 Hey look here we are it is Time for show and tell it's me John Park not your regularly scheduled PT and Lady Ada I'm doing a little guest spot here on show and tell today So I want to thank everyone for stopping by hopefully if you have something to show or tell or both You will get the link the link is in discord so if you go to the Adafruit discord adafruit.it Discord you can get an instant invite and you can jump into this chat We're gonna go for about a half hour We have a few people queued up and we're excited to see what they've got So I'm gonna stop talking right now and bring in our first guest and that's gonna be our good friend Kevin from Digikey Hey JP. How are you doing? I'm doing well. How are you? I'm good. I love the Adafruit background You must be in New York City. I Jumped on the plane from LA to New York about a minute ago and here I am I'm actually in front of my new retro reflective green screen and decided to throw a picture of the The factory back there. So well looks great I think I believe here I might have to do the same thing and have a picture of the the new Digikey warehouse behind me Oh, yeah, it's like a million square feet or something right that goes on endlessly Yeah, it's a million square feet footprint 2.2 million square feet of floor space It's unbelievable. It's it takes like three days just to walk around in it I look forward to visiting that in person one day once once we get all vaccinated and exactly That would be fun. So really quick. I got a quick show until for you today. I was really hoping my Feather RP 2040 was gonna show up cuz I was lucky enough to be one that jumped on quick enough to get the the limited run It's gonna be here tomorrow. Okay, I didn't quite make it today, but raspberry pie It is pie day on Sunday as you all know So I have some special guests, which you are one of them We are gonna do another We're calling it another helping of pie Raspberry Pi roundtable discussion talking all things RP 2040 and the Raspberry Pi Pico And we're just gonna have a fun interactive conversation around what's new with the RP 2040 and how it's kind of affecting the industry and what the future holds for it because I know Adafruit you got some You guys have some great products coming out with the RP 2040. We're all excited about so we're just gonna sit down and talk about it on Sunday at 430 central time So we're gonna try and have that done have it all wrapped up just before the desk of Lady Aida on Sunday That's terrific. Yeah, I should be excited. I'm looking forward to seeing what people are up to I'm gonna talk about a project or two that I've worked on with it, but it's Kind of a nice thing to see the microcontroller that sort of maker microcontroller Market get shaken up like this. Yeah Drop a chip on us a board like this is you know pretty inexpensive. So it's There's gonna be a lot of good conversation. So I encourage everybody to jump out on and check it out. Good. Yeah, great We're looking forward to thank you for inviting me. I'm looking forward to going there and chatting. So thank you so much and May the shipping Fortunes smile upon you and and I hope you get your feather RP 2040 soon. I'm sure I will I look forward to it now next week I'll have a product or a project using the RP 2040 feather Excellent. Very good. We're looking forward to it. Take care. Take our JP Alright next up we've got our own Trevor let me bring Trevor on and see what's new Hey, Trevor, hey Bad, how you doing? I'm all right. Yeah, so what are you working on? What's your latest? So I've been as you as you may or may not know I've been working on a bunch of like AR overlays for boards and different devices this week I did one for the Raspberry Pi 400 Which is pretty cool. This is like a personal computer with the keyboard and Keyboard and mouse attached to it, which is pretty cool. But behind it You can see right here. There are these GPIO pins and I made an overlay for that So I'll show you what that looks like right now Let's see There you go So this is an action right here So I'm scanning the back of the board and Boom, there you go the GPIO pins right there. That's excellent That's really really cool the tracking is I mean just having that info is gonna be super helpful But the tracking is just next level like it's kind of freaky how well Yeah, thanks man, it took a while to get down but I finally got it down, you know, but yeah, hopefully soon I can do them for the RP 2040 That's really great. So if you don't mind when you're working on these you've been Doing a few of these so I'm assuming you have sort of a code base that you're leveraging and a technique for preparing your Transparent graphics and stuff. Can you talk a little bit about what what happens when you're like, okay? Here comes the next board? What do I what do you do next? Well, well, all right, so there's a prop. So there is a process So first I'll get like a really like a really high quality picture because I need I need as a reference this is particularly hard because When it comes down to the AR kit framework It looks for a detail like a really detailed picture, but this is this basically almost has like no detail really So I had to kind of like get extra close Sharpen it a bit the image and You know, really just wish and pray. Hopefully, you know, it works and this came out perfectly So there's that and then I just track I Have my obelisk set and then I just like place it in a our world And then that's basically it. So it so it sounds like an element of this is coming up with unique features that are Recognizable have a high enough contrast that they're gonna differentiate it from other stuff So you don't just hold like the side of a tennis racket You got it, that's it man right on It's really great works works really well, I just started working with this this pie 400 today because we have the little cyber decks coming out Soon and so I wanted to start playing around with this really cool computer I showed it to my daughter and I was like this kind of reminds me of where I started on like an Apple 2 To get it all back in one box. Yeah Man, but yeah The odds of me knowing even which pin is which looking at that thing You know from the yeah, I kind of It'll be useful to use the AR app I'm almost wondering can you can you use this with the front facing camera? Like can can you hold your phone? between you and the and the monitor and kind of wedged in there and kind of mirror back the AR is it is it the Regular camera only just a really camera only for now. Mm-hmm for now We'll see how I defeat which feature right right. Yeah, excellent Well, thank you. Thanks for taking the time to talk about it a little today. The results are impressive But it's also really fascinating to learn a little about how you put it together So thank you for putting these together for us. Thanks, man. Appreciate it. Take care. Later, man How about that? Very cool All right. Well, we're gonna move Through our people that we have in order here on our on our green room in the waiting room So next up is Melissa Right Melissa tell us what have you got going on today? Ah, so this new newer high-definition display or eating display came out and So I wrote a little driver for it and I realized while I was writing that that the feather We the new tricolor feather wing that came out. I think in November it has a I'll show you it updating here It oh, I have a look so yeah It has a the same display as the new breakout and So I have the driver working for that as well now the feather wing doesn't have a reset line attached directly to the feather so I Had to do a little trickery to kind of detect if there was a reset pen to find or not Mm-hmm. Oh, excellent. Well, thank you for keeping us moving forward with the latest E Inc. I know that we were got thrown a bit of a curveball with some of the new drivers, right? The the or the the driver chips on these have changed from use, right? So it keeps you right busy The old one is the ilo 373 and the new one uses the ssd 1680 Excellent good. Well, thank you for doing that. Look around with us. Take care. Thanks All right Next up in our queue we have Jeppler. Hey Jeppler Hello Unexpectedly I have the privilege of being the first feather RP 2040 project of show-and-tell and I'm really surprised that simple I put it together with our friend the prop maker feather wing and we can actually play very basic mp3s with it So the concept here is what if we can make an audiobook player? She seemed to be weighing the matter in her mind Give it a good hard knock. She said and So yeah, we can we can do limited mp3s and you've got like six megs of storage for audio files So you can get a 20 minute book on here I don't think we're gonna sell a million of these but it shows kind of The raw CPU power of the RP 2040 can do a little bit rate mp3s It can't go up to the higher bit rate. You need the m4 for that That's what I've been up to with feather RP 2040 which it was windy today and my package blew away and it was under the bush So that's what I had to go through to bring this to you today Well, that's great, thank you for for doing that and that's quite a feat because the mp 3 playback we usually do that decoding on m4 and faster That's right. Oh, and or the RP 2040 is more of a an M zero class Right. Yeah, it's called M zero plus It runs at a very high Megahertz compared to like the atmel samd21s, but it lacks some of the advanced math instructions that mp3 really would like to have So it's a trade-off, but yeah, that's what you can get and there's a poor request To add it, which I don't know if we'll actually incorporate that or not. We'll see yeah Oh, excellent. Thank you for showing it off quite a tech. All right. Have a good night. Take care All right moving light right along because I think we've got ask an engineer coming up at 8 o'clock eastern, right? I think I think we used to have these for an hour I haven't done them in a while I think we're doing a half hour. So I'm gonna I see people nodding So let's we'll move through this. All right. Next up. We've got our own tan new Scott. What have you got? Hello, I've got two things first. I'll show you what I did to my feather Uh, this is a feather rp2040, but what I've done is we have these sockets in the shop And and I had forgotten that I even got one but uh, lady eight I was like, do you have one of these you could use one of these and what it allows me to do is actually, uh, pop The flash chip out and put a different flash chip in there So I've been doing a lot of debugging of different flash chips Especially since we're getting all these different boards with all these different chips So I took one of my two feathers and I uh took the flash chip off and put this socket in place And then I also have all these wires hanging off that allows me to debug the communication of those To the flash chip as well. Oh very cool. So this is a a dedicated feather rig for my My flash works. That's neat. That's quite the socket So you can test like different sizes of flash memory or different Manufacturers to see what does what works for you the way you need to Exactly. Yeah, like different flash chips have different like initialization sequences and they might like Had slightly different commands and stuff like that Um, so yeah, but that'll be good The second thing I wanted to show is something that I I do kind of hardware design in my spare time So I made this while I found Where's the case? I found this really cool usb case by Hammond This is the biggest version of it, but it's designed to have a usb a sticking out there And I wanted to make this socket like sensor thing And so I I got the boards back and I finally assembled them and So one side is a micromod. So this is a spark fun micromod, and it's nice and slim That was the challenge of this whole thing is fitting everything in there And then I designed a 10 pin flex pcb Pinout so that I could have different sensors Uh all connected up into different flex things and I actually have different flex connectors On this board because I'm testing them out. So, um There's like a five five neopixels and then a light sensor and then a temperature and humidity sensor as well So I got to test all that cool. So so that's like a As thin as you can get add-on sort of sort of a carrier board right right? Yeah, exactly It's like, you know stemas are great, but they're pretty large Feather wings are pretty tall as well. So this is my kind of attempt at like something that's super small Super thin. Yeah, um, and they're actually quite simple as well. Like most of them are just the sensor and a capacitor Um, so I got to test that but um, it does I did all the mechanical testing Um, it does fit in the box, uh, although I put the usb connector on the wrong side. So I already did But I tested it I tested everything in the box before I put the connector on I actually soldered it on that's really cool I'd love if you throw up info in in the discord on the uh, the boxes you're using for that because that looks like a neat Standard to fit some some projects of a certain size in as well. Yeah. Yeah. Yeah, I'm guessing they have aluminum ones and uh, As well as the plastic ones or um, I've only seen this in plastic. Um, it comes in like five or six colors neat, um And three sizes, but this is the largest size. I was like, I'm gonna go for the largest size And it's not that much space. It's like five is like six millimeters on one side and like five Like three and like three millimeters on the other. So it's quite tight Really neat design. Oh look forward to uh, to seeing you, uh, put more about that out there Yeah, well, I gotta I gotta see if it actually works I know it doesn't blow up. I did plug it in That's good Very nice. So thanks scott and uh, we'll see you, uh, we'll see you soon and you're doing uh, deep dive on Friday Friday this week friday great. Yep. It'll be friday this week because I'm I'm working a full week Not skiing on friday like I did last week farmer Uh, thanks man. Yep. Thanks for having me All right next up. We've got our very good friend Todd bot He Todd thumbs up All right, I'm showing off two things. Hopefully hopefully I can show this This is I'm playing around with these um With these round lcds and here's a little dial demo that shows, uh, you know, you'll be able to Change the Change the vision of the dial. Um And another one i'm working on is a uh, little like usb locket that shows pictures Here's like, you know, it's large than every every few seconds. It'll change to a different one Like here's one of my cat, you know This is with a qt m0 Qt pi m0 Hackspress it has the actual flash chip on it so that it can actually do the display stuff Um, and then something that you might have already seen which seems already using it Um, since I'm a big fan of the qt pi turns out you can plug a rotary encoder Directly into the bottom of a qt pi and you've got like this instant media knob and uh, here's an example of that as a little little Enclosed thing with a disc. Um, here it is all, uh Printed out in an opaque plastic so you can you know Have that sort of a look. Um, and yeah, that's the uh, that's like some Some uh, griffin power mate, uh next generation sort of feel for the knob, right? Well, that's the thing is we've been talking about like a replacement for these for these power mate knobs that we've got I'm tired of trying to keep those things alive with the drivers Yeah I've got a bad. I've got a bad uh bad breadboard wiring here's the right on But uh, but yeah, this is this thing. I'm currently very excited about I think it's very beautiful. I do have a question though. Um, I've dealt with pixel dimensions My entire life. How do you express? A round screens pixel dimension. You can't say it's like 240 by 240. Can you? Well, I mean it is it is actually to the to the chip and to sycopythana. It is a square Yeah, um, and you then use the like the displayable region is the circle inscribed in that square Yeah, so so all these pictures are actually square images you're uploading Now if you want to do things where you're actually positioning things in the circle Then you have to start doing a little bit of trig, but that's like pretty easy Sign cosine stuff that you learn and like what is it? junior high Yeah Hi Lars, it's so compelling to think of like fitting that into stuff, you know, milling out and it's and it's and it's Nicely high res to this this display. It's uh, let me let me Yeah, 240 by 240 pixels. I believe and uh 16 bit color 18 bit color Yeah That have the cat photos Great work. Um, and that's all I got more on more on those upon your Your github or blog can you point people at a link? Yeah, I'm I'm putting a uh a github examples Repository together and I'll post that into the what I've got so far um, I'll post that when uh When the stream is over. I have one quick request. Could you crank that up to 100 awesome, please because it really is? Bumming me out that we're at There we go. Yeah At least 98 awesome All right, uh next up we've got bill from at makers Hey bill And let me see we've got A mic that is there we go. Hey, I hear you now and I see you and uh and welcome what you got going on So I've got um something neat. Uh, can you go to my just me? There you go. Thank you. So, um, if you followed along with and when you hide yourself, we can't hear you john just so you know that um, and that you don't need to hide yourself, but um for a while now we've had a the ability to make these, um head mice And they're great for people who had spinal injuries and things like that to be able to move their mouse by moving their head but uh, it's kind of been uh, it's kind of been tough because the um What this basically is I'll I'll put it underneath the other camera And you can come back if you want. I don't need the full screen. Hello. There you go. So what this is is a, um A bno 055 uh sensor That is then uh connected through stem and qt To a microcontroller and what we've been using is we've been using This right so originally we first did this we did it with an m4 It's ubitsi, but then you have to solder in the i-squared c-pins and I love the fact that when we they came out with The cutie pie we could have a solderless head mouse and this was huge right you plug it in Wire it together and and anybody can assemble a head mouse if they wanted one The problem with it is that this board really is not, um It is not adequate for what we're trying to do right so um, it is uh, samd 21 m0 and when you're doing it in circuit python there really isn't room for the hid the, um bus i o the i-squared c and the bno 55, um libraries So, uh, carter and I actually had done a whole lot of thinning out in order to make this work. So we put the um We put the hid directly in the interpreter and we thin down the bno We did all kinds of garbage make it work and it does work But it's not something that I can share because it's too much custom stuff So we know they're going to come out with a rp 2040 in the cutie pie form factor So I got mine and I did I got mine today I thought well the first thing I want to do is find out. Can I just run the same circuit python code? on this feather Plug in my my i-squared c And have it work and it almost does let me change my camera I'll show you I mean it technically it it does work. Uh, it just works for a very short amount of time so But um, if I put this on, uh, I don't know if you can see my screen if you put my screen back up So when I plug this in you'll see Here's my mouse on the right right here So as I look left it moves left as I move right it moves right and it totally works The problem was And this is the problem I posted about this afternoon After about this long it would just die It would say um clock stretching too long timed out and it would die. So there is some glitchiness in the um in the i-squared c rp 2040 so by adding this timeout right here By reducing the frequency and adding the longer timeout I am able to totally do it and I thought I'd show real quick while i'm here Um, I'm gonna unplug this for a second why we do this So this is software called. Um, this is software called Cough drop this is an open source software for for speech generation And so I plug this guy back in Right and so now I've got a really good reason to do this You know, I can I can look and I can say, you know, I and I can do dwell So I don't have to click a mouse, but if I want to I You know like it like I like Yeah, you know not you it I like you too. So there you go I go up here and I can I can say whatever sentence I make So this this is the fundamental core of a whole lot of people's ability In general Yeah, so if if they've got a spinal injury Like the head mice are really expensive. They're absurdly expensive. They're on my list of why are these so expensive things So the ability to do this essentially With a $12 feather You know, it is an expensive sensor. It's like a $30 sensor But you're still you're under 50 bucks and under $50 to let somebody communicate Is absolutely fantastic Orders of magnitude less than the commercial product Absolutely. Yeah, so I'm I'm I'm thrilled with it and In fact, I was able to do it in 20 minutes, right? So I done it before but I was able to recreate it on the rp2040 In 20 minutes. I downloaded circuit python I dropped it on there the folks in the in the uh community and the the discord community Help me find a solution to the iSquared C thing and we were up and running. That's great And you're in the uh, you know very earliest days of you know, a group of people who got what? They got them yesterday Early rp2040 so it's uh And I did I did I did update uh the issue in uh in the github. So hopefully we'll actually Work it out. Fantastic. Thanks for uh, thanks for coming on with that and thanks for Contributing that to the community. It's really all it's all good. Take care All right, and we've got time for a couple more people and we have a couple more people. Let's bring on liz Hi liz. What's going on? What's it going? Um A camera's kind of blowing out a little bit but um for folks that are fans of sailor moon Like I am in the first season of the anime Sailor moon has a star locket and when it she opens up There's a crescent moon that spins around it plays some music So i'm trying to kind of recreate that with a circuit playground uh, blue fruit and a tft gizmo um, and then uh, Todd had mentioned um, like cosine and sine stuff for doing circular things And um, he mentioned you learn it junior high. I never actually meant learned it in school Um, and I was trying to uh get a circle to spin around and I was failing a bit So if anyone has any resources for that, please point me in that direction But for now, I've got a sprite sheet. Um, I actually followed your guide on using, um, a separate Oh, yeah a sprite. I think it's right. Yeah, um like that Yeah, and so that's how I made the crescent spinning around and animated that way. So that's great At least um, but yeah, so that's project i'm working on. Um, I'm planning to record the music using the robot xylophone Oh fun. That's really neat. What a cool project bringing together a few your uh interests into one spot and Yeah, I I wholly approve of when it looks like math is going to be the problem with something visual just creating an animation Yeah, that was animated however you want and create a sprite sheet and then pretend it never happened Yeah, that was a hard left turn I took I Excellent. Thank you for showing us that and uh, looking forward to seeing it maybe with music next time Absolutely. All right. Thanks for this. Take care All right, and uh, we have a moment for our last guest, uh, and that's gonna be daniel. So Hi daniel, what's happening? Hello, um, totally new to all of this and this is Essentially the first circuit I put together outside of blinky um, and this part up here is the micro switch for The eta fruit massive arcade button. Well, right and what I did was I 3d printed out a Like a housing for it and essentially it's able and it's hooked up to a pro micro. So it's it's currently um outputting the f3 keyboard Uh command and I've hooked that up through voice meter And so now it serves as a global push to talk button And so now this whole thing acts as a foot pedal that I can use in either zoom calls or Uh over discord when we're playing games and stuff. So that's terrific Uh nice build and if you could I don't know if you're on our discord, but if you could put a little info about the software using uh to to control the global Um push to talk stuff that looks pretty helpful and pretty interesting Yeah, I I like just put this together like like a couple hours ago. So yeah, we'll definitely be Writing about in and putting a blog post and sharing it all Ah terrific. Thanks for sharing sharing that with us. It's a really practical project, but it looks beautiful I love the the printed case you built for it to really nicely done Yeah Thanks for bringing that on and hopefully we'll see you again with another project sometime. Thanks for sharing Bye-bye All right. Well, thank you everyone for stopping by we have about a minute for me to finish up and say goodbye. So Thanks everyone and uh, goodbye and please stay tuned because next up we've got our uh, very own Mr. And mrs. Lady Ada with ask an engineer coming up next. Thanks everyone. Bye. Bye