish intern, [sound effect] excellent. And what we're going to do is we're going to take what's called a poison ring, this is a poison ring so named because it has a secret little gap in it you can buy these at any Goth specialty store or any Goth club, things like that. All it is is a basic -- your basic cute little ring something you might wear to a golf club but it has a little latch and a little secret compartment where you could put poison in if you're going to poison your aunt or, ya know, whomever you might want to poison. So, we're gonna take -- >> [inaudible comment] >> Dave: Or your producer. So, we're gonna take our little ampoule and we're gonna place this little ampoule into our poison ring, and it fits ever so nicely, we're gonna close up our poison ring and lock it closed, it looks like a normal ring. So, the point here is is that we can be creative with our RFID tags. So, now, Camilla if you will do me the great -- << Camilla: [inaudible comment] >> Dave: She says that to me every night. So, we now have what looks to be a normal ring but if Camilla puts that up against our RFID reader [sound effect] -- it's actually reading that RFID tag. So you can put one of these tags just about anywhere, you can put it in a ring, if you happen to be a professional jeweler you could permanently embed that in, ya know, a family signet ring, or your wedding ring, or anything like that. Alright, go away. [sound effect] >> Next time you send me to Goth's Are Us I'm kickin' your ass. >> The Swedish intern's a lot cuter than you, just for the record. >> Patrick: She's nicer too. >> Dave: A lot nicer. >> Patrick: I like the RFID tag. >> Dave: Yeah, so, get creative with your RFID tags, ya know, you can always buy these little ampoules, put them just about anywhere, ya know, you could put them in your belt, you could put them in your shoe, you can have an RFID reader completely invisible sitting on, ya know, your welcome mat. >> Patrick: They're not readable inside your skull I bet, are they? Oh wow, that tickles. >> Dave: Here, hold on a minute, let me see. No, no it's not reading, it's not reading, sorry. Ya know, they come in very flat versions like that and they come in versions that you can stick on to stuff such as this like black one which looks like a black dot, you can even use this as like, ya know, an end of a ring and it's got a little sticky surface on here so you can peel back the sticky surface. Once you've pulled off the sticky surface, ya know, it's one of those things that you can stick to your NoteBook for instance, so I could now take this and I can put this on my NoteBook so now -- >> Patrick: Your NoteBook is a giant -- >> Dave: now my NoteBook has an RFID tag on it that can be read by wands or I can hold my NoteBook up to, ya know, to get WiFi access or something like that. There's a lot of different things you can do with this. >> Patrick: One of which you're gonna show us in the workshop right now. >> Dave: One of which we're gonna do in the workshop, we're actually gonna show how to keep your lying, cheatin', good for nothing, unemployed brother-in-law away from your beer, which you've worked hard at Revision3 to earn by installing an RFID controlled lock on your refrigerator. [sound effect] It's time now for our Netflix sponsored movie pick of the week, Enemy of the State. It revolves around a lawyer, played by Will Smith, who unwittingly stumbles over a murder committed by a rogue group of NSA agents, it's always rogue NSA agents, who try to eliminate Will before he lets the truth get out. Featuring an all-star cast this Jerry Bruckheimer [assumed spelling] flick features action, excitement, and all of the other improbable things you typically see in Jerry Bruckheimer movies. Slot Enemy of the State into your Netflix queue and while you're there don't forget to check out the other 99,999 titles Netflix has including all the latest HD Blu-ray releases, you're bound to find any movie or TV show you're looking for with over 40 shipping centers almost all deliveries happen in just one business day and you don't have to pay a thing for the shipping. Plans start at $4.99 but you're a Systm viewer so we got the hookup for ya, you can get a free trial today by signing up at www.Netflix.com slash Systm. [sound effect] So, here's the exact same board and the exact same layout that we had in the studio but now we want to put this to practical usage. Let's say for example that you have a shiftless, good for nothing, lay about room mate and you're in college and he always steals your beer and you want him to stop stealing your beer, it's hard to put locks and things like that on your refrigerator that you're not gonna lose so let's put an RFID controlled lock on it that is hidden but still completely locks out the refrigerator from the inside rather than the outside. So, all we're gonna do is a very simple modification that in addition to the roughly 60 to $80.00 for the micro controller and the board and then the 40 bucks for the antenna we're gonna add two things, we're gonna add a servo, which is actually gonna control the opening and closing of the lock, and we're gonna add a $3.00 gate lock; this is the kind of stuff that you have like on your outdoor gates and so basically this gets pushed in and it locks and it opens, so this is like $3.50 at a local hardware store. We're also gonna need some angle brackets, which are about 3 bucks, just so that we could mount this properly in the refrigerator. Every refrigerator is gonna be a little bit differently so how I show you this might differ from how you're going to do it at home with your refrigerator. We're also gonna need a couple of cable extensions. Now, if you've used servos before you've probably noticed that servo's always have three wires going between the pins and the actual servo, what you could find very easily are servo extension cables so that you can extend those, ya know, like this. We're gonna need some of these cables to extend the RFID antenna though, now the problem with extending the RFID antenna is is that it doesn't have three pins it has four pins down here, so we have just like on a servo we have ground and we have voltage but then we have two different things, we have an enable switch as well as a serial output switch, so we now have four cables. If you happen to have a cable maker at home, which is like a $20.00 tool, you can make your own four line wire extension, if you don't it's a very, very simple modification, just use two servo cable extensions instead of one and just put two ends on one and then two ends on the other so basically you could have six lines coming out but you're just using two from each, so that's how we're gonna do this. And the reason we're gonna do this is so we can actually put the RFID antenna on the outside of the refrigerator, but the controller board and the actual locking mechanism will be inside the refrigerator so the refrigerator will actually be locked from the inside so nobody can cut the lock off. Theoretically somebody could take the antenna off from the outside but that's not gonna open the refrigerator. So, all we're gonna do is put our little extensions on here and we're gonna plug it right back in the same place we had it before. You will, of course, like all things, want to read the manual if you're buying one of these boards, it's a very simple kind of board to use you shouldn't have any problem using it if you've got, ya know, any kind of common sense whatsoever. So, we're gonna test it again now that we've put it on an extension, we're gonna turn on our board. Now, the nice thing about this particular RFID antenna is it's got a nice little red indicator light and so what you can do is to test against a red indicator light we're gonna take our RFID capsule we'll put it up and it turns green if it senses a properly identified RFID. We're gonna put our servo into our little servo mounting holes, the nice thing about this board is that it actually comes with pre-fitted servo mounts for four servo's so I can just slot this servo in here and using the program, off the shelf program, and if you want a copy of this program just email us at Systm@Revision3.com and I'll be happy to send you a copy of the program, and we can actually see or hear the servo turning as the RFID activates it. So, this servo is then going to be connected to our little $3.00 locking mechanism and this will open and close our refrigerator, alright, so, let's go to the refrigerator. Okay, so, here we have our beer refrigerator and we want to secure it so first we have to put in the latch before we can actually remote control the latch. So, I've got our little $3.00 latch right here and I'm just gonna install this into the refrigerator. Now, the nice thing about refrigerators is this is really good hard plastic which means that you can drill into it with self tapping screws and those self tapping screws will hold very securely so you don't have to worry about the latch being ripped out. Next, we want to install our u-brackets, it's going to be easier for me to install first the face bracket and then put the secondary bracket on it rather than putting these together first, and the reason for that is is because I'm gonna be able -- I'm gonna need to get through this to drill my holes into the refrigerator on the door side. So now, before I add all of the electronics, I'm gonna make sure that the mechanics work. Part of being a robotist is, which this is kind of robotics not really but, is that you have to be both mechanical engineer and electrical engineer, so basically this is the mechanical engineering, it's really pathetic mechanical engineering but it is, ya know, mechanical, and we'll deal with the electrical engineering later. So, I put in my little test cable, my test release cable here so that we're not locking ourselves out. So now, what I'm going to do is close the refrigerator door and make sure that A the door closes completely and B that it can open it. ^M00:24:04 [ Background noise ] ^M00:24:09 >> Dave: It's closed and it won't open because it is now caught on our good little release, so now, by pulling this I can open it. So now, so if I close this in testing you can hear it snap shut, the refrigerator is now snapped, it's good and locked, but try and open it, I can't open it because the catch is in there but if I pull on our dummy release, our testing release, now I can open it. And again, if you play with this you can get much tighter fits and do lots of other things, you can use electro magnetic locks, you can use all sorts of other different things. I wanted this as cheap as possible so basically, ya know, for under 10 bucks we built most of the mechanical stuff here. So now what we're gonna do is we're gonna take our controller board and we're gonna test to make sure that it raises and lowers the lever by connecting the servo to the actual lever. Now, servo's always come with what's called a Horn and what a Horn is is it's just a little thing that, little strip of plastic that connects to the servo hub and then as the servo hub turns it moves just like a clock dial. So, I've just triple tested to make sure that the RFID plate can actually sense this and so now it's strictly a question of mounting the servo Horn in here. We'll actually eventually mount this like this, as far as my version, I'm using a battery for simplicity sake, you would actually want to use a hard-line, in fact, being that refrigerators are electrical appliances you could probably go in from the back, always be careful when working with 110, and put in a permanent power supply to this and then just run the power cable around this way. So once we've got our servo installed we want to triple check to make sure that the RFID reader is still reading everything properly and that the servo will actually open the latch and the mechanism will all operate here. And although RFID is not a contact technology, you don't need to actually touch to do it, it will be interrupted by a metal thing such as the outside of the refrigerator door, so unfortunately we can't install the RFID reader inside the refrigerator, it's gonna have to go outside of the refrigerator. Well you really don't want dangling cords going up and around, so what we're gonna do we're gonna drill a small hole through the door, we're gonna run our wires out on the other side of the door, and then we're gonna insulate it because it is a refrigerator and so we do want to keep things insulated, which is just really a spot of hot glue or something like that and then hot glue will keep it insulated enough. Okay, so, I've run the wires outside of the refrigerator and plugged the RFID receiver back in. Now I'm gonna take one of my RFID capsules and place it against it, we can see it's green, and if you can hear that, I can actually hear the servo going in the background, so now I know that everything works. Everything's up and running so now it's just a question of permanently mounting and let's do our scary, scary test, which is to say we're actually gonna mount, close the door and it should lock and we're gonna try to open it only with this. Okay, now, our refrigerator happens to be stainless steel and what that means is that it conducts electricity which sounds obvious except that if you look at your little RFID receiver you'll also notice all sorts of contacts sticking out so if you're not careful and you just put the RFID antenna against a stainless steel refrigerator it's very easy to short it out and blow it up, then you'd be out the 40 bucks for your receiver. So, I'm covering it with electrical tape which just helps to insulate it, you might want to use something a little bit more professional, ya know, like little rubber stand offs and things like that, but this will basically help to protect it on both sides so that I don't have to worry about shorting it out. If you happen to have a wood-grain refrigerator you don't need to do that. So, final test before we hook everything up together, we've still got our little red indicator light here, so now I'm gonna take our little RFID capsule and if I put it next to it, turns green and I can open the refrigerator. Once I close it again I can't open the refrigerator, so now it's just a question of I'm taping over our red LED just to, again, secure it and keep it -- keep the contacts free and now we're going to mount our little Dave's Beer, Keep Out sign that we laser CNC's on our Versa laser and we've got a completed refrigerator. Now your lying, thieving, good for nothing, unemployed room mates can't steal your beer and all you have to do is walk up with your RFID tag, in this case I'm using a capsule, of course you can use an RFID card, you can use one of the RFID key [inaudible], whatever you'd like, you're little secret decoder ring or your poison ring, come up next to it and here's your beer. [sound effect] Let's take a moment to thank one of our sponsors, GoDaddy.com. If you want to make an impact on-line, GoDaddy.com has what you need dot com names as low as $1.99 plus world class hosting, fast and easy website building and much, much more. Get reliable secure web hosting without the long-term contract, GoDaddy hosting plans are bigger and better than ever with 99% uptime, free 24/7 support, and no annual commitment. I use GoDaddy for all my domains myself. If you're in Canada GoDaddy recently started registering dot CA domain names so if you need a dot CA domain name you're in luck, plus enter code SYS1 when you check out and save an additional 10% off your entire order, some restrictions apply, see site for details. Get your piece of the Internet at GoDaddy.com, support Systm by supporting them. [sound effect] That's it for this episode of Systm. What I want to see from most of you guys is your RFID projects; whether it's putting an RFID tag in your grandmother's purse so that she gets stopped every time she walks out of Wal-Mart, whether it's re-encoding RFID tags so that you can walk into your place of work disguised as your best friend or worst enemy, or, ya know, whatever you're doing. Certainly there's got to be a million better ideas than just putting an RFID crystal inside of a poison ring, I mean there's all sorts of cool things out there and so we want to see your YouTube videos, I want to see your photos, you can post this stuff to the forums at Revision3.com slash forums or you can send us an email at Systm@Revision3.com. Let's get some good RFID -- I mean this stuff is less than 100 bucks; you can absolutely do this for under 100 bucks so I want to see what you guys can do with this. >> Patrick: I like that thought. Hey, older episodes as always available at Revision3.com slash Systm, and that's it for this episode we hope you enjoyed it, I'm Patrick Norton. >> Dave: And I'm Dave Calkins. >> Patrick: We're gonna go see if we can clone that badge that Roger brought in earlier, we're not gonna tell you where it's from. We'll see you next week. ^M00:31:15 [ Music ]

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