 Wow quite a full tent, but it's obvious if there's such an interesting talk about the badge everybody is wearing here So give a warm welcome to the two program managers of the batch project It's called knees and the Bastios Wow Okay, wow Thank you for having us It's been an interesting well half a year at least year and Would like to tell you something about it. I'm Sebastian's also known as Sebastian or that's my real name next to me is cartoffel The team lead for the batch team in real life. Nick Blankers. I'm a teacher. Nick is a student in electronics and Let's celebrate the badge so today we have two stories to tell you Nick is going to take you through basically from concept and all the hardware design and everything that went into getting the badges produced the electronics and I'm going to focus on celebrating the badge what it has done for us as a community what it has done for the camp and That's that's the main plan. So on to you. Thank you very much. So I'm going to take you back to 2015 Let's show some hands who here has been to the CCC camp of 2015 Okay, that's a lot of people. That's very nice So this team for the shot 2017 badge Started just after CCC camp Mostly with a lot of brainstorming a lot of ideas some better some not that good But after some brainstorming we kind of Settled on a few goals on a few concepts that we wanted that we kind of needed the batch to satisfy First and foremost it has to work as a name badge. I think it's safe to say that we managed to make that work Second of all The badge has to augment the event. So it has to be usable during the event not just after Then third it had to be very easy to to hack to modify to write programs for to distribute programs for to other badge wearers And finally we wanted to have the badge available from the start of the event For the so for the first three point that I mentioned first one the name badge We looked at a few different technologies. We looked at LCD and OLED Mostly the second one because it's a bit more visible in bright sunlight Which is very important if you're gonna have a badge on an event like this, which is mostly outside right now It's raining, but sometimes there is actually some even though we're in the Netherlands There is some so we had to make it readable in direct sunlight Secondly augmenting the event. We looked at Bluetooth beacons for a while. I think it took us until Nearly 2016 to realize that Bluetooth low-energy beacons weren't going to work They were just going to ruin the 2.4 gigahertz and the knock would probably kill us for that So that was also one of the plans. We didn't exactly use and then for ease of hackability we looked at Some kind of API or web system where you can write simple menu-based apps Also one that we didn't use but I'll get back to that later because by this time we'd already arrived in the summer of 2016 at emf camp who was there? That's not as many people but still quite a number emf actually had an awesome badge We took a lot of concepts from them actually namely that their badge had Wi-Fi it ran Micro-Python so an interpreted language very easy to write apps for Pretty much Python, but for microcontrollers And it had an app library where you could just download apps from other people from the badge so we took a look of inspiration from this and This badge satisfied a lot of our goals that I mentioned earlier Except for one pretty big one the name badge aspect it didn't really Display the name all the time for example when the battery ran out it Kind of you were walking around with the black screen They kind of fixed that by putting a white area over top, but we wanted something more elegant So we arrived at ePaper now ePaper is Fairly slow. It's new. It's expensive It's difficult to work with or so we thought at least there wasn't that much Information on how to get started with ePaper So we just started ordering displays now as you can see some of them have barcodes on them or prices That's because this type of display is used a lot in large stores to display prices of items But you can already see a large advantage they're not even plugged in yet they still display their information this was Quite useful for a name badge, so we decided to pursue this idea further. We ordered a couple of breakout boards and Eventually you can see on the left. It doesn't quite work yet, but you can see you can start to see the outline of some letters This is just a cheap Arduino breakout. We got from China and on the right you can actually see It kind of working Now to give you an idea of the time frame. This was late 2016 so you're already kind of I mean we set deadlines at the start pretty much blew through all of them But at least we got something working so this gave a kind of boost to Continue with the badge so We started ordering prototypes now here you can actually see the first prototype on the left It's basically an ink display And a simple PCB with an ESP 32 microcontroller Which was at the time the latest and greatest from a expressive who we all know for the fantastically accessible ESP 8266 Wi-Fi modules So there's an ESP on the back. There's some buttons on the front Hardware joystick and a display and actually not much more, but it still took us a couple of months to actually Start using the display and on the right you can actually see it finally working. This was at CCC Congress last year so only about seven eight months ago, but it was again a Fantastically forward now the contrast was still pretty bad would we fix that later and one of our team members TSD an incredibly skilled C engineer Actually found a clever hack to abuse the display, which was basically one bit monochrome So either black or white he found a way to abuse it in order to display a grayscale image This may be familiar to do as the same image we used on the badge when you unpacked it I think by this time we derived somewhere in January And it was kind of time to work on something that resembles a badge a bit more so for example add a like a battery management system a nicer interface in terms of buttons and We managed to I Think we had another prototype ready by February Then another a bit later and then the final board and you can see them all in a nice lineup So starting from left to right. That's the very first prototype Then the second board is around February we were working on that Which is when we originally planned to go into production. So we kind of threw that plan away very quickly But at least we had something that resembled a badge people were starting to get excited which in turn gave us a boost So we worked a lot on the software But there were still a few mistakes So you can see the second and third versions the third one is the one that I'm actually wearing around my neck right now the red elite version They might look similar, but there's actually a lot of difference between them So between the second and third board we basically did a complete redesign of the power system of the touch controller because we were Already using one that we never managed to get working. It was a lot more complicated And we switched to one. That's actually really easy Easy to get or so we thought at the time so I'll get back to that later and we also Changed the let me think We I think we changed the the display as well Like two months before the event which was kind of a big change But I'll get to it later. So at the point of the red badge. We were like, okay We now have a fully functioning badge. It's now time to go into production This was already around May. So we only had a few months to mass produce four and a half thousand badges and Get them to the event in time So the stress was kind of ramping up slowly So we thought let's go into production and from the second line, you can see that we didn't go into production at all We were still looking for a lot of sponsorships. I mean the badge is a very very expensive project We didn't want to take money from your tickets. So we set out to make the badge sponsored So we're contacting a lot of sponsors trying to get sponsorship for Components for the PCB for assembly and we spent a couple weeks on that then realize that we weren't going to get everything sponsored so we Found a company in China PCB way to produce the PCBs and assembly they sponsored us in the form of a discount and some additional labor which I'll get back to We also got a very nice contact in Shenzhen to source electronic components for the badge for us It's saved literally tens of thousands of euros compared to when we'd order them ourselves Because our team basically has no experience at all at this kill So it's quite surprising that we even managed to put it off and it's really awesome to see all of you wearing your badges right now and Now as well basically now we had a company that would produce the PCBs for us would assemble them So all of the countless chains of emails could start This is only a tiny section of The number of emails that we send back and forth in order to organize the entire thing we ran into a couple of kind of How do I put this lightly massively breaking? Well complications For example the touch I see that I mentioned earlier We switched to a different one between the red badge and the blue badge that you got or no between the second and third whatever We switched the the the touch I see yeah to a to a really cheap one Yeah to a really cheap one and we like it had some extra functions. So we could could read get rid of some other components But then when we went to actually source the components we found out that they are not so easy to get at all It's already a discontinued chip, but we saw lots and lots of stocks in China But as it turned out everybody and their grandmothers were ordering this chip at the same time as us So we ended up paying I think almost twice of what was originally the plan For those still managed to fit it within the budget Fortunately, otherwise would have to do another redesign The displays actually when surprisingly smooth we did switch to another model than we originally used in the prototypes right before production In order to save a couple that or I think are close to ten thousand euros so Then I think we had arrived at the start of July All of the components were finally in at the assembler and we were already layers deep in replies of emails So we decided to do a small test run For this decision a kind of jaunty from the emf team He kind of hammered it into us that we had to absolutely do a test run We thank him massively for that because otherwise we wouldn't have found the next error So I woke up. I think this was Start of July or something. I woke up one day to find an email I think was titled something like urgent complication or usb soldering error and a base came down to this the USB connectors that we'd ordered had small plastic pegs on the bottom But we didn't have holes for those on the PSB on the on the PCB So we couldn't actually assemble the USB connectors at all Now this was quote-unquote an easy fix So for now for the first 18 boards because we definitely had to get them. We were already in July We wanted to test them all so we basically said well snipped the the plastic parts sold them on anyway So then a couple of days later. We got this picture These were the this was still from PCB way picture with two nicely assembled boards everything did great So we were basically like well ship it ship it ship it We have to get this as quick as possible and we want to test it and then we want to give the ok Produce 4000 four and a half thousand badges and get them to the event as soon as possible Then we received the 18 boards We were testing the first one the power worked the touch worked the ESP worked We could actually flash our firmware to it the display worked. Yeah, it was it was it was a dream The first word was Absolutely perfect spot on and we were happy and we were preparing and then Nick tested a few more Yeah, we tested a few more. So the first one absolutely perfect second one the touch didn't work Third one we weren't able to flash the firmware to it fourth one gave an error six one gave an error And eventually we tested all the boards and found out that out of 18 boards only eight were actually working This was kind of a punch in the face for us because we realized that we didn't have Basically any time left to fix this but we tried anyway. We put it on their microscope Measured all the connections tested and eventually we took some pictures and sent them to PCB way It's these pictures you could see that on the left picture and on the right picture some of the pads of the Qfm chips so the USB serial chip and the touch chip Some of the pads aren't refold properly basically they didn't add enough solder or solder muskets wrong We don't know exactly what happened But we sent this and an email to PCB way and they were fantastic. They were absolutely really helpful They expand experimented on a few boards trying to fix this and they told us that They had fixed the process. I don't know what just happened, but just go with it Please be way told us that they had fixed the process that they knew how to get the failure rates down So at this point we basically shouted to go go go Assemble the rest of the boards. We need them as soon as possible because we're already nearing the second half of July at this point and Then We found another small issue None of you can call it small, but I'll just explain remember to use be connector from a couple of slides earlier The one that had the little pegs in the bottom that wouldn't fit we replaced those sent new ones to PCB way but it turned out that the New connector actually had a small lip going down into the PCB and From the way that the PCBs are penalized before they are Pick and placed and put through the reflow oven in the factory as you can see on the left There's two boards with a like V score in the middle. This score wasn't deep enough So with this lip going down they couldn't actually place the connectors on all of the PCBs So again Basically, we had to decide what to do in this case PCB way again, they were Fantastic They fixed it completely free of charge It turned out that in order to fix it They had to put the panels through the reflow oven first without the connector Then they would break off the panels apart and manually solder on the the USB connector This meant like probably days of extra labor and they did it all for free for us Which was amazing. So, yeah, give them a round of applause So if they didn't if they hadn't done this for us, you wouldn't hold their your badges right now But yeah by this point We're already really close to the event I was waking up every day with emails Starting with a topic very urgent Update very urgent than the next day very very urgent. So I mean imagine waking up to this Yeah, and then me waking up with looking on my phone with a WhatsApp from him. Fuck Yeah, that was a bit stressful But yeah, we were kind of close to the event already So we had them ship the boxes to us And I think by the 26th of July, they finally shipped the last box of badges and We're ready to start assembling the kids that you all got so I think buses will yeah explain the rest Yeah, I'll take over but I'd like to first go go back a few weeks months While this was happening And Nick was getting stressed out because of production I took over and started ordering well basically everything you had in that kit except for the badge and It turns out five thousand times anything is big Yeah, so in the in the back there are the displays the the back stack with the yellow tape Those are the the four thousand displays and to the left of that are the big The bags you it was all packaged in to the left of that were the batteries which were not individually Really packaged in styrofoam or anything just thrown in boxes and easy bags. So it was a lot of fun Yeah, I didn't know you could ship them with UPS like that To the to the front here to the right are the the lanyards also the angel lanyards were in that shipment The company that made it work very awesome working with China with Chinese manufacturers through Alibaba is amazing To the front here are the flyers and to the left the glue that guns I'm very sorry about the glue dots. I just ordered. I ordered the strong adhesive And I should have ordered the extra strong adhesive. I did not know I wanted you to be able to actually unmount the display But turned out they do not work well in heat And to the bottom left are the velcro pads for the battery So, yeah, I luckily had a spare bedroom In the meantime, I had one I had a test batch and I started to promote the event with it Because cats do sell tickets I wrote a little app to monitor the tickets and well my these are to my two cats gizmo to the left and gadget to the right And it was a lot of fun making these photos And The batch was starting to get hyped. We had a blog post that went viral. We were on hackaday. We were on tweakers.net Twitter exploded Our RC channel got busy people wanted to get in people wanted to help out a special shout-out to Artdanian and do be do be made the first augmented the event augmenting app The weather app was made by him to the left Ardanian could not get a board from us. We didn't have them So he made his own This is an actual working batch We actually Reflected with our firmware at the event to just test it out and it works exactly the same as the regular batch It was it was awesome. It was it was it was a good feeling to get to get started So let's give you some numbers on that of our hype We Used up to well at least 500 hours of volunteer time. That's excluding the batch team There was 500 kilograms of batch stuff Every kit weighs a hundred grams and some boxes and some other stuff. There was 500 kilograms of stuff The PCBs from PCB way. We had less than 5% failure And of that percentage a few a third of that was even easily fixable We bought 20 usb cables that survived over a thousand plug-ins each Go anchor anchor is an awesome brand. You can get it from Ali express. They would just work Sorry to make a commercial here, but it's it's the best usb cables. I've ever used We burned out one laptop during flashing We purchased 15,000 stickers with the with our logo on it We had well over 20,000 LEDs and A lot of them were used. Thank you for that There's we got 120 of this display worth of LEDs 25 of the Wi-Fi devices on camp were badges 2,000 of these badges were used and unpacked. I'll show you I'll give proof of that in a minute We made 2.4 gigahertz popular again knock knock came to us Knock came to us and said well normally we get 75% on five gigahertz and the rest is 2.4 gigahertz and we don't care about that anymore and The number was the number for five gigahertz was going up. It's We have to Some of you played the sharp 2017 game made by Without us knowing it by one of our developers Roboof Roboof. Where are you? He's over there. Give him an applause for the for the game seven 700 of you actually installed it and at least start playing it a hundred and fifty one By meeting a lot of awesome new people There were the on day zero, I believe or day one There was the first attempt to decrypt the software and on day two someone hacked it our compliments Yeah, let's show on Let's show on. Oh, sorry. I'm going to fast go on So this this is from this morning the dashboard knock knows best knock has Measures everything that you're doing Well, this is a nice breakdown Apple uses a similar one to promote their devices. Let's let's do that too So the the Yola 16 devices the Raspberry Pi 49 devices Let's continue on down the list for the 490 Windows devices a few more Macs And a few more iPhones a few more Linux devices a few more Android devices and then the most popular OS of this event on Wi-Fi was the badge so 2000 badges at least unpacked and plugged in at least once it's it's incredible It was so nice to just drive around camp and see everybody smiling wearing wearing these things soldering on LEDs It was it was a great experience But we didn't we Let's go one step back and look at the kids building we organized a few sweatshops Well, the boards were in production and were already delayed. We decided to well That's at least package everything except for the badge. That's to our left. That's that's the first sweatshop We did three or four weeks ago By a lot of volunteers a lot of friends a few you can see our Well, a lot of them are also on this field a lot of them are also part of the organization Already stressed out with organizing this event and still they found time to help us out So six 16 volunteers assembling all these batch kits. We we assembled 4,000 bags in Three or four hours was amazing And then to the right you can see the boards were already in we were very happy We were mounting the displays because the displays came in trace instead of properly packaged and packaging would have been just as difficult as gluing gluing them on so this is where the glue dots happened And we so we Mounted this display then flash the board so we could test them That's where we found out the 5% failure rate filter them out So you would have a better experience at the field. That's also the hardware test So you saw when you reflash the board during camp and then mounted displays package it put it in a kit and then we're done Well, not yet. Oh photo in the wrong order. And this is where your LEDs started happening Yeah, we cut up 20 reels of LEDs at least of 30 With the three of us But still it's a lot of fun. It took two or three or four hours. I don't know don't want to remember To the right a few of the batch kits Just a few I said 500 kilograms. It does not Does not come without volume. It's it was massive So we were happily on our way we packaged During this sweatshop we packaged a lot of badges we gave our volunteers Here's a badge have fun with it play with it. Thank you for your time Well, then the excrement hit the ventilator Because well our friends Contacted us on RC. Hey, you flashed a bad the batch was working on USB and it's not working on the battery Luckily, I just had a shipment in and I checked and I checked about 50 boards and yeah 50% of the boards were not working on battery Yeah, yeah, that's what we thought too 50% okay, so let's let's We have one sponsor silicon labs and they sponsored 2500 USB serial chips and we were grateful for them and we still are and Then we purchased in China the other two thousand USB serial chips Which turned out to be fakes, but we weren't we weren't worried about that because they just work as USB serial They were they went through the flashing process everything went fine Until you plug in a battery When you plug in a battery the they forgot one a little bit on the silicon They forgot the put the protection diodes. Yeah input protection on the actual serial lines So the ESP powered up its TX line Which in turn powered up back powered the USB serial chip which then toggled the reset line on the ESP So we couldn't fix it in software And credit to Marcus where Marcus are there your credit to Marcus our hardware designer He found he devised a fix with it will within basically 20 minutes Okay, just cut a trace here and sold around and sold around on a resistor Expander experimented a bit. I did this with a well basically the cheapest USB soldering iron you can find on Aliexpress You can't do that with a So we mounted a resistor that's there's a via of higher beneath here. We cut the trace add it in the resistor and It worked well, how do you rework? 2000 boards Cutting a traces soldering them on so we did Another sweatshop We asked for help and the community responded in masses It was amazing on the top here was still at rough space. This was the weekend before the event so there were already people here building up the event and there a Lot of volunteers helping us out soldering. This is one photo. This does not do justice to what happened there It was heroes work. It was a lot of work and that night we pack it up We managed to fix eight hundred badges, maybe a thousand Still not done still not enough for everybody But that night we package every up Sunday. Everyone was picked up and shipped to the field and then at the field Luckily, we had a tent and some tables and some soldering irons and a lot of friends Who helped us out out of nowhere people turned up help us out to solder these things So that's why you're all holding a badge right now so the The sense of community the sense of togetherness on this project the Amazing energy of people is what what kept us going during all these really terrible setbacks and it's it's been so much fun and The tent was packed ever since the badge war was packed ever since The Whole batch experience, I think I think we've we've changed the game with it the batch bar by the way was Fought up on basically a first day night and ordered on a Friday morning. So the Friday morning before camp I Ordered all the all the stuff for the batch bar and even the banners were done then Just to have a space for the batch there are the arcade got cancelled. Sorry about that We did but we did one better I think Just get a sip. Sorry and it turns out if you have a nice Badge really easy and if you have a place for it It fills it fills the it fills the space It's it's been I just took two photos because I didn't have any time. It was Amazing it was the batch bar was packed from 12 to 12 We had to actually kick people out because we wanted to sleep is has been an amazing experience with our With our team all the volunteers angels stepping in hey, I want to help people teach want to help teach people how to solder It was so much fun so again, thank you for that at We also the displays were perfect. There were no failures on our side for the displays But there is of course user error We brought a few spares, there's a few nicknames. I won't name them at the moment the was a lot of fun and Then on yesterday or the day before yesterday. I've completely lost in time the day before yesterday We got this Who of you got this on their badge? It was it was amazing someone The flashing stations were used on Saturday before the event We just ship them and we didn't bother to change the password so And it was on a sticker Yeah, well we have to get these done done quickly so It's the guy who did this. Are you still here? Give us a wave. No, we already shook hands. This is some this is awesome This is why we're here. I predicted that on day zero or they want someone would find a way to break all the badges Well on day zero there was in the hatcher There was an app that that bricked the badges and the ransomware and the virus has got progressively impressive And yesterday two of our guys Basically decided, okay, let's build in a safe mode and let's build in an antivirus Dev lol build that or something. I don't know who that is but thank you for that and I Already saw experiment experiments and how to break that so Awesome, it's been an incredible experience doing this We'd like to thank a few people All these companies sponsored us you've seen them blink on your badge expressive guardian 360 Stagen electronics Stagen electronics I would like to give a special shout out because he also showed up during one of the sweatshops You just help hand solder the owner of the company came to us and help solder for hundreds of badges Madison Gorka trans IP lease web silicon labs. Thank you for your donations for your sponsorship Two more all our volunteers during our sweatshops during during our crisis is during Enjoying the badge bar everyone who helped out on this project and it's it's a lot of people I think we could easily approach a hundred Out of a team of six people originally on the badge team So a hundred volunteers at least Donating their time to make this project work. It wouldn't have been possible without you and Two more to thank at least and there's plenty more. I'm forgetting or leaving out at the moment. Sorry for that the MF crew Jonte especially was a mentor to us without him. This project would have crashed and burned months ago and Finally, thank you the the whole well batch life experience is something in a dev con which I just learned We I think we have we've upped the game that together It's it's a it's a great experience a great sense of community on this project and thank you for that so Pointing to me 20 minutes. Sorry, you have 20 minutes if you blend you have time Oh, we have 20 minutes. If there are any questions, let me let me let me let me fix that Close up, please. Yeah, we could go on for hours We've had such an incredible experience the past few months ups and downs a lot of good feelings a lot of love but I Think it's time to get the nitty and gritty if you want details Here we are ask us. There's microphones over there. I think so just walk up to one I missed the beginning of the toll. So maybe told about it, but is there a plan to have Bluetooth support on the badge? Bluetooth support We kind of left out Bluetooth support for two reasons one because knock would kill us Because it would murder the 2.4 gear spectrum The second one was that it shows up massive amounts of memory currently So I hope someone is able to fix that but for the moment we left out Bluetooth intentionally. Thank you The hardware is there. Yeah, I was successful was the sweatshirt operation in repairing the badges Percentage-wise sorry How successful was the sweatshirt when actually repairing and soldering the resistance what the success rate was she means? I'm not entirely sure because we when you're doing thousands and in a sweatshirt manner You're you're probably not able to count. Well, we had to have fixed at least 2,000 of them and Not sure about the rest. There were some failures, but that's negligible I I got yeah, yeah, sure. Oh, whichever I Got the Arduino ID blinking lead example, but I was interested to add support for the Screen which is using other fruit GFX library I couldn't find any examples on how to do it with C instead of the Python Yeah, so There is actually somebody who had already Used the Arduino ID on our badges after the sweatshirt. It's a Tremel Hudson. You can look him up on Twitter He actually used the Arduino ID imported all of our libraries and wrote a Game Boy emulator for the badge Thanks So another one. What is the unitary price for the RGB LEDs that you bought? Sorry, could you repeat that please? Yeah, what's the unitary price that you bought for the RGB LEDs? The price for the LEDs, which is actually fun Each single RGB W led LED cost in this quantity seven cents. We have six LEDs on one badge. So each Kit of LEDs if you do the math quickly Yeah, do I need to repeat myself? It's 40 42 cents Worth of LEDs. So yeah, we had to get them Yeah, I have the hand soldering of the LEDs and the and the motor Did you plan that or as an experience to teach people soldering or was it more? Yes, both the the problem was that If you want components on both sides of the board, it has to pass through the pick-and-place machine twice Which more than doubles the cost So that's why we went with the soldering experience, which was also a very excellent introduction. I think Yeah Anyone else? Will the hatchery continue to be serviced and remain online? Will we manage to continue playing or are you opening the source and we can do private hatcheries both? Okay, we're actually doing both. We're keeping the hatchery open for as long as possible for Hopefully at least until the next event, but we'll see and also I think there's a team for Born hack it's an event. I think in two weeks or something. Yeah, the borne. I we already talked to some of the borne hack people and they were looking into making their own Repository for the people who word shot then moved on to borne hack so you could use your batch over there and Continue on with this experience What is in your opinion the best application you have found on the hatcheries? Oh We hope to avoid this question We specifically left out any awards because we were really unable to look through them all If you this morning, I looked up the stats on the hatchery how many apps there were We were close to 300 So it's impossible to choose a favorite and then Leave out all the other awesome stuff. We saw the pizza village monitoring app the old power monitoring app the sauna monitoring app We saw awesome ransomware We saw a free matter app where you could actually people thought it was a hoax But it was a way to get people to their to the village because there was a code on a vending machine You could enter into your batch and get a matter actually So that that was it was awesome. So too many favorites. Sorry and Perhaps you can do them a favor if everybody who has the batch with LED Online on his body. He's now Turn it on So in light is the full room with all the LED experience that we can have together this feeling of blinking lights camp feeling Yeah We were very grateful that a lot of you who've written these light apps Tone down the LEDs a bit The nickname I will not pronounce the official name we use but the name we use was was I saw On the wiki page. So actually batch documentation slash. I saw it was the page around focused on the LEDs. So they're really bright Who've you used it as a flashlight? Wow, okay Thank you. Wow any more questions any anything. Yeah Do you have any leftover patches? Are you selling them? We're not selling We have actually no idea what's amount of stock we have left because there's still people scanning tickets That's that's the first most part. We still have to ship a bunch of badges to all the people who've helped us around the world friend the teams People who were really part of this event, but could not attend for some reason So that first we have some broken boards that may end up in hacker spaces at some point. We don't know yet. So that's it Someone mentioned there were there was an add-on board for the back and there were any yeah, you hundred We bought three hundred of them and we would have liked to save a few for ourselves Unfortunately, we sold them all on day two which we did not entirely anticipate Are you going to make anymore? It's open sources on the get-up. So order yourself We're really done ordering stuff for the batch So if I want to do commercial version of the batch are the limitations about It's fully open source You may have to check the licenses that are on the get-up because I have no clue what licenses which part is under so For the just look it up. But if you do we do expect pasta Okay, then give them a big applause for this beautiful thing Can the bad steam please stand up the bad steam If you were on the bad steam, please stand up So Marcus Rabouf TSD underhand Sprite especially Roasted anyone Come on, I don't know it's on the on here jinx. Are you here somewhere? He's not here. Okay. Our software team lead is not here, but we'll share the love Thank you. Have a pleasant day. Oh and one final thing if you're still here Please help out with tear down of this event if you if you can spare one hour It helps the event a lot. Please stay Thank you