 Lady what is this everybody and welcome to your 7 30 p.m. Wednesday night show and tell to me lady Ada when he is mr. Lady Ada on camera control and then getting all the guests in a row here on our Show and tell stream. I'm gonna check in with people from around the world on the country in the world all Making crafting hacking soldering coating in their homes, and they're coming by and showing off what they're working on We're gonna start off with David From did you key But we didn't David's much better don't talk We do not we're not allowed to play favorites with the did-to-key friends we have we all we like all of them Yeah, yeah, I know I'm so excited to be here, you know Kevin always gets to come unfortunately He's on vacation this week or fortunately for him, so you're stuck with me, but I have a couple things one thing I actually right now guys I can't tell you just showing me or you showing my screen as well I'm showing your screen. Okay, so could you just show me for a second? Is I just want to just one thing Okay, you know Kevin has always got all the blinkies and everything He's always got everything great, but I wanted to do something special just for today And I've been wanting to do this for a couple years and so you see my little general grievous behind me. Yeah So turn on turn on general grievous Turn on general grievous And there we go. Yeah I've been wanting to do that for so many years. So I'm so excited about that Simple things. Okay channel grievous is now on a lot of cable package plans. Um, okay, you could choose if you want that Awesome. All right. So anyway, we could go back to the screen. I'm sorry about that I have the same phaser by the way. I know exactly. Yeah I love that thing. So, um, anyway, so I wanted just to show a couple things just one thing for actually And that is we are coming out as you know, digikey has always prided ourselves At support maker fairs and other events and we've had our digikey ruler, which is an awesome giveaway We are going to continue with that as a matter of fact, you know, we can we love Selling that we love giving it away at different types of events We are coming out with a special version version of that called the midnight engineering dark version so it's been very cool um And uh, so that look for that in just a little while But one of the things we wanted to do is also create something that may be a little bit more a little bit You know more unique that would provide greater value on an ongoing basis for students for makers hobbyists, uh, even professional engineers So we are creating this digikey innovation handbook and this is going to print this week It'll be available as a pdf on our website and let me just share a little bit of what this looks like So i'm going to go into a slideshow mode And the idea here is that no matter what you would be looking for from electronic standpoint This kind of gives you that information So we've got things like, um, you know, all of yeah all the basics in here So formulas and reference information and but but we go in depth as well So it's it's not just at the highest levels. We've we've got things that go down into the bits and bytes as well So electronic symbols logic gates temperature conversions And then we go into the product portfolio and we call out a to fruit wherever we can obviously So we've got resistors and capacitors and discreet leds and addressable leds and op amps and regulators and diodes and motors I like the pinups for the usb. I'm always looking those out back in the day at make We got pocket refs in and there was specific like make edition It was but it's a it's an older book with like how many quarts of oil will you need to move across the sea? This is like a very good. This is a very good like modern modern version that's like everything it's like ee in a In a book in a bottle and so we've got footprints and pinouts and and how do you create a pcb and you know iot elements and some some stuff where you can see obviously circuit playgrounds and clues and community-based things elements of prototyping board pinouts as well Over there's others and what have you and so the the other thing that we have on here is we've got 120 pages For people to be able to use this to take notes great, so People will be able to leverage this on an ongoing basis and we just think it's going to be great And we can't wait to get put it in the hands of people. So okay Well, I gotta I gotta ask just because uh, I know what people want to know is for did you wish this year? Would people be able to get one of these notebooks? Oh, I'm sure yeah Yeah, I think it's going to be a success that make we did the like makers notebook That didn't have this much stuff in it and people wanted more and more versions and it's this is this is really good. Okay Um, you're sending us one right? I will absolutely sell you send send them to you. I'll send you a bunch. Okay. Yeah, okay All right. Kevin is listening in thanks for thanks for hanging out Kevin. We missed you. Good to see you David And um, I'll I'll say this before you go over the last year. We're now recovering. I know did you keys in recovery mode too? Yeah, thank you Everyone at digikey David is one of the folks who makes the big decisions about doing stuff with theta fruit Thank you for helping us out over the last year and more and we're coming back stronger than ever Um, and I know that there'll be like challenges from part shortages to who knows But thanks for being a good partner and a good friend over the last year, you know, you guys make it so easy It's it's a pleasure to do everything we do with theta fruit So thank you so much for the great technology great community and everything else. We love being a part of it It's only it's only a job if you want to do something else So that's all right. Okay. All right. Bye guys. Thank you David. Thanks. All right this week I'm gonna switch stuff up. We're gonna go to christie young who I haven't seen in a while and then we're gonna go to the rest of our team Chris take this take it away All right, can you hear me? Yeah. Yep. All right So anyway, this is a project that I am It went up on the learning guide last last week about is a little bit under the weather What it is is an iot uh infrared remote and basically what it does is it serves up a web page that you can click on and that will operate your cable or your or your uh Your tv or any kind of different different Things you're on fast forwarding and rewinding and doing different things So there's a little demo video there in the guide but What it consists of we've got a raspberry pi 0w And then this custom board that will think about design And over on the right side, we've got my infrared transmitter and receiver circuit And then this is a qt pi m0 qt pi And what happens is the pi zero Serves the web page And then it communicates with the qt pi to send the infrared signals It's a lot easier to do the pwm precisely And to read the iot or the infrared signals when you want to learn a signal Do it to the qt pi And then it communicates over the urs the rx and the tx lines Now this is kind of an old concept. I used to have one of these that was based on the Arduino u It didn't know it was that embedded linux Or system That essentially had a Arduino Leonardo sitting on top of it But we had some people who were interested in this as an assistive technology device And we said well the unit is it's such old technology It's so expensive We can do better than that and so far, you know, what's a raspberry pi cost 10 bucks and duty price under 10 Private 20 bucks a land. We've got this thing built and it's working just great So now i'm trying to The way it works now is You have to load a special sketch To capture the irc ones and decode them and then manually edit that Into a file for the web page What i'm working on now as a follow-up is way make a real learning remote Where you just click on that and says learn this signal and it was learning and then be able to play it back yeah, so Anyway, that's what i've been working on And really even though this is an IR application It really is a good replacement for the unit or be brought to another applications Because you got your antler i o on the 2 You got pwm all that stuff. It's hard to do a raspberry pi directly We're gonna just slip it up to the duty pilot and then communicate and play the keyboard So we're looking for other applications But it's the same boring besides just Every remote control like this All right, okay. Well, thank you so much chris and as always it's really good to see you and good work on the guide stuff Okay, thanks a lot. Okay, you're saying All right guides live for people want to check it out. Yep. Next up now. Pedro Hey folks, uh, so this week we have a cute project. It happens to use the cutie pie It's this little keypad. So I've been wanting to make a kind of custom keypad like with a circular type layout So I came out with this that kind of looks like a a lemon So it's running circuit python and it's got the the cutie pie in there and there's also a little neopixel jewel That snap fits in the bottom It's using the new uh kale switches So I probably disconnect this because I don't want to mute right now But I'm using it as a media player. So it's using the usb hgd library for circuit python so I can Play music fast forward rewind Mute, you know increase and decrease the volume, but you could change it to whatever And what's interesting about it is like this texture here on the outside Is something I didn't actually model into the 3d print. It's actually supposed to be really smooth Here's like one without it. So this is like a fuzzy skin Feature texture that you can add to in the in the cura slicer. So here's what it looks like It just adds the randomization That too and what was interesting about that feature is they recently added it so you can make it so that it has smooth Smooth inside so you can say I just want the fuzzy skin on the outside For practical prints where you need like tolerances. You need these little snap snap nubbins You can you can still do this Cool feature and um have it do that. Oh my creep. I just popped out Is it okay? Yeah, that's okay. But yeah, um be a controller. You could do a simon game I like that. It's just a lemon shake. I don't know. That's cool. You see you saw the lemon and then I had to make of course The lime I like them Right, so you got kale switches. You got like cherry mx switches. You can use those too And we're fruit right it makes sense cherry is a kale. It's delicious Um, so check it out. We got the learn guide and we'll probably do a video next week for it That's great. Okay. Thanks a lot. I'm going to be playing the speed up On tonight's show on uskin engineer All right next step jp. What you got going on this week? Uh, mostly I'm just in love with that keyboard that they just showed that lemon thing is so cute I kind of need to make one for myself. I really want to squeeze it. It's awesome Uh, so I got a couple things. I just uh, published a guide which is my Lyfix or Lyfix Lyfix light bulb using the funhouse board and a pyr Motion sensor. I'm gonna enable it right now since it's really easy to to trigger this thing while I'm holding it here And what this does is you'll see I've got a light bulb back here And it's uh, it's a it's green which is hard to capture right now But it just detected motion and so you'll see it just changed to paint It's super saturated in real life terrible on this camera. They don't have any Your arm is pink now. That's that yeah, it helps right to to reflect up something And so this uses a couple features of the funhouse It's wi-fi with the sp32 s2 that's built on there So it's talking to the great internet in the sky and then back to the bulb These Lyfix bulbs have a I think probably sp of some kind in them. They're they're direct wi-fi It's no hub involved. It's just direct and then Using the interface here right now. It's telling me that it's counting down for my think 30 seconds is the default And we can use these buttons to increase or decrease the amount of time that it stays on that triggered mode kind of mimicking the way a Motion switch works in a room like a conference room or bathroom. So So check that out There's code there in circuit python for you to customize it. You can also send to multiple bulbs. You could do custom colors All sorts of things are possible Once you get the basic thing running and then the other thing I wanted to show Is right over here my Product pick of the week this week was this adorable little Neo trinky and they don't trinky. I have uh, it's a it's a usb Nubbin that's plugged into everything's a nubbin right now That's plugged into a long usb extension and into my ipad up here And so i'm using this as a remote camera trigger. So you can see here if I look at my ipad Oh We're getting some We're getting some photos works real well You can use it to trigger video as well Sometimes you want to get everything set up and then start a video rolling It'll start that and then you can hit it a second time to stop And uh, I'm going to put some of that code that I did for the uh for the show up in the neotrinky guide I think so people can can grab that and use it and customize it if they want And then they can also go way beyond that and do things like intervalometers if they want to Have this thing get triggered and then take a picture of a 10 seconds or every hour or whatever you want to be It's really easy to code that right right on that little at sam d 21 that's built on to the lovely little guy And he's even got some neopixels that light up adorable so many photos. All right. Thank you We'll be showing some of the highlights from your shows and more and then tomorrow is gp's workshop for yeah Come on by we got more fun projects in the store. All right Next up scott Hello You've been combining things you caught me I'm trying to fix this so I yeah, I've been working on updating Micro or mic updating what version of micro python circuit python is based on Um, and what I'm sharing here is I'm just trying to get all the tests running I've got like one more test. I think uh to get working and then We'll see how all of the different boards built So for the folks who don't know because there's I think the closest Analogy is like so there's linux and there's lots of different flavors of linux Yeah And you want to make sure that the latest the latest linux that you use has some of the things that the core linux Stuff uses so what would be what would be the benefit because circuit python does a bunch of stuff That micro python doesn't what's the benefit of adding the latest Micro python core to the latest version of circuit python So the benefit I think comes down to the fact that we really do rely on that core python virtual machine The core python mechanics from micro python So when you are interacting with circuit python or micro python the thing that takes your code That takes the text that you wrote as python and and runs it on the device Like we largely largely largely share that with micro python. They did an amazing job I'm complaining about tests failing, but like these tests are from micro python as well So they do a really good job at that like really core bit of python And I was actually on a podcast and somebody was like, what would you have done? To circuit python differently if you hadn't started from micro python. I was like, I wouldn't have done circuit python like This part is just incredibly valuable and they've done an amazing job. So what we get by updating is we get Maybe some speed improvements. Maybe some code size improvements We get new features like one of the The more contested controversial features of python recently is the walrus operator also known as the in-line assignment in Assign and return Sign and return sort of thing, which is like a colon and and a equal sign And so that I know that was added to micro python at some point. So that's And then in 113 they've redid some of the async ios stuff as well So like updating really gives us that core a core update To to the python engine of circuit python. So We as of 6.2. We're based on micro python from like june of 2018 So we're quite far behind and so i've been incrementally doing it kind of every micro python release since then I think we're 2019 now. You're caught up to 2019. I think 112 which i'm Finishing up is like december of 2019. So, um, it'll be easier going forward and then people can decide They could decide. Oh, there's this thing that I want that I do in micro python But I also want like all the device support with circuit python So they'll be able to have the best of both worlds Then we also didn't do you know, we were we were kind of supposed to keep up the date with every major release And we we didn't for six we did for five. I think or four So catch up and maybe with a well, we'll keep up with them again Yeah, I think so I know one thing that's really nice is damien's kind of committed to releasing micro python every two months now Which makes like each individual step a lot more attractable Yeah, um, like when we kind of like stopped doing it was when we didn't know when the next release was coming And in fact the version that we were based on at 6 2 is like not even a proper release for micro python So like that damien doing that has been really great. Um Also easier for us to contribute and people to cherry pick stuff that we've done back into mainline because it'll be more aligned Yeah, and it's my intention Yeah, and and some of the challenge of this is actually because we've had we have like pulled some changes But not all changes for upstream Um, and I I fully intend i'm going to email damien once i'm kind of like all the way through this and be like Hey, we should chat and because this is like one of the rare times we're kind of closest Yeah, in terms of what our code is doing. So, um, We'll hopefully have some good conversations There about Getting even more close. Yeah, what can we what can we share instead of redoing the same code? That'll be good Yeah, like it'll be very clear like these are the things that we did in this area of the code and Like let's look at these are the merges and then are you gonna do a uh scott deep dive about this? already did And i'm gonna continue on friday. So talked about it a lot last friday. Uh, we'll talk about it this friday as well Okay, um And we'll do a check in and and see where we're at Okay for the folks who've watched like us build this, you know, they say airplane in the sky style Like you can see all the bits and pieces of circuit python and what it's based on micro python kind of got mashed together So tune in friday Yep Yeah, yeah, and uh test 70 when we release it because that's one of the reasons we don't do this a lot is because Like micro python and circuit python are both really good stable projects, but the merge is really hairy So you get instability from just like the the merge itself. So yeah, you never know like testing will be really helpful Yeah, I agree. All right. I'm doing this thing. All right. Thanks, scott. All right next up Hey, good to see you again And Hello, hi, I'm Nice to see you again too. I'm just here to show My ring project that I've been working on Um, it's made around on twitters people really like this. Yeah, so, um, I've always wanted to carry leds around and I figured I figured out a way to do that without having to Uh, carry them around, um by themselves. So it's this one and then I made a second one here You can kind of see my my soldering job here is getting better as I do it And then this one is like just all subtlety out the door So it looks like this they're wearable circuit sculptures, which I really like Yeah, because that that was like a trend like circuit. I love long rings. This is so cool Yeah, so it's like it's actually quite practical to wear Still, yes Which I'm I was surprised, but yeah, that's it I'm hoping to make more of them But I just wanted to show you because they're all just interfruit led sequence I love this ring because the battery is part of like, you know, it's underneath this Decorative element. It doesn't look faked. You know what I mean? It looks like it's just what it is. Yeah And like it's it's pretty low profile too. Yeah Um, and you know, I just have to make sure that I don't poke my own eye out Trash in this sacrifice. Yeah, I I gotta go I'm really I'm really good to understand that I'll stay to work. All right. Good work. Thank you so much for combined All right. All right. Next up Liz and Liz's guitar Hi This is think of storage racks. Um, so for a really long time. I wanted to build a guitar pedal I bought parts last year. I found a guy around to it. Um, so this is just a breadboarded very precarious, uh, buzz day circuit um And it's working pretty decently Uh So I'm hoping to maybe do a pcb for this and also start messing a bit with the values I'd already um swapped out one resistor because um, the gate was really tight. I wasn't getting a lot of volume out uh, so that's uh, kind of uh Definitely something I'd like thought about when I was just learning to play guitar But thought it was like impossible. Um, but now I kind of get it. Uh, so that's cool Kind of what I've been working on All right Excellent work Rock guys and then folks don't forget to check Liz's amazing guides on a different learn system too And thank you so much. Liz for sharing your project and some tunes this week No problem. Thank you. All right rock and list bill play us out. We got Two minutes. Hey good evening. Can you hear me? Yeah, at least I'm great. Hey, thanks so much I'm an amateur programmer from Lebanon, New Hampshire When I saw the neo trinky, I just had to give it a try I had always wanted to make a password safe Um on a piece of hardware that I control So we put the files onto the circuit python drive Yeah, and then when I hit the left hand button It flashes and of course I had the cursor of the wrong window. There we go. Let's try that again We're getting like one one or two bill frames Per second Yeah, it was a little fuzzy, but now I can see it There we go. So you tap on the side and then it it types a password for you. Yep And I also have password obfuscation there So I can even use the two buttons to put in a case change So what's stored on the drive is not the exact password But hats off to you guys. This is a wonderful piece of hardware for seven dollars I love it and I was very interested to see the new versions of the trinkets possibly coming out That's right. Yes. So not only do we have we have a core set of trinkets And there's little characters that go along with each one But then we're going to have not forever trinkets and and those are trinkets that we just have a limited part Parts run on like like a really weird scroll wheel or like Interesting, maybe even retro displays or something like that and we're calling them not forever trinkets or NFTs they're new a lot and so I think as we restart we're going to be doing our shows on site again at night We're there at night, but we don't do the shows from there We're going to start to do giveaways and stuff like that and I think for people who do cool trinket projects Maybe they'll get an nft not for that. Oh, that's wonderful. So The last feature is that this I'm going to port this over to the mag tag Gentlemen sending me one and we'll give it a try, but thank you so much for Making this all possible. All right, collect them all. Thank you bill. All right. Thanks everybody. We're on time All right, that's the show tonight. We're here every single week or some of the for team some 30 p.m Eastern time is show and tell the longest running live show and tell in the world most lemons Most 3d printed lemons 3d printed lemons. Yeah, true. Okay. We'll see everybody next week. Ask an engineer starts in two minutes