 Life from New York. It's asking engineer. Hey, buddy. We're back. You thought you were rid of us, but now we can't be kept down We can't be held back. We can't be crushed underfoot. It's me first stage orders Then they fought us and they made fun of us then they um Then they reply guy you and then we show up It's me lady Ada with me mr. Lady Ada also known as the comedic relief our back hosting ask engineer last week was Super daddy We're um, yeah, just to give everyone a heads up word Having some of our remote team who have been visited in a while because there was COVID and everything going on hard to coordinate a Bunch of people so we had everyone in town. So we just had to shift some things around we did show and tell We'll have some of the segments from last week's Ask an engineer on this show and then we have a couple catch-up segments We do and then we had a desk lady and we'll talk about that during this week's show and more speaking of Let's kick it off. What's the cat mr. Lady Ada the code is h usb husband Yeah, you're my husband. Yeah, it's 10% off a native fruit store all the way up to 10 59 p.m Tonight user to lose it save a buck or two. We'll also talk about some of the free stuff We'll talk about some of our live shows to the show and tell we said show until a few seconds ago Desk of Lady Ada will have a bit of recap including the great search We have JP's product pick of the week some time travel news and more going on We have some advanced manufacturing being your city factory footage We've got some 3d printing. We have four videos altogether tonight because we're catching up from last week We have some iron MPI this week is Texas Instruments, of course brought to you by Digi key We've got some top secrets some things we wanted to show last week, but we're gonna show them this week new products Well, that's your questions. We do that on discordator for dot a t slash discord Go there. That's where we coordinate all of the questions and more because we're broadcasting all over the place Every single week in some way ship or form all that and more on you guys to ask of engineer. That's us. Okay, so for the code it's each usb Use it you get free stuff for the galley data. Ah, our freebies are enabled and in action We've got a new crop of freebies 99 dollars or more you get this beautiful PCB coaster with a gold if logo comes with bumpers too I use them around the house It's great to have coasters and if you order more than a couple times a year you'll get multiple casters to complete your set One for a nine or more. We still have the KB 2040 all-in-one dev board for use with the rp2040 chip. It's pro micro pinout compatible It's got tons of memory rp2040 chip buttons neopixel semi-qt port. It's a great beginner my controller board Free UPS ground shipping orders two hundred dollars or more We still have UPS and hit better rates and ever which means it's even easier for us to offer free shipping when you order 200 bucks I'm the indifferent job. That's right And then last but not least we are still doing our promotion with nxp and digikey and us It's a trifecta of goodness a Triangle of wonderfulness. It's the IMX RT 1011 with micro SD card metro A great way to get started with an amazing crossover processor that gives you 500 megahertz of Cortex M0 deliciousness 120k of RAM 8 megabytes of Q-Spy flash and a built-in micro SD card and you know with circuit Python support It's so speedy. It's a really roomy processor You can use with various Arduino shields or just if you want to experiment with Python on micro controllers. Yeah, and don't forget all that stuff works with the discount code H usp. Okay. We did a bunch of live shows over the last a week or so So to catch you up the first one. We'll talk about is show until so show until Scott talked about. Yeah Well, we what yeah, so this week's on show until Scott showed some latest updates where some circuit Python stuff were Yeah, the expressive. What is it the idea? He's doing this IVF 5.0 and 5.1 update to circuit Python So we're adding more chips such as the C6 which he demonstrated. Yeah, and then jibler had a really cool keyboard Yeah, the Pico inside of it model M It's like a buckling spring keyboard and they actually ship with an RP 2040 Pico Which means it was super easy out of the box essentially and then JP came by a lot of neat synth and music stuff showed a little app that you can do things with it was called feud machine you feud machine Machine, that's what you thought. Oh, yeah in the band feud machine. They're gonna have a cool necklace. Yeah See we're gonna show that It's a guide to guide and we have a video that we're gonna show this week And then we also had and and was showing off Some of the latest and greatest with the like a little Star Trek capacitive That's thing. Yeah, it's saying which is cool and then Paul came by with this neat I found library that does Shazam so it gets the sound of the song and then it displays it Yeah, and then they just go to and then DJ Devon had like a little square of like the Vegas sphere It was a cool really big display. It was a really neat thing. It's we were talking about this in the one minute between the show It's pretty amazing that you can have a matrix display That's driven by a microcontroller now. That's like low-cost This used to be really hard expensive and impossible. I used to be you need a full Windows computer Did not run anything on or you could well you could use other computers when you have an HDMI? Receiver card and then a transmitter card. It was really tough to do It was like 500 bucks for the cards and then you know Like it was very it was to program it you'd have to write code and have it on your Windows machine Now it's standalone and once I'm at ESP 32. Yeah So we're in very long And don't forget show tells every week some 30 p.m. Eastern time Every Wednesday on Sunday we did a desk of Lady Eda because we were catching up on things and we're showing off stuff What was part one of your desk? Okay? Well first of all showing off the New 2.4 inch TFT feather wing which I'm slowly trying to bring out of retirement we also showed off a max 3421 a support in TV USB It's got merged in which means that I can resuscitate this very old feather wing design for the max 3421 there's Arduino library, but I really wanted to use be support So it would work with Arduino or circuit Python and then of course the H usb Which we have in the star store today, which is why that's the code that we do just play data This is printed by digikey Partner with this and it gets you the things you're looking for on digikey.com What did you help people find? Yes? Okay, so on the great search this week? We had somebody because a few weeks ago we covered SWD ports Two by five connectors that go on our feathers or metros and somebody's like Hey, is there like a low-profile way or a smaller pin version of this and I was like, oh, yeah I'll tag connect. That's very common. So I wanted to show off tag connects available at digikey You can get a variety of cables and contacts And it's a you know, it's not always a proprietary, but it is You can only really get tag connect connectors from some company I believe they have a patent on the design But there's also a if you don't want to use tag connect. There is a way of doing it with sked connectors there was a tweet By Arturo 182 and then another person whose name I can't call showing off that the worth electronic sked connector is a press fit connector that's I think point one inch spacing And it also has this press fit capability. And so if you want To use a non-tag connect version of a similar connector This is an interesting Version that you can use for any other press fit needs as well So it's it was a twofer. Okay. Um, and then we have JP's product pick of the week We're not gonna do the week before we're gonna do this week's This is when JP shows you something from the product page that just comes automatically applied. Here's this week's highlight Is the cutie pie esp 32 s three This is the version that has four megabytes of flash and two megabytes of ps ram You can do so much on this use circuit python use arduino It's got the wi-fi built in this has native usb I've got my cutie pie right there. I have the i spy bff there that allows me to plug in an spi Display look how quick this thing boots up. I'm gonna go ahead and Plug that in and boom up and running esp wi-fi Analyzer this thing will check the local ss id's in its area based on the little tiny antenna it has on there And give you a display that tells you about the strength of the wi-fi signals that you're seeing that right there That is the esp 32 s three cutie pie with four megs of flash and two megs of ps ram Okay, JP's workshop is tomorrow and then friday sometimes it's in time sometimes it's scott this week It is scott deep dive with scott friday to 2 p.m. Pacific 5 p.m. Eastern Learn about all the innards of circuit python and more First up we the took the week off our pcb of the day so We've got so many So uh some weeks we try to do a pcb of the day, you know every day sometimes it's like once a week or whatever But you can check out these little vignettes and movies and stuff that we have We're experimenting with voiceover. It's not ai lemur is just a good administrator And so you might hear the voice of lady to talk about what the pcb of the day is Anytime we use those ai tools we let everyone know i don't like the robotic voice So i don't think we're gonna do the text-to-speech with the robot voice I think we're gonna do we have a night we have a work flow The other thing is this is nice for accessibility because someone could just listen to it and uh hear Some of the things that you can do with uh, whatever chip or whatever thing. Yeah is working on. Okay. Let's do some python on microcontrollers Okay First up before we even jump into the newsletter. We want to say Happy trails and more to catney. It's not goodbye I was saying in our meeting. It's like we'll see you on the other server instances Uh, catney is the one who came up with code plus community Has been in the circuit python community doing a ton of stuff with data fruit getting us In the discords. Yeah on github on the learn guides pack on so, um, catney's not going to be Doing stuff with data fruit, but still in the community still doing stuff in the world I'm sure you'll see uh all those things catney's up to uh, but we wanted to say thank you so much for everything You've done catney Uh, we're rooting for you and all the things and i'm glad data fruit was a stop along an awesome journey. Thank you so much Um We'll uh, yeah, uh, and everyone in the discord. I think catney's in here Send your shout out. Please send your shout outs and we call them hug reports and more a lot of folks got their, um Introduction to data fruit via catney. That's right. So um, and they're doing stuff So that's what it is to be a community. Thank you. Thank you. Thank you. Thank you. Thank you So let's do some newsletter stuff. Uh, i'm going to ask lady just some questions in a moment Um, but first, uh, the circuit python 826 releases out. It's basically just like search for good stuff Yeah, um, but uh, you can check that out if you're interested Lady aida did an interview on podcast and this was a prerecord because it was really hard to find time so they did a prerecord and the more steps through the Library creation using chat to bt4. Yes So far it's interesting it seems like we've um I think someone had to go first and say like here's how we use these tools and here's how we're going to um Uh show our work. So we post the full prompt logs Uh as lady aida interacts with it and we put that as part of the read me in the Github repository for open source libraries and we also disclose all of the stuff If and when we use any type of ai tool these things are here to say so we thought well What's the best possible way to show that we're doing this? um If we use things like even co-pilot we'll we'll say it but we think that's the best way to do it Yeah, I posted my um my my log with um open ai and other people said that they actually enjoyed that because they could learn Yeah, how I you know like people you know one of the questions the pie chat they asked was like How did you know this is the prompt to use and I was like I didn't like it took a couple tries guys Like it was like night number three where I was like wait I finally got the right prompt, you know to get it to um write the code from the data sheets and so Um, you know I chat about that and licensing. Yeah, how do you feel about it being able to imitate you? And I'm like I think that's great for me We're in a unique situation and I and I get that's why I think folks were scared because there's like a big there's a big Gap between like it's the worst thing or it's the best thing and there's nobody really in the middle talking about like well All like all bits of technology. You can use it for bad stuff Um, and there's crediting and they're sourcing but in our particular case The code that lemores using is lemores code. Yeah, um, she's just interacting with it with this Large language model, which is kind of an interesting use case There's probably not a lot of people doing it the best analogy I can think of Only because this is probably going to be in the news is like so an author who has their stuff somehow in these large language models Um, having it be like a writing partner in some way Or like an assistant in some way so human plus AI powered things Um, so we'll see how it goes, but you can watch the whole thing. It's um, it's uh, it's on now But the thing I was going to ask you is IEEE they do their top programming languages each year And uh, python continues to you know, pop to the top and it's usually because of You know data Sciences now it is because or at least in part People are using it for microcontrollers or things like raspberry pi, but what's the um, I'll do five. What's the five programming languages you use on a regular basis if there is five Um, what do you use them for because I feel like you're the you're the poster child for Um, you know engineering and programming in a lot of ways. So what do you what are you using and what are you using it for? Yeah, it's funny. I'm looking at these little arrows and they're like sql. I'm a why don't sql I do use it, you know, almost every day, but I don't Which I guess I guess it's mp complete or add an apple complete. Uh, it's um turn complete um So for you know, uh electronics and the kind of work I do I use python a lot. I use it on desktop and I use it on microcontrollers I use Arduino to see c plus plus Um, we do use assembly once in a while not as much anymore, but I do use it Um, and you know java script. We have also java script for my controllers and the type script We did by script that recently came out The the bulk of it is you know python and cc plus plus and then maybe a little smattering of assembly That's what you're doing right now. That's the most of it. Yeah, and then for some of these like Things that you're like gluing data together for Um for like web stuff. Is that also python python a lot of it? Uh, like data like data Data base or data source manipulation. Yeah, like ironically like I'm doing s you know I do sql every day because I'm kind of like doing some data analysis stuff on um, you know data fruit You know manufacturing production management side and you know, I could run like queries in sql to do it But honestly, I just I just have the python iterate through it and Yeah, like instead of trying to like left join and get that right and I've been using chat to bt to try to write better queries But honestly, I just I use python to like iteratively Uh, determine stuff and then you know, we were doing the open source hardware Um, yeah, that was helpful for me. Thanks python. Yeah, that was helpful for me because I was going to try to go another way and um Instead I used open ai's um chat to bt's code tool And I explored a jason file kind of asking natural language things. I looked at the python that it was Generating generating to make sure it was like what I wanted Um, but you know, what's interesting is it it I wanted to know when it thought we would get to a certain amount of open hardware certifications But because it doesn't really know other than the dates of the certification, which are actually when they're approved It's hard to like oh linear regression. Well, this is a way to do it Um But we were beating it's it's estimated just because the more it's doing a lot of hardware revision. So that was kind of cool Okay. Um, so thanks for entertaining my question. I figured I would ask an engineer Um, what languages are you actually using right now as um right now? Uh, I'll I'll as of right now The number one certified open source hardware company in the world. We have 695 certifications. Well, we're not gonna we're not gonna always be maybe we'll always be the the top certified company doing Releasing designs, but right now we are. Yeah 695. We're very close to 700. So I thought this would be a good tie-in like Okay, this is this is what you're producing. What are the programming languages? You're actually using and looks like a lot of python and a lot of C Oh, you know, I write um Scripts for you know eagle cat and that's also in C just kind of funny to see like yeah Okay, it's interesting. All right. So we're getting close. Um, if you want you can sign up get this delivered to your inbox every single week on a different daily dot com Let's uh, you know speaking of um source hard work We have a bunch of guides tons of them. Lady. What's on big board this week? Oh, so many guides. Okay. So uh new guide from noe prejure and liz of the synth guitar With circuit pythons and thios. This is a remake of one of their older one of the first projects. They did Um, I've been sort of saying like hey now. It's a great time with you the prop maker feather, especially a lot of projects that we can remake Um, since we make them so uh taking a break from and we're going to do new stuff But we're doing a bunch of remakes. Uh, check that out. There'll be a video Right next week, but you can take a look at the guide if you'd like to look now. It's got like eight You know, uh cherry on max compatible keys with rg backlights and like three encoders to set change settings a built-in speaker Um, it's pretty sweet. Uh, we also have uh catney wrapped up the guide for the metro m7 Uh with mic resty. That's that giveaway board. We're doing yeah, erin It's a little mini guide. I'm making scannable links for link tree or venmo or paypal We'll see we'll show the video Have a couple guide updates and these are ones that you can catch up. Um from last week Fundamentals. Yeah, and the tombstone prop maker to prop maker and the 2.8 inch touch shield that was updated because now we have the new version So a bunch of guide updates and a few new ones as well Yeah, and we're gonna show the video from erin in just a second But I did want to mention that we also have playground Um, we don't know we're gonna call these these might be like posters showing tells in the playground, but these are um guides that anyone can write I wrote this one and I'm also an author on learn, but you anyone can make guides that appear on the place This is teaching our kid different language with uh Some kids books and so this is so everyone kept asking I really like the learn system Can I make guides there and uh, one of the things we don't want to do is do uh, it's not a ding on like Haxter or instructables Um, we don't want to turn our site into a contest site or have like interstitials Or you have to log in to see the whole thing or there's ads everywhere We want to just to have like the best place to author um, so we're releasing the authoring tool for learn in a very Um one step at a time way so you can make the same type of guides that we have on learn data for dot com But you don't have to be an official guide writer You get to do that yourself. We're calling it playground. These are like show and tells and these are just like fast light weight ways Single page notes that you can make as many as you want Um, stuff that doesn't really fit in the learning system. Yeah, it's like some images. Here's here's storage boxes Um, here's 3d hangouts this week. Um, by the way, we respect you not track. That's why Yeah, that's why it doesn't show I always get asked like why does it have that on the side? It's like, yeah, we actually we actually do that So you can check this out. Um, it's a very quick easy way and anyone can um, start to go Yeah, and I get you know, I Wanted to when I sent you the links will post later as I do want to I will promise and you can always link to this video That there will not be interstitial ads. There will not be pop-ups. There will not be toast There will not be signed in to see more There will not be that annoying fade out where you're like reading and it's like to see the rest of the article You scroll and like the text drops off and it's yeah, so the the I'm not gonna do that Yeah, and the reason why we're gonna do that is because we have a business model Which is like buy some hardware buy some electronics from us. That's the best way to support us then it's open source Um, so and you know a lot of the people who work first This is we pay them. We'll never have a thing that says donate two dollars or jimmy wells is gonna die like And that yeah, we're just doing something a little different Okay, they can do that. It's cool. Yeah, is it uh, is it is there money being left on the table? Yes, but we don't want to Monetize all of y'all with your personal data in anyway So that's what we're doing. Have your ad blocker on or have it off. It doesn't don't matter I won't have the thing. I hate the thing the second you have an ad blocker. It's like, yeah, I deal Yeah, because it's impossible to use your site without one. Yeah, we don't want to track you and do any of those things All we want to do is serve the great content that folks are writing Um, anyways, this is my promise. That's what we're doing. Yeah, no Christmas trees No sign up to see content. Yeah. All right. Let's uh play Aaron's video For today's project. We're using nfc tags to create scannable business cards and tap to pay venmo links Use the free nfc tools app to program your tag You can program it to launch any url on an iphone or android smartphone I programmed mine with my link tree info so new friends can follow me on any of my social media links These tags are small and light enough to hide just about anywhere on your outfit Connecting just got a lot easier. Just tap any nfc enabled smartphone to the tag And watch the magic happen You can also create tap to pay venmo links to make money transfers a breeze See a full build tutorial at learn dot adafruit.com and remember to click that subscribe button for more fun projects All right, let's do some factory footage factory footage We're gonna do some 3d printing And we're doing some ketchup And mustard and mayonnaise So we're gonna play these videos back to back. Okay, there's the uh tombstone video this glowing thing And then a halloween Overview, so let's uh play the mob. We'll see you the other side. Yeah, I'll see you soon You can build an interactive tombstone for halloween with adafruit's arpi 2040 prop maker feather happy halloween This ghoulish prop features an rgb led matrix neopixels sound effects and a servo controlled raven It uses a time of flight sensor to detect whenever someone gets close and triggers the sound effects the servo and neopixels I smell children The rgb led matrix displays a scrolling message to warn or welcome would be trick or treaters The tombstone is an off-the-shelf styrofoam prop It's easy to work with so we were able to cut out channels and recesses for the wires and electronics The arpi 2040 prop maker feather does most of the work and the matrix feather wing makes it easy to plug in an rgb led matrix Circuit python has built-in support for rgb matrices using the display i o library The code features adjustable parameters so you can customize just about every attribute in this project You can get the parts to build this project links are in the description The raven is 3d printed and hollow for fitting the servo and neopixels The time of flight sensor breakout has a protective sticker over the sensor that'll need to be removed The matrix feather wing is set up with headers for plugging on to the bottom of the rp 2040 prop maker feather The two can then be plugged into the hub 75 socket on the back of the rgb led matrix A hot wire foam cutter is used to create the opening for the rgb matrix display and a piece of black led acrylic diffuses the leds The two neopixel buttons are wired together for adding a glowing effect to the demon atop the tombstone The eyes are then carved out for the leds to shine through A speaker is fitted into another recess with a press fit cover to keep it in place The time of flight breakout also has an opening for the sensor with an accompanying back cover A piece of foam core is secured to a servo horn that press fits into the head of the 3d printed raven An additional set of neopixels are wired together and fitted onto another piece of foam core with a cutout to secure the servo motor The raven's head is then press fitted onto the piece of foam core Additional extension cables are used for the servo motor and neopixels Pieces of black conduit is used to help keep the wires bundled together and hidden The feathers on board stem acuity port and screwblock terminals make it easy to connect the various components Everything gets powered by a 5 volt 4 amp switching power supply so we can haunt all night We had a lot of fun building this project and hope it inspires you to check out Adafruit's rp 2040 prop maker feather in circuit python And that's the halloween inspiration Spookalicious, you have plenty of time to start on your halloween project either for this year or next. It's fine. So it works Um, a little bit of a break. Don't forget the code is h usb. Let's do some uh ion mpi. Okay Ion mpi brought to you by digikey. Thank you digikey and this week it's texas instruments lady You know, what is the New product introduction of the week this week. Okay this week We are back with a classic ti and they make such cool stuff And we're going to be looking at their tmux series of analog switches Uh, they come in t-stop. They also come in qfn, but this is the icon that go on the jiki site um, so the tmux 821 series is sp st analog switches, um, they are Fully solid state, uh, not the same as a relay or Even a solid state relay. These are analog switches that are meant to pass analog Signal back and forth, but they're much much faster than realized on the mechanical Um situation they don't click and they don't get oxidation Um, and uh, they're definitely a lot smaller and less expensive than solid state relays Uh, you know, they you saw the package is just like a 16 or 18 t-stop Goes on your board and it can switch bi-directionally signals that can go up to 100 volts which is very high This is a particularly high voltage Um analog switch and then you can control the switch open or close with your logic levels way below 100 volts It goes down to 1.8 volts. So let's take a look at what we've got here Um, so you are familiar with your standard push button switches You want to connect analog signal back and forth. You can use a push button switch or a slide switch toggle switch The gk has tons of those if you don't mind, you know having a you know mechanical connection These work really great. You want to switch um audio signals from you know, uh headphone to Speaker and you don't mind having a button or a switch, you know before it will do the job quite well Um, and there's like, you know hundreds and hundreds of thousands of options as well This is just the push button switches, but for toggles and slides, which is um, there's also a ton of options but these are mechanical switches and so somebody has to like Mechanically press the button or flip a switch. Like I said, you can use a relay But really they're really really big and they're loud and clicky And they do fail after a while because they eventually oxidize and so an analog switch is kind of again you know mysterious and mystical thing It acts just like your everyday normal Mechanical switch except that the thing that connective just connects is a signal a digital signal In this case, they are implemented by having two back-to-back and fed and p-feds and um, you know by manufacturing this on your silicon and doing good job with Isolation and the specifications you can have it be a bidirectional switch. So Signal can go back and forth between the two sides. So which is interesting most people think of you know a fed switch a p-feder and fed switch is sort of a a unidirectional you want to send um connect a source voltage to a supply sorry a source voltage to a sinking mold Sinking load you can do that with a switch But in this case, you actually have you know true analog bidirectional communication and in this case it even goes at a much um It can go a fairly high voltage 100 volts of common mode between the two One nice thing about having analog switches is you don't get switch bounce. So like I mentioned, you know relays are often used in sub situations, but um You have especially for telecom, but you will get chatter. You're going to get oxidation and they will fail eventually whereas what's nice about these analog switches is um, you don't have You know when when they switch they switch on pretty much instantaneously So you can switch back and forth multiple times after worrying about oxidation or switch failure But there are some downsides So one downside is that when you're dealing with a mechanical switch when it's closed versus open It's basically either a short like almost zero ohms point zero zero one ohms or so And when it's open it's infant ohms. There's like no connection between the two contacts When you're dealing with a analog switch, there's always going to be some resistance. So when it's closed It's not zero resistance or even point zero zero one It's five ohms, which is like not a small amount and in this case it is also Yeah, I think it's like seven to ten ohms. You can get very low rds Sorry are on analog switches. This one is medium You know, I did compare this with the cd 40 66 A common low cost analog switch and that was like 120 ohms. So this is too bad five ohms or so And when it's open, it's not truly truly open You do have some Leakage between the two in this case. It's 10 mega ohms. For example, you can find the specifications for the actual um on and off Resistances are in the data sheet In this case the on resistance is yeah, it's about, you know, five to 10 ohms depending on the temperature It is pretty consistent like you're not going to get a high variation with temperature. It's kind of nice Some switches make sure you check this check the spec sheet with temperature and voltage the you know, the specified resistance on the front page of the data sheet may go up quite a bit And then you can see the drain off leakage. So that's how much current will leak between the a and b contacts Another thing to watch out for with analog switches is you do have to it seems obvious in you know hindsight but if you have an mechanical switch the Voltage that you use to turn on off say the relay Does not relate to the voltage that you're switching, you know, you can turn on off the relay with three volts and then when you're um Switching sorry you this the voltage you're using to turn on and off the relay can be like three to five volts And the voltage it's switching can be up to like 220 volts ac uh in this case You do have to provide with these analog solid state switches a Plus and minus voltage that covers the total voltage that you're going to have On the a and b pins. So for example, you want to switch A voltage um analog voltage that can go as high as you know, plus minus 12 volts Um, you'll have to provide vdd with 12 volts and be assessed with negative 12 volts So you'll have to cover that total voltage because you have to have your MOSFETs conduct. So Watch out for that. Don't assume like oh my logic level is 1.8 volts So i'm going to give it 1.8 volt for the vdd now it has to be as high as the highest voltage You're planning to put through the analog switch Okay, next app They are not isolated. Uh, it seems kind of obvious, but you know, uh, compare it again to relays or switches where you have some Uh physical space or plastic between you and voltage. That's not going to happen here It's all on one chip. So you can get a separate digital isolator You know, I just quickly looked up on ti.com and this came up Um, there's silicon and opto isolating. Um, either will work just great But there are some nice things that are, uh, you know, like I wanted to give you the downsides of like Hey, watch out for these things. I have definitely been bit by some of them But some of the good things are, um, I like little details like they have, uh, the built-in Pulldown resistors, so they're automatically enabled or disabled by default Uh, there's a nice failsafe, um, so that if you apply voltage to the selection pins And for some reason the voltages aren't on the power pins You won't blow up your chip. I have absolutely done that. So kind of nice to see that. There's also, uh, Designed for latch up immunity, which is going to be very handy. You do not want your switches to latch Um, like I said, the pulldown resistors are built in and you can run them off of very low Logic sometimes the logic used to switch has to be similar to the voltages that are the highest and lowest VDD and vss in this case you can use your normal mic controller voltage But you can also go up to 48 volts. So if you are using a microcontroller, if you're using some signal Coming in from your product or project, uh, you might be able to use the working voltage if it's like 24 or 48 volts Um, there's three variations the 82 11 80 to 12 8 to 13 The only difference the pinouts are the same. The only difference is whether they're, uh, normally connected normally open Or alternating normally open and normally connected No In stock right now all three versions. So, uh, And lots of them in stock too, which is kind of nice. Uh, sometimes I'm like, no, there's only two Uh, they sell out but in this case, um, very handy really useful often for audio video Um, I don't know if this would be necessarily good for usb. You should check that whether the high speed rating would be Uh useful for it, but definitely av switching, um analog switches or test equipment We want to connect like different voltages around not good for switching big power supplies But I think you can do about 200 milliamps and that's this week's sign of god We're gonna roll right in new products new new new new new new new new new new new new new new new new new new new new new It's now it's time for a new What's new coming soon Uh, the ad 5693 we've had requests for more bits on the dax People always emailing you. You know the email you get out of the day. Where's my 60 bit dinner? Where's the bits on that more bits? We have a 12 bit deck now. There's a 60 bit deck coming soon But we've got some photos taken and then we have some round displays are coming soon These are going to go fast to sign up. They're in stock, but we don't have the driver board But I didn't want to mention that if you wanted to pick these up I will mention again that the connector used is not the standard 40 pin connector for tfts But our upcoming qualia s3 board is going to plug into them. Yeah, maybe bite and then just hang on to it for a couple weeks Then we'll have the board support. Maybe we'll go to overhead a little fast I can just show that what this goes with so yeah, you do need a special board to drive these with in this case You know, we're just coming soon that these like hot off the press. So they're not in the store yet But you'll be able to connect the we're trying to make it easy because there's companies that sell like interesting displays, but Nothing nothing works the code you get doesn't work or it's just only that demo. Yeah, we're trying to Make sure that folks have you know some thing that they can build off of and yes, so that's going to be the board What's going to be the yeah, it's going to be the board Rgb 666 that's what these i'm going to call these rgb 666 because they're 18 bit color So you've got both the capacitive and non capacitive round touch We'll have demos and videos for these soon, but just uh, just want you to see the scale We've been as fast as possible. So that's why uh, you've seen these things going into the store as coming soon or or In the store as we're getting the board to drive them. Yes. Okay next up Next up there's a revision to the 3d Hand sensor. So this is for gesture Detection and motion. Um, it's from ultra leaps. It's their news. I think 3di is the model number Um, the new thing is it comes with an amount now instead of a tripod. So um on the back photo Yeah, this multi mount comes with it So it's easier to attach to like a monitor or to the wall or to a table Uh before came with a tripod probably was easier to accidentally have it fall off the table No, it's like more mechanically secure next up Next up we've got uh, some handy usb cables that have a display built into them Uh, so if you stop here, you'll see this is a close-up. So this is a um android Phone that's plugged into a wall adapter that is able to provide seven watts of power For usb a this is a you know It's a usb a to usb c So you're not going to get a power delivery with a lot of wattage. Um, although this cable can handle 66 watts But if you might have quick charge, uh, but for the most part it's good for You know your five volt one two, maybe three amp Output current capability This is useful because you know a lot of times your Phone or your device has maybe some special charging capability But it has to match up with the Charger that can provide that quick charge or you know usb power delivery And you can't really tell how fast it's charging like you can see like if charging or it's not but you can't tell Is it doing a better job with this adapter or the other? And so what's nice about this is that it just shows you a number The higher the number the faster it's charging. So if you have multiple chargers around the house You know use this plug into all them and whichever one is giving you the highest number That's the best match Um, you know, there's nothing like a usb cable Standard to come up with more standards that are all incompatible. So Um, this is just another example plug me into a power brick that can provide seven watts and then per laptop also Um, we'll also have a usb c to c version of this cable And that will of course be able to do much much more power because usb c can easily go up to 100 watts Okay, I started this show besides you lady our team our customers and It's higher. Can you hear the next thing we say you go is The h usb 238. Yay. I've been working on this for a couple years It's suffered from the silicon shortage now. It's back. This is a really cool chip. Um, so we like usb power delivery here It's a great alternative to infinite dc power jacks in a bin in your basement or under your bed Um, or you know having usb a cables that can only provide you with five volts maybe two amps max So usb power delivery for usb type c and we have a guide all about it Um, can give you up to 20 volts and up to three or five amps depending on the whether the cable can handle it And that's really great because a lot of times you have say like a monitor you were showing me and it needed You know 18 volts three amps and you're like, where am I going to find an 18 volt adapter? Well, if you have usb power delivery, um, it's easy You have only one adapter and that adapter can provide any voltages you need So, um, let's go to overhead real fast and I'll show power delivery power supply So this is a power delivery capable power supply and you'll see here. I mean this has a couple outlets That's why you're really why is there so many numbers because it can do 100 120 and then this is an 18 watt adapter. So um, you see here on the usb c it's like, ah, I can do up to 100 watts Five volts three amps nine volts three amps 12 volts three amps 15 or 20 Up to five amps, but you're like, how do I actually get that out? If you use a normal usb c cable Um to your device unless you know how to request those higher voltages You'll always just get the five volts. So you need a chip that talks to or firmware that talks to the pd Source chip in here you do the sync chip type of the source chip and say hey I want you to give me 20 volts. It's not going to give you 20 volts by default It'll always give you five volts default and you have to request the higher voltages And that's where the h usb comes in. So if you look at the, uh, top of this board By default, you'll see there's a jumper that says five volts if you cut that jumper and solder closed the nine 12 15 or 18 or keep it open and it does 20 It'll automatically request from the power supply that voltage that you wanted And on top of that it also has a usb So iSport c interface that you can use and we have a library written Arduino That you can tell it the chip. Hey what voltages are available? And then you can pick and choose dynamically changing the voltage So, you know, your your robot or your motor or whatever starts out Uh, and you're like, well, let's try nine volts and then some at some point They're like, wait, I need even more power. You can boost it up to 15 or 20 And you can adjust back and forth based on what's available. So let's Look at this demo. I've got so I've got here Let me do this. No, let me Live demo it's live demo time Uh I was going to I have this being not upside down, but I think I can't so I'm just gonna Hold this and do this. Okay. Good enough. I want to focus Science Okay, so I've got here Uh, the h usb and this is plugged into One of these wall adapters. I just showed off with the usb c ports and can provide multiple voltages And then um, I have here a this is just an esp feather I just chose it because it has a nice display It is communicating over I squared c I've got it wired up to i squared c and it's requesting different voltages and then If I plug into here No, if I plug into so I'm gonna leave this okay, this isn't a ground Um, and I have my multimeter And my multimeter is Working there you go You can see that the voltage coming out is in fact Going from 9 12 15 up to 20 and then it cycles back to five So you can dynamically, you know change whatever voltage you want you request what's available and then you can cycle through it Um, but if you don't want to Use a mic controller, you don't have to so Try unplugging this um if you Hold on I have to reset this because it was just You know it was just programmed over i squared c um So by default I have this jumper you say I try to be jumper setting I have the 12 volt jumper set And so by default it will now give me 12 volts output. So you don't need a microcontroller I you do need to power cycle it if you just programmed it over i squared c But by default it will go with what the jumper says and then over i squared c you can set it to something else So it's kind of the best of all worlds for usb pd It's inexpensive. I've got this nice um chunky past transistor here and um Set it with jumpers if you like and it's fixed You can solder in a terminal block if you like or use i squared c and you have you know a more uh dynamic Uh customizable usb pd experience. So you know either way Also, you can use it with a mic controller and not use the i squared c you can use it to get your voltage and then um Yeah, this could do some some other work with the um Over usb because I have the D minus and d plus lines brought out here. So this could be your main Connection for usb c and then this goes to your microcontroller just One I just got to warn people this v plus pin. Don't forget it can go up to 20 volts So if you're using this to power your project, you need a regulator that can take up to 20 volts If you request it and bring it down to 3.3 or 5 volts Okay, and those new products A long description, but I think was Okay, don't forget the code is h usb We're gonna do a little bit of top secret Um, you can post up your questions in the chat and discord and make sure it's in discord and if uh There's questions that come in later after we're out. Don't worry put them there. We're around the community is around But do make sure that you're doing it on the discord h4.it slash discord. That's where we Collect all the questions. So let's do a little bit of secret While you do Your questions in the chat if there are I'm gonna do just a couple seconds of Some of the videos that we were playing um, and then I'll play the the full one for um The Star Trek admin series. So this is what we're doing during Star Trek day for these displays All right, lady. What is this? Okay? Well in honor of Star Trek day We are playing all sorts of different Star Trek intro videos on this 480 by 480 tft And uh, those are the specs for playing a 30 frame per second Cine pack, uh, which if people remember was um a file format that was used in games And I think dvd intro of screens, uh and a couple other use cases Yes, that's good. So it's Cine pack encoded into an avi with mp3 as the audio format And this is a way I don't see Maybe what is this? SPAC I'm playing video on an esp 32 s3. Uh, this is uh moon on our nation, which is uh matching username on github Made a way to play videos by having an Really do you know That's what people wanted This might be some sort of thinking computer So this is uh, the fourth video we're doing with Star Trek day and this is the animated series and the kazinti Which are evil and slightly goofy cappings Yep cool And that's top secret. That's what we were showing part of uh During star trek day and uh, we were off last week So I wanted to show some of those this week. Let's go to your questions Hit me Yeah, uh, we got a couple lined up Do this right away. Let me uh get us in the uh Here we go How do you decide if product is worth making how many units to make especially early on when it's potentially a bigger decision Do you just start hand assembling orders you receive now? No, I haven't had to assemble in a long time. I think the last time I had assembled stuff was um when we were doing the adxl 335 I did hand assemble the first smt boards that we sold Um, but I try to make about 250 pieces. I find this a really good Um spot where it's like, you know, it's enough people that if there's issues I'm going to find that about them really fast, but I'm also able to um You know, if it does work out, I think I have enough in stock to to get them to people I don't explain it, but like 250 pieces. Yeah, we also have prototypes that come in and our team tests and use often our team is working on guides or We're doing photography. Yeah, so we have a little bit of a cushion But usually that seems to be the number of like, let's get some out in the market if there's any revisions or iterations or anything that comes up We can make different decisions might be different for different folks out there. Um, you know, we sell We have thousands of orders a day. So um, sometimes they go very fast And the folks are like, but I want to buy more and we're like the next The next batch is coming in what that seems to be. Yeah the amount. Um, a little bit of a kudos three Pro three pros hundred 250 boards. Yeah kudos for you. Um and h usb live demo With your explanatory explanatory chops. Yes, people in spring. Yeah, this is a cool product It's a very cool chip. This is really neat And but I want to just I guys to explain it all and then warn people like you're gonna blow up your thing If you just like it's not it's not five volts anymore. It's not 20 volts Next up, what do you think the maximum number of matrix panels on the matrix portal s3? We'll drive them up to 12, which is uh, six more than I thought Um, you know, actually phil b did the math and then I totally I think we got super busy And I forgot to update the guides, but I think it is around 12 I think you might be you might be pushing up against it. It's not it's not the um It's not the memory Because you're using ps ram, but it is the um amount of Um dithering you can do before you like the screen circle can kind of crummy because you you can't dither fast enough Yeah Okay Think about the questions for Okay, all right. Um so I normally don't have um sad news, but once in a while we do um, this is about an Person that y'all are probably familiar with, uh, tony dakola worked with us at data fruit five six years ago um, you might remember The series watched tony d's desk. Uh, this is a series of videos and shows and live streams That um, we're preserving On youtube and also all of tony's guides tony died, um A few weeks ago, um, I'll post up the obituary in the discord chat We've reached out to the family and we got some information And we wanted to pay our respects and also dedicate this episode and also sure everyone we're going to be Keeping tony's guides around and tony's videos. I know that was important to tony every Memory I have of tony. This is one of the photos I got of lady aida and tony and maker fair um always sharing always Uh in the community always doing things And I just wanted to to share this news. We got this. We were devastated We tried to uh, find out this You know, obviously a private family matter, but there is more information now And it's now uh on a website that has the obituary. So I thought this would be the proper time and place to do this aida fruit donated to the um charities That the family said This is a washington alpine club tony was an avid mountain climber and the seattle international film festival and I just wanted to um Send my thoughts to the family and I know tony impacted a lot of folks He was uh, doing a lot of stuff in the very early stages of us doing python on hardware. Um, people still Review his videos and learn a lot. He started the newsletter started the newsletter with us and the first circuit Yeah, a python guide and you know the tony's legacy lives on here. Um, but uh Thank you To the team that got us this news and was able to to send over more information and I'll post that in the chat But uh, that's our show for tonight and I just wanted to uh, dedicate this to the memory of tony