 Lady what is this? Hey buddy and welcome to show and tell it's me lady Ada with me mr. Lady Ada We don't always host show and tell we have known Pedro and JP who kick in twice a month We're taking turns we're gonna take turns this weekend next week. We're going to this week in next week We're gonna do the show and tell so welcome back. We're broadcasting live from downtown Manhattan That's where the eight headquarters is located just blocks away from a vendor tower and we're Batman hides And spider-man hangs out and daredevil's on the roof and Harley Quinn is drinking outside Okay, so we've got exciting show for you tonight with all sorts of people from around the community coming by show I put the working on already got a bunch of people Signed up here that looks real good. Let's first kick it off with Kevin from digi key Give us the latest digi news. Hey guys. How you doing ladies news? Well, I think Blinka should be the new superhero That's just my vote. Yeah, Blinka needs a place in Manhattan. She can't protect Rebecca That sounds like a good idea. Yeah, so I'm playing around with these awesome glasses Look good, and I do have a battery built into the 3d printed case And unfortunately just like everything else right before the show and tell when I was putting it together I broke the wire off the battery. Yeah, that's right So, you know, it's powered up with a cord but the 3d printed case it just slides right over the I just hold it up a little more. It just slides right over the the arm Found plug it. It just slides right under the arm, and it works really good All right, kind of cool. So now we can Custom design custom light up Designs, how did you cut up the designs circuit Python? Did you use the new sprite editor tool or what? Yeah, I used it was a while not the new one. I used an old one that I used Years ago not years ago, but probably a year ago with the matrix portal And it was just a sort of tour you guys had on your site, and I followed it and found that I think it was like a sprite or something in it. Oh Cool Good. It was pretty cool. The future is bright. Thanks Kevin for it's gonna be perfect for all Hallows Eve Yes coming soon It's also safe It's like not only is it like cool and fun, but people won't hit you because it'll be like hey, that's a bright shining thing Yeah, exactly. It's multi-use glasses. All right, and then hug report We do those instead of bug reports of data fruit at our weekly meeting But I report everyone a digi key and whoever helped out the key cat folks There was an open source conflict, you know someone left the project registered a domain or whatever But did you key stepped in and I think donated a domain name So thank you anyone who whoever did that there. Thank you Yeah, thank you to whoever did that a digi key. Yeah But thank you to whoever Yeah, all right, cool. Well, thank you so much All right. Take care. Thanks guys. All right next up. You wanna go to Scott's. Yeah, we're gonna go to Scott's computer Scott is gonna do the ultimate demo Hello Or not so I've been working on the Raspberry Pi. Let me Basically what this is is this is the repel from circuit Python on a Raspberry Pi for compute module and so I can do like one plus one and I can do print a Little world. This is this is what didn't work last week the print Well, you're you got print gone How to do that and then Phil just challenged me in our internal meeting before this like it would be cool If you could blink so let me switch the camera you can see that I actually was just I just had it running But I'll switch the camera so you can see it. I like the true false true false You're like, okay, wait, did it really work? Did it really work back forth? Yeah. Yeah, so you should be able to see the hover cam Yeah, I'm gonna zoom in on this. Do you want me to add your screen to you? I Mean I should I kind of showed it already. Yeah, okay. This is more exciting I'm hitting up in the repel to do the for loop. Yeah, you did it. Yeah This is the most advanced overpowered form of blink. That's impressive Well, we're 20. It's like even just digital. Yeah, like we have you know, bipping. I know you could actually start connecting to sensors and devices Even without bus IO support. Mm-hmm. Yeah, so I had to add the digital IO support because I'm using bus IO you are As how I'm interacting right now I've set up the debug you are here and I'm using that USB to serial converter that you see Right here. This is the board eyes designed for debugging the Raspberry Pi That's available in Osh Park if anybody says they need this but I added the four blinky LEDs on there For exactly this sort of test perfect All right looking good Making slow city progress slow and steady learning a ton. Yeah, you're like learning computer architecture backwards Yeah, yeah, okay. Cool. All right. Thanks. Got more next week. I'm sure Next up paint your dragon In the blinky. Yeah, I'm really looking forward to that that circuit Python on on pi stuff is I'm excited for that. Yeah. I'm not seeing ahead. Yeah Um, so anyway, you know, we have the guide live for the the highlights Glasses and I've been sneaking in there and adding new code to the guide as as we go. So a few days ago added a fire fire effect Close but no, no, no looks good It looks better, but There's an old demo scene fire effect on the LEDs and all of most of these I should say are both Arduino and circuit Python So whatever you're more more comfortable with And then the blinky eyes, you know, the Geneva conventions require that anything we do with pixels We have to put blinky eyes on it. Yeah, I mean, this is actually part of your Like bail requirements like when we when we got you out of monster jail. Yeah They're like, you know, we're gonna before we tag you and release you back to the wild. You have to develop eyes. Yeah But I can't I can't keep sneaking in and writing these like forever. So what I did there's one more that I did and It was based on a prior project for one of the LED matrices where you can use a BMP image It's like a sprite sheet and just draw the animation. And so this one circuit Python only But there's no code to do the animation you just draw a picture You know like like flip book style animation and you just file on there and and it goes Oh, I like that. I wanted to look for like, you know, the macro pad and like the matrix portal where people can Maybe commit and share their own designs. Yeah, exactly. This is just running the the super Basic example. So I'm hoping like some some artistic people can make some Yeah, I love how we did this design. I love that like it's round and then there's the grid. It's cool It's a cool design. Yeah. Well, the round was was your your playing because we've all seen the LED shutter shades That's been done. But yeah having the the goggle effect was a nice. I love I love LEDs in circles. I don't know Never enough. It looks like it's in motion So that's all live in the guide right now. Oh, check it out. If you got the if you got glasses There's the code. All right. So be always bringing the blank Uh, thank you. Well, thank you fell my mind. Let's go to Nampadra. Hey Nampadra. What's going on? Hey guys Hey, so this week we got another Lego project. So, uh, phil had a really good idea of showing off the wireless LEDs with Gauntlet. So here's all of the different colors that it comes with comes with like the kit comes with like 10 LEDs So when I tried to insert these into the small two by one space Of course it didn't fit so we had to 3d print a custom little brick for it So we have two different versions. Where's my camera at this one? So we have them where it can fit two different ones and you can see what the distance on these are And then we have one that has a cavity for one of them. So it'll fit in most builds. So, uh, we have one that has the Little LED inside there and what's cool about this is I didn't even design this in there Just make your lottery again where it twists to lock in place So yeah, it's going to be bigger sized ones go in there twist and they stay in there So they rattle around and nice little way to have like nice little lane effects for small little one by two or of course, um The uh 3d files are out there. So you can edit all these and make like a one by one or something These LEDs are perfect for this because it's like if you're doing lego You don't want to sit in like hand solder Thin wires are just going to break. It's like you just You might want to explain why they light up because uh, yeah, can you show them? Yeah, how how is it possible that they're lighting up without any wires Yeah, we disconnect the coil on the back So it's this pretty large coil right here this induction coil that when you get bring it closer some plug right now But it'll uh Provide powered the little soft up the wind wind it up a little led that's on there So it's all that is I'm going to plunge that back neat Sorry There you go. Yeah. Yeah, this is I fully expect lego to do something like this like next to it I'm laughing every because you're saying nobody wants to solder little wires. I actually did that in a press project for me Oh, yeah Now you could do it without nobody but you exactly Yeah, this is the smallest I could get it to like the uh, what is it three by two? But yeah, super small Oh, sorry one more now. I'm saying it's I think it's I think it's neat that we show both ways It's like we did it one way and that what that's what made us realize this is the better way Yeah, yeah, so perfect for doing like a building which I think is like, you know 90% of the things that people want to light up like a nice little building or something and Of course, you know halloween christmas coming up and into uh, what? Well, you know, you know, it's kind of neat. Maybe we should do like a gingerbread house That's a good idea modeled certain folks use these little wireless leds Um, uh, we're friends with the folks that tested adam savage They're gonna probably do some stuff soon and uh, we'll see I think model makers will we'll have a lot of fun with this Just don't snap those fingers because no, I don't know which half of the population's gonna go I have suggestions, but um I'll keep those to myself Yeah, so we get an extra one of these uh, well, you'll see one show up in the office for everyone to go and play around with I hope they make, uh, really cool hand gestures. Not the one we all know Yeah, no, it'll be it'll be peace. It'll be There you go. Yeah, peace too much All right, thanks so much and everyone Don't forget to tune in on Wednesdays to know federal show 3d hangouts where you can learn how to make all this stuff and more Okay Liz What is happening? Liz? How's it going? Um, so I've been working on uh, Disconnected a co2 data logger Um, and I just kind of wanted to show um the kind of evolution of the case I've been working on. Um Okay, first it started out kind of small um, because it's just going to be the feather and the sensor, uh, but then um You folks, so you guys should adding in the eight a logger Feather wing, which is really awesome because then you get the time and that's been really helpful with the graphs um, so then it Grew to this kind of like traditional box. Um, so you can mount the doubler in but then as I was using I was realizing I was going to be a pain for folks and also me Because you have to get the sd card out to get the data So then the new version that I'm printing right now It's going to be a double snap bit So I'll have the lid with the sensor on top, but then it'll snap it at the bottom So you can pop out um the doubler To be able to get the sd card to be able to get your data So that will be coming out soon Um, and I have been logging data in public places Where I would not be able to connect to a network to otherwise log it. Um, so that's cool Yeah, I think this is going to be really useful. There's going to be time people like I want to log data But yeah, like the wi-fi is inconsistent or you want to be like on a bicycle And like right around the city and you know measure air quality in the city. That's a popular project too There was an article that said this year is back to school Uh Purchase is a co2 sensor because parents wanted to send their kids to school It's co2 sensors see what the air quality was because you can kind of tell like oh, wow There's a lot of people here and that's not great for you know infectious diseases And uh, I didn't get a chance to write this up I'm gonna still try to wouldn't it be neat if the schools decided to show kids how to build these And that would be like part of like hey everybody we're back and we're going to build like electronics and learn You know python and then this is a useful thing Um Anyways, we'll see how that goes. Maybe that's a future project Yeah, I've been taking on the train too. I take train every day. So that's been uh, that's cool. Yeah Yeah, we had them around here at Adafruit and uh, so she like underground. You know, it's like when you go into tunnels Yeah, and they're supposed to be a carbon dioxide carbon dioxide buildup. Yeah We have these on each floor in Adafruit and and as we had more folks in the office It was just just like reassuring glowing sign that showed how good the air quality is we have this HVAC system And we upgraded to more filters and we have ventilation. We did all this stuff and um, it was really helpful. So All right, thanks for coming by Liz. Good good information is available for people about their air. Okay next It's gonna bill. It's gonna bill Hey guys, how are you back bill? How are you doing? I'm seeing you I'm good. I'm not in my usual place. You probably tell that So, how are you? Good. Good. What's going on? So I have uh, non AT stuff to show you today. So I uh, let me change to my thing. So I actually was able to spend a little bit of time outside of my new day job, which seems to be law school And AT makers and lesson picks and everything else and I got away to our cabin We have a place in North Carolina, which is stunning right now. I can't see if you're sharing it Yeah, I'm sharing the screen good so um But one of the things I'm doing now is I'm studying there Which is a great place to study, but it's not really what I want to be doing in North Carolina I want to goof off and play on the land that my neighbor owns Um, and it's great. We have one of these side-by-sides. I don't know if you guys have ever been on a side-by-side It's a really good safer way to go off-roading before we're in New York. I don't have anything like this Oh, there's plenty. It's a little oh, I was just talking about the trees. We don't have trees like this We have trees and it's beautiful. It's just starting to turn red right now. It's great But I got out there and one of the problems we have is there's simply no Uh, there's no cell service for any of this, right? So this entire area you can go in and you can explore and you'll find like really ancient old equipment like this Which is just super cool Um is laying around on this and this old property But there's no coverage at all in the mountains and so we all use these right So these are gmrs radios Um, this is a one that's actually mounted on the on the the side-by-side Um, and they're great. They get 15 watts. You don't you have to register them But you don't have to be like a ham to use them Um, they cover the entire area and they're wonderful, but they have a huge flaw, which is When you turn off your engine, right? So this is the this is the brand of the model I'm using. It's a mxt 275 or something like that When you turn off your engine and then you turn it back on it doesn't remember that it was on so it doesn't Where it doesn't start up again So the minute you stop and get out and take a picture and get back in and drive away You've lost your radio connection and everybody cannot reach you it happens all the time It's really irritating. So I wanted to fix this. It's the biggest flaw in this entire radio is that one issue and everybody knows it um, so I made a really simple device And I had all spare parts that I needed to do it. So if you look It has one of your ubex down here. So that takes the 12 volts and gives me five It has a trinket m0 It has one of these relay wings which has the circuitry for driving the relay as well And then underneath all this wiring mess. There's actually a little voltage divider And what that lets me do is it lets me take the power always from the battery Because it's always on power from the battery This uses very little current. I probably could make it go to like a deep sleep. I'll work on that But it's really not a big deal And what it does is it watches the accessory line So when you turn it on it it's stays on like you turn on the radio It's on and then when you turn off the ignition It literally just starts counting down and I have it set for about an hour And it'll stay on for an hour afterwards if you start up again It starts counting up again And all it does is it gives you a lag It gives you a lag so that if you stop for a second You're not going to lose your radio connection and it seems like a really small thing But it's an absolutely huge addition to what we're doing up there because we are able to stay in contact Which is huge. Yeah, if you turn on the thing on and off, that's a pain What's that if you had to keep Yeah, and you just forget You'd forget and then when you went when you forgot You were screwed, right? So if you forgot you you were out of contact somebody else has actually had a real issue and They've been trying to get in touch with you because you know, they're four-wheelers on its side or whatever is going on Um, and so it's it's actually a safety thing But it also is something I've wanted to do for a year. I finally got time to do it So and it was made easy. I probably could have done it with a 555. They're probably easier One of the nice things is I did it in circuit python, which means I also can look at it and say, okay Not only do I want the lag I also wanted to look at the voltage And if it's gotten below 12 volts or if it's got below 11 volts, just turn it off then I don't need it to kill my battery, right? And you can add a little bit of logic that changes how it's going to work. So Yeah, the other cool thing is you could uh, depending on how you Um, or what processor or whatever you could also edit the code on the go Yeah, you could and sure and in fact if I had um, if I had a bluetooth on there, I could send out notifications I was thinking about one thing. I was thinking about combining the fact that there's a I have a relay and a ubeck And if I had your can bus, it might actually be really useful on like a car car So I was thinking about putting together a wing that has the basically the circuitry that's in your ubeck Plus a 12 volt relay that works well on 12 volts and throw it onto one All right. Well come back and show us that project soon. I will probably do that. All right. Thanks, bill All right. Thank you. Let's bill Little more did the under the table poking at me, which means I have to move the show faster. So Well, we have five people. Yeah, so we have five people in 10 minutes So um as we call on you just keep it to a minute and a half each Otherwise, I'm gonna uh, she'll keep hitting me underneath the table. Well, you poke me when I'm the one running it I don't I don't recall that. Yeah, okay. Okay. Michael. Uh, what's uh, what's going on minute and a half? Yeah, so I'm actually working on a pretty cool like sculpture art project thing And I'm just integrating some electronics into it. Um, so yeah, let me switch my camera Um, so it's like this weird pyramid thing I'm making. Um Oh, yeah, my camera's laggy. Um, but yeah, I'm gonna add like a printer and LEDs and stuff The final design is gonna look like this Sorry, what was that? It's like really cyberpunk. It's like from the future. This is like futuristic stargate raw guy coming down and Yeah, and then uh, there's like an inside piece as well that Like the outside piece will go over the inside piece and I actually have them printing right now in my Universities are department makerspace right now. So Cool. Uh, it's pretty exciting stuff. Uh, this is like what the file actually looks like This is kind of like how I design things like I just kind of have them laid out as like different pieces And then like figure it out. Uh, and I guess one cool thing So I actually had a fail print, um of the bottom half but the nice thing is like you can Get more accurate measurements out of something like this even if it's not a total loss So you can get a lot of like it's it's a feedback loop. So it's pretty exciting stuff But yeah, I'm gonna have like a I have the time of flight sensor that you guys introduced the other week this this cool little thing and like Like if someone's on the other side of the gallery, they'll be like change colors and then on the screen Which I have the yeah, I'm gonna be using the iSpy screen It'll be like wave for a fortune and I hope to have it like print off a fortune with the um This cool thermal printer thing which I finally got it working I took a bit to figure out how to get it working. Well, you learned a lot Um, there's a secret section on our website, uh, adafruit.com slash the big build And uh, there's an artist I really like that does circuit board Art that reminds me a little bit of what you're working on. So check it out adafruit.com slash the big build This is a gallery of photos and stuff, but no one knows about it. I'll take a look at it. Thanks. Now everyone does Thanks, michael. All right next next up rick. Keep it to a minute and a half. Take it away. Yeah Anyway, um, finally got my uh first github share up. Uh, it's under rick mogul at github um our our mogul anyway Um, let me share my screen. Well, if you think this can just see. Yeah, I can see that. All right, so get your This controls my hvac system plenty much earlier It's uh, and logs what's what it's doing. I've got a Circuit that uh reads what it's doing and then I got relays that control a humidifier A duct attached to the humidifier a damper and a damper to my room downstairs So that I can keep it from getting too cold down here in the winter in the summer. Yay Because I've got two since uh two um an upstairs a middle floor and a downstairs The upstairs middle floor are much bigger. What the size of air conditioner I have You can't run just the downstairs on it wouldn't work Yeah, so I have to tap into one of the other and this one tells me when one's running If I need heating it'll open it up if I need cooling it'll open up or if I don't it'll shut it Yeah Yeah It's a it's interesting. It's like heating and cooling of houses. So many houses are built so long ago It's like they didn't have any intelligent control. So it's like you heat up the whole house or you cool the whole house The way you want it to that's the problem. I'm freezing 20 something years. I was in air conditioning So I know a lot about it. Yeah, we've got a lot of improvement. It's so much better now Yeah, we're just getting to that when I left it and retired But now it's a different story and um Like I said, I've got that if let's see if I share my screen here real quick I can show you as long as you can do it in like 10 seconds because uh, oh, well never mind Yeah GitHub rr vogel But Come back next week because uh, there's lots of people that are trying to do the same projects that you are Yeah, I don't see a lot of it on your site and I figured I might be able to help Yeah, yeah, I know people want inspiration and like I'll be back next week. Yeah Whoever's there, I'll be I'll be back with him. All right. You're an expert. Thank you, rick Okay, we're gonna go to andy then chris then mark. So y'all got to keep it to just like a minute and half Go go go andy Move the camera Round pcb. All right. So I came in About a month ago showed you this. I don't remember. It's a fridge magnet. You can Uh adjust the probabilities and spin the wheel to help make decisions I made some changes. I uh Changed the triple a batteries instead of a lipo battery and I Spawn a new board and so this is the new wheel to side As I know it is touch sensitive along the side And then got the new I got a kale switch low profile kale switch from ate a fruit and Now it's yeah new silk screen curious it's uh Got powered by batteries on the back. That's works. Yeah. All right. Well, thank you so much andy That was an easy decision. Yeah Up chris and then we're gonna go to our chris. Take it away I've been on the show a few times before showing Things I build with art canvases as a Have an enclosure or substrate for the computer parts. This one has a fun house Um, I'm going to try to share my screen really quickly And uh, so what I wanted to show is earlier this year. I started Kind of a blog on sub stack called computers on canvas. It's compucanvis.substack.com And I'm using it just to post I'm kind of like show your work as I go on these projects And so there's a lot of posts I started in in march. I think I'll just show a couple I got the led glasses And I've also recently been Michael's the art store started to carry these round canvases and they also have oval canvases And so this is kind of a mock-up of something I was thinking of doing with the 3d glasses Um, and then here's the the one that you saw on the wall next to me Um, you know the write-up on that and it uses the fun house and a couple of the neo keys and some keycaps that I found on etsy um And uh, and yeah, so people can check it out if you're interested in seeing that I like putting it in the chat and great stuff. We always uh, you know tell folks like document what you're doing um, and have it somewhere and then uh, I like your combination of The round canvas because that means someone can paint the background. They don't have no electronics They could just paint the canvas and then they can work with someone who's doing I've been really enjoying using pla instead of paint So I've been printing a lot of parts like the sky and this one behind me is is you know all those Interesting. Yeah All right chris. Well, thanks for coming by and dropped that link in the chats and uh, Maybe some folks will subscribe to your newsletter. Thank you. All right. Thank you christy last about leaves. It's mark place out I saw this in the thumbnail here. Yay yeah, so I picked up a pair of these glasses last week and Uh, one thing that right away. I noticed you couldn't do on circuit python was the text You guys had it on do we know? um So I decided to let's see if we can get it going For the smaller text if you actually take just a three by five it displays all right But then I tried to scale it up to what paint your dragon did with uh, actually making the canvas bigger than down sampling it to get a better look So after a while it does work the only problem with this is It's a lot slower So I've learned something on the speed and Now I've sort of been poking around to see is this something that can fit in the core and how would it Uh work with air But yeah, so far It's uh looking blank. At least some some progress on it. Yeah, I like the cool like the dithering effect It like the like, you know, it looks like it's like swirling. It's kind of like an interesting Yeah, and when it goes quicker and Arduino, I like that effect better because your your brain can't I guess keep up with it quite the same. Yeah, when it's at about three frames a second right now It's a little bit more obvious, but uh So it'll you know, well, we'll figure something out Yeah, I was modifying the python uh frame buffer. So there is the frame buffer for the rgb matrix in the core So it likely can hook into there somehow but I just This is where I got up to right before the show so right on we'll drop some links in the chat I think some folks will want to poke at this too if you want a hand as well Yeah, I was talking about it in the circuit python dev. So for sure and I'll Hopefully in the next day or two upload the test code that I've got All right. Well, thanks for coming by mark. You're always doing cool stuff with our stuff that we don't expect And that's exactly the point. So all right. Well, we'll see everybody and we'll see you probably next week Thanks. All right. Thanks mark. Thanks everybody. Thanks. Come by finish right on time. Yeah, exactly on time We'll see everybody on ask an engineer and we'll see everybody next week Same time the same place every wednesday 7 30 p.m. Eastern time. Thank you everybody for making this the best half an hour Of our lives every single week That's you and like negative one minute. Yeah, we'll be on