 All right lady, what is this everybody and welcome to show and tell Back live here. It's me Lady Ada. Mr. Lady Ada We're broadcasting from a secret location in downtown Manhattan But it's not about us for the next half an hour. We're going to check in with people from the maker community Ada fruiters and friends and other people who want to come by We're in stream yard. Anybody is welcome to join link is in discord Discord if you want to join in and if you're watching this not live you can come by Every single week some 30 p.m. Eastern time come by. It's March and Josh. You can show cool retro Max stuff all of your projects more. We usually have guests and more this week. We have a lot of Ada fruit folks It's been a while since we've been here hosting So this is really good. Let's start off with Scott because you're the first one on the list right here Yeah, oh You've heard my saga, but I wanted to yeah, well now sharing our pain so we have the IMX RT Which is this cool new chip? It's 500 megahertz or 600 megahertz depending on which version you're looking at it's super fast and I've been working on performance improvements and two days ago, I got it running twice as fast and Now I can't get it running So I have I have a build of circuit python I had the binary of it and I can confirm that the tests run the USB works And the benchmarks run twice as fast, but I don't know why So I made some changes to my code since then and I Can't replicate it like on the metro I have it on the EVK that it runs that fast, but on a metro it doesn't And I think I did load the newer version onto the EVK as well. It was also slow. So Yeah, if anybody's has their interest peaked by how do you figure out what's different between a Binary of circuit python and what you can build on a branch Let me now hit me up on discord. I love some help and some eyeballs to figure out What's making it so much faster Best of luck Yeah, it's tough on this is the yeah, this is the time It's very weird. I like I just ran it again. It's just like Did you restart it? Yeah, I mean this I want to turn it back off Yeah, I Yeah, I have no idea. I have no idea what it is I Can run it over you are and I can run I can run the benchmark over you are or USB and it's it's twice as fast than what I can run over Metro from what I thought was the same code All right, well everyone Well, we'll sweeten the pot. I don't know what the bounty is I'm gonna offer But if you help Scott out and you figure it out you get something cool Maybe some I'm X hardware Okay, maybe a J-Link. Yeah, or maybe all of those things so If you really if you really want to come save the day and get some free cool stuff from for me to for it Go help Scott. All right. That's my discord circuit by the channel. Yeah. Thank you, Scott All right next Jepler what you got going on this way? Oh, so I've been playing with chat GPT and one of the things I did was write a Terminal-based interface to it. So this is running this is running on my local computer But then it connects over the internet to the chat GPT server and I'm just gonna take a wild stab at this But maybe we can solve the problem of Here's a few ways. Yeah, so Scott if you're listening think about GPT is already on this I Don't know Yeah, that's a little far-fetched, but okay, so This was a really fun kind of learning project for me both learning how the chat the open AI API works and like how to stream the result and get the partial results as you go and It means that I can store my conversations on my computer and refer back to them later. Yeah, and Yeah, this package called textual is really neat for creating these terminal-based user interfaces So if you're into that kind of thing Check it out. It works great with Python and I was up and running and doing stuff in just a little while This is up on my github. I'll drop a link to it in the discord. So if you want to try it out I'd really love your feedback. It's open source waiting for that first pull request from somebody who is not me this is so neat because we spent so much time on Python on microcontrollers and Python's really good at text stuff And there is an unending stream of text that you can access now that you know debate aside about what You know chat GPT is You know, sometimes it gives back not great search information, but for summarizing for some like interesting Creative things like write a story It's really fun. And it just reminds me of the few times that we get a little glimpse of when technology is fun again This is don't trust it on facts. Yeah, like like like no, it's like you should use multi-threading. There's no Yeah, it's just nonsense. No, but like a star a Star Trek like Star Wars story. That's super fun Mm-hmm, like it's already you're already like I'm in a fantasy world now I want a computer to like, you know, I wanted to hear a story Okay. Well, very cool. Jeff. Thank you so much. Yeah, see you around Okay Next Trevor what you got going on? Let's see. Oh, you are muted Now, yeah Yeah, all right, so this is what I got going on so I put together a mini weather station using the ESP 32 s2 with TFT display and lipo battery So basically Basically here we are gathering data from open weather maps And you can see that there is like the current Temperature High in the low today and there's a background. I don't know if you see that back there. Yeah, basically This tells you the condition of the day. So like if it's raining, I'll have like a little like a Like a like a cloud with raindrops Background or if it's snowing like yesterday have like a little snowflake and yeah, so that's basically my project I put it on my desk and you know, I don't have to look at my phone during the day I Would be like if you I've seen I've seen folks Take the IOT examples that are really simple But you can do a lot more with for single serving applications at home I remember someone said all I want to know is do I bring an umbrella or not? That's it So if there's an um, so if you need an umbrella it lights up their umbrella stand And that's kind of neat because you and you could do that now with what you have you just be like Oh, if it's only it's raining then then then light up the the neopixel the neopixel string Yeah, so that's a fun idea because that's all they cared about all they care is about umbrella So something terrible must have happened. I forgot my problems, but okay. All right. All right. Thanks What you get going on this week Hi as you've seen in previous Demonstrations, I'd like to restore old IBM machines now I've tended to stay away from the ps2 line which Started out in the late 80s and into the 90s, but I decided to hit my head against a wall and and Make an attempt at it. So this is Model 55 sx it has a 386 sx processor and It has the lovely very heavy Model M keyboard that the people really like and this crummy little VGA display that has a lot of Underscan overscan. Well, it's tiny and there's no actual knobs to adjust for but I was I'm to the internet I made the special disc get to To load the magic codes back on to it and I found that it had a bonus disc get from The once is 93 inside the disk drive. So a bonus there, but um Like what's common with these is there's a Dallas clock chip and it's potted and it has a dead battery in it and I think lemours talked about these before and I've got a little chip to replace it although There's a procedure to use a Dremel and kind of grind into it and put a battery and replace it there so I may take a stab at that too, but um, it just seems that it won't load the configuration Until You have the clock going. So I'll have to do that. Then I can see if this beautiful 60 megabyte Drive, which is not any standard of that's known to man. It's uh ESI so you can't just go out and buy one lots of proprietary parts on these So it's just going to be step by step by step trying to resurrect it And I did find out today That there's a company that makes a micro channel card. You know, it doesn't use the old isa cards that um That has uh IDE Um hard disk interfaces on That would be great because that means you could put a more modern hard disk or they have IDE to sd card or cf card And then you could just boot off a two gigabyte sd card that doesn't cost much of anything these days Two species of computers that were never meant to meet each other in nature welcome to Man's Jurassic IBM computer collection All right. Well, thank you so much and keep coming back and showing this off Sure, and uh, if you follow my twitter that's on the screen there I'll have pointers to my blog and it'll be documented. So other folks that want to do this kind of thing Uh can see how to do it. All right. Thanks so much next up Erin what you got going on this week, Erin? Hey, uh, so this week I have made a pretty cool project. It is a dragon and I got a China's Dragon Corporation from amazon and put a circuit playground Express inside of his mouth with some little fiberfill on there and then I hooked him up to some Code where if I make him dance Dragon lights up. I've got a strip in the pixels that goes down and now of course he's all tangled up with his foot Yeah, we're showing tell because that's what happens. It's work, but This is a pretty simple project. It's oh, there we go. It's um real easy Like it's just a couple of connections with the circuit playground and a couple of zip ties And then I did the code and make code. So I came up with a pretty cool little flame effect Which uh, runs all the way through the length of his body So this is a super cool project easy to do for kids everything like that. Um, and he's Yeah, that is neat. Yeah Outstanding. All right, and I think we're playing the video tonight on ask an engineer. Can't great next work All right. I was inspired by when we went to see the the dragon We went to Chinese New Year in Chinatown and it was amazing and we're like, oh This is gonna give us some ideas and here we are for the next year. Yeah All right Yeah, he's my new friend. Yeah Everyone loves dragons including paint your dragons. All right No I might bring in you and Pedro or just you and then Pedro. No, we got separate projects this week All right. Yeah, so, uh, this was a fun, uh, project idea from lemar I did a star fragment Um, you can find these objects in video games like animal crossing and zelda So this is uh, 3d printed and it's powered by the qt pi esp ESP 32 s2 and it's also got the new pixel bff driver board on there But what's cool about it is that it uses the open media Open media api to know when the sun is rising and when the sun is setting That way the light the new pixels that are inside Will turn on when the sun sets and it turns off when the sun rises. So it's kind of like automating your lamp So, uh, it's it's got two neopixels sticks inside of it and it's all 3d printed without support material and We also have like a 3d printed stand for it too with a little base You can just kind of rest it on there if you want So it sits on your night night stand Nicely, um, but yeah, it's just a fun kind of iot lamp that uh, that kind of takes away the the hassle of having to turn it on and off when uh, when you want so Check it out. It's on the the learn system right now. And uh, yeah, I have another one here If you eat that do you become invincible for like 30 seconds or? Yes Maybe All right. All right. Thanks so much. All right. Cool. Nice work. All right. Pedro, what you get going on? Hey guys, it's sorry I couldn't come on last week. I was stuck in the grid, but Your your disc was at the dry cleaners Yeah, so I think the cool like golden nugget for this project for me Anyway, was just like the running vest thing. I don't know. They made these would have been so cool when we were doing the The fairy wings definitely wouldn't yeah, so it's a running vest that you can put What like water bottles or like? I You can put like a bigger battery in here. There's like your phone Yeah, your phone and all that I I didn't know crap and like the mesh on the back is like excellent for mounting or not You don't even have to sew anything. I'm just using like fishing wire to attach like But of course the main project is the uh, the tron disc which yeah, just help disney announced theirs, uh yesterday And of course, it's not your project. That's why dude the chains the colors are charging you These little chips you get to put in the change the color. It's like come on guys You have to pay money Yeah Every every physical object is turning into a business model or a subscription My sabres are the same way. So it's like, okay You can do that pay that or like just build your own and you can change part of disney plus you can change the color of your It's not funny. Well, I'm glad you're fighting for the users How funny yeah, but yeah the user because it's he could own the desk Are they making like printers with ink or something like it just reminds me They would they would huh, but I think the one cool thing about them is that they uh, they have like bluetooth speakers You can like have a speaker. Oh, it's really So disney does cool stuff. It just gets super weird sometimes when it's like Okay, like to change the color of the physical thing you bought you have to buy this other thing Like for some stuff I can get like oh, maybe sounds or something like maybe music tracks They didn't do Get a licenses in audio, but like Yeah, no no motion activation for five bucks a month. All right But yeah, the the learn guides on build your own. It's easy to print should fit on all printers and yeah You don't have to pay to change your color The name uh, it's it was master computer book. No, what was it was sark? and then after Yeah, and then afterwards every After the original 1980 something and it likes after it was finishing spinning. It was just like an old guy with a typewriter I'm sure there's like some fandom page where it's like they know the exact name of that A character All right next up we're gonna go to we're gonna Do uh, Steve Oh, no, john park. Sorry, then we're gonna get so here's on deck Steve you were right up after jp jp. What'd you get going on? Hey, uh, so I've got a couple things. Uh, if you show my Shared screen. Yes there So I've been working on Updating my little hex pad So this is the pcb I designed in fritzing and made a revision got got a nice working version And I've got the little reverse mount neopixels our low profile chalk switches and a cutie pi rp 2040 down there. It's acting right now as a usb MIDI keyboard you could use it for usb hid and other things And the the key thing is these cool key caps that lemore found first And they're commercially available But we're gonna be working on doing a 3d printable version of them because they're kind of hard to find at the moment And I just finished designing this little case for it that is just kind of a one-piece Case that it screws into from the bottom so that we get a nice Fit I've been updating software. So now when it starts up, it Let's you pick some things So I'm picking first the mode that I'm going to play in so I can play it. Let's say a minor key Then I'm picking the root note So I'll just go with this and then I get a choice here Do I want to play chords or do I want to play single notes? So I'll say we'll play chords And now these are these sort of related musical notes. You can't play any bad keys and they all play their own modal chords inside of that So that's the idea behind it you could use it for anything you want and the code will let you update those Some musical instrument from Logan's run nice Or it's like a keyboard just for that was that the New York Times like the they're oh, yeah spelling bee. Yeah It could be I did the little wordle one this I I'm wondering if it would Be possible. You just have to tell it what keys it's entering or if it's positional. Yeah, it's positional So I don't know it would work, but still For a real fan. I have a love hate relationship for that game actually My secret is when I play it I immediately go for the pan gram and then I quit. I don't yeah Yeah, you're like I'm out of here. You know, sometimes there's more than one pan gram I know and then I'm sad the next day when I find out So my other cool thing that I want to share is this is a really neat story here of a Synthesizer keyboard that I just got and you can see it's got one missing key there that I'm going to replace This is a casio cz 101 real popular Synth from the 80s, which used a somewhat novel synth technique called phase distortion Um And I went and opened it up just to kind of clean it out check things out It's working fine, but I just wanted to get a look around and get ready to replace that key Um, and when I was in there, I don't have it open right now But if you if you go to my overhead, this is the first thing I saw when I When I unscrewed it and opened it up is this note. Whoa So this is the guy that uh, it was the estate sale of this person They owned the keyboard presumably they were the first owner and they Made a modification to it the cz 101 memory expander mod made by gary on this date And then he says see electronic musician magazine july 86 issue page 64 article by scott morgan Um, and I could see it was a really nice clean, uh job of mostly just bodge wires, uh to Allow this modification to work the internet came through with this which is a scan of the article So I now have uh Including this kind of old-fashioned. Oh my goodness Yeah, imagine you're you're trying to figure out what trace to cut by measuring four and one eighth inches And there's a couple more pages here that well, they didn't have you know, how would you take a photo? There was no way to do that I like how like gary commented his code physically He did This is like the best documentation I'm going to print this all on one page double-sided and and put it in there along with it. So the next uh, We should also do Kind of cool what the mod is really about is this is a memory expander card So you could save 16 patches On here and it had 16 internal ones You would buy this and it would allow you to save an additional 16 Except that same card if you bought a more expensive synth from casio Would allow you to save 32 And so this mod lets this keyboard tell this cartridge. Hey, I want to use that second bank That you're hiding from me. So it's all about unlocking a thing you bought Uh And and I don't actually I haven't looked that close. This is like the cap of synthesizers. Yeah, they're like Don't lock me out if I bought this. I want 16 um, and Last thing I'll say is I I did open this up and put a new battery a little coin cell battery in it And I did leave a note Say park and the date I changed the battery. So I think we're starting a trend here We're all going to explore electronics. Yeah, all right. Thanks so much ap and then um, everyone should tune into your shows this week Yes, you should all right All right, next step steve Let's go steve Oh, wow, can you hear me? Yeah, would you get going on? Uh, yeah, I'm so nervous and I never do this. So, uh, it's okay. We don't nobody's watching Nobody's watching Uh, what you get going on steve? I'm trying to find my my yeah, I never do this. Uh, oh there we go Uh, this is my first, uh printed circuit board and I'm hoping that adafruit will like go. Wow. This is a good idea Uh, but it's basically um Six and it's controlled by an arduino Do you have did you have a another camera on or something? Can you hold it out? Maybe? Yeah No, oh, you don't see it No, do you have us you're doing a screen share or something or can you hold it up? Uh, I have a second camera. This is what obs you have to tell it though. It's uh It's not It's harder than the circuit board Yeah, just put if you want to put All right, so you've got printed circuit board. Yeah, there you go. Okay now Do it again because we heard something we heard it. Yeah, so Oh All uh driven with a moss moss fats. So this is the board This is the goal So, you know a maker doesn't really if they want to make a project with solenoids You don't have to do all this breadboarding because it's crazy breadboarding, you know So you got six solenoids and you run it with a arduino And uh, I didn't use delay in the code. So it's all millis. You can control the on and off time That's so if you could make two of these and you you know, you'd have 12 solenoids So, um, I think I just think it's a good idea. Just, you know to cut down on breadboarding It's a good idea. See this is a good idea if you want email me pt at data fruit dot com I can post it up online if people are interested or however you want to get the word out about it Let me know Yeah, who do I email? Uh me pt at data fruit dot com Yeah, piece of peter tees and tom at data fruit dot com Okay, yeah, all right. Thanks for coming by see if you did great and keep coming by that's so cool I love it because I think I feel like it's a little robotic. Yeah, I mean, you could you know, you could like put a little ping pong on the end of the solenoids and shoot ping pong Yeah, if you had a project, we had a lot of solenoids it would you certainly cut down on on how much wiring you'd have to do You could you can put it next to a bunch of bells or Things that make noise when I was down. Yeah, I'm probably gonna put it on a toy piano You know a kid's toy piano. Yeah, if you do that come back and yeah do a little yeah. Yeah, that would be cool Yeah, I'll do something with it. All right. We're lining up our next musical guest already. All right We're gonna go to Sai and then we're gonna go to Dilce and then dj devin if you all could Speed around just a little bit. We had a lot of people tonight. Oh, and then Brandon. It's here too If everyone keeps it's like a minute ish a minute and a half People came in. Yeah, this is a giant show. All right. All right. So what you got? Hi, so yesterday was uh pie day. Um, so to celebrate my day, I designed a board using the rp20 40 microcontroller it has 12 neo pixels and 48 rgb leds The rgb leds actually use the driver That's from the same family as the um loomisul driver that you're using for the led glass And I mounted a brass cut out of pie And it also it also has a pdm microphone and Every time it detects one of three keywords by 3.14 Or irrational it the leds actually change color. Nice. Yeah, um in the interest of time, uh, and Like, you know, I have a background noise going on. I don't want to show a demo. That's fine. We believe you Yeah, we believe you we believe you Yeah, but you know, I published the project on haxter with the video Yeah Yeah, um, if you email me, I can make sure uh and specifically gets it and I'll probably log it up Awesome. All right. Thank you. Thank you so much and thanks for coming by happy. Bye. Happy pie day. Thank you All right next up. We're gonna go to Dolce Is there? Oh We will try to come back to come back to you. All right videos DJ Devin and then Rendon did you do more to got Hello. Well, this is uh bluetooth going to my mail boom box Yes, uh, this is the transmitter side that will go in the mailbox and a distance sensor So this is proof of concept Uh, it's a 50 50 centimeter male So Yeah, and Uh, not the tidiest, but You got a mess Uh, if you remember the dragon mask it kind of reminds me of that. I don't have my face stuffed in it. Yeah Uh, this has um Whoop Yeah, uh, well, there is a tiny little slot here for a magnet, but I put it on the wrong side. So when it closes that Yeah design flaw Uh, so this is running on a feather m4 attached to an rfm module and inside is an rp20 40 pink rare feather Running on the uh, the receiver side That's great some neopixels, uh 20 watt amplifier 10 watt speakers Yes, I did cheat and use the i2s audio out. I know i'm not supposed to Um, oh and this doesn't have an antenna because of desk of lady aida. I figured out I'm using a roga antenna It doesn't even connect So I haven't I haven't adapter. So that Lady aida was the most timely desk lady. There you go Because I'm about to go on vacation and potentially Do a duplicate design of this uh out in the field and knowing that that would have failed Because the antennas aren't connected. Uh, yeah, sometimes Sometimes let's go watching youtube. Sometimes it can work out right watching adafruit pays off. Yeah All right, excellent project. If you post up anywhere online, you know, you don't let me let me now I've already sent it to an okay Okay, we'll get the word out Don't work good night. All right. So we're gonna go to uh, Brandon and then we'll go and see how tilty's video Hey, I just want to say hi, um I was really cool recently you guys posted that you now have a seesaw using the at tiny 1616 Which turns out to be the same chip that I did when I created what I call the act one I wanted to get into sort of doing some teaching this year. And so I created AVR coding 101 which is it as long as you have some c programming experience That's really all you need to get into it It takes you all the way through just doing, you know, general gpio directly In c code without using arduino libraries or anything to control the The little uh, it's right there the at tiny 1616 And this board pretty much has everything you need to to learn through the process So it's got leds and it's got buttons and it's got charlie plexing and it's got a little piezo buzzer And the great thing about the at tiny 1616 you guys have talked about is All you need to program it now. You don't need a special custom programmer. You just need a little serial usb serial adapter Yeah, and so um, I provide all that in the box and it goes out and all the course material and everything else is completely open source and available to people Um, and I've run one group of students through it already So this is uh, it's in my git lab And everybody can find me because if you simply google braden lane you find me everywhere now But you know, like I said, it's got six lessons. It takes you through the entire process It's all open source. It's mit, you know license for everything um And so like I said, I've run one group of students through it already and I've I use that to create the videos Which are supplements to the class So everything is now out there But I thought it was really kind of cool that it kind of piggybacks with anybody who might have been looking to pick up your seesaw And still want to learn how to code it from scratch. This is also Kudos to your documentation. This looks really good Nice Nice work. Well, thank you. Yeah. All right. Well, feel free to post up any links and then uh, drop a note to either myself or um, you can email support or an Word out about some of your upcoming courses and and more cool. I appreciate you guys have a good day Right Hey, how goes So what we have is the evolution of the stack channel, which I showed you last week This is nicknamed sign. Chan It's all I redid the the code in micro python Now instead of just smiling and bopping around it communicates with my home server My home web server and it connects to the wi-fi. So what it's doing right now is It's scanning for all the wi-fi access points near it and the little the smaller screen at the top We'll give you a scrolling list of the names and the security status Of all the wi-fi is around you Right now it's counting down how many days left until defcon and when it does that you'll see the defcon logo spin around And it communicates with my pie hole and it tells you how many ads have been blocked in the last 24 hours And it communicates with twitter and it will tell me if anyone's mentioned my name on twitter All right on And every once in a while it will turn left and right and look around like it's trying to find something And then Yeah, and with a with a battery pack it will work perfectly you can like put it in your pocket and Pocket ward right practically take it out for a walk to different stores in the mall Yeah, and and it does the one thing it's kind of I think it's I added to the original code Is whenever it's doing something it puts an icon in the upper right hand corner So right now you see the wi-fi icon and when it's doing twitter, you'll see the twitter bird And when it's doing uh Pie hole it has the pie hole logo Has a little different face down to Right now it's reading off all the wi-fi access points When they're getting to a little tear All right, outstanding. We'll keep coming back with this robot. It's like watching mystery science theater 3000 for day. Oh, yes I'm sorry. I don't have the wheelchair update mod for you this week. We had some written to a setback But hopefully next week the uh, the wheelchair mods will be back. We're here. All right. Well, thank you so much Thank you. Who raw? Okay, that's our show until we'll start asking engineers a couple minutes later It's all worth it because everyone showed and shared some amazing projects Thank you so much for making this the best half an hour of our week every single week. We'll see everybody Next week and ask an engineer starts as soon as I can press a bunch of buttons. Bye