 Good evening and welcome to the Adafruit show and tell tonight. I'm your host Liz And we're if you would like to join the stream to come on show your projects You can find our discord server Adafruit dot it Slash discord and you'll see a link on streamer to join in but first we're gonna kick things off with our friend J From digikey Pretty good. Can't complain. I wanted to share because I'm working on a workshop So I've been doing I haven't done any real workshops that I myself have put together before I've like work with other people Work with digikey and stuff, but one of my goals for next year is to do fun robot workshops So I've been working on a small little robot design and designed to be easily printed and then we can use the circuit playground To make cool little stem bot so So cute my Yeah, my main goal with it is the reason why it's present on white because I want people to actually draw faces and draw characters and designs on it and that way while we're giving workshops I can kind of like show that you can add a lot of character by giving like just little face Like these are just a face in a little no nod and that's so much Excellent, that's awesome. Yeah, it's also coming with some other designs. I'm working on I just finished pulling this off the printer. It has like physical legs as well as people can choose from So you're going to be choices of like what type of body design a person will want for their robot I'm hoping to get that together and get that ready for digikey for next year for some fun workshops That'd be great And I know that you just gave a talk at hackaday super con and in it you're talking about The how to give personality to your about to begin this little movements Yeah, yeah, I want to I want to expand upon that more I'm hoping to give some more talks about that in the future But as well, I want to be able to share that with this workshop So I can start showing how you can easily add a little bit of illusion of life by just Eyes color changing Smallest interest here in there and they can do the rest. That's awesome. Well, thank you so much Jay I'm looking for these workshops too. That's gonna be great Have a good one Next we're gonna hear for some folks from Adafruit. We're gonna start by hearing from Jephler Hey Jephler Well, I'm sure you're muted. Oh I do that every once in a while. I have the prototype version of a new Adafruit product Which has got a little grid of neopixels on it and it hooks up to your favorite cutie pie I've got an RP2040 here. If you want to head down to the overhead display, I'll actually run this I've got two little demos here. Also, these lovely little magnetic USB connectors are in the store. Love those So anyway, I just whipped up this demo literally in the last 15 minutes It's kind of supposed to be evocative of the matrix because this is the stylish green version of the board The the black version is live in the store right now. I just checked the stock before coming on So if you think this is cool, you know, maybe on pick one up and then the other thing we did is I Was asked we'll do a little text scroller and bonus if there's a heart. So my animation is running on the store the store page of this product, so I'm just really excited that I was able to put together that little bit of code and it's like becoming famous like being live on YouTube. So You know this little guy works with any cutie pie and or gel format board and you have the 25 Neopixel LEDs and this is running circuit Python with With Neopixel library and LED animation library and some custom code It will be in a guide that you were writing Liz as a matter of fact And if you just want to put some LEDs on something I think you know with a battery you can make this into some kind of jewelry item Maybe so I think there's just lots of I don't know if I can't do this But you know, there's there's possibilities here for integrating it into little little things So I'm looking forward to seeing what folks do with it. That's awesome. And thank you so much for writing that code I'm excited to use it when I do the product guide for folks and I agree. It's like perfect size I think for some wearables or maybe like Or maybe like tiny desktop displays, yeah, trying some pixel art So yeah before we were backstage and we were talking about doing like a sand demo It's it's a little bit small for that but if you could figure out how to incorporate also a rotation sensor or Some other kind of sensor to interact with the I'm not really doing anything But just imagine sand on this yeah, I think it so yeah Get get inventive and we'll do we'll see something cool And you know when you do send it into the circuit Python newsletter because we know we could do it with circuit Python Yes, well, thanks so much Jeff and I'm looking forward to playing around. All right talk to you later. Have a good one Next we're gonna hear from Scott Hey Scott, hello Sorry I'm late. I was changing a dirty diaper For those who you don't know. I just got off paternity leave I was watching my kiddo for the last 12 weeks, which has been a pleasure and plenty of dirty diapers Including the one I just did. I thought I'd just talk about a couple things that I kind of did while it was gone That were not diapers One is the Let's see. This is the Bengal JS2 Which is an NRA 52 840 smartwatch that we have in the shop But it usually comes with Esprino, which is like the JavaScript equivalent of circuit Python or micro Python, right? But I was wanting a new watch this one has the like sunlight readable screen Which means it's not great in the dark, but you it has a light so you can't see it in the dark But I got circuit Python running on it I've got a branch with some changes that I need to polish up when 8.0 at least ready to go out the door So I just thought I'd tease that that's not coming like super soon And then another thing that's not coming super soon is this little stem of QT board That I had JLC PCB Assemble for me, which is a really neat service. So like this is the form that it came to me Although I got five. So there's one that I'm already using But it's a weird thing kind of like a seesaw chip where it's actually a Cortex N0 processor in this 20 pin chip here and then there's eight eight pins up here That you can control from the processor plus another four more and an LED And the idea here is that you can have a Stem of QT device that you can load custom code on and use as a co-processor Alongside circuit Python. So we would have like some stock examples where you have an IO expander or like a Analog the digital converter That you could then use is just like you would an I squared C device But circuit Python would actually load the code onto the device for you When you wanted to use it that way. So it's kind of like a versatile Like do whatever you need sort of board that I'm I've been thinking about Very cool. I could definitely do that being handy in projects that are being more intense I feel like circuit Python has been expanding capabilities for folks. So I think this board is very well timed Yeah, it'll be interesting especially because micro dev who's a community member was adding a co-processor API for the low power processor on the ESP s2 and 3 I was having some discussion about like well, we should figure out like how do you manage co processors? From circuit Python both the ones that are like in the chip and then ones that are off the chip as well, right? Which isn't we'll see Very cool. Well, I'm looking forward to that and also more about the watch as well and yeah Yeah, thank you. And the first thing I'm actually going to be working on is web workflow for the Pico W So keep an eye out for that. I just haven't had a chance to actually do work Got through my email Up next we're gonna hear from Ney and Pedro Folks so this week can you hear us again? Yeah, we can hear you Okay So this week we want to do a little bit of a lego add-on project So we have some LED noodles and it's kind of a net of meta thing where we wanted to use noodles For any little shop. So this is the Lego creator set the downtown noodle shop and This is the 3d printed Sign that we designed so it has three different color noodles and then on the back You can see how we kind of routed the wires a little bit. Maybe I'll turn it off. So you can get a better look at it Yeah, so I Figured out like a good way to kind of daisy-chain the wires is just to make it so that the The pins all kind of line up so I made sure that The pins share the you know the ground and the Yeah, so it ends up with just two wires that kind of feed out here I have a little side switch and then put us on the the Lego build it has a This little hinge that lets you open the building and inside there. There's lots of room for batteries to hide in there So we got a battery in there and then I'm using a JC connector So I can disconnect this and put a different battery because the battery did die earlier So that but overall it's a really fun set and if folks are looking to kind of light up their Their Lego builds these LED noodles are really nice Also have a layer-by-layer on how you can kind of design this sort of thing So that it like has the right tolerances and it has like these little built-in bloops so that it keeps the The ends in place and that's really important When when I was prototyping so that they wouldn't fall out of place So I also added a 1x6 Lego bar that kind of dApps onto existing Lego plates Yeah, I didn't really have to modify The build too much it just took out some of the tiles and then just put a bigger plate here and that worked out pretty well So yeah, folks want to build this they can print it out It should fit on most printers and just a little bit of soldering And you can add whatever battery you want and then your review on the set like yeah My 32nd review on that. It's really fun. There's like all these like built-in little doors. Yeah So that's really nice of course all the detail. There's lots of detail inside that we can open You know, I think I don't like so I took it out. You took it out. Oh the little Lego dog There's a little Lego little bird because it's they have molds of this I know it's cool to build it, but I kind of like the little puppies that they have in the birds I know they have like a parrot. So it's like come on. That would have been cool to include the You know, there's a little kitchen in there There's the little noodle bowls the little mini fake actually has a pair of chopsticks and One of the reasons why I went with the design is because like the actual design has this kind of It's not like a bowl. It's more like a paper kind of bowl thing. So that's kind of what I went with that short kind of design Um, and then if let's see if the last thing I'll talk about is folks want to 3d print their own Adibot. Yes. Adibot is such a helpful little Lego mini fake because it can hold wires and sort of Yeah, and he's kind of like Exactly so folks can print out their own A mini adibot as well. But uh, yeah get those those noodles. They're still in stock and Yeah, have a time Get it out Design um, and I love how it also sits so nicely in the in the pegs. I I hope folks will maybe kind of Remix and do their own designs for other city themed bills. Yeah, I was looking at the downtown diner It's kind of big one. It would be good because the sign's fairly large the ratio of it Yeah, the trick is like coming up with a design that utilizes the full length of the noodles You can't cut the noodle and you could mask it and stuff, but I didn't want to mask it, you know try to use Every piece of the buffalo I think that where that came from Something about using all the pieces And that's it. Yeah, that's it But check out the learn guide if folks want to download and there's also a lair by lair Which I should link in the learn guide so folks can kind of get a look at how to make the thing And that's it. Thanks so much guys Thanks for this. Thanks for hosting Of course All right. Now we're going to hear from folks from the community. We're going to kick it off with Sophie Hey, Sophie. Hello um, I just have um An experiment today Experimental things that I'm working on. So um, I've been 3d printing on fabric as as you know been doing a bunch of that And so I thought I would try 3d printing some of the Conductive filament that you can get from protopasta. So it's basically like regular PLA But it has carbon in it. So it makes it conductive It makes it a little tricky to print. It's a little brittle, but um, it's working. Okay I've kind of dialed it in on my on my printer. So I'm going to slide you down here so you can see my desktop All right, this is like my fake overhead camera It works But what I have is a um circuit python that I've just got a little code running on so that when you touch the a2 pad It lights up the leds I have some uh Basically capacitive touch pads that I've kind of um, I've built into this like flexible piece of mesh So what I did first is sew some lines of Conductive thread into the mesh. It's really hard to see but it's these three skinny lines Are actually, yeah, active thread And then So I did that first and then I 3d printed directly onto like over the ends of the thread So the thread is connecting this pad and this pad which are 3d printed Conductive filament. So now if I connect One of these pads To um To my a2 pad So now I'm connecting. I'm basically connecting this one To here to there. So now when I touch it It works. That's so cool. So it's kind of neat It's like I'm making the traces with the conductive thread and then I'm making pads basically With the filament That's so awesome. Yeah, and then I've got a couple I've got another one That's like this I was just experimenting to see what would happen if I printed tiles that are they're just separated by Just a little bit of space So what happens is they're not touching When they're just sitting flat. So let me move this out of the way. So now only this this first pad is Is um Connected and the rest of them are like spaced out. But if I curve it so that they're all touching See if I can do it When they when they curve and they're all touching then it conducts all the way to the end Of the of the strip So it's kind of an interesting behavior Yeah, just things I'm trying and then I've got another idea just if this conductive thread doesn't really work out It's a little tedious to be sewing actually this conductive thread. So I'm going to try some wires. So I did I'm kind of looking at ways that I can connect wire to the conductive filament So I printed this with a hole and a little like trough for the wire to go through Yeah, and then I shoved the end in with a little bit of like a big solder glob there And then I shoved it in that hole and then I closed it up with my 3d pen. So it's just kind of like Nestled in there real good So, yeah More experiments to do but that's what I've been working on. That's so cool I because I know you've done a lot with the 3d printing fabric But I haven't seen folks Combine it with the conductive filament and the thread like I think that could that could be really cool for some like kind of interactive art too Yeah, I want to make um, basically when I take something like this further and make like a flexible like macro pad Like a roll-up keyboard or something like that Or have some kind of um flexible Input area on like a clothing item like a glove or a sleeve Like if you had these kind of going down your sleeve and if you could just like boop boop boop Do you know lights come up or whatever? Yeah, just kind of thinking along those lines. That's great. Well, I'm looking forward seeing your progress on that. Thanks Thanks, Sophie And last but not least we're going to have mark gambler play us out Hey mark. Hi It's going great. I literally finished what I'm about to show Two minutes ago So I've been using a lot of the stuff Jeff had been doing To speed up neopixels So I wanted to apply it and I'm going to hopefully this can turn and show it to my 300 pixel display Uh This was this is slowed down using time dot sleep. So it's not flying past Previously At most I could get about seven frames a second. This is now already at nine if I actually Let's see if this actually works Take out any delay. Yeah, whoa That's amazing, so the speed up is incredible compared to a couple years ago when I first did this project I think this yeah, this is now running at 80 frames a second. Whoa That's better than some video games with a big graphics card Yeah, it's uh The difference is incredible compared to where it used to be. Yeah Um, yeah, and now also It's running A converted font in um I'm always blanking uh the bdf font Okay, you can use true type fonts. Yeah It's not a font. That's awesome. This is just seen different fonts on it before Yeah, and I was just lucky enough to like I just had one sitting around um from another project which I put on Let me see My whole desk is going to be destroyed after this but uh Trying to aim everything. Yeah This is incredible how well it looks and how quickly it is. I haven't tried it with any other Uh any of the other led animations I was using previously but The the speed up is great and now I definitely want more neopixels to build a bigger matrix Yeah, that's that's amazing Yeah, thanks. Well and full credit to jeff he did a lot of the code I was just uh wanting to see how much quicker it was Yeah, but thank you. Thank you so much for sharing. It's great to see this in action and um Maybe I'll give some folks some inspirations for projects known that this capabilities there. So Yeah, it's a lot of fun to do just solder a lot of neopixels together Right All right. Well, thank you so much mark. Okay. Thanks a lot. Oh good night All right, that's going to do it for tonight's show and tell thank you everyone for coming by and showing your projects tonight We're going to have jp's workshop on so stay tuned for that at 8 p.m. Bye folks