 All right, I've got a bunch of photos I'd like to show you and I think that's okay. This is me, I'm obsessed with caffeine. And I do, it makes me do strange things. That's basically all we need to know. One of the things that I'm going to show you, I think is captured my imagination quite a bit. With the captioning concept of it being wearable, I think the first thing that most people think about is a product that has sketchy history. Google made something called Google Glass and it didn't quite make it into the mass market. And mostly for social reasons, not because of technical reasons. The idea that you would have something that was wearable that would constantly be sending what it saw to the cloud and from who else. Some people thought that was not a very good social environment. And so the social response that was changed the name of the product. But it didn't entirely die. The Google Glass was 2015. And I know it seems like a long time ago because of COVID. But that was when it was conceived. And 2017, it made a reappearance. It came back two years later, but not as a live streaming tool. Instead, they tried to introduce it to enterprise. And so Google Glass is available, but not to consumer. So if you are an enterprise and you have a need for it in, I don't know, manufacturing or maybe training or something like that when you need a heads up display. Or if you need your hands to do something while looking at something, then Google actually doesn't provide it. And the cost price is about 1000 US dollars. So it is available. It came to my attention because in the last couple of years I've been trying to make accessible to persons with disabilities. So tech for the purpose, tech for the purpose, that's the hashtag. So this article, which is on IEEE points to the use case where they were trying to see how this kind of device would be useful for children with a specific kind of disability. Because the tech is already there. It's done the necessary engineering behind it to put it to good use. And I thought this was a good idea. But the problem I had with this was the price tag. So the people I was working with in Singapore also found that this was not accessible. An accessibility device, but it's financially prohibitive. It's not affordable. So strangely inaccessible. So do what, you know, hackware and hackers do. We take part and try and find a local alternative to something that's available in the market for something you can't afford. And that is the approach that I take a lot of people in the Google resonate with. So the question then became what's inside Google Maps. And I Google that. Turns out this picture came up and it says at the bottom, it's surprisingly simple. I don't know about you, but some people would find that surprisingly simple. Others. Mostly people like me, didn't think that that was particularly simple, especially the thing in the corner. But if you worked with lenses and things, it's not exactly simple to make that happen. It looks like there are few parts, but there's a lot of engineering that goes in the end. So if you want to make something that's wearable like this and has a piece of glass at this right in front of you, you can try this now with all your finger or anything with all your phone is close to your eyes. You will not be able to read it physically. It's impossible for your eyes to focus on something that's floating in the store. The best you can do it somewhere here. That's like the nearest distance that you can see. So the question was, can we do without the optics? And it turns out we can. All you have to do is get a display screen and stick it far away from your face. So we tried it. This one in open sky, which I think some people would really like. We came up with the Raspberry Pi as a very nice way to do that. It's a Pi Zero W. And the total cost price came down by a factor of $100. This is a generous number. I mean, if you add up all the component parts in there, it's probably going to cost a lot next. But we're not factoring in the time to print and the time to design and all those other things. But I think generously we could probably sell it for $100. So this is what we have here. It's 3D printed. Got a Raspberry Pi on the side and got a display screen. And it uses high tech space-age technology to hold it all together. Which is a bunch of plastic and anybody want to guess what this is? I'd love to say that yes, you're absolutely right, it's carbon fiber, but it's not. It's even cheaper than that. It's a dollar for this two meter. It's a 50 cents per meter. And it's very commonly used around Singapore and Southeast Asia. When you're angry with somebody, there's a phrase. We tell them to go for a kite. And it's used for big size kites. You go to a kite store and there are a few in Singapore where you can buy this material. For 50 cents a meter. And it's very easy to work with and chop it with a pair of scissors and stick it into your 3D printed parts with the screws in. And you've got a wearable that is highly customizable and puts a screen within your field of vision. And if you connect that screen to a Raspberry Pi, you've got that screen displaying anything you want from the internet. So the design of this was so that it would be modular enough that we could tailor it to individuals. Because remember I mentioned I was trying to work with persons with disabilities. So as cool as this makes me look right now. I know everybody wants what's in the room. It was meant for people who were either hearing impaired or users of hearing aids. And so we designed it so that it would allow for it to be personalized. So individualized. So this noise piece would only fit one person. The earpiece would only fit according to the person. And everything else is kind of interchangeable. So that's what we did. I'm forgetting something. Yes, the wiring is intentionally left for cool factor. And because it's a prototype, so it's exposed. But the end result is you get a screen that's invisible within your field of vision. And it's lightweight enough that it doesn't cause too much of a problem. The challenge then became how you power this thing long enough for it to be useful. Also, what does it do? If you want to have captions and want to see something, what is it actually going to show on the screen? I mean, if you're watching a YouTube video, all you have to do is press a button and you can see the captions on it. So no big deal, right? You're watching video anyway. So but this is meant for real life video, which some of us struggle with. But if you get somebody saying something and you're hearing it and barely able to pick it up, or it's drowned out by white noise or somebody else speaking, it really helps to have captions within the field of view. And now if you talk to people who are deaf or hard of hearing or hearing impaired, they use a tap on their phone. So they usually have it out here and then they listen to what people are saying and then they just see it on the phone. So that's the current state of how people with hearing impairments work. So this was tried to push that down here and see if we can make it right. So that was the intention. It's supposed to have a little microphone at the end of it. It picks up what is being said, send it to the Google Cloud, uses a speech to text engine and then springs back the text in real time. So you can see the captions and what's being said. So that's what we call I hear several prototypes. This was the chopstick prototype, which is important point out because it literally has a chopstick in it. It's actually easier to work with chopsticks than 3D printing everything. That is what inspired this material. If we never use the chopstick and 3D printed everything, we would never come up with this pro tip there use chopsticks. The display is not particularly fancy. It is what you normally use when you want to have a tiny little version and don't want to break the bank. This is like $12 and plug it in the Raspberry Pi again, all standard stuff, nothing particularly scary. You follow the standard tutorials, plug in your Raspberry Pi zero and get your display working. I just put it up here because we tried to watch YouTube on the time. It turns out, it's got a web browser Raspberry Pi OS interface. You can watch a YouTube video. You do need a magnifying glass, but it can be that. So that's the screen that's hovering in front of me. It helps with other makers, but the key person you want to work with is somebody who uses a carrying aid. So we worked with a number of people who volunteered from the same association of debt. They came in, they partnered with a very cool idea. Very few people engage with carrying aid users and very quickly we found out where we made all the mistakes. You know, you think about making this thing with all the tools that you have, you often overlook what it's going to be, how it's going to be used. So when you have something lightweight and more modular enough, you can invite people who are actually going to use it and learn from them takeaway. So what we find out when we talk to carrying aid users is that this year gets in the way of the actual carrying aid. And what you want is something complementary, you don't want it to replace the carrying aid. So we got feedback from this person and said, you know what, try a strap. And so we got rid of these bits, we just pulled them off and then it was strapped instead. And that worked out beautifully for him. But somebody else who tried it said that they were quite okay with it. And so we left it like without the strap. So it depends on the individual user and how they use it. Because you have a modular design, you can come up with things on the fly. All we need is, you know, cable tie and duct tape, you can solve pretty much all the problems. Okay, so that's something we call I hear. And this is a prototype that is now I'm still actively working on. If somebody wants to join in, let me know after the talk. Part two is we took this idea and we did a book. And instead of having something personalized individualized for each individual user. There was a request from these people, and they all are on Singapore, it's a collective of theater people so Esplanade SRT National Library faces like that that do performance parts like on the stage. So they had this idea and they wanted to do something that would allow for hearing impaired or people who use hearing aids to go and watch a live theater performance without having to download a special app. So they could pick up something and wear it and then watch the show, leave it behind and then go away. That was the intention. And being an open source approach and open post projects, we were able to draw inspiration from community responses now. This is a common sight around the world, not just in Singapore. Medical workers responding to the pandemic situation. This is a picture from 2020 when we ran out of personal protective equipment. Some people in Singapore decided to put up their hand and said, you know what, I want to try it out. I'm a geek. I don't know how to do medical stuff, but I have a 3D printer. So how can I help? And it turns out it's not just in Singapore, everywhere people started printing things. So this is a Prusa design. It's downloadable, tested and printed millions of times around the world. There are different ideas that came out before this one. But this is the one that is highly printable, uses the material and lasts the longest. I printed this in 2020 and it's still totally flexible and wearable. So this is where the face you would go. So we drew inspiration from this idea and turned it into this. And you can see literally that has intimate relations with this and produces an offspring, which is a pork hardware for exactly the same concept. And it's highly wearable. You don't have to personalize anything. It's all very, you know, generic, and it has more 3D printed parts. And this is not staying in place because, you know, prototypes. But it's the same screen. And I've designed this to be a little bit adjustable so you can move it, like, you know, in front or further away. And the same telescope in and out a little bit. But the idea is exactly the same. We're trying to turn this thing on. Look, it actually works. Later on, after the talk, you can have a look, it will try and connect the Wi-Fi and fail, but you can actually see some text on the screen. It is entirely open source because, you know, I don't know how to do. I don't know how to do advanced ads. So I'm sure somebody recognizes the software this is made on anybody. Think of that. Thank you very much. Yes, it's the same sort of 3D design software that you use for to introduce CAD to children. If you want to customize a key chain with a 3D printer, then you use TinkerCAD. And it turns out you can push the boundaries with TinkerCAD quite a while and you can come up with something like this and work with theater professionals and get people, actual hearing and CAD users out into the field watch the performance using a prototype that was made on TinkerCAD. So this is where the project is right now. You can call it this play screen because it sounds like this play screen, but it's about plays. So it's a working title, but anybody wants to get involved please do because the play that this was written for is the text that you're seeing on the screen here. And if you think about it, stage performances, when you have hearing and bed people in the audience, they put up some kind of a screen where they show subtitles in a live stage. But if you have an outdoor performance, these two are actors who are performing outside, you can't really carry around the TV screen to show people subtitles. And so a lot of people who are here in the bed don't ever go and participate in these sort of fun and interesting performances. So that was a unique opportunity, and we were able to involve a lot of people in this kind of like prototyping process. So it's not just about hardware. It's not just about, you know, being clever with open source. It is about involving persons with disabilities in your sort of design process. I'd love to show this video possible, but that is not happening. What we learned very quickly when we had people wearing these things and walking around was that it allowed for somebody who has a hearing aid to keep their hearing aid on, and they were able to watch the show exclusively the show because it only has a script. It's not like I hear, which has like, you know, whatever people are saying with live transcripts. This one only displays the script that is performed by the actors. And so it doesn't get in the way of your other interactions with people around it. So there's a little video of people standing around each other. They're all different hearing aid users, and they were able to communicate with each other while the performance is going on. And unlike us, hearing impaired users are able to communicate without making a sound, because they use sign. And when you use sign, you need your hands. So we realized that completely accidentally wasn't like the main thing you could think about when we started designing this. And we gave it to them and they were like, yeah, you know, this is good. So the design process involves users, we learn things that we don't know what to expect. Also, it's quite a cool factor. A lot of people wanted to take the picture of the thing while they were wearing it, while the performance was going on. So the people that participated in this trial had a lot of fun. So this is what we call this play screen. It started off with, you know, nothing but a standard bunch of electronics that you would find in a half space. And so a lot of people have been thinking of various kinds of electronics, but this is where it is now. The trial is complete. SRT is very happy with the success of this one prototype. But like Varsha's, you only made five, you've only made three of yours. So right now there are five that exist. I'd love to increase that count, but I need all the help that I can get. I want to try and optimize the power consumption, change the capability of what you can do with the screen, because it is full color. And all we're using it right now is for text. So one of the people who participated in the thing, they were not deaf, but they were speaking big, actually said, you can, on the same device, have people showing videos of sign. You don't have to show text. And sign has this beautiful advantage that it's not an English. You can sign language. It's the language on the phone. So it trumps in language. The other suggestion that a lot of people have was you can show different languages at the same time. So that's where we are. We're doing this. If you want to know more about the trial, it's on SRT website. If you scan the QR code, it will take you to the military or the thing that I'm doing and got all of this stuff. My contact is over there. And I want to end this off. I want to end this off very quickly with a request for donors for the make a space to the place that we'll be trying out all this other stuff, but this is a tech. We want to keep it going, but we only have until the end of this year. So please do donate and one last request. If there's anybody in the room who has worked with wireless antenna design, or know somebody who is good at this, please talk to Michael later on. Thank you very much.