 Ask an engineer everybody and welcome to ask engineer. It's me Lady Aida the engineer With me mr. Lady Aida on camera control. I'm winning the show behind the scenes You've got an exciting show for you night next hour is all about making crafting hacking videoing lighting stuff up tearing stuff down Making things better and more. We've got discounts videos Nudes Not the kind of needs you're thinking of why don't you tell them what's on tonight's show? We'll get right into it. All right on tonight's show the code is swirly 10% off in the age of her store all the way up to 59 p You also get free stuff lady. It'll talk about that Just did some live shows including show and tell we'll talk about that and also a desk of Lady Aida and a great search JP's product pick of the week and we also a little bit of a sneak preview of something JP's working on for JP's workshop We have a job in our jobs board. That's a remote job So I thought I would show this because some of the folks in our community are looking for some remote gigs We have a fun opening for our inner fruit IO Services including whippersnapper. We have some retro tech, which is really neat. It's two-parter Some of you have seen some of the videos we've been posting on social media. We have an ancient new DOS laptop. What is this? Gonna do some advanced manufacturing here in main New York City our fun time lapses and videos We take at the effort factory. We have a 3d printing speed up We have a top secret with some fun hacks and mods that we're doing including an update to my little hacker Hack in our kids toys and we're showing you how to do it too. We got some new products We're gonna answer your questions. We do that over on discord a different IT Slash discord we can join at tens of thousands of us You can ask your questions during the show and also at the end That's when we answer most of them all that and more tonight on you guessed it It's gonna engineer Don't okay. So first up code swirly you get free stuff. I put them in the right order this time Love it. Yeah, love it for us. Okay. So first up. We've got the $99 freebie promo proto half-sized breadboard 149 or more you get the KB 2040 RP 2040 based my controller It's pro micro pinout great for keyboards or other things and got the 80 for black 199 or more free UPS grand shipping in the country United States and Back we have them in stock the circuit playground expresses our favorite development board that has LEDs and buttons It'll speaker and a microphone and IR LED transmission receiving. Wow It's all there. It's solidless and it's great to learn programming in Arduino code or XS discoveries Micro Python circuit Python Or I even make code so many options. So all of our four freebies are available when you buy stuff from a to food calm All right, we do a bunch of live shows and then on Sunday We did from the desk of Lady Aida We did a little bit of a preview for this. We got the McDonald's chicken McNugget Tetris. Yeah Yeah, I mean, yeah, and the DOS laptop will go into DOS laptop in the retro section But what did you talk about and what did you do just lady at a part one this week? Well, first part is yeah, we have a long one because you want we wanted to show all this tear down. Yeah, we didn't see any live tear downs of the Tetris McNugget. Yeah, it's the 40th anniversary 40 or 30th anniversary and this was the 40th anniversary of all China Yeah, is where you could get it from and so we we took it apart and we showed you how it works I mean, it's McNugget. So yeah, it's you know, we got this very inexpensive toy It's I don't know if you came with a Happy Meal or you could buy it and they whatever Came with a nugget box, which I totally tore up incorrectly So it looks like you know a chicken wing that we can hide us so you can see there's the buttons There's left right and then there's down and then there's like fast down. There's Pause power speaker on off and then the big button is for rotate. So you can play Tetris on it It's like a licensed version of Tetris. That's all yeah I always so once in a while, you know, we're walking around. We're talking about electronics We're talking about running a different and we come up with like ideas and stuff like that like one time We're like, oh, we had a word game. We're like, oh, how many how many different variations or the word parlor Yeah, and we all like there's like pizza parlor and there's like funeral parlor It's ice cream parlor and then one of them was fictional books That are books inside of movies and aren't real Yeah, or just books inside of other fiction things we so you know, there's like to never an historian side there And that that book and then there's a lot of neat movies but then there's other ones where it's like wouldn't be great to collect all the logos of Restaurants that have the animal itself trying to sell you to get in like there's always like a pig That's like come on into the big place or like chicken so there's gotta be you know, where am I going this there's gotta be a Collection that someone is keeping track of video game consoles that are shaped like food There's gotta be right. Yeah, there's gotta be other other other foot But it has to be a standalone video game that looks like food Okay, so this is at least one of them. There's other ones. I'm sure there was ones from the little like one-off ones from the the 80s when like Nintendo was doing the little Like little Donkey Kong and stuff like that. There's gotta be other ones that are full-on You could eat it Okay, anyways make nugget Tetris we took it apart and showed like it has a cool zebra elastomer So that was kind of what we chatted about We should this This is a you know post-futuristic DOS laptops went viral like a month ago and I couldn't help myself So I I picked one up. It has an 8088 which is the 8 bit version of the 8086 I thought they were to co-processors, but actually the 8088 is its own thing. It's got 8 bit 8080 bus not a 16-bit 8086 and We're designed in Haifa as part of a partnership between Intel and their new Israeli office. That's interesting. I went about the history So this is a laptop is kind of like a side project from someone they used a Laptop keyboard and maybe it's an off-the-shelf laptop case or maybe it's injection molded. I don't know It's got like that. I support on the backs. You can like plug in stuff. It's got compact flash Which by the way is it uses an 8080 Bus it's an 8-bit bus So it's a compact flash is actually kind of perfect because it it mimics the same interfaces old disc drives It's got a USB. I've got it show USB port the USB key plugged in, but it's only a USB host For sorry, it's a USB host, but it's only for mass storage So you can like use it to transfer files easier because there's no disc drive although I try to use be disc drivers and work either it's kind of a bummer and then It was in the DOS has some games plugged in already I tried Tetris because I was a Tetris kick and there's also you know apparently you can like change the backlight color But it's like it's using all these old stock chips from like the 90s. I checked the day codes. They're the real thing. It's very cool definitely like weird Weird future past retro future very retro future It's something like a time traveler needs to like Fixed a nuclear reactor and there's no more DOS computers have to go back in time or something Yeah, one thing I was like I could say doom. I think you need a 386 to run but windows I didn't really windows 3 1 ran on 8088 look it was You know ran as a DOS program, but you could it's installed on it. So I ran it and I was like, oh, wow You could I'm just gonna go back to this for a second There's got to be a burger time handheld from the 80s where it's like in the shape of a burger, right? Because there was all these like remember touch tone phones are in every shit It's gotta be a little like yeah, anyways, okay We also do the great search with digikey where lady user power of engineering to help you find things on digikey.com What were you looking for this week big nuggets now? Um, I was looking for well, you know check it apart and of course the main chip processor It's like some wrong blob because they made literally a half million of these so instead of You know trying to Decapsulate or whatever I look for the piezo speaker So the the Tetris game plays a little Tetris that that that that that that that that that that that that that that that that that in the background And these is a piezo speaker. So I wanted to show how you can get very low-cost sound effects out of your Design a lot of like multimeters use piezo discs video games alarm clocks, etc Use piezo discs previously on a great search. We had done magnetic buzzers So talk about the difference between the two and how you would drive them They're not they're not driven the same way and they don't have the same Loudness or resonance or size or material processing techniques. He's one of the other I put in the chat the burger time handheld from like 1980 something is not burger shaped missed opportunity really should have been Darn, but on Tuesdays. We do JP's product pick of the week. That's where we have a live Discount code. You don't have to enter anything. It's just whatever product JP showing off here is this week's highlight The A&O rotary encoder breakout board with Stem aqt running to a cutie pie and then that's off to USB what I have it doing is sending USB HID key shortcuts, which can be used to work with my editor. I can Do some scrolling through as I try to find that exact point one on where I want to make an edit Let's say I can press the center to play I can Left-click multiple times to go fast reverse. I can go fast Forward like so if I find a spot that I want to place an edit. Let's say I want to set the end point here I'm just pressing up on my nav wheel And scroll over here and press down to get the out point It is the A&O rotary navigation encoder with I square C over Stem aqt And don't forget on Thursdays you can watch a piece workshop Here's a little bit of a preview. This is a game controller that we modded was a roulette thing, but now it's gonna just Click things Okay, then on Fridays at 2 p.m. Pacific 3 p.m. Sorry 5 p.m. Eastern. There's a deep dives with Tim We've got a job from the job for one show So if you want to check out the latest job opening day if we're re-opening our jobs board for the world We just had to take down the WordPress site that was just becoming too hard to maintain With all the different things it was doing and so you do that manually another Yeah, so now that's just we have an easier way to get these up. So this is a from our jobs board So oh interesting. Oh Let me that's behind the scene you can't show people behind the curtain. Yeah, so sorry everybody There's a weird thing with our screen sharing. I could fix it though, and I can usually fix it like Let's let's go back to this. Okay. Yeah. Yeah, sorry about that happens once at all So if you go to Adafruit comm slash careers, you can see some of the openings we have but the newest one And this is the only remote one we have at the moment You can see this it is embedded systems development see right here If you want to read about this this is With Adafruit IO, it's all the things that we do with Whipper snapper and more we're looking for Library work we want to adapt the Arduino libraries to have them work with our low-code no-code platform So if this is something that you'd want to do check it out We have all the things that we're looking for the rate you can be remote Please please please Check it out. If you want to join the team and do some cool stuff. That's how we meet a lot of people Okay, let's go to some retro Okay, the first part of retro tech this week We're gonna show the little like one minute video of the DOS computer And then we'll we'll step through and lady to get to tell you about some of the interesting pieces And later was this this is a laptop with an 8088 86 processor inside It takes about a minute to boot So let's let it boot while we take a look what's going on here So we've got like a 800 by 480 display here. It's an active tft Well, that's a little damn. There's a hack for updating it for brightness. It's hi NCS I got the version with the opal 3 Yamaha chip. So I'll find some software that uses this cool like sound card Over here, there's a slot for an 8087 floating-point unit And then there's a USB port the USB port goes through a CH3 47 USB to 8080 Parallel interface. So this has a 512 megabyte SD card and that does actually show up on the disk drive so I was able to transfer some files over and Yeah, I've got like a little running DOS machine. It's really cute Okay, so we took some really nice photos. You can see this kind of translucent Front and then these are those, you know older components that you're talking about. Yeah, it's just like I don't remember what all these are But like some of them are like the 8087 is an FPU that you can get and then over here There's this like Yamaha OPL. I guess this is a soundboard. I'm assuming or lucky it has little musical notes So it's like an audio or MIDI MIDI generator By default it just beeps where it doesn't have like any way to make musical tones. So Yeah, interesting stuff you can see the keyboard obviously the monitor keyboard has like the windows will go on it And then here's the bottom. This is where yeah, this is like the graphical system and it has some text I can't you know call off time I have but it's like the VGA generator and I think like the clock the RTC all that stuff is Is on the bottom there and then there's a big battery on the right the lower right. That's a four amp hour Lithium battery and this thing it's not meant to run on a battery. So that at four amp hour batteries is pretty chunky It doesn't I think it runs for like a half an hour Yeah, it is close book 8088 and then we decided to toss it on here to Show off it's cool. It's very sharp square glory. Yeah All right, and that is rich for this week All right, Python on her more time this week's gonna be a little bit different because You know first up you can check the newsletter and See what we have last week. We did kind of the breaking news recap of the blue tooth arrives for the pico W We'll see how long it's gonna take for us to do some stuff with circuit Python with that And you can go through and check out all the new stories testing the performance of SPI based LCG displays and spay over circuit Python All the news around the web all of the interviews all of the videos all the things that make this a giant community go but Adafruit was in the latest Hackspace magazine and yeah, it'll get to what was in there in just a moment Because there was also some things about 3d printing and I've had this on my list to talk about a little bit of 3d printing Open-source, so I'm gonna do a two-fer So what we were in if you you can tell intact space you could subscribe a couple things The feather rp2040 rfm 95 Laura was featured in there Think it got either like a 9 out of 10 or 10 out of 10 10 out of 10 Yeah, and so this is of course runs circuit Python and then we also got a 10 out of 10 for the other stuff that work and There's two versions the Laura and the rfm. I think I guess the Laura Yeah, the Laura got 10 out of 10 or maybe got Oh, no, so that's the witty pie. Yeah, so I don't know We got one either 9 out of 10 or 10 out of 10 Maybe it's they could reviewed each one of them because they're they look very similar. Yeah. Anyways, I praise so Thank you. And this is one of the things that of course But what I want to talk about this week is since on the cover was 3d printing Prusa Here's the video that just came out and I was tagged on this. This is from Tom's 3d And if you look really close this kind of video is kind of funny So the title of the video is open source isn't sustainable anymore and he's in he's in a church with a open source Hardware logo, okay, which by the way nice logo based on yeah So I did the there's a logo that I designed that was got turned into the OSI logo This this one and then someone made an open source hardware logo down the road. So when I see this, I'm like, oh, yeah but anyways the The thing that's happening right now because this has happened multiple times I feel like we're in like the fifth iteration of the matrix is every few years a 3d printing company is like I don't like this or that so therefore it's open source. So all these open source Printing folks are blaming open source on things. They're saying, oh, there's clones We don't want to do open source anymore. What is it? What happened recently that makes it unsustainable? Why was it sustainable until this year? So the the where this is coming from to is the Prusa folks Tons of open source hardware known for doing open source. I think Prusa has a tattoo of like the open source logo. Well, you don't I make maybe Yeah, the sick ass canther and the Article that came out was the state of open source 3d printing in 2023 and basically you could go and read the article, but you have to find it in there because this is this is the thing They're not releasing the files. So they're not they're not doing open source hardware right now And that's fine. Please don't if you don't like it. Don't do it And they want to have a discussion With youtube personality journalists other 3d printing and open source hardware companies They want to talk to folks. I actually disagree. I don't think they do want to talk to folks because I emailed them No, they don't they don't um, we we have the most certified open source hardware Are you we youtube youtube personalities though? Yeah, I think we check all the boxes I am not worried But we have a very different opinion which is it's not open source that's messing up your business It's not there's other things like people coming in and innovating and making lower costs things with more features So again, this is a repeat of things that's happened in the past So i'm just going to send a link to this segment this repeat, but it rhymes Yeah repeats And so it is a little so my my thing though is and what I sent to the prusa folks is hey, look Cool, don't do open source whatever, but if you're not going to do open source on the page right now open Oh, sorry original prusa mk4 3d printer when you when you look at the the product page. It says open source It opens our heart. Well, yeah, I mean like what does that mean? Okay? And so you should explain what that means slicer was based on something and they forked it And now it's like prusa slicer. They're the rep rap was open source And other people built on it and I just noticed this Arrival it's like, oh, we have a business now And now we don't want to do open source. I think I think look I don't know the detail. I'm not I'm not a youtube personality, but I think technically I think that what happens and this happens This seems to happen a lot again. I'm not privy to the internals of their company. So I could be totally wrong But I think everything is totally hunky dory love open source love open source hardware When things are going up up up We're like Barring from these designs were licensed, you know, we use a license and everything's cool and it's all working out Um, and we're using this slicer coder We're like this motor driver and everything is cool and you love open source and then You start to see drops in revenue and then when you see a drop in revenue And I know what this is like you get a little freaky because you're like Like I'm something I'm losing something and I think the first thing To go is like well I'm you know, you're looking at who is Ripping you off or cloning or borrowing or whatever and you suddenly all gets mixed up together And you get angry because you're like I'm doing all this work And all of y'all are just like you're not contributing at all and this happened with um chris anderson This happened. Yeah, I might have got the wrong printer. But anyways, they're not opening source this the if I got the printer wrong Um, it's it's the it might be the excel, but anyways, they're not opening sourcing They want a new type of license. Yeah, yeah um I mean this I mean I remember this came up and they're like There's some other board and somebody was like you didn't release this board. I I don't know the details I will say I don't know the detail. I do not keep track of 3d printing But I think that this it comes when there's like a little there's there's a point in the business where You get really frustrated because somebody is undercutting you They're taking your work. They're cloning it and they're not contributing and it totally sucks Like I don't want I'm absolutely not going to say it doesn't suck and like it'll get thicker skin it absolutely blows and In some way people's reaction is to close and that and that's fine. I actually don't Like I remember like this happened with make-a-bot and like b was like yeah, I'm gonna close source and I was like cool like Yeah, I'm gonna I'm just gonna I'm gonna go through so anyways if I got the page wrong the thing that I've seen happen is Um, the you the word open source is still used over and over After companies say, oh, we don't want to do a bit of source anymore because of cloners Oh, we don't want to do this and it's kind of the same story in there like there's no protection It's like well, there's trademarks. There's patents. There's copyright Um, there's no such thing as a permanent monopoly on things. You have to continue to do Easier to use lower cost better quality more feature things. So, um uh, thea, uh, who's on the python foundation board and then also on the Opus source hardware board wrote a really good article and um, I sent a note I'm like, hey, I emailed prusa because I I assumed they'd want to talk to us because they said they want to talk to People doing open source hardware again. I actually don't think they do. I think they're like, oh, we just Come on everybody. Let's discuss if it's anybody who disagrees with What the article is which is like we we want to have a new license Um, the thing that's hard to to nail down when people say that is like What would this license actually protect that already isn't out there like a patent trademark copyright? Here's the thing Hardware isn't actually protectable. Anyways, like the licenses mean nothing. So it's only your intent And for, you know, 50 bucks I can send any pcb to a reverse engineering board house and say I want you to like desolder all the components and give me the schematic and a week later They send you the schematic like this is a very common thing that people do and it doesn't matter whether I have the official schematic The other thing is they like they could start filing off the chips. But that's kind of weird The other thing it kind of turns into a twitter fight and there's sock pup accounts people are dunking on each other Um, you know, there's people who don't think we do open source hardware They're like, oh like lady aida uses windows She took an elevator that has closed source firmware like this is real emails that we've received um, and so now to give arduino credit they used to have um on their Getting started. What is arduino? They used to say All boards are completely open source and powering users to build them independently eventually adapt them to their particular needs The software too has open source. It's growing through the Contributions of users worldwide. Okay, they removed that Because they don't do open source hardware and open source software for everything they do Correct. That's the right way to do it. They also got funding So I feel like and that was my suggestion to prusa is just like just be clear What's open source and not if you don't want to have open source? There's this weird like let's come up with a mythical license because we kind of had to live through People making up lots of different types of license like oh like it'll be open source after we meet our kickstarter goals It'll be open source after we're profitable It'll be open source after five years like no if you don't want to do open source Don't do open source. Keep it closed and open later um And the whole will be open sourced always is yeah, and like we're gonna get eventually someone's gonna tag us on this I'm just gonna send this video. It's like please don't call it open source It's a little annoying and weird when you continue to call something open source after you've already decided Yeah, you don't want to do it. Um, but here is kind of a fun, uh, little travel back in history here Here is a quote from you lemur A different founder lemur freed doesn't find much value in arguing about who is right in the clone wars Oh, really? There's debate about open source hardware. I'm going to keep shipping open source hardware while you all argue about it What's the title of this article? Well, let's see what year it is Oh august 24th 2012 Like over 10 years 10 years ago 10 years ago and the title of the article is can open source hardware companies survive clones And it's about so this is yeah printer. So this is the same exact story. Some of the actors have changed You know keep doing spider-man movies over and over Um, but I wanted to just do this one little like hey, you know, we we understand this We're not going to get in a twitter fight and try to totally do no I by the way, I don't know and I don't care and it doesn't matter and I'm not and by the way This is why I don't make 3d printers. This is absolutely not my interest. Yeah, um go to town everybody but here And and I and I sympathize with every party, you know, like And and I even sympathize with people. I guess um now me who are like, hey, I tried but none of y'all care Yeah, like everyone hates barringer, but you keep buying barringer. I guess. Yeah So to summarize my my gripe because I do have a gripe about this is Okay, you all don't want to do open source hardware anymore. You want to do closers great Don't blame open source though. You're blaming like these these like clickbait Titles open sources and sustainable anymore. Yeah, it is maybe not for you. Maybe you don't want to do it But don't don't throw open source under the bus. That's not The problem specifically because this keeps coming out with prusa. That's open source is not prusa's problems Not the problem. In fact, they got here with open source. What are they going to do? Like rewrite every bit of open source software because they don't believe in open source anymore. Of course not Of course not. So guys, that's the two for for this week Well, uh speaking of open source hardware lady, uh, and also every week every week every week on the show We're like, we're gonna we're committed to doing open source one thing. You don't have to worry about adafruit We're not gonna rug pull and be like, you know, guys, there's a chip shortage and things are tough now And there's someone who's making something that looks like our thing. We don't like that We don't do that For a slightly different reason and and and I don't know. I mean like it's working out Um, it's not for everybody. It's not for everybody. I would I would but I would say that Your business and your product and whether it's open source. There are kind of orthogonal things. So I don't know Yeah, I mean, I don't I hope I never goes. I mean, I hope I don't close source because I I have this 16 year old me that I'm constantly like talking to and she wants to do open source hardware So yeah, we're gonna do open source forever the end. Um, all right What's the guides this week guides this week? All right. So we've got update for the pico dvi Um, Arduino library You can now read from the flash memory and you might be able to write the flash memory By pausing and restarting the dvi The pico dvi core philby worked on it and did like all sorts of like stuff in ram because The rp20 40 is weird in that you can store data and run your program from the same Chip and so it can get kind of funky. Um, if you're doing stuff in interrupts or stuff that's using the pios or Overclocking or whatnot. Anyways, you got to kind of working. Check it out if you want to um play stuff from An uh internal memory while also displaying to dvi output We've also got an update to the esp 32 s2 feather guide. This product got maxified Uh, the lc 709203 Um, lipoly monitor that we used to use got discontinued We revised all of our boards to use the max 17 048 This guide is now updated and has new code to walk you out. Thank you. Liz and catney for collaborating catney got a guide On i think two weeks ago's new product the i2s amplifier bff Uh easy way to add high quality audio to a little project Uh works with the rp20 40 The esp 32 series all of them and the nr 52 840 so um, just plug them in the back and Plug in a speaker and uh bob your uncle Eva did a cool project. Um called the laura signal bridge with it's using that 10 out of 10 rfm um 9x rp 20 40 feathers it's all in one designs You don't need to do any soldering and this is kind of neat. There's circuit python Running on the feathers and they can communicate from large distances So you you know like I always had a dream when I was a kid of having like a walkie talkie and my friend Like a couple blocks away would have one we can talk at night now There's cell phones, but at the time it was like we could send messages Now you can do it using signal so you can um have uh data going over a non-internet for um wireless data transfer over many miles It's interesting project though because it uses Feathers as a gateway, but you're sending messages through a computer and it's like um use a little python program And it sends your data to and from signal for you. So it's a point-to-point link Um, I thought it'd be cool. She's kind of interested in like off the grid networks Eva does some cool hacking stuff. We also have a new guide. Okay school school one thing down one chunk one chunk We have a new guide for that last week's uh product the rp 2040 prop maker so cool. It's got all this stuff Stuffed into it new pixel driving accelerometer i2s amplifier servos um power control terminal blocks for plug and play Liz did an amazing job going through this board and and have his code example in arduino and circuit python To get you started and then trevor who's our ios dev Has been learning and experimenting with circuit python and pi leap the app that uses wi-fi or bluetooth To wirelessly code your devices and he made uh a tft digital clock featuring his favorite character blanka Oh, also, uh, sorry, you got the playstation spinner. Yeah from jump right along a lot of guys this week A lot of guys. We played it did these So it's just like it's like how to interface with uh playstation controllers You can uh cut in half a playstation extension cord, which are still made Um, so you don't have to modify the controller itself. You just plug it in and you can interface with it um, and you just get the get the spinner working with this ps2 library and um Aaron did an amazing jellyfish umbrella project. Uh, I love umbrella projects Uh, they're great because they're self waterproofing and they look cool and you have to come with a handle Yeah, so used uh w led with this you can see some of here And the full video is on our youtube channel. This is the youtube short tiktok, you know Short version that you can check it out People having a good time there That's cool All right, let's uh do some factory footage factory footage for the week Let's do some 3d print. All right this week. We uh have a speed up Let's go I'm gonna go off to new products Good swirly lady, you know Let's kick it off. Okay first up first up. We've got uh, yeah, it's like uh led strips These are a non-addressable led strips. You see that MOSFETI in the background. That's an rgb led driver. This is Um an led strip that has analog leds in it. So not a neopixel. You've got four wires. That's plus 12 volts Green ground red ground blue ground If you go back, you'll see the whole strip Changes color all at once It's gonna be less expensive than neopixels and also a lot of people have ready to go 12 volt led drivers Like built into architectural or home or automotive staff And so for those uses, uh, this led strip led strip is handy because you don't need a separate controller No microcontroller required Um, however, one thing to note is that this is a side light led strip So the light comes out the edge not out the front We have a separate one that has the light that comes out the front But for some people like they want to have especially if you want to curve it around An unusual rounded shape This is going to do a much better job because you can of course Edge you can attach us to the edge of some wood or laminate or metal And the light will come out in a nice thin strip. So analog rgb led strip. That's right angle output Next up dental tools. No, no, these are well, I saw this, um, somebody tweeted about this I was like, oh, these are really good idea. So whenever you're if only needed these multiple times in our lives it's kind of a costly tool in allen wrench and um A normal a normal driver. So you get ph1 ph2 ph3 and like I think you know six by point five millimeter Um flathead, you know, they could actually came with more and I was like only these two were really useful So we're talking these. Um, they're hard steel and their magnetic tip And I'll show them the scale so you can see On the overhead We'll add it we added a demo, but it didn't came in afterwards. Yeah Um, so what's nice about these is that if you are Uh working on something where you have to get into like, you know an unusual gap There's and you don't want to take apart the whole thing like you've done that You're like, oh, no, I forgot one thing. I don't want to take apart the whole Uh robot or whatever you can get in there and you can wrench it on one thing to note, obviously These are not hex wrenches and hex slash allen wrenches are designed for torque from the side whereas um flathead might not be too bad, but especially Phillips is not going to be amazingly good at getting torque coming from the side. You have to really press this in Um, so you don't strip the head of the screw. So it's not for high torque situations But it could be good if you just want to get something kind of finger tight Um, this would work uh fairly well. So I like these. They do look like dental tools, but um, I like you can get You know, and I think I wrote in the text description I think it's a little bit more than a half an inch of clearance. Um, you can get in there and open up a screw It's kind of nice. It's got magnetic tips and uh knurled grip Uh Okay, next up we got big nudes Um by request uh people can you carry the 600 and one meter version of these nudes? So we do we have the 1.2 meter and the I think this is the That's the 1.2 meter. Yeah, it looks the same. It's got the edge. I'll show this on the overhead Yeah, maybe that's the 0.6 and then you have to go to this one So we got this one and then 0.6 this one 1.2 meters, which is really long Yeah, um, and keep going show how long it looks between the two it's like 48 inches long And yeah, let me go to see here's another way to look at it too quarter Okay, so this is Hold on I keep wrong plug Okay, so let's go to the overhead That's bright. Yeah, I mean it's for a limited. It's illumination. Yeah, so One thing that's nice about these is that um, even though they're single-sided the light does kind of Come out the other side, uh, kind of nicely and um, you do see the little dots In person, um, but they're pretty smooth and I think um, you know from more than a couple inches away That'll it'll look like just one long strand of light the trade-offs of having, um Um, such long strips 0.6 and 1.2 meters is that you need a higher voltage for these I tried to get them to make them for me in a, uh, lower voltage, but they were kind of like no, you can't do that So the 0.6 needs 12 volts and the 1.2 meter needs, um, 24 volts is quite a bit I'll say that even though I have this just plugged in here right into like this is my, uh, 12 volt power supply It gets very hot. I would put a resistor in to try to current limit these to a half an amp each Um, what, you know, half an amp through 12 volts or half an amp, you know, so six watts Or half an amp through about 24 volts, um, which ends up being like, you know 20 it's a little bit 11.5 volts for the 12 and like 22 volts for the 24 So just basically put a little resistance in there so you're not driving it directly especially since, um You know your 12 volt supply might give you a little bit more than 12 volts Otherwise they do get a little bit warm. Um, I mean, I don't think they're going to get self-damage But uh, they are toasty. So they're expecting either constant current control I'm gonna be adding a little bit of resistance in there just to to slow it down And of course you can PWM dim them that'll also work very well You'll just need a 12 or 24 volt power supply. We do have in the shop adjustable power supplies that go up to 24 and, uh, We have a, this is actually a USB power supply. So it's USB on the other side Um, you can get either USB-C or USB type A. Pick that up and I'm gonna put us on here Can you pick it up and hold it up to just see what happens here? So bright. Yeah, it's neat. Yeah, I mean it's meant for light I mean it should be it's illuminative not like super bright. You're not gonna Light up. It's not a spotlight. It's neat because it's making some of the green screen comes Give it a little halo. That'd be cool. This is a neat effect. That looks good. Yeah Wing light. Yeah Wonder woman's jump rope jump. Yeah. Yeah, the long one especially the jump rope of truth. Okay. Okay. So, uh, Big nudes. Yeah, big news for big news. Okay, uh stars to show we have two products for that this week Okay, please first one is a swirly grid. Um, this is something that scott and jeppeler kind of work to chatting about jeppeler designed the Open scad Version that was 3d printed and then scott came in was like, oh, you know, this could be made out of PCB material And or maybe I said, I don't know and you made it in kikad or kikad Um, and I posted in the product link you can see the script if you want to generate your own and manufacture them Go go to town. This is an aluminum backed PCB and it's got this grid on point two inch spacing and each hole is um Point sorry It's point two inch spacing between things and the holes themselves are a little bit more than um Point one inch in diameter so the the uh Dashes are like point one one inch and the holes are um Point one inch diameter and by having this like instead of just having uh like pegboard dots It means that you can handle You know components that aren't exactly on um point two inch gridding because our feathers for example are point nine by two inches and a lot of our Stem Qt boards are point seven by Um one inch so you see it's like they're on a point one inch grid, but they're not enough on a point two inch grid Or maybe have other dev boards that you want to plug in so it's nice is that um Because you can slide the components around there's always going to be some place that you can Um connect the components. The only thing is I don't that demo is still at the office And also there's numbers because you can you know to specify where to get a specific product Do you want to just hold that underneath the overhead real fast? Yeah, I can hold it. I can also I can also go and grab You can see like yeah, you know if you wanted to mount this Yeah, um, you could find like okay, maybe like this hole And that hole would match or like this This hole and so you would you would go for these two slots? And so you could mount it that way cyber deck thing Yeah, this came in kind of interesting So there's always like some combination of like forward up down slots. You could weave nudes through the holes too That's true You can do all sorts but it was designed for you know feathers and stem Qt specifically because scott was like Oh, I'm trying to do these projects stacking on the we call them stackies where if you order these maybe pick up River feed yeah, and I recommend I'll say we have these two m 2.5 nylon screw sets so m 2.5 is 2.5 millimeters Which means it'll fit very nicely in the 0.1 inch holes and slots and they're nylons. They're non-conductive So these standoffs are great pairing Because you can use that to keep your boards off of the aluminum backing because remember this Aluminum backing is conductive But it's also nice because you can cut it you can bend it you can You know file it very easily would not do that with fr4 Or you can also use it as a um Ground plane if you so wish okay, so interesting design. Good work. Uh, jeff lorne's got the dual star of the show this week precisely related our team our customers is The ice spy key pie Which is a great little rhyme. Um, so this is a board for qt pie and xiao Dev boards little bff It's a best friend that fits on the back And we'll let you plug in almost all of our displays and e-inks now have a tft displays e-ink displays and others Have an ice spy connector and that lets you connect to them without doing a lot of Wiring so if you want to add an oled display, you know, we have the stem and qt port on the front But if you want to add a color tft or an ink um You would want to use one of these because you'll need the spi port and you'll need dc and Chip select and maybe you want to also do the memory select sd card backlight, you know all the pins so Um, I've documented in the product guide what each pin goes to but basically you can get iSquad see an spi through and then tft chip select and data Command control on the rx and tx lines and then um the memory Chip select for e-ink displays if you need it Backlight control if you need an interrupt for touch screen if you need a touch screen chip select and sd Chip select so I can show on the overhead. I got a little demo This is an rp20 40 qt pie And then I've got the bff on the back soldered in and then you see I just plug in this cable very easily This is a slim style, but still you just use one of these low-cost fbc cables and It slots right in And then latches down and then you can press The reset button and uh, it's got spi and I picked this particular board because it's got a touch screen um So the touch screen goes over iSquad see the irq pin is also going through Here so when I touch it gets an interrupt and that knows to update the drawing And then it updates the tft. So it uses almost all the capability of the Um I spy cable But you know no soldering required just just plug in this cable And you're ready to go So almost all of our screens now have this cable connect can make it very easy I need a way to drive the screen. Yeah, it's just like I just wanted to be People were just struggling with like wiring and the breadboards this way you can mount This in one place and have your driver chip elsewhere so that you know the the usb can be connected to You can use a small screen or a large screen Go to town. We'll be doing of course more iSpy displays as well But I had to go through and revise the volunteers something I've been doing for the last year New new new new new new new new new new new new new new new new new Okay, we're gonna do some top secretカ치 smirly Let's answer one quick question because it's top of mind. Yeah. How easily or heart is the starter of this You wouldn't you can't only solder to aluminum. You can like weld to it very poorly Well, if you were um If you had um a steel Screw it would probably connect electrically connect to the aluminum. Okay. Yeah um let's do some uh top secret okay okay first up for top secret we have this dvi thing then we're going to do some updates uh big update with some toy hacking so all right let's go right there's something what is this this is one of our tfp 401 based hdmi tft backpacks you got hdmi input here converts here into a 24 bit ttl display and when you connect to hdmi there's this extra little e prom here this is a five pin 24 l ceo four or something and this contains the edid that's the thing that allows whatever the computer is plugged into this monitor to know that this is an 800 by 480 um uh resolution display and you have to have this edid program so normally what we do is we have like these pins here you see and then we connect to it with this arduino shield and i use this to burn the edid in because the tfp 401 has nothing to do with it's completely separately connected um but this is really annoying because you'd have to like program this and then you'd have to test to make sure the edid got programmed so what we would do is you'd plug it into this uh latte panda which is a windows 10 computer um and then you can see the display is is there five inch version of this backpack wired up and you can see a nice 800 by 480 display now you're wondering why don't you use a raspberry pi the linux caches edids and so you can't use it to test edid burning something that i learned uh kind of by accident one day um but now i've learned my lesson so now i always use windows because i always catch gets the edid fresh but i want to make it even easier and better so now i've got my rp 20 40 father with dbi output and it's got that dbi connection here so instead of using this kind of fragile uh windows computer and a separate forward i have one design you plug it in and you can get to the iSports or htmi so i press the button and it will uh come to the display find the e-prom program verify it and then display a nice colorful fish tank so you know that display is working so all in one edid burning and uh testing so making stuff easier to make here at the ate a fruit shop okay my little backpack first let's do the little video from jebler this is some bear stuff and then we're going to go into the update for the baby einstein um take along take along okay bear it away all right so that is the update on if you want to do some puppetry make your own like chucky cheese animatronics pull the fur off of it make your own little device use chat bt chat gbt generate text then do text on your story write your own story whatever you want to do it's now possible the bears are on ebay for like 20 bucks even less to shipping and then our big update is baby einstein take along music tunes part four in this series okay so we said we're going to put a circuit board on the side of it so you can have your own music and sound okay so um the anisang take along tunes is it's actually like i looked it's like one of the top toys uh for sale on like amazon this is default issue if you have a kid it's pretty default issue so um normally it looks like this and it's got these like beads so i don't know i can play with it um there's a one uh switch that can go from high volume to low volume i don't think it's going to come through because it has noise canceling but it plays like music tunes um and it plays like kind of like your your generic uh classical music um william tell overture type stuff i mean it sounds really good the audio quality is really good but the audio cannot be changed and like the first thing when we got this um when baby eight it was three months was like oh my god i gotta like put my own tunes on it i can't believe it you know you can't customize it um the case is really nice it's got like it's battery pack this switch um it's like really rugged it also has songs she likes now so we wanted to be able to take this with us for a very single serving device so we have the board okay so um what we did in previous um uh yeah on previous versions of uh mitle hackers we took um this apart opened it and this was um the board inside so not surprisingly uh there's an epoxy blob um there is a uh there's you know a couple only there's like three leds one red one green one blue uh kind of lane so you can see the leds here here in here i'm actually kind of surprised that these are two leds and not just like wire bonded on uh i'll go only a couple components and you know there's the the switch um which we have to recycle and like maybe a switch cap converter here and um and a last and more button here so um we took this out we scanned it um and um retraced it out and then we decided okay let's let's try using an esp32 s2 and we like soldered one in and and got it playing with the speaker and verified it can go off the battery um so the next step was we were going to design um a new pcb so um i think like two weeks ago i showed off the design for the new pcb it's um here it is well actually i'll show it here this is what it looks like so um i designed a new circuit board which is the same overlay actually didn't didn't come out too bad has the same holes and cutouts and then the elastomer is in the same location it was great with a scan because i just traced it over has an esp32 s2 a micro sd card so you can store songs on it usb c for loading uh data on and also programming it stem qt in case you want to like add some sensors or something um boost converter so it can run off of these are the two battery connection tabs so when you open it um these tabs over here get soldered directly to the circuit board and then it'll get boosted through to five sorry to 3.3 volts um here that can then drive this esp32 s2 which means you can the reason i went with wi-fi so you can wirelessly program it because once it's in the case it's really hard to get to like you don't want to keep opening it every time you want to change songs or change the code um so you can use our wi-fi workflow to wirelessly program it and of course neopixels so we've got five neopixels almost twice as many leds and their rgb so you can have way more colors um and then this is the replacement hold on i snapped this on give me a little bit so this is the replacement um and it just snaps and i didn't put in the screws uh if you don't actually need the screws and then uh the elastomer here so i'm still working on the battery booster there's something not quite right with the change over i think one of my resistors is the wrong value or maybe i didn't uh check it right but we're gonna have this for sale in the store by the way yeah yeah this is gonna be this is the product we want to make a bunch of circuit board designs so people who want to get into product development people who want to make one of these for someone they know yeah but also just to give you an idea of the types of things that you can do with existing enclosures yeah so it's soldered into the battery tabs here um again the booster's not quite working but it does work over you have me you know that's part of the algorithm process i only got one i got one way of going so so we have a light pattern which you know of course it's going to be way better than the default toy thing yeah we also have so you saw it's running a song that we put on there too it's uh running circuit pythons you can see the activity light so i wish quickly uh did i'm on powered baby toys that's right then halbert quickly did a board definition for me so all of this stuff is working um plugged in sd card and what's really nice is um you know what i wanted to actually use chat gbt to be like hey can you write the code for me and it wasn't completely right but it like i could copy and paste the lines i didn't have to you know write all the code from scratch it was actually my code i just didn't know where it's on the learning system one of the 4 000 guides um so just to show like here uh with the top on and then you know this is the rgb leds lighting up so you notice that the original pcb didn't come out to the left yeah this is running this is the um it's what's it called it's a birdle beats no it's like the chicken dance i think it's jp song or king song somebody i don't know who wrote it and then um the second song is is stored on um the sd card so i'll i'll play it again and then i'll hold it up wait you do have noise canceling going on i'm just coming through so so right now the the button i know the overhead so the button does um play pot you know there's only one button so does play pause it's also used for bootloader mode and of course all uh you can see the leds so the leds can actually do some cool stuff i might have them do like an fft reaction so they react to the music um so the good news is that um you know a lot of the hardware works you know i can upload the i2s amplifier and this is using the built-in speaker which is not too bad um the i2s amplifier works and the sd card works and the esp32 works and the neopixels work and then this is a reset button but i still have a little bit and the last one is good so you have to figure out this boost converter probably do another board spin and then i'll probably be done but so far um it's working really nicely and uh i like it fit if it just right into the all the slots and dots yeah and then uh just you know uh these everyone they're everywhere they're low cost um and uh you know you can hack and mod them you can make it so you have your own single serving music player too yeah um so we thought that was a neat idea for people learn how to do all that stuff how do you learn to be a toy designer um this is a way how do you learn to make all this type of stuff and have your like trunks fit into enclosures so anyways so so interesting stuff so yeah we'll be yeah that is what a cap week's top secret okay don't forget the code is swirly um we had we answered some questions during the show but go ahead and line up any you got um we answered the question about the new product how would you start to people had some really good suggestions in there by the way yeah um if you want to um use full there's a couple links were posted in there um that you can start over that um there was a question in one of the other chats uh and luckily i had a handy link from a previous show is uh are we gonna move the key card we have a link for that yeah so yeah to go watch the link yeah we're gonna do that what's interesting is one example of one of the benefits of doing more stuff with key card is the generative stuff from the product this week that is kind of cool it's like yeah he's like oh i can make any size in any quantity and he's like five by ten and he did yeah and you can programmatically put the numbers uh on there and it does a bunch of alignment so um we'll see it's neat this is pretty neat i mean you all piece maybe the cat could do it too but anyways yeah um okay i think we got to the questions during the show so i think we might i think we might be outie we just i'll just scroll uh i don't know this reference to let's say this on the okay yeah that is oh it is is a jp uh creation street chicken yeah street chain a classic street chain um that's our ship tonight everybody thanks everybody thanks so much for joining us um especially to say behind the scenes and slack helping us out and uh thanks to all of y'all who support open source it got us here don't just discard it i'm gonna open source this toy thing we're opening yeah yeah you know what i like is the two companies that are doing the most certified open source hardware is ate fruit and spark fun and we're just gonna probably keep doing it um and you can go to the osprey certification site and there's thousands there and i'm glad we put it there because it's a signal of our commitment to uh sharing the information to uplift everyone um it was uh we're all here because of someone else and something else so we're gonna keep at it thank you so much don't forget the code is swirly we'll see everybody next week 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