 Life in New York from the Digifruit headquarters, it's Ask an Engineer. Hey everybody, get your Fluke Digimeter keyboard plugged in and ready to rock because it's time for Ask an Engineer. We'll talk about that soon. It's true, it's me, Lady Aida, the engineer with me, Mr. Lady Aida on camera control and all sorts of other goodies. We're here at the Aida Fruit Factory here in downtown Manhattan where the factory is silent right now but usually it is humming with activity, making, crafting, soldering, videoing, tutorialing, writing. We're working and more packaging and shipping. It's done here at Aida Fruit. Get you the electronics. You love. But for the next 50-ish minutes, we are going to go through news, videos, tutorials, clear telephones, more clear telephones, other clear things and more. What's on tonight's show, Mr. Lady Aida? On tonight's show, the code is Digifruit. It's part of our Fun April Fools joke so I thought I would use it as the code this week. 10% off in the Aida Fruit store all the way up to 11.59pm. Tonight, things that are in stock. Make sure you add the code to your cart and you also get free stuff. We'll talk about that. Aida Fruit live series shows. Talk about that including Show and Tell which just wrapped up from the mail bag. Have a special one this week from our community and a special favor we want to ask you all to help us out. And others with. Time travel, look around the world of Makers, Hackers, Artists and Engineers. Some retro tech, we got a cool thing we're going to show off. Some help wanted from jobsboardjobs.adafruit.com where you can post your skills. Or if you're looking for someone to make and work with you. Make cool things and work with you. You can check out jobs.adafruit.com as well. Main New York City factory footage. We got 3D printing. No one paid to have some cool videos. We got Eye on MPI. We got some new products. We got Top Secret. The answer to your question is we do that over on Discord where we have 33,000 of us. Come by the 24-7 hacker space that you can bring your granddaughter to. That's what it's been called. All that and more. Over on our Discord, adafruit.it, slash discord. And that's on tonight's show. That's what we're doing tonight. Okay, so let's first pay some bills. Digifruit is to code. Yes. 10% off, but you also, when you add things to your cart, you get free stuff. That's right. When you order $99 or more, we're going to give you a free perma-proto half-size breadboard. Great for taking your projects. Soldering them on here to make them permanent. $149 or more, we have a range of beautiful semi-QT boards. You'll get a different one every time you order as long as you have an account because we can keep track of which ones you got. We have various sensors and controllers and configurators and adapters and such. $199 or more, you get free UPS ground shipping in the Continental United States. It's trackable. It's insured. It's UPS ground. All right. And just a bit of a reminder, please make sure you make an account on adafruit.com, verify your email, and put on two-factor authentication because there is a global park shortage. And for the people who want to get things like Raspberry Pi specifically, we're allowing orders with folks who have verified email accounts and two-factor authentication. The reason we do that is so, and you can check out our press section and I'll go over that in some of our other features tonight with some of the news articles. But basically, you want to make sure that you can get one and the bots can't come in. You look around on all the websites out there, not adafruit, but other websites. Raspberry Pi is going stock and then someone buys them instantly and then sells them on eBay for like 500% markup. That's what's going on. Sex. Okay. And for live series of shows, we do shows every single week. We just wrapped up Show and Tell. Thank you so much, Noah and Pedro, for doing the Show and Tell. I'm going to watch it as soon as we're off air. And I had to put this craft, this show together. Yeah. We had to work on the show, lots going on this week. And speaking of, on Sunday, we had Desk of Lady Ada. Lady Ada, what did you show on Desk of Lady Ada this week? I had around eight-ish. Okay. So I showed off, you know, we had a request to make a Raspberry Pi Pico to Metro adapter so people could use Arduino shields. So I kind of started whipping that up, just showing how I would start that kind of design and make some decisions about, you know, the alpha version. And then we do the great search where Lady Ada uses her power of engineering to find all the parts you need because it's kind of hard to find parts. This week, what did I look for? Oh, I was looking for an eFuse because somebody had an idea for a product. Now it's thinking of how to do it without using a buck boost converter. And I was like, oh, I might be able to use an eFuse to limit the voltage and current going into this adapter. So I wanted to find one that was stocked. We also covered these on the great, sorry, on INMPI a couple of months ago. So I looked at that one as well. I found another alternative. Both are in stock. OK. And then every single week we do JP's product pick of the week. Just a little bit of reminder programming that next week JP's off on Tuesday, but he'll be doing JP's workshop on Thursday. But JP's product pick will not be next week. So here is this week's highlight to watch and enjoy. Wait, that's not it. That's just a Metro card. There we go. It is the Metro M4 Express. One of my favorite development boards. What we're talking about here is a really fast chip, lots of memory. So it's based on that Cortex-M4, that's MD51 chip. And it has a lot of great peripherals on it. Cases where I really love to reach for the M4. I'm at the start of a project. I'm maybe not even sure what board I'm going to use ultimately. Maybe not even sure what the form factor is, but I just need to work out some of how things are going to be wired. So I'll go with one of these Metro M4s. And then in this case, this was when I started working on that Pip Boy project. I wanted to plug in the SPI wiring and get this up and running on a board that I can plug things into. I know it's going to have enough power to do pretty much anything in Circuit Python or in Arduino. The product pick this week is the Metro M4 Express. Okay, and Thursday tomorrow is JP's workshop. And it'll also be going on next week. During JP's workshop, we have Circuit Python Parsec. Take it away. JP, for this week's Circuit Python Parsec. I wanted to introduce Vector IO Polygons. So this is something that works hand in hand with Display IO in Circuit Python. It is a 2D, lightweight shaped drawing library. Last week, we checked out Circle and Rectangle, these implicit primitive objects. This week, we're going to look at the very versatile polygon object. So as you can see here, I have a Feather RP2040 with a TFT feather wing. And I have three of these polygon objects drawn on here using Vector IO. They actually use just that one command in the library, but I'm giving them different sets of points and different positions and colors so that I get different shapes displayed on the screen. If you look at the code here, what I've got going on. I'm importing Vector IO as well as some supporting things like Display IO in the Feather wing library. And then I am creating three palettes in this case, and this is going to be changing, but right now I have three palettes so I can do three different colors. And then I am setting up this list of points for that hexagon. So you can see here I have these pairs of points which are XY coordinates of different vertices or points on the screen, which are going to be used when we then create the polygon object itself. Here in this command I'm creating something called hex one, and that equals Vector IO dot polygon. And then in the argument for it, I'm telling it which of the pixel shader palettes to use, which set of points to use, and then an X and Y coordinate for the whole object on screen. You can see here, it's kind of interesting when I do the stars. I'm actually only creating one list of points for this, and then I'm reusing it in two different places. So I have all of these different vertices that make up a star, and then I'm creating star one and star two objects using Vector IO polygon, pick a pixel shader for those, pick the same set of star points for them, and in this case I'm putting them in two different points on the screen. Then I am appending those to the display, and they show up right on screen. And so that is the basics of using the polygon inside of Vector IO in Circuit Python. That is your Circuit Python Parsec. Okay, and on Fridays at 3 p.m. Eastern, we have, sorry, 2 p.m. Pacific, 5 p.m. Eastern, time zones. We have Deep Dive with Tim, so check that out. That's one of the long form shows that we do that kind of shows all the ins and outs of doing things with Circuit Python. So check it out on Friday. Bloop, bloop. Okay, let's do some mailbag. This one is going to be a little bit different this week, because we have, it's a twofer. All right, so the first one is, we really appreciate when people send us nice emails and we read these to our team, and also lets us know we're doing a good job on things. So thank you for that. This came in from a customer, it says, I wish I could attach an image, because they sent this, I think, via a way that they couldn't. However, you'll know what I'm talking about. The quotes at the end of some of the shipping invoices included with my order absolutely make my day. So many things about your company. Impress me. Well done. You set a great example. Thank you. So, you know, if you go on, like, the social medias and if you just search Adafruit invoice or Adafruit invoices, you'll see, you know, people take a photo at the bottom of their invoice. And this is from Adafruit.com slash quotes. And this is quotes that folks send us, our team sends us. And we make sure they're real. You know, this one's from Margaret Fuller. If you have knowledge, let others light their candles at it. This was another one. The miracle is this. The more we share, the more we have Leninemoi. People know Leninemoi as Spocking. And then injustice anywhere is a threat to justice everywhere. Martin Luther King Day. And that's Martin Luther King Jr. And we have that on our site on Martin Luther King Day. And, you know, folks like this. So we have to live up to these quotes and more. So one of the things I'm asking folks this week is we got an e-mail from our team. Well, it was actually in our site. And our team said, hey, did you see that there is a business statement on anti-LGBTQ state legislation over on the Human Rights Campaign Freedom for All Americans Education Fund. And we took a look at it. And basically I'm going to go over to the chair here. It's a statement that businesses can sign on to. And the screen is going to, the text is going to be small in the screen. So I'll just do, they have a pull code overview. And this is a statement. If you're a business and you sign on to this, this is one of the statements that you're signing on to. We're deeply concerned by the bills being introduced in the state houses across the country that single out LGBTQ individuals, many specifically targeting transgender youth for exclusion or differential treatment. And what you can do is if you're a company. So right now there's 229 companies signed the business statement opposing anti-LGBTQ state legislation stating their clear opposition to harmful legislation aimed at restricting the access of LGBTQ people in society. You can contact Workplace at HRC.org to join the statement. I put the URL there. So we signed it. I don't know how long it takes for them to add your company name. But that's not the reason you sign things to see your company and you sign it to say the support. Hopefully they'll put our company name on it. But my request is if you're at a company and, you know, sometimes these conversations are difficult. Sometimes the company has their own politics or whatever, but maybe send a note to your team and say, what would it take for us to sign this as a business? And see what they say because the more businesses that say, hey, like, you know, we're trying to run companies here and be inclusive and attract talent and bring people together and have a cool, safe workplace. These state legislation things are making it really hard to bring everyone together. And that's not a good example. And businesses often, just the way it works now, often have to say what they're all about and say what's important. So anyhow, if you could, y'all, check it out and ask the companies that you work for. I'm going to contact them and I'm going to say, well, there's some like maker and electronic companies. There's a lot of tech companies. Let me go through the list real quick. You know, the ones that you kind of expected this point, and I know it's just, you know, signing a thing like 23andMe, Accenture, Adobe, Apple, Airbnb, Ally, you know, you could just go Amazon, you could just go through and that's just through the A's. So, you know, maybe we'll, we'll see, if you're on here shortly. But it would be nice to see all the electronic companies that we all use and shop at, sign on to this as well. So I'm going to send that off and that was our little corner of the world that we have, our little platform, and we wanted to help get the word out. So, thank you to our team for letting us know about it so we can sign on it. All right. Okay, next step. Let's go to time travel. All right. Time travel. So, work it on 8Box. If you don't want to wait for it, that's okay. We don't charge until we ship. We're still, so it is still cold in New York. So it's still kind of winterish here, but we're still going to try to get 8Box out in the next, you know, 30, 60 days. We're still waiting on lots of things. Global supply chains are grinding to a halt for the most part. Yeah. When you shut down a city of 28 million in China, there's stuff that gets delayed. But, you know, we're, we're doing our best and we will, we will keep everybody updated on box status. And if you want to cancel, that's okay. Come back later. However, we have about 300 or 400 people waiting for folks to drop off. So, just know if you cancel a subscription, you might have to wait to get back on. Yeah. Okay. Other time travel news. It is National Robotics Week 2022. Check out our blog posts. Check out the social media things that we're doing. Lots of folks are posting up their robotics projects with eight of three parts. Not a requirement, but thanks. We appreciate it. And we'll be celebrating Robotics Week all this week. And let's say it about more time travel. So on, you know, I played this video in the beginning of the show and we wanted to do an April Fools thing, but we didn't want to trick anyone. We want it to be very clear. Obviously, this is a logo of the combination of DigiKey and Adafruit. DigiFruit could do AdiKey, but DigiFruit sounds better. And we combine the logos and we were thinking, what type of thing can you do that is not mean to someone? It's not trying to trick people so they're angry. A lot of the April Fools jokes aren't that funny. It's not cranky. Yeah. I think what you're tired from pranks right now. And what can you do that just like, that people are like, oh, you know, that's kind of fun. Oh, and like getting other people to play along. And, you know, basically you just have to spend more time thinking about what a joke can be in this modern era. Because you don't want humor on this day to separate people. You want it to bring people together. So what we thought was, hey, you know, it's kind of neat. It's a long time ago. Fluke actually made a keyboard for industrial equipment. Yeah. So we started with that idea and we said, I want to be cool if Fluke made a multimeter keyboard. And this is one of our designs. We pretended like we were going to build this thing. It has the Fluke yellow around the outside of it. And it has a built-in multimeter. And a lot of people have a multimeter on their desk and we put the little thing at the bottom available at DigiFruit. We talked to Digikey before we did this. And then what was cool is the folks at Fluke were like, hey, this is really neat. We also launched Game Software Day Perfect Appair with this keyboard. So they had their own prank that showed that you could play video games on Fluke's. And then we put this on social media. People really liked it. They said, oh, I want to actually buy this thing. It's a very handsome keyboard. Folks were jumping in there like, is there going to be a spark from Brandon One? Literally all of us want this now. And then folks were like, oh, DigiFruit, that's really funny. And we had a whole series of logos that we did. We approached this as what would it be like in this other universe where these two companies merged as one, kind of like the other side of the fly when you get out of the two transporters. And yeah. And then someone commented. They said, look, I know that it's fake, but DigiFruit is a future. And it's cool. We do a lot of stuff with Digikey. So folks like that. And then our friend, Dana, who does these really cool reimagining the future or the past, this is like a next console. It's a 50 megahertz 6803 with Motorola DSP. 2.88 megabyte floppy. It's like an Apple 2C across to the next. And the history behind this is the reason why we got this shout out here. Thanks to Adafruit for allowing me, guardianship over this beautiful example is, we had sent Dana some next hardware. So this is really cool to see. So it was neat because it's more like skateboarding where people are saying, oh, that's a neat idea. Here's my neat idea. Oh, here's a cool product that I would like to see one day. And who knows? Like, I think after I get a little bit of time, I might email Fluke and say, hey, is this something that you would consider doing? Or who knows? Maybe we'll come out one day. Yeah. So that's our, that was our April Fool's thing. And thanks everybody for supporting it and sharing it around. And I think that maybe that'll be our themes for each year is like, what's a cool idea of something that we kind of want to see that kind of makes sense on us, but it's very clear that we're not trying to trick people and everyone gets to play along. Okay. We have some Adafruit IO news. This is kind of a big milestone. Adafruit IO hit one billion data records. Now the interesting thing about this is the data for the free accounts rolls over every 30 days. We cleared out. So this is a lot. There's a lot of people using it. Last week we had an educator's email to us and their website where they said they looked at all of the IoT services and they said Adafruit had everything they need for their students at a free tier, had all the stuff, had good documentation, good examples. And that's a pretty big milestone. So if you haven't checked it yet, Adafruit.io, free tier for everyone. We have an IoT Bill of Rights. We do, I think the best job with IoT. And then if you want to support us, you can always get a plus account as well. Okay. Rich or hardware time in the past. Okay. So this week, I just put these up today. This is kind of neat. This is a 1980 clear telephone. Even the cable is clear. And this particular telephone, they were making these without the, you know, the touch tone buttons. Yeah. Well, they were making these without the touch tone buttons earlier. Like the model, it's the Western Electric, like 1000. And this is the 2500. So the 2500 has the touch tone. And this is a pretty rare, clear one. Not a lot of details on it other than it's ours now. But it's from 1980. And... Look at that through hole. Yeah. 1980. And it's a rare example of kind of a different aesthetic. And I'm going to go... It seems really early for 80s, because it's got this 90s feel to it. But it's 80s. You want to go grab it? Yeah. Put it under the overhead. Put it under the overhead. Yeah. So here we go. So we have a whole bunch of clear things that we're taking photos of. But we like this idea because it shows electronics. And it lets you see that there's more than just an outside plastic shell. You know, like all of our phones now, all of our computers. I think there's a little piece of foam here to keep the wire from rattling. Yeah. Bells. Bottom. Loud. You can damper. A lot of wiring. A lot of the electronics is actually on the back of the number paddle. It's actually kind of tough to see. And then the number bed piece came off because we removed it. And you can press the buttons. And then this is the wiring. You can see all the spade wiring to the transformer, the high voltage stuff. You can see how this works with the relay. It's kind of cool. All right. I think I've shown it off. Yeah. Within reason? Yeah. And so, you know, someone pointed out, maybe this is where Apple got some of their ideas when they were doing the stuff. They made their clear IMAX. At least it's not clicking. Okay. We'll figure it out later. Next up, let's do some help on it. Jobs.adafruit.com. That's where you can post a job if you're a company. Yes. You're looking for cool folks. Or if you're a maker and you have skills, you can post those up too. So this week we have two jobs. The first one is lead hacker at Hack Club. Check that out. It's a pretty important position. You would be in charge of their Hack Club. I think they do remote, but they have some details. I think they like it to be in person. And then this one is a PlayStation 4 to PlayStation 5 custom controller mod from Happy Cat Productions. And they want help with how they're going to change a controller to work with another type of system. And they have a bunch of documentation. They have the specs, the details, and more. So check that out. A really cool job that someone, if you're interested in modding controllers, there could be a job for you. OK. It is Python on hardware time. I got a few things going on. Highlights of the week this week. We've got, well, we've got the full newsletter. And the newsletter is bursting with hardware and software projects, Python news from around the world. We have a lot of stuff going on. So what I try to do each week is pick out something or a few things that if you don't have time to read the whole newsletter, you can listen to this video or you can watch it and you can kind of see what's going on. So this week we have a Circuit Python update. Major things, I guess, Lamar, we just merged in the MicroPython 1.18 changes. Yeah, there's two versions. We have a beta and 1.3, sorry, 7.3 beta. Yeah, we merged in 1.18. We're doing a little bit of USB host support. Since Scott's out, there's not going to be as much development, but we're doing a lot of bug fixes. So check out 7.24, which has bug fixes in it. And then I saw this was kind of cool. This was a person who made documentation for their Joypad and Lumos ring with Circuit Python, and they made documentation look not so boring. And it's this app that you type in stuff, but it makes it look like more hand-drawn. And I was trying it out real quick, and I'm just like, oh, this is really nice. Oh, that's a nice old diamond. Yeah, so it's called Excalidraw. For me? Yeah, so check it out. And it's in the newsletter. And these are the type of tips and tricks and things that we also put in there. If you wanted to have a flowchart on how the code works, or if you're using Circuit Python for education, which a lot of people are, and for doing your documentation, you don't have to use very boring, static-looking art or graphics. You can do something that looks a little bit more interesting. I love the look of the hand sketch. Yeah, and I like what the person who is working on this says. They may look a little bit gimmicky, but they like how it softens the otherwise clinical-looking content. It's true. We only have a few minutes to inspire someone to want to code or do something, so anything you can do. And thanks for the folks who posted in the chat. It's kind of cool. And then next up, this one has been making the rounds. This is Circuit Python Linux, sort of, on a Pico. So here it is, and it boots up. It's Linuxy. And the GitHub repo is available. And one of the things I like about it is on the text, on the repo, it says, important note, do not take this project seriously. This is not a real Linux distribution. It's a little fakey-fakey thing, yeah. But that's when Lina's posted about Linux. It's like, this is not a real Unix distribution. This is just a joke. Well, that's why it's Lagenix. Yeah. And so if you want, you can go to GitHub and check this out. It's bill. A-D-T slash L-J-L-I-N-U-X-Lagenix. Lagenix. Lagenix. Yeah. And then another one. I thought this was neat. This was over on Instructables. And for me, I'm starting to see, like projects in the past that would be kind of hard to do or maybe they would use something that's like, okay, like here's 50,000 steps to do just one simple thing. I'm seeing tons of circuit Python projects on Instructables. So if you wanted to make an infinity macropad like this, there's a full Instructable available now. And then the last bit of Python is this week is, over on our press section, we're keeping track of this because Raspberry Pi shortage is in the news a lot. And we're mentioned. So production and supply chain updates. This was over on raspberrypi.com. And Eben, the founder, has an update about what's going on and more. And here's a quote from him directly. These backlogs of board library of Pi units is fast or as faster than we can produce them. The result of that little of production volume ends up being immediately available on reseller websites where units do appear, bots often attempt to buy up the stock, which then could be resold at higher prices elsewhere. Many approved resellers. Wow, this is a... Your computer's like, time to update. Yeah, your computer's like, why won't I update now? Many approved resellers have been implementing single unit limits to combat this with Adafruit and others going further and enforcing two-factor authentication. We're encouraging other approved resellers to go this route. So that's what our reminder is again. There's a lot of people who are doing Python on Hardware specifically with Raspberry Pi. So please, please, please make an account on Adafruit. Verify the account. Do two-factor authentication. And if you want to go to our press section, adafruit.com, slash press, and we're keeping track of all the different news stories in the websites that have Raspberry Pi availability, we're also mentioned in a lot of these on some of the things we're doing. So that is Python on Hardware News this week. Thank you, Blinka. Okay, open source hardware. Mm, that's us. Sit up, it's my time. Open up my Adafruit. We have 2,653 guides, Lady Aida. Yes, I'll tell you all about them. Click on the thingy. Okay, so starting with the bottom right, we have a guide for the ESP32 S2 Feather. We've updated it. Katnie has been adding more pages. We've also got updated guide for the ESP32 Feather V2. It's a new feather that just came out. It's like our ESP32 Hazah, but more better than ever. And I think we added the Arduino instructions. To add Arduino support, you're going to have to update, like, the install, like the latest latest, but we show how to do that in the guide page. JP's guide this week was pretty cool. He worked with Todd Bot. This was a request. Todd Bot had a great collection and like a gist of all sorts of tips and tricks for using CircuitPython, just like a cheat sheet collection of random tips and code snippets that Todd Bot uses a lot. JP and Todd Bot work together to get them all into a learn guide format. People are loving it. It's a great guide. Liz Clark did a really fun project. I said, hey, why don't you do some sort of pure data project with the ESP32 S2 QDPy and the new touchscreen controller. And she rocked it out by making this like super chunky, like Pip Boy style controller with a touchscreen adapter. And, you know, wherever the XY coordinates that you're pressing, it sends data to pure data wirelessly over Wi-Fi. So I thought it was a really nice example of kind of an advanced wireless music controller. Okay. Nick's chunk of guides. I know. We had a lot of guides. We had an update to the ADXL345 digital accelerometer guide. I think Liz did this update. It's now been STEMI QTFI'd. Matt D came by. He was on show and tell a week or two ago and came by with the PyGlass V2 now with the PyZero 2W. And so this guide shows all the updates. You know, we have some outside folks who are at guides once in a while. The style is going to be a little bit different, but if you want to build a kind of complicated project, I thought there's a lot of really good gems. Liz also wrote the guide for the TSC 2007 iSquared C-resistive touchscreen controller. So that's the STEMI QTFI we put in. And then Noah and Pedro built a MIDI foot pedal, like a from scratch foot pedal. If you don't want to take one off the shelf and modify it, you can 3D print one completely. Add a potentiometer and a QT PI board to make like a MIDI controller or any other kind of controller that can be adapted with CircuitPython. Okay. And we wanted to do a little video that Liz made. Yes. Yeah, if you like pure data or you like weird music, you're going to love this minute. And Main New York City factory footage. And it wouldn't be Main New York City factory footage without the latest time-lapse from the Disney building across the street. Now taking up the entire screen, but you see like a little guy there. Hey. That's how you can tell the scale of the building. That's Disney. All right, 3D printing. We're going to play these back to back. First we have the MIDI foot pedal, you know, Pedro. And then we have this cool speed up for the mini hot plate that everyone seems to like. Hey, what's up, folks? In this project, we're making a MIDI foot pedal with CircuitPython. You can DIY this MIDI controller and 3D print parts to build your own foot pedal. A foot pedal can add an extra layer of expression to your musical performance. This has about 22 degrees of rotation, which gives you a wide range of expression. It features a single potentiometer that can be assigned to just about any MIDI CC. Powered by the Adafruit QT Pi RP2040, this tiny dev board is perfect for both simple and advanced MIDI controllers. CircuitPython has a MIDI library that makes it easy to develop your own MIDI controllers. In the code, values from the potentiometer are mapped to a range of MIDI CC values. With the serial monitor and plotter, you can see the values from the potentiometer and set the minimum and maximum values to fit the range of control change. In your music software, you can assign the foot pedal to control any number of MIDI CCs. In this demo, I have it mapped to a Wawa pedal for a guitar synth. Get the parts to build your own and check out the tutorial on the Adafruit learning system. If you're looking for more, the MIDI for Makers Learn Guide is an awesome resource filled with project ideas, demo code, and wiring diagrams. So what type of MIDI projects would you like to make? You can let us know on Adafruit's Discord and the weekly show and tell. Thanks for watching and be sure to subscribe for more projects from Adafruit. This is where you can learn to make all this stuff and more. Okay, later. I think it's time to do some IonMPI. Ready? That's right. All right, this week's IonMPI is brought to you by Bornz. That's the product we're doing. And did you key, of course, because that's where we're going to show you where to get this. Lady Ado, what is the new product of the week this week? Okay, so this week's IonMPI is from Bornz. And they have an awesome logo, as you can see. Just love that little, like, twist on the R. It's like bangs. We actually featured Bornz like a month and a half ago for their dual concentric glittery encoder. So, but it's, you know, sometimes you get lucky. You come up like a month or two later. So this week we're showing off the Bornz. Hold on, let me get the exact part number. Well, this is the MF-LSMF200 slash 24X SMD PPTC fuse. Basically, it's these really high-powered polymetric PTCs, which are positive temperature-coefficient fuses. I love this rendering. They do even kind of look like that. There's kind of cool gold and black color. And they're basically high-voltage, high-current fuses that are resettable so you can use them in your design, even if you're using a lot of current, like for big LED or motor-type projects. There's ones in this fuse series, I think that go above 35 volts and 6 amps. So it's quite a lot for a PTC fuse. So these come in a family. The whole series is called the LSM-MF series. The PTC resettable fuses. And you can see here it's just the top of the chart. The chart's quite long. All of them have really good testing, really good quality. Bornz has been making fuses and PTC fuses for a while. They're all, you know, they're not tiny, but they're low-profile and they're easy to pick in place with a big range of VMAX, which is the voltage to expect. I-Hold, which is the current that you can pass through safely at a given temperature. And I-Trip, which is usually about twice or ish, you know, one and a half, one and twice as much as I-Hold. And that's when the fuse will trip. And by trip, I mean it will open up and disconnect both sides. So normally it's closed, current goes through, current goes above a certain amount that could integrate a short or some sort of failure inside. It opens up and protects the circuitry from damage. This is from a really great video that we'll show a clip of later from Digikey. They did a really great video about NTC and PTC thermistors. And so they actually showed that there's two kinds of thermistors, the Solister. Now, I actually had never heard of the Solister. Not a Solicitor, which is kind of like a British lawyer, I think, but a Solister. And Solisters, you see, are PTCs, but they have like a steady rise up. And those are tends to be used for, you know, measuring temperature because you see a very linear relationship between temperature and resistance. And so if you know the resistance, you can easily calculate the temperature. Whereas the switching type PTC, which is the kind of use and fuses, you can see it actually, I didn't know this. The resistance actually drops a little bit with temperature until it hits Tc, which is the Curie temp. When it hits Tc, the resistance, you can see it spikes up really high. And that basically opens up the circuit. So it's this nice graphic. Again, from Digikey shows. Low resistance when temperature is cold. High resistance when temperature is warm. And what's neat is as it cools down, it can go back to low temperature, low resistance. This is unlike most fuses. Got this pick from Flickr. The credit's going to be in the text because they got cut off. But you see here the fuse, when it blows normally like a wire fuse, it doesn't reheal. It's blown once like you have to replace it. And usually there's like a easily replaceable fuse. You can pop it out. It's not slotted onto the board. But with these, they heal themselves or self-healing. Because as the current, the short goes away, the circuit is open, the PTC will slowly cool down. And then it'll re-close again, basically retrying later. I do want to mention, Bornstess has some one-time fuses that are circuit mountable, surface mountable. So just watch out. These are like I think they're called one-shots or something. But these are the PTC ones I'm talking about. And you may be familiar because we have these on a lot of our boards. These are some green generic ones that we have on our Metro. We use them to protect the USB port. This is like a 5 volt, 500 milliamp or 1 amp fuse. And that's why for a lot of modern electronics, if they suddenly stop working, sometimes if you unplug it and wait a few minutes and plug it back in, it doesn't work because you give a chance for that PTC to cool down again. Which is great. So one thing to think about is, as more currents flowing through, the temperature goes up and then it pops open. It does mean that the trip and hold temperature will vary with the ambient operating temperature. Something to keep in mind. If this is inside a machine or robot that's very hot there's a lot of heat emanating from a motor or a motor driver. Just be aware you'll have to de-rate so you might have to pick, you don't want the heat to add to the, you add that to the TC, temperature carry and now, you're tripping a lot earlier than expected. So you might, if you normally would want a 2 amp fuse, maybe a 3 amp because you're de-rating by 50%. So just keep that in mind when you're, especially if you're doing robotics where the power supply or temperature, there's self-heating from the circuitry itself. So Digikey has like thousands and thousands in stock which is great because I always love to do an INMPI where you can get the thing. So go to Digikey. I just picked the first one which I think is this 24 volt 4 amp one and I can quickly show it on the overhead so people have an idea of the size and we can show the video. Boom, okay so let me get so close. So this is just a strip of three so you see they come on cut tape and let me just carefully peel away and yeah, you can see it's kind of got of a ceramic-y outside. It's got this really cool like lines on the inside, big gold pads for lots of current transfer but otherwise a great looking and for the amount of current at this pass is amount of voltage, not too big. So usually PTCs were known for like maybe an amp or so at the most but now you can do up to six amps easily with these surface mountable fuses. Alright, let's play the video. PTC or positive temperature coefficient thermistors are made of materials that increase resistance in response to a rise in temperature while a decrease in temperature decreases their resistance. These are typically placed in series with a circuit as inline resettable fuses to protect against overcurrent situations. Here when the overcurrent situation occurs the temperature rapidly spikes causing the thermistors resistance to increase as well, reducing the current that is allowed through. There are two varieties of PTC thermistors. The first is a silicon based thermistor called a silister which has temperature characteristics that follow a linear temperature curve with resistance gradually rising as the temperature rises. These are not very common but do exist. The second is a switching type. These behave like an NTC thermistor until they cross a temperature barrier called the Curie Point or Curie Temperature. The Curie Temperature is a defined temperature trip point at which certain materials lose their permanent magnetic properties which in short affects the device by creating barriers when it reaches the Curie Temperature to allow the resistance to increase resistance. And that's we... That's this week's Ion of Yacht. Alright, thank you Digikey for sponsoring the segment Okay, what's going on? Can you do some new products? Can you do the top secret? Just questions and more. So don't forget the code is Digifruit 10% off the native restore all the way up to 11.59 p.m. Alright lady, let's kick it off with some new products. New, new, new new, new, new Alright, okay. Lots of news this week. Alright, we've got from Sony's presence the Sony's presence LTE add on board. So if you have the Sony's presence breakout, this is a board that adds like a bunch of stuff. It's not just LTE although you do get a SIM card by the way so you can quickly going with your NBIOT cell phone data projects but it's also got like headphone out. It's got the micro USB connector GPIO output micro SD slot and a bunch of other things. I don't remember the exact list. I don't know the page for all the details but it's basically a breakout plus it's got this cool Sony LTE module on the back. It's the silver thing in the middle. It's so small. It's got a built-in antenna which is kind of handy. You can see that big ass antenna. Oh, can you go back? And then you can see the micro SD and micro USB port in the top left and then headphone speaker on the bottom left and then in the mid right next to the coin is the SIM slot. With a SIM, I think it's a universal SIM from TwoPhone. You will have to of course pay for usage but a lot of NBIOT SIMs are pretty cheap because you're not using SMS messaging. So check it out. You can get a couple megabytes maybe and then sign up to activate the TwoPhone SIM. Next up, this is coming soon. This is the Lixi Chroma so we're still getting, we're just going to contact them because there's a little bit of a confusion about whether you get one or two boards per pack. I believe you get two boards per pack. So one board has two digits. It's basically a neopixel array of two 7x5 characters and they've got a library you can use to you know, display text and like little animations and stuff. One thing I will note, the library does not work with anything other than the ESP32, 8266 or TNC3. I do want to verify with them that because it seems like it's based on fast LED. That's just something to watch out for so if you want to pick one of these up and you're using like a SAMD21 or an Arduino Uno, it's not going to work at this time. So hopefully they can get that fixed but this is coming soon. It is a really nice way of adding chainable digits for fast messaging with one pin and it's all WS2812 based. Okay, next up, technically two products but we're going to do them kind of at the same time. Okay, so this is the Payonora from Diodes Delight, Timon, who's been working on this project for a while and I'm so excited to see it came out. This is for use with the Compute Module from Raspberry Pi, which is unfortunately a little tough to get but maybe you already have them and also there are some coming into the market. So this is a board that kind of turns the Compute Module 4 into an Arduino Uno. So the Compute Module plugs in into those like Herosie-ish connectors, I think they're Herosie and it gives you, so hold here. Yeah, stop here. On the right you see a microSD slot and I think there's a button on GPIO pin 26. The pins are lined out for the analog pins. It looks like there's an MCP3008 analog input to SPI converter. There's power pins and then there's a bunch of digital pins brought out. Because of the layout there's no SPI pins so just be aware that if you are using a shield or something you want to use an Arduino shield with SPI just make sure it is expecting the SPI pins not on the 2x3 header but on like the Arduino Uno side of the header. On the bottom, sorry on the top left there is a StemAQT slash quick connector so you can quickly add I2C devices from SparkFun or Adafruit or others. There's a switch for whether you want to use USB host or device. I think that's a good GPIO pin on the Compute Module, a USB-C connector for that. Do note if it's USB host obviously it's not PD so I think it'll just provide 5 volts flat. There's another USB connection for USB device. A Neopixel on pin 12 and HDMI connection and then also a boot button so if you want to load firmware onto the internal MMC and I think the microSD slot I'm assuming can be also loaded with firmware and then on the bottom thank you for being so patient. I know there's so many things. On the bottom the light version doesn't have anything so you see the bottom there's like nothing there. We stuck both. If we have the picture of the bottom of the pro there's a camera connector. There's an M2.5 adapter so you can have like a SATA type thing whatever like M2.5 so you can get like disc drives and things and also there's a separate switchable power supply as well though I don't have the details memorized on that power supply so do look it up basically you get the camera port and the M2.5 which you can read about how to integrate M2.5 devices because it's similar to the Compute Module IO board and then you also have those SMT that's to mechanically attach various M.2.5 cards. Alright next up. So much. I know I know but I wanted to I wanted to give it a good time. This is the shoot I can't remember the name. I think it's the Pi port or the Pi Zero port. Why don't you look here. Sorry there's a lot of devices. Sorry the zero dock. Zero dock. So this is a cool product that I saw and it has a little spot on the left for your Pi Zero and we just bolted one on. It comes with the little solderless breadboard does not come with the Pi Zero but once you've bolted everything in there's all these like fun slots you can like store things in and then you can wire up circuitry as well so I'll show this on the overhead because it's a little confusing I think. Yeah it's plastic pieces and it comes with a breadboard. Yeah. Okay so it's got header here you know the Pi Zero is mounted you can still access the micro USB and the HDMI port and the SD port and the camera port so it's kind of above the plastic and then this is just like hi I want to like store my like adapters and like whatever bits and cards. I kind of like the card holders actually because that's really handy because I'm often swapping out like you know I have a Pi OS Lite and maybe like in you know media player and then you know you have a little breadboard and you can just wire up like a button or LEDs or whatever just a little bit of space. I'll just note it doesn't come with all these fun accessories or buttons and LEDs or the Pi Zero it's just the plastic piece and the breadboard but still very handy. Okay and then next up this is kind of a star of the show almost because we have a lot more coming and it's beautiful and it's from a friend of ours and it's I think one of the first like artisanal LED products. This is one of many by the way and if y'all are in the maker world you might remember Mark DeVinc I worked with Mark at Make Magazine and Mark now has his own USA made artisanal LED line. So these are molded onto I think either a 3mm or 1.8mm LED this is the first of many it comes as a 5 pack so they're hand molded and it kind of got this kind of like cool crystal look which could easily be used for like science or magic like you know like ethereal elf projects like it's actually like this crystal shape is kind of multi useful and this is part of a whole collection so we just got these in today. Yes we only got to photo one before we ran out of time so I thought I would just show it on the overhead it's a little tough for the overhead to focus in on it but the whole thing does glow quite nicely it is a little brighter in the front but the whole thing has like a neat crystalline look it's only single color here I'm just holding it with a coin cell battery and then this is what it looks like off so even though it's molded on top of an LED you can't see like it's really hard to see that there was something in the middle it looks just like it looks just like a fully solidly molded LED diffuser and I like this shape and there's a couple other shapes coming but to start we've got this 50 yellow stalagmite I don't know what you would call these just crystalline just a crystal element and more to come to get a pack of 5 with each order alright next the stars show besides you lady at our customers our community all the folks here at Adafruit the staff and anybody watching is this is the ESP32 S3 feather so this is actually very similar to the S2 feather that recently came out so I'm going to go through all of the details here so the ESP32 S3 is a new chipset from Espresso it's kind of the latest one and like the S2 it has native USB which means it actually works with circuit python it can act as a disk drive we've got tdusb library it can act like keyboard or mouse it's got a built-in ROM bootloader which is really handy so you'll need a USB serial converter or any special chips it works with the ESP tool and it kind of brings the power of the ESP32 to the ESP32 it's like the power of the ESP32 plus the USB of the ESP32 S2 equals ESP32 S3 because it's got dual core again which people missed it's got 524K of SRAM compared to the 384K that was on the S2 it's got like 200ish more K of RAM which is great just built in so you can buffer a lot more faster and it's got BLE back in it so it's got wifi and BLE and the module itself is like completely pin compatible with the S2 it's a tiny bit different but we designed our feather layout to work with either and so this one just has different silkscreen to indicate the S3 but otherwise it's a lot like our S2 feather right now there is not a version of the module with PSRAM so we're just kicking it off with a version that has 8 mega flash, no PSRAM but it does have that extra it has the 500K of SRAM built in and the circuit python actually worked quite well with it you can't buffer huge files but you can do a lot of basic wifi stuff and the inclusion of BLE is super great and then the dual core is awesome too Arduino support just got merged in to I think the pre-release and I think the release is coming soon so it's quite new as of this video but a lot of people are going to be using it so I'm assuming it's going to get better and better because Arduino support like I said circuit python support it's like alpha but you can use it and you want a more powerful ESP32 I think this is what's going to really replace the classic ESP32 because it's got everything pretty much everything the original does with the native USB as well and the processing have improved so it's actually cheaper to buy this chipset than the original ESP32 other stuff on the board actually I can go to this one real quick I'll just pop through it you've got a reset button that can get into the boot loader there's a built-in LiPoly charging as you'd expect for a feather there's a boot button that can be used to force it to the boot loader you can also use it as a GPIO input I'm pretty sure there's an LC709203 LiPoly monitor so instead of using a resistor divider we actually have an I2C chip that can monitor the battery for you and tell you the percentage and voltage of the battery and there's a stem and QT port in the middle with a separate 3.3 volts low dropout regulator so you can go into really low power mode with this board and it can go down to like I think 50 to 70 microamps and then you can turn that off as well sometimes I2C devices don't go into low power mode so this gives you like an extra switch there's also a little NeoPixel as well there's a ROM boot loader we also have a Tini USB a separate secondary boot loader that shows up as a disk drive for people who like the Tini UF2 boot loader okay let's go for it do do do do do do do do do do do do do do do do do do okay so don't forget the code is Digifruit 10% off an Adafruit store we're going to do some questions you can start lining them up in our discord adafruit.it you can also of course always bestplaceforms.adafruit.com especially for the longer questions where we're going to need photos and some back and forth with our engineers and more to help you get any help but let's do some top secret first ready? Yeah, let's look in that vault yeah alright so lady to the top secrets this week, why don't you talk about the first two just you know I found this random ass UV sensor I can't remember the name of that company like Jenna UV or something and they have an A and an A B UV light sensor I thought that would be kind of interesting because I'm always looking for UV light sensors a lot of them get discontinued and then this ENS 160 quad mox gas sensor I thought was kind of interesting too mox gas sensors you know it's always kind of interesting different companies have different takes on them the technology the theory behind them is kind of the same with all of them but they have a little tweak so this is a breakout for the ENS 160 they do have an Arduino driver which is kind of nice so I can check it out it's I squared C and then we have a little video that we shot this is a miniature like model train or like model city or architectural model stoplight and I thought this was a really adorable little device that maybe engineers could use I've got it wired up to an Arduino metro mini and the wires are really thin so I just kind of got them stuck in here but it's good enough to test the black wire goes to plus 5 volts and then you just connect red, yellow and green to digital IO and then a little bit of Arduino code just to test it out but I just thought this was so cute I mean like maybe people making electronic doll houses or something can use this cute little model and necklace and necklace maybe yeah like stop green go and I also got this interesting kind of like test clip which is 0.1 inch spacing and you just clip it on very handy maybe for debugging or programming then we have a little short video the latest Pie Leap update that we're working on right now Trevor put together a quick video, going to show that and then we're going to show some LED cubes and then we're going to do some questions hello this is Trevor and I'm here to show you our new Pie Leap update this time around we'll be showing you the Pie Leap update with the second playground blue fruit let's get started first we're going to select the project we're going to connect to our blue fruit device we enter pairing mode and we should be connecting now awesome so now let's transfer some rainbows over to our second playground blue fruit and just like that we have rainbows let's try that for our blink project awesome let's try the project that's a bit larger put together doesn't take too long and there it is awesome and does it working? Yes it is awesome well there you go that's our new Pie Leap update we'll check in with you soon see ya okay then these are some videos of an upcoming project you've probably seen some of this on Pedro's show 3D Hangouts but we got a lot of cube projects and this is part of another larger cube project and this is before they figured out how to get the camera to not desync and then they figured out how to get it to to sync nicely. Yeah well I think most folks understand that when you have a... you'd be surprised I'm going to have to say it every time now we're trying to orient ourselves yeah I kind of like that it's a little Minecraft it's like the test images of Minecraft cube there's something hilarious about that and then here's a pretty cool this is starting to get like matrixy this is a test demo it's not smart but we're going to make it smart yeah and that's a tough secret of the week okay I'm going to jump right into questions let's get some of these questions okay so I keep leaning back hello we're doing these over on discord so first question you sell an ESP32 dual antenna in the store any plans to make a board fortunately it appears bigger than the feather the dual antenna ESP32 don't have plans to make a board with it but I believe it's pin compatible so you could theoretically take our ESP32 HAZAA and either remove the module from it with hot air or you can just download the boards that files that we you know published and make your own and just solder the PCB on there and it should work okay where do you see the maker hacker community and products 5 to 10 years from now will stay the same, what things might change well it's a fun thing to think about because you can look back 10 years ago and things were a lot more expensive they were bigger you have to solder things yourself and then if you imagine that still going forward things will be easier and it will be cost everything will have a screen everything will have battery probably scripting languages you know python, python like things and I think it will just be easier and then the other piece is how you use it it will probably be programmed from your mobile device I mean it's already happening now so there's just some quick ones but what do you think yeah hopefully this looking short is over by then so I don't know I really don't know I kind of predicted that so I don't know how good these predictions are okay question you sell SPI flash SD card chip format, any plans to put it on an ESP 32 or S2 I think you would just use a longer feather wing I think those chips are cute but I don't think a lot of people would pay to have it on a board you know most people are really doing like a micro SD slot instead of a micro SD 32 S2 is it BLE or Wi-Fi or is it possible to use both at the same time as a bridge for example I don't know you really have to ask Espressif because all that stuff is controlled underneath in the firmware so your best bet is to check the Espressif documentation or open up an issue in their forms we shared a snapshot of the E&S S160 VOC sensor breakout while building the prototypes would you solder bridge or any sensor I asked because there are nine pads in the grid pattern there are nine pads but the center pads ground and so is an outer pad so it's not like it's not that bad yeah I would use solder paste and I would just use our little hot air plate or hot air station and you just make two of them and usually one of them works out it's not as bad as you think just make a prototype with flash on ESP 32, C3 DevKit O2 with the latest CP but on the download it refers to this other one but then wording in the title description refers to this other one after writing the bin file nothing happens that I get the right bin file I really don't know what you're referring to so you should open up an issue in circuit Python or on the forums and maybe there's a link wrong this has a bunch of letters in it this is very detailed this will be hard to do but we'll be able to help you out I can't see the computer I don't even know if it works in Arduino to be honest oh cool marks going to New York City for a few days first vacation in two years what's your suggestion for a less known place to visit some folks said you get the high line there's a Ukrainian restaurant there is a gigantic fan Star Wars experience thing going on that's just like that's always fun memorabilia I would say check out there's a website called secret NYC that has whatever is going on this particular weekend there's a lot of art stuff definitely go down to the Bowery area and check out the gallery it's fun to see the gallery shopping it's free you just walk in and then you can just go to the eatery Lower East Side is pretty cool still hit St. Mark's hit St. Mark's and one place on St. Mark's I would suggest to go to is Barcade you don't have to drink it's an arcade and that's a lot of fun and kind of a neat row of all sorts of different international restaurants and more lots of great Japanese food lots of great food you can't go wrong with them Naomi what was testing UV bulbs for germicidal uses new UV sensor work to verify UV wavelength no because that's UVC and most people are not exposed UVC so a lot of sensors aren't UVC the sensors I talked about are UVA or UVB which is like what the sun gives off yeah one of the other things when I was talking about how the next 5 to 10 years with mobile phones one of the things that we're seeing now too is and someone mentioned in the chat a lot of no-code solutions and things like co-pilot where you're using natural language to say what you want to do that will probably help people code quite a bit today OpenAI released this really interesting preview of how AI is making art and it's really taking natural language and then making art in a very specific good way and if you look at some of the things with co-pilot so you can imagine it any person saying I would like to get the weather on the screen and I would like it to be displayed in this way and the code will help along like you'll always want to do more later but that seems definitely with the next 5 to 10 years you'll be able to do more block based for sure but probably natural language coding next question I've been having a lot of trouble uploading code to the Feather S2 with Arduino I need to burn a new bootloader over the pre-installed UF21 so the Feather S2 isn't actually made by us we make a separate Feather called the Feather ESP32 so you should contact unexpected maker and they'll give you tech support a lot of people mix them up but if it's the Feather S2 we don't make it so I don't know actually what's up question what kind of touch screen that could work outside like resistant to rain and stuff either resistant or capacitive the problem is it's very very very very hard to make electronics that's resistant to rain and stuff being outside is extraordinarily damaging to electronics and enclosures so if it has to last more than a couple days you really need to work with someone who's done that kind of stuff before because weather proofing electronics is just really really really hard okay oh Timon's here thanks for the exhaustive coverage of the Panorama tune in a bit late welcome congrats on the product launch yay let's show it again it's here and we have the pro we got both in the store alright you can ask Timon all your questions for things I don't know because I literally just looked at it today for the first time yeah I think that might be it oh do you know the pitch of the LEDs for the cubes we're doing 2 and 2.5 so try and keep it small but we have a curb cut design okay it's hot glue enough to protect wires from water in a plant for a plant sensor not at all it'll come right off you need to use marine epoxy which will take 5 days to dry yeah okay folks really like the new products this week thanks so much and then let me just bounce over to this other one I need a replacement adapter for an Atari C240 it's a lady to have a recommendation for 3 wire 16 VAC adapters oh like a center tap transformer yeah that sucks um if you're advanced you could probably just get a center tap transformer from digikey and just carefully wire it up to a suicide cable and that'll give you 16 volt AC center tap but you can't really buy transformers based power supplies anymore because they are very bad for the environment there's a lot of current but you can build one don't follow this advice if you're under 18 or you're you're not sure how to solder a suicide cable to a transformer safely alright and I'm going to tell uh uh mark on your visit drop me an email um I'll make some other suggestions I'm thinking of we've also kind of been in one spot for 2 years but we walk around New York if you get a chance I have a little island that's how it's fun it's a little trendy but it's still it's worth it yeah well you know one of the great things about living in New York is you get to go to all the tourist things and it's still it's cool it's fun Central Park is always a good thing to visit as well anyways any plans to use a mag to update the magtag to use the s3 or c3 in the future it never uses c3 because c3 has almost no pans I might update it to the s3 I don't know how much benefit it would have though since you know the wifi works very well and on the s2 I don't feel like we need vle for it at the time so it's on a rush and last question have you checked out any of the quantum computing platforms I've actually asked Lady about that there's nothing that we can kind of get our hands on there's the practical applications they want to know about for the google cirq or the quizzic frameworks you know it's one of those things where I think it's the technology is getting worked on and how it'll be used the practical applications is the the unknown so that's the piece where it's like it's the solution looking for the problem type things so it's just hard to you know if you've seen how these work and everything it's like well I don't have that much liquid nitrogen hanging around to run one of these things yeah that is our show for tonight everyone I want to thank all of you out there digitfruit is the code special thanks to Jesse May who's running things behind the scenes today and our slack channel special thanks to everyone at the slack channel and the discord channel and we'll see everybody next week full week of shows and more we want to thank you for all of your help and support we're really tired we're going to go to sleep now and then we're going to win some repeat alright thanks everybody we'll see everybody next week this has been an Adafruit production goodbye everybody that was your moment of zener