 What is this lady everybody and welcome. It's time for show and tell thanks to well Melissa Liz JP Noon Pedro They've been running show and tell and we've had some more times we can get ready for ask engineer Which we're still gonna do and work makes a dream work saying I want I want to give thanks to them But we're back for a special original cast addition Yeah, that extra half an hour every week that we get Sometimes so we get to watch the show until later, but that extra half an hour. We're getting a show ready We're getting new products ready and we've been doing the Unending dance of chip shortage supply chain crises crises and more so Eventually you get to the point where a half an hour is one of the most precious Substances, yeah, if time is a substance but speaking of half an hour for the next half an hour We've got a wonderful show. We've got a whole bunch of people it if we folks me burping Uh coming by I'm gonna show what they're working on and people from the community are gonna come by We're gonna be here until 7 55. I'm going to just kind of show over here a little bit Um, so let's kick it off. We'll start off with knowing Pedro. Tell us what you're up to. Hello Hey, what's up folks? Hey, check it out. Uh, so yeah this week. We figured we do kind of a showcase video and a guide on using 3d CAD parts in our github repo So we've been kind of slowly building this over the years and we've had Um lots of parts added and we thought it was time to Kind of document how folks can contribute and also how to use it. Um, so I got here a CAD animation of Lab project that we did with jpe. This is the walk person. Yeah, and uh uses all of the uh the models that we have available on the github Uh repo so we got a feather here We have things like uh the switches and neokey All the things and if you don't see a part folks can submit part requests And uh, we've been going through some of those and uh making some parts. So That's what we got this week, but also we wanted to share something Uh else So let me see if I can get it loaded here. So I already like books pt So yeah, there's a really cool Kickstarter that happened. I don't know when I lost track. I didn't think it was gonna happen Years ago. Yeah Oh, this is cool. Yeah, I I thought my kid would be like in high school by the time This is going to be a family heirloom passed down from child to child My father His father's mother's but this is cool No, I wanted to show this off because yeah the electronic engineering books That's always cool. But then of course like arts as soon as in the west all these like dude Where did they get that those super slim arcade part buttons because it's like That wouldn't fit in here. Yeah I got two so I'll send you guys. Oh cool. Check out the parts. Um, so if this is on how logic gates work So yeah, I just got in I'll show it to my kid as soon as we get alpha here It's showing you, you know, the how it not works That's cool. That's very neat that um, it it works differently every, you know, each So it's doing there's like a lot of answers there. So yeah, that makes sense Oh, yeah So like some of the emails that the guy was sending over was like, oh no part shortage Look my sensors. I got they're all different. Uh, my crew's not working anymore. So yeah You guys know it's really hard to pull off a Kickstarter right now. I know This is very cool. Again, I'm surprised they came in today. There was like no tracking on it. So it was a complete surprise So this is pretty cool This Yeah, yeah, that's a it's a cute hack. It's a good idea Over here shows more matrixy is even colors Yeah, our strategy is usually the same thing it's like it's for kids, but really it's for adults I like how the use of foam is the enclosure, right? So Yeah What a great design I like that. It's like, you know, it's like electronics, but in a new format and medium I think that's I always love that when it's like it's it's I mean people rebuilding stuff is good, but um It's very this is very inspirational and in nifty Uh use of microcontrollers and sensors Yeah, so I was wondering if you guys can like I guess do a breakdown or something at least try to source Wherever they got these are cables Yeah, I like them All right All right, thanks now Pedro. Thank you cool show and tell All right, Jeff what you got going on this week? Hello a couple of weeks ago I was teasing this keyboard, uh, which is a cometer 16 keyboard Uh that I was converting it to a run with circuit python and here it is running on a kb 2040 and that guide is live now. So Just the basic creating a keyboard and then I also create a more advanced keyboard with an fn key and Like handling all of the weird like shift, uh two sends a double quote. How do you even do that? And then I had a third program, which I think will be interesting called I named it the uh Matrix whisperer that can help you sort out if you have an unknown key matrix Which are like which are row key which are row pins which are column pins And like get a whole map of the keyboard just by pressing each key in turn. So I will drop a link to that guide In the discord for people who are interested in it and just to tease you there is like a q of at least four keyboards We're gonna do and maybe more I wonder what's next Uh, that one that one will be like fourth, but yeah Is that one next? I I can do it. What's next who's on first? What what what computer is next? The keyboard is just piling up here. It's amazing. So this one this one is coming up. This is a calico atom which was like the very tail end of Making eight-bit home computers and I just had to buy it when I saw it in ebay that it has a wild card key wild card wild card So let me know in discord what you think I should map that to win. Yes working in circuit python Awesome, I don't think so much. It's just like it should just like open up your like command line and just type in like a random like Edit your registry. We don't know what it should do. Yeah, we don't even know Types rm rf. Yeah, it's a wild card. All right. Thank you. Thank you. Jepler. All right. See you around All right jp. What you got going on this week Uh, so I have a Little demo that I showed during my product pick of the week Which was these quad alphanumeric display backpacks, which I love And it was a lot of fun to put together a little demo board of five of them together So we have five colors. I want to string them together And I needed a way to mount that and I didn't really feel like Drilling holes in something or laser cutting something So I grabbed some Legos and I'm and I'm super happy about this this display I made One thing I did was I just put some of our little lcd glass panels in front of it to act as Sort of a contrast because these things always look better with some filtering on top But if I add a little light to it, you can see This is just some stacks of of lego with My camera up with these boards just sort of sitting here nothing fancy, but Through the magic of having enough techniques stuff I was able to make little grippers out of these pegs and hold them in place. Oh, I see that's fun Yeah, they like they've come out and they're just holding in place These are what kind of squish them in place is just The fact that you can push those pegs in there Um, but that's the nice thing about these particular new stemma qt ones Is they're easy to wire and The way that you directed the stemma ports vertically makes them, uh, sit next to each other really nicely They go, yes Flush next to each other. I thought I thought of you I wanted to make you happy Thank you. I appreciate it very much. Okay All right. Well, now we know when john park's workshop is thursdays. There it is. Yeah, a little you can tell But it'll be the same same show it'll be at 4 p.m. Thursdays on ate a fruit Oh, thanks jp. All right And you also got a new guide the walk person That's right. The guide is out and it's cool collaboration with noe So there's going to be some follow-on videos and uh 3d models spin rounds and all that good stuff So it was fun to gang up on that project Okay. All right. Thank you jp. All right next up is liz With her brain her noodle brain Yes, uh, so when the elite the noodles came out I immediately thought of plugging them into a synth, uh, which may say something about my brain But so a guide went up this week, uh, where I showed you how to solder it up to cables And I've got a little demo going where um, the blue is getting a sine wave so you're getting kind of this pwm thing And then the pink is getting one of the oct which is how like notes are um sent to synth So it's all different voltages. And so I have this keyboard hooked up. So when I press a note The green goes on that's the eight signal while i'm holding down. Yeah goes off. And so you can you're going to see the pink Change in brightness depending on Oh, because that's the cv signal itself exactly. Yeah, so I think it's kind of a fun Visualizer for the cv. They do make like led cables with a kind of ugly But these if you pair them with a stacking cable you get kind of the same effect And you can see what voltages and gates you're sending around your system I think this looks so cool. And I love the easel stacking cables And it you know it in your guide, you know, it's funny is I didn't realize that there's no signal actually being passed Oh, yeah It's just visual but like it looks so cool. And then you know, you have a you actually just have more cables Which like who doesn't love more cables Dude, more cables for spaghetti everywhere But I love it. It's it's I love this sometimes the simple The simple projects are really the most fun. I feel like this is something that anybody who does Synthesizer musics can like put together in a couple minutes and like it just totally dresses up Your synth that looks so good. Yeah, thank you Good work. Delightful. Thank you Liz and thanks for doing that blah the Guide and the write up people can check that out. It's on the learning system. Yeah um, and then uh, speaking of guide writings and more Phil B And how are you? How are you doing and thank you for bringing all sorts of guides to life Help people with all these great leds. Oh, you bet. It's enjoyable I mean it's stressful in the moment, but like after a guide's done. It's like yeah, you're like damn that was cool Yeah, it was cool Yeah, um, I want to talk about uh silk screen, you know custom silk screens that we like to do on boards Like here's one on a metro these custom silk screen. I'm playing a metro video tonight. How we did not coordinate this I'm playing. I have a cool video with them with the metro in it excellent. Anyway Love doing these but they are super labor intensive Yeah, so we'll do them on a board that we you know We know there's going to be a lot of them and we love the board and everything But then there's like a thousand breakouts that you know Would be great if we could do a custom silk on all of them, but that's just not really practical So, um been working on a thing. I'm gonna screen Thing yeah, yeah, do you want me to find your screen? Uh, let me do a play pick a window. There we go. Okay. I'll add it Okay a window so Eagle CAD There's these three fonts built in there's there's the vector font The fixed font and then the proportional font and like the proportional font is this beautiful buttery smooth thing and That's great. Uh, but it's only there to use in schematics if you try to put it on the silk screen of a board When you get the board made it's just it goes away. There's it goes ugly fine Yeah, auto it auto converts into a vector so sad Yeah, I mean everyone has the tragedy of like sending it out with the proportional and then you get it back And you're like wait what? Right. So I've been working on some python code that reads in an eagle file Um rasterizes that text using the exact same font. I tracked it down And then inserts the the high resolution raster back into the eagle file Um, and you can replace the other fonts as well as if you want. So here I've replaced both fonts yeah And so if you actually go get a pcb made with this now it will have The buttery smooth font in the silk screen. So it's it's not as nice as a fully custom Uh silk screen, but the fact that you just run this script one. Yeah, and you're done is like hey as a middle ground That's that's not but phil b. What if I want a different font like courier You can do that. You just it's on the command line. Just that's cool. Tell it it'll read in a true type What if I what if I want zaff ding bats You can try it. I haven't tried it, but I mean in theory It's all just it's just Text and fonts and this is really helpful. Yeah, and someone asked in the chat. Can you add fonts to eagle phil? Why don't you add the font to eagle? because you can't you Ugly vector fonts and the the smooth font that you can't use in silk You cannot there's only there's only the one vector there's two versions of the vector font one's just skinnier than the other and then there's the The proportional font that you cannot actually use So this actually solves a problem of like how do you Have custom fonts and I I was always like I I I would have phil b do silk screens But it was always like I felt not bad, but I was like, oh man, it's like so much work to do Uh, and so I'd always just use like the you know the ugly vector font. It's fine It's very legible But I really did want to have a nicer font because phil and I are you know, we love fonts or typefaces I don't actually know the difference and I'm probably gonna get in trouble over mixing those two things up Yeah, this is a place. Um, this is really uh helpful. Thank you for doing this. I'm sure this can help a lot of folks This is what they want and it's amazing. It's 2022 and this is something we're doing Yeah, I don't know that a lot of people need it, but you go comes up. Well, here's a thing It comes up a lot everyone who's bumped into this is like oh my god This is what I've always wanted So and the fact you can choose any font and then it inserts it back into as an object that you can Then place and you can move around. Yeah It's not like It doesn't go into another file and you have to merge it all back in it just goes right back into the eagle file Um, so I hope it's xml. I hope I help someone out there Well, the three the three of us are going to be really excited. I think it's pretty cool I'm looking forward to using I've been super busy, but I have a couple new designs I'm very tempted to uh pull this out and all of our uh boards should look super fancy And then we have to talk about what typeface we want. Yeah adapting that Anyway, the code's not public yet, but once we've tested it and it kind of works will I can't wait to use papyrus on the e-ink. Yeah, we're totally gonna. We're totally gonna make the avatar board Avatar do we know Actually, you know what like comic sans would be pretty funny and it's very legible. I mean comic sans is legible Yeah I got some klingon fonts that we can finally do all right cool the klingon. Do we know? Okay, philly's like wait That's not what I wanted All these fonts are yours except for europa attempt. No kerning here. Okay Okay, I'll see you later. Thanks philly All right next up erin erin. How are you? We're made travels Oh, uh, yeah, I've been away for a while and I just wanted to show off my new project I am uh Getting back into making stuff and making stuff light up And uh, what i'm working on this week is a jellyfish Dozen neopixels inside of it and I am actually making an installation at a There's a mermaid bar in sacramento that has a giant 40 foot long mermaid tank above the bar Where I've been swimming as a mermaid lately And they hired me to do a new led light installation So i'm gonna be making about 50 of these and hanging them up in the dive bar In sacramento, so if you're local to california come by and check it out. They should be up by November we'll see but uh, just prototyping this week and I love the way they turned out they've just made I love the iridescence. They're beautiful and they're gonna be all different sizes I have a really big one here that I'm working on Cool when I hang it up. I it looks like a chihuly. I don't know if you're familiar with that artist But there's a glass artist at a Seattle called chihuly that makes uh amazing installations with all kinds of Yeah, just beautiful stuff and uh And the light shining through that thing is all right. You get a chihuly without having to be a millionaire on a hotel Absolutely All right. Thanks so much erin. Good to see you and welcome back. Thank you Welcome Next up we're gonna go to foamy guy tim. How's it going tim? Hello Uh, so I have uh display. I owe uh fun stuff to show. Oh, that looks great After yeah, we'll talk about the flippy board. I was like how about yeah, that's a nice. That's a nice flippy font Yeah, flippy clock. So this one is um made for the esp feather Uh tft it it does use pretty large sprites So you have to kind of make some space for it and it may take a chunk of the ram, but it is looking pretty good um A couple of interesting things about it. It basically works by using these sprite sheets like this and these are Generated with a pil uh python script. So you can choose your own font. You can choose your own background color It's font night here at aid of fruit. Yeah, you can choose. Yeah, the font you want It will generate these for you. You copy them over to your device and then we've got the uh Widget and I've got it up on github, but it's not added to the library bundle or anything like that yet But it is out there people want to try it This one is just kind of counting arbitrarily to show off the the flip animation but I have also played a little bit with One more that i'll show which is the uh It has access to the internet, of course right esp 32 Feather s2 so it can get the time from online So we also have this one which will fetch the time from an mtp And just show the current time so in my time zone it's 18 49 and it will just update every minute To show the current time. So that's kind of one all right basic project Great work, tim and um, we're usually doing our company meeting during your show on friday But I just want to say I get to tune into a little bit of it in the night Scrub through it later on the night fantastic show tim does a really neat deep dive every single week on marita fruit channel You get all the innards of circuit python on more and thank you for showing everyone how all this stuff works It's uh, it's a combination of code and art and Um, you're you're you're very patient and kind with everyone who has questions about coding So thank you for doing it. Yeah for sure. Yeah, it's my honor. It's a lot of fun All right, excellent work on the flovee cock and and then um, you know papyrus has come up not saying maybe maybe should do it I feel bad people think I don't think like are they serious? Yeah No, yeah, we can we can definitely we can do it. Yeah All right I'll see you later. They should have given us all these fonts and they want us to use them. That's right. Yeah, thank you Okay, next up we're going to go to mouse and then up after mouse will be guy and then We'll go to john and the good stuff and then mark. So we're going to try to get to everyone in next 10 minutes If everyone keeps it two minutes each we can keep this up and get to everyone mouse. What you got? Hey a couple weeks ago. I showed off a breadboard prototype of my digital FM synth module for my urex system making and uh, it was on a breadboard It's a long-term project. I there's I gotta love it more stuff to learn from where to write And I got to keep it around for a long time while I'm working on other stuff and I'm just getting too much too hard to handle on the bread by the wires flying and it was Taking up my breadboard module and everything. So I thought if only there's a way that I can make a more permanent prototype I was racking my brain and then I remembered that. Yes, I have a ate a fruit perma proto board. Yay, so uh I just sawed it up on the board. Uh, here's this is a feather art between 40 I want to just place it in here Oh cool. Okay. So, uh, that it's just a prototype so far, but um Yeah, there's a uh digital on a converter chip and an op amp chip. What sounds great Yeah, and I put it because it's a prototype and I want to reuse the feather when I make it for good I put it on the socket header connector and uh, then I realized what I'd actually done was Make a Eurorack feather wing by mistake. Yeah, there we go Some books like that excellent, uh, proto board work there too. Very very tidy Yeah, I spent some time to make it make it tidy. Yeah. Well, it has a show until the day Yeah, that's right. All right. Thank you so much. I need to make some of those news that licks showed off now That's right now. I can only think it's missing. Yeah, this is all made for Euroracks. Yeah, this is this is a good time to be alive Um Keep coming back and show this off. Okay. Thanks. Yeah, I love the love the look. Yeah Next up Guy what you got going on this week? Hey, um, I want to say really really quick I also got my computer engineering for baby's book. Uh this week. Oh, cool Great timing because I have a baby doing two weeks Fun chip shortage fact, uh, I ordered it before there was a baby I saw I saw it online in the Kickstarter and I was like, I'm gonna want this at some point and Good timing. All right. Hey, congratulations. By the way, thanks for yeah, you're getting a head start on things Yeah, all right. Time to finish up some projects. Let's see. What do you got here? Um, so this is super quick. Uh, it's a mechanical hex color picker So I'm a software developer. I deal with hex colors all the time. Yeah, I found these fun hex dip switches Um, and so I have it here. I just wouldn't focus but I can you know change the color. This is my blue Uh nibble on the end here. I can hit that. Oh, no, no fun And it'll show with the neopixel in real time and then I'll uh, I'll dump it into the youtube chat here Uh, when I hit the when I hit the button You get your uh, oh cool. You get the color and so it'll do our rgb Hsv whatever all the different types. Um, you can figure out the output those Love it Okay, awesome. All right. Good. We'll keep coming back and uh, I like the tight face on this pcb. Yeah Thank you. Front night. I knew it was coming. So it's coming. Yeah, you're a really ahead of things When you're ready bring the kiddo by the future engineer and uh Bring them by I will we already got the eight of plushies too. So yay All right, take care guy See you guy. All right. Congratulations. Next, uh, we're gonna go to john then get stuff and then mark. We still got time. Let's keep it up Hey, john So, uh, just real fast. Um, my father had this idea to make like a little candy drop game with his uh with a drone Oh, yeah, yeah So, uh, we were playing with our to kind of forgot to put like motors on a drone or anything Couldn't get work, but uh, I came up with this idea of using like a quick release kind of Hook on here. Yeah. Yeah, and so uh because the drones have those like, uh, you do a 360 trick with them or whatever, right? Yep, and so Moving around it stays on pretty good. But then when you do the the roll trick that pops off, right? Oh That's how you yeah That's how you trigger it mechanic mechanic. There you go for the win. Oh, yeah So I just want to show that off. Uh, I get to try it out with the kids because it's raining right now, but uh Hopefully soon we'll get to try it out and see if they like it. That's so cool This is like everything when you're younger like we didn't have like none none is as though as possible And like now you can actually do it Oh, yeah, it's a lot of fun. All right. That's looks fun. Fun household. Thank you john. All right, I guess, uh How you doing? Adafruit from burning man. Whoa I wanted to do a show and tell of an art project that I've built and brought out here to burning man I know that eight lady adai you uh, at least know about burning man or ui burner And from one amazing community to another adafruit's community have helped me so much in building this So what is it? It's basically, uh, the synchronized heart art project two people wear heart rate monitors And then we have leds that show the heart rates of the two people so the right hand side is his heart rate On that side we have that person's heart rate So the game is two people try to synchronize their hearts to beat at the same rhythm And the more synchronized they are the further the animation goes all the way up So these two gentlemen are almost completely synchronized There they are synchronized Now if they go out of sync then the animation doesn't go all the way up to the top of the heart So it goes a little bit shorter And so it's basically like a carnival game where you try to like get to the top of the top of the track The technology behind it is super simple. It's just a set of heart rate monitors a feather Feather express something like that. I can't remember from the top of my head right now But basically I have a microcontroller with a bluetooth chip on it and it's programmed with circuit python Which made it super simple to make Your community helped me figure out all of the electronics and the soldering and all that stuff So i'm going to give a big thank you to the Adafruit community for helping everything here And i'm looking forward to making more art pieces for another year for Burning Man So thanks again, and oh, and my name is Gustav okay Wow, thank you so much. Thank you for recording that and doing that. I feel like I was just there That was amazing. I I know that you are a burner or at least, you know about Burning Man Yeah, we went for five years and then now I'm the first the first year I met Lamora She said I had to I had to go to Burning Man with her otherwise. That was it. So I went We were actually talking about the weekend how you used to pull me I had these I had these rollerblades with like gigantic wheels and you pull me through the desert on the bicycle He was yeah, it was that's how we knew we were in love I've gone every year since 2009. So I Beautiful project in great sense and you know what congratulations on getting it working because that's really really hard Like people don't realize how tough it is To get a project up and running in the desert when it's like you can't get replacement parts You may not have tools electricity. We were there preparing stuff when we were there I can tell you the first time that I plugged it in and it was working up there and I got all this, you know Yeah, I was happy because congratulations. That's that is a big deal Yeah, I have my soldering irons. Hopefully I could do repairs on the site But thankfully I didn't have to they work just the way I hope You know, it's actually ironic Circuit Python actually came out of Burning Man a little bit because I had so many projects where I would have to take my laptop And run mp lab to fix stuff And I was like, oh my god If only I had a way of just plugging, you know, it's like the compiler and it's whatever and I was like You know, if there's only a way to edit it as a text file I would have been able to like Easily update the phone or something like that because that was the problem It's like if I had somebody would bring their laptop, but they wouldn't have all the software I'm like, well, you can't download anything but you always are a text editor And so not directly my office is years past But it was definitely like a lot of ids or cloud only you can't do anything with microcontrollers without being connected Like it was like not needing a dongle not needing code not needing to You know license It was all part of why circuit python was to me so cool. I'm like this was a problem that I had I'm like this is exactly what it was designed for easy Debug of it, you know ball anywhere usable in the desert, so Congrats. Thank you so much. This is this is that was a really nice video. We really appreciate it. Thank you I'm happy you enjoyed it. And I'm so thank you for making sure everybody was wearing clothing About it. All right. Thank you. All right great video Oh, whoops. Okay. I'm just gonna watch the video. We're gonna watch it again Let me get you out of here. Okay. Thank you mark. Play us out I think yeah, so very quickly 47 days. I think the halloween's I thought it was probably too late to start not too early So just to keep things quick fresh off the 3d printer is the start of a pumpkin project Right now I just do a circuit python express in there glowing orange because why not? Yeah Already one of my friends requested six of these. I'm not sure why six but Yeah, the next step is to actually Wire it up with some more electronics and see where it goes from there. Well, they're adorable All right, that's super cute And you do have plenty of time to make all of these And you can come back on the show and show the in progress stuff I can't wait to see each one should be stuffed with different electronics. It's like a little advent calendar of pumpkin We'll see how creative I can get in the next 47 days. I guess I think you've got it in you. You got it All right. Well, thanks for coming on tonight. Good to see you. We were um having the other team members co-host and everything Um, so I miss seeing you but now I got a chance to see it this week. I see you guys as well. All right. Thanks mark Thanks a lot All right, that was exciting. Thank you so much everybody for coming by this week That was a jam packed show and tell we'll start asking engineer and just a few moments We'll be back next week doing show and tell every single week 7 30 p.m. Eastern time Um, thank you Yeah Thank you so much everybody for not only being on the show and tell but If you're watching this helping others who doing projects who later on go and see and create and share with others Um, this is uh, one of the few things That can bring people together and it's really cool to see this every single week. All right warms my heart Ask an engineer and get ready for the next show and a few moments. See you next week everybody