 Live from New York, it's Ask an Engineer. Hey everybody and welcome to Ask an Engineer. It's me, Lady Aida, with me, Mr. Lady Aida. And we're broadcasting live from the Aidaford headquarters in downtown Manhattan. This is where we do all of our kitting and manufacturing and shipping. That's right, we are an advanced manufacturing facility. Some call it advanced manufacturing at least. That's what we were told to mention that we are because that's how New York City considers us. So we keep saying like, main New York City, but that's old speak. This is Newspeak, advanced manufacturing. But it's happening here in this factory, which is right behind us. It's quiet right now because everyone's at home, resting, getting ready for, I don't know, maybe they're going out tonight. But what we're going to do is we're going to have fun for the next hour. It's going to be us and you, the maker, hacker, engineering, community. And we're going to talk about what's going on, all the latest news, more and discount codes, speaking of which, Mr. Lady Aida, what's on tonight's show? On tonight's show, the code is QDPiPico, 10% off the Nages Fruit Store, all the way up to 1159. PM Eastern Time, or when I remember to turn off the code, just gets you 10% off anything in stock, plus you'll get free stuff and more. We'll talk about that later on as we start the show. We'll talk about our Aida for the Live series of shows, including Sean Tell, which we just wrapped up. Time travel, look around the world, makers, hackers, artists and engineers. Our new segment, it's already a hit. It is chip shortage. We'll talk about the chip shortage and what we can't get. And maybe we can work on fixing that. Some retro tech, we went to an event, it was super cool. From the mail bag, your letters, emails, tweets and more to us, help wanted from jobs.adafruit.com. You could post your skills up or if you're an employer, you can find cool people to work for your company, jobs.adafruit.com. We'll talk about some advanced manufacturing made right here in New York City. Couple projects from Noam Pedro with 3D printing. IMPI, new products, top secret, we'll answer your questions. We do that over on discord, adafruit.it slash discord, where you can join all 34,000 of us. All that and more on, you guessed it, ask an engineer. Bam. Okay, lady, so let's pay some bills so we can pay people with all the skills here. Can you buy Pico's to code? What do they get for free? Oh, we do have freebies if you order from adafruit.com, which helps support us and all the making and hacking and open sourcing that we do. We'll give you some freebies, $99 a more. You get a free perma-proto, half-sized breadboard. This PCB is great for taking your solderless breadboards and making them more permanent. That's the perma in the proto. $149 a more, you'll get a free STEM IQT board. We have a range of different boards available. If you make an account, we'll send you a different sensor or a breakout each time. Great for experimenting with new devices you've maybe not tried before. And then $199 a more, you get free UPS ground shipping in the Continental United States. That's fine. I got distracted. Yeah, but you had the one image that has everything. Yeah. Okay, don't forget to two-factor authenticate your account. Do it now. That way you can get a Raspberry Pi. Yes. We're releasing Raspberry Pis every single week and to do that you just need a verified account and a two-factor authenticated account that allows you to fairly get a Raspberry Pi so far it's worked out. People have been able to get Raspberry Pis who haven't been able to get them for months, if not a year. It's just one piece of the filtering and checking we do to make sure that makers and hackers and engineers and students are getting Raspberry Pis because we know, I don't know if you knew but there's a chip shortage. There is. Okay, we do a bunch of live shows every single week. Our live series of shows, today, we just wrapped up Show and Tell. Thank you Nuan Pedro for doing Show and Tell. And we were wrapping up the show here. So we're gonna watch it as soon as we get home on YouTube or wherever, if you watch it wherever, but usually on YouTube. And that's every single Wednesday at 7.30 p.m. Eastern time. Then on Sundays we do from the Desk of Lady Eda and this week we had kind of a few things going on. What was on Desk of Lady Eda this week? Well, we had a triple bang and show. First up, we did INFPI because last Wednesday was still jam-packed. We couldn't get to it during the show. So we instead covered INFPI on Sunday where we talked about InnoCenti UART radar, which is kind of neat, because it actually does all the radar sensing for you and pumps out UART signal. We included the photo of Mike Valentine, famous for his Valentine radar detectors. We also did a great search where I searched for 0402 RF capacitor kits and I found a really good one that I have ordered. It'll help me tune my antennas much better. A lot of 2.4 gigahertz antennas need a couple of passives just to get that tweaking right. And you want to have a nice range of capacitors available to try different values. Finally, we showed a whole bunch of photos from our trip to VCF East. We're gonna show that later on the show tonight. Well, we also had it on this. So we'll more of that, but if you want to see even more photos. Yeah. You had the great search. That's the Lady Eda. Yeah. Oh, I talked about the great search. It was the capacitor kit. Sorry. Yeah, we had a little bit of everything. I did have, I did get her so much. I was even I'm overwhelmed, but we did the capacitor search. Okay. JP's product pick of the week. We do this every single week on Tuesdays. Next week we're skipping. So you'll just see JP show on Thursday, but here is this week's highlight from product pick of the week. The DVI breakout. I've soldered on my Pico and my DVI breakout has that HDMI compatible connector right there. I've also added a little reset button and a little LED and a resistor there. And you can see all my wiring is underneath here. And that's just running all of these pins to their data pins as well as ground on the Pico. Go ahead and plug that in. And there you can see, we've got a delightful demo of a bunch of sprites. So here we have Phil Lamour Lars and I've also got a little Raspberry Pi, sort of a goth version of the Raspberry Pi logo going there. Perfect for doing experimentation. It's also obviously great for entertaining screen savers. There's a bunch of demos. It is the DVI breakout for the Pico RP2040 with HDMI connector. And JP's workshop is Thursday. And here's a little bit of a highlight from the show. This is the bouncing head thing. I wanted to do a little recap on that. Not creepy at all. And tune in for Circuit Python. Parts like every single week. I'm not going to play the highlight this week because we've got a bunch of stuff to get through on the show, but it is every single week. Speaking of every single week, we've got Deep Dive with Tim, Foamy Guy, every Friday at 2 p.m. Pacific. Watch it. Learn from it. Learn all the innards of Circuit Python. It's a great place to ask questions. Yeah. So if you can't go to an event like Python, which we'll be talking about, this is the next best thing. All right, time travel. Let's look around in the world of makers, hackers, artists, and engineers. Just a little bit of reminder. As you know, we're dealing with chip shortage. So our seasonal eight of box. We were trying to do like a winter one, and then it turned into winter spring and now spring. So we hopefully will be shipping pretty soon. We'll see how that goes. But thanks for hanging in there. We don't charge credit cards or charge you until it ships. So don't worry about that, but we're still hoping to get this out in springtime. We're very close, but you know, you need to get odds and ends to ship out thousands of eight of boxes because there's a chip shortage. And speaking of, chip shortage. All right, this week's chip shortage, the chips that we need are from Microchip Microchip. We need these chips. What chip specifically are we looking to get? Okay, so this week I'm looking for some at SamD51J19s in a QFN format. And we even ordered these. I was gonna say, did we plan ahead? We did plan ahead. How long good did we order these? We ordered these 7.721. That's the, if you look at the PO number at the top. So I think that's what July 7th, 2021. We ordered 8,000. Those have been bumped. We might get them in September, but we're running out now. So I looked on Microchip site and you can look at the part and I'm gonna zoom in. Let's say if you were to order it on Microchip site now. Yes. Out of stock. May 2023. So that's just a year from now. Did I mention this ship shore is gonna be another 18 months? It's gonna be another 18 months. Yeah, your estimate seems to be pretty spot on. So then I went to Digikey. I'm like, well, maybe Digikey has some insights when these ships will be in. You cannot even back order them. That's how bad it is. Okay, so what do we use these in? We use these in stuff like the pie badges. We actually have a lot of teachers and students who want to use these with make code and we can't get them pie badges. And so it's a little sad. We have a lot of people who want them, but we just don't have any chips. Can't get it. Also the edge badge. Yeah, and we have some of these feather M4s, but soon it'll be gone. Yeah, basically we had some leftover and we prioritized the feather M4 because that was, you know, what the most makers are using. We had to just make a decision on what to get made, but I would really love to get some pie badges in and we're gonna run out of the feathers pretty soon. If we don't get a refill on those. So this is when you look in the camera and you say to, I think it's a. Mr. Microchip. It's a Micro-D chip. Micro-D chip. It's the CEO. CEO Micro-D chip, please send us, please allocate us some SamD51J19s. We could really use them. Good for the children. We want to get these to students and kids. Believe me, I'm not, I'm not smoking them. I'm not like diving into a pool full of chips. I don't use them for skincare. I'm using them to make dev boards that students, makers and engineers are using to learn about at Mel slash Microchip parts. So please, please, please, please, please send us some chips. Even like a reel of 4,000 would really, it would get us until maybe September when we get that 8,000 coming in. All right, so that's our, that's our screaming into the void. We'll see how it goes. Not too proud to beg for chips, that's me. All right, and for those of you who have engineering jobs and you're in meetings and everything as I saw this in chat, we put this video just a standalone intro on YouTube. So you can just play this in your meetings when someone says, why isn't that thing done yet? And just say, it's chip short, it's chip short. We have had people, we have had customers say, well, can you get this to me in less than six months? And I'm like, I would love to. And they're like, isn't there, can you check in the back? Now there's no back. Yeah. Can you talk to a manager? Nope, that's not gonna help. All right, mailbag. A few things. What's new? Okay, a few things. Someone had asked, hey, like I want to use your songs. Can I download your songs? Can I find your song? Yep, Adafruit, sorry. Soundcloud.com slash Adafruit, we put these up. So you can download them, you can use them. We put a license on it so you can just credit us. That's all I could do. And then here's a nice email that we received. Thank you again for everything, specifically the contributions of Adafruit to the open source community and normalizing being a maker, it's refreshing to see someone being successful in making things in the US, let alone New York City. Aw. Okay, we got some retro stuff this week. This week's retro is gonna be a little bit different because we went to an event. We went to a whole retro. Yeah, we went to the Vintage Computer Festival East in Belmar, New Jersey. And I took 273 photos and I shot a little bit of video and I thought what I would do is just give you a taste. I linked to, and I'll put it in the chat I guess, where you can just check out all these photos on whatever platform you're on. I tried to put it in a few different formats in a few different ways, because there's no like best way to look at photos. Usually people have their own ways of looking at photos. So, here is just like one of the ways. And you could see from vacuum tubes to, this is kind of cool, this was a... There's a teletype. Teletype with Spock Univax. And collection of historic mice. It goes on and on and on and on and on and on. Yes, there's like five museums plus, there's even more. All at once there's a historical computer museum. There's a historical radio. Yeah, they have a cray. They have an Apple Lisa, which I actually never have seen before. I only saw photos. Apple Threes, they have an original palm machine. We need some survival crackers. We got survival crackers. Survival toilet. And then we also went to the radio broadcast museum, and that was a lot of fun. There was a jammer museum, and some of the cool things, never saw it come in, electronic warfare, jamming, our way. That's right, I'm a patriot, Phil. Yeah, and then there's things like, this is just from a old computer, back to the future stuff, and the list goes on and on and on and on. So I thought what I would do is play a little highlight video that we had. So I'm gonna play this right now. It's about three minutes. I'm not sure if you can read it, Darrell town. Very simple device. That's too old-time. Well you can't told me. Very simple device. You've been there right. I'm tired of telling you, I'm fresh, I need to make it. It's not working. I'm not done. Never seen the palette before. It's not working. Okay. Here we go. It looks like a jawl. It looks like a jawl. Looks like a jawl. I'm not sure it's gonna work. Well, that's awesome, Neil. I also own it, but that's one of the better ways to get more money. I will say, hoping that we'll be with this artist in the future as a way. I had to take all the finish off and re-finish. Do you want to call Nana from what? Dad, are you here? And that's this week retro. And if you're wondering why we do all this stuff is we know there's a lot of folks who can't make it because of geography or who knows, or they didn't know about them. And we get asked like, what inspires y'all? What type of things? And a lot of times when I look through the lens of a camera, I try to imagine the people that might enjoy it. And a lot of them are watching right now. So I hope you enjoy this. I'll continue to take photos and things as we share and explore all the cool things out there. And you can learn a lot from all of the achievements of the past. And we're here because of all the work that folks did for decades now. And it was really neat to see this collection in one spot. So hopefully we'll go back next year. And I think things will be a little bit easier to get around. So I hope to see some of you there as well. Okay, I'll put one in. All right, we have jobs.adafruit.com. And over there, you can post your skills if you're a maker looking for a gig or if you're a company, which a lot of folks are who posts there, you can publish your job, we review them. So it doesn't go up instantly. We make sure there's nothing sketchy or scammy or anything like that. So the New York Historical Society is looking for an AV content coordinator and the Carroll County Public Library is looking for an exploration comments manager. Both of these are pretty good gigs. These sound really fun. So check them out on jobs.adafruit.com. Python on hardware time. All right, there is a bunch going on. So for Python on hardware this week, I'm just gonna jump right in and talk about some of the things that's in the newsletter. Go to dataforddaily.com, sign up for the newsletter. There's a new microbit Python editor that's in beta. This is really good. And this is kind of where I thought a lot of educators would not only want to go but it seems like where things are going. So the Microbit Educational Foundation has their new Python editor. You can check it out. They're gonna release it to the community. You can give them feedback right now. And the idea is it'll make learning Python and or just computer science in general a bit easier. There's a lot of microbits out there. So check it out. And if you're a teacher and educator, now is your chance to put in some feedback. Tom's hardware has a review of the Pimeroni Servo 2040, the used circuit Python for that. You can check out the circuit Python online IDE for classes. This is one that you can use in a classroom setting online. You don't have to download anything. And there's new updates now where each student gets their own username. And then the instructor can check out what the students are doing while they're doing it. And you can review that on GitHub. And it was accepted to the American Society for Engineering Education 2020 conference. I'm gonna skip over to some of the very specific circuit Python news, because there is a bunch. But if you want all the micro Python news, all the circuit Python news, all the Python and hardware news, it goes on and on and on and on and on and on and on and on and on. So specifically to circuit Python this week, the team is there. You can say hi to Melissa, Catney and Jepler. They're running some sprints, some classes, bunch of stuff. And if you can't make it, you can probably poke around on our GitHub repo and check out what they're doing there. And then on Twitter, we have a circuit Python community. You can join. Just check out the Adafruit profile on Twitter. And we moderate the community. So that's one of the new tools that are inside Twitter, probably need it more soon. Upcoming changes of Twitter. But it's kind of a real time. Like here's some things, here's some questions, here's some stuff that people are working on. I'd say it's not as one-on-one as Discord, but if you're someone who's really in the Twitter or if you just want to share your projects, that's also a good way. And when you're in the circuit Python community on Twitter, those messages only go to the people that are in it. It doesn't go outside that, but then those could be shared. So we have a little code of conduct for it that you just have to hit OK. That allows us to make sure, like, hey, this is like a nice place for nice folks. Be excellent to one another. It's kind of the vibe there, too. So check it out. And if this is something you want to join, come on by. Be sneaky. And then we have a new release of Circuit Python. It's a beta. Yeah, it's... Beta 2. Yeah, so I guess the, I don't know, the big news that I think is the circuit Python merge That was done a while ago. The latest stuff is, Jepler worked on a lot of RP2040, because this is the beta 2, so there's a lot. This is like, you know, all these changes. But the latest thing that recently came in was Floppy IO, some tile grid work. Neopixel timing has been really improved. Dan Hava worked on that. And then Jepler worked on the RP2040 PIO. We can do a lot more with PIO now, including looping with DMA. So some neat things that people couldn't do before you can now do with our Circuit Python assembler. Okay, all these delivered to your mailbox every single week, eight for daily. And that is this week's Python on hardware. Yeah, I forgot, we added the microfiber changes. We do that all the time, but it's just like, we've been adding little fixes since. But it's also important that we are up to date. Test it out. You're not wrong. Well, yeah. Well, you know, the reason why is because I was corresponding with someone. And the cool thing is we're keeping the two cores, the one core, for the two guarantees. Yes, the language is now any like language improvements we're sharing and collaborating with, which is great. But we're doing more like, there's been a lot of little bug fixes. I mean, Scott's out, so we're not taking on any big projects, but we're doing a lot of like, stuff that's been bothering us for a while, you know, like this PIO thing. And I was like, I really, there's a couple of PIO projects that we couldn't do because we didn't support, like the assembly didn't support looping. But, you know, Jeff Lowe was showing, I think I'm showing Tal, that we can now do dynamic server programming by looping over data. We can also do like neopixel dithering. Other like some stuff that we can do before. So open source hardware, speaking of. Yes. Summit was last week, they're putting up the videos you can go to, you can just search for Oshawa YouTube and it'll take you there. Successful event. We sent some of our folks there. It was a virtual one and we were a sponsor. So check it out. If you couldn't make it, it's okay. The videos are up now. I just finished watching Alex Glow's talk and I have a few others to get through. Speaking of, we're an open source hardware company. We have 2,661 guys. Lady Ada, what's on the big board this week? Okay, we had a bunch of fun new guides this week from JP. We've got the ESP hole ad blocker. This is because we don't have the pie hole kit in stock and a lot of people have been asking us, when are you gonna get the pie hole kit in stock? And I'm like, I can't get Raspberry Pi Zero Ws. But I realized, if you don't need like the fanciest Linux computer based ad blocker, an ESP32 S2 will do the job quite nicely. I found a great project online called ESP hole and I just made a couple changes to it to use the ESP32 S2 which has native USB in a file system that we have access to in the TFT to display the very useful information which is the IP address of the, because you can't use MDNS, because you don't have DNS, you have to do your DNS, your DNS. So the display shows how many domains are being monitored and how many ads are being NAD. You say NAD to the ad and you can configure the host list and your Wi-Fi credentials and all that good stuff. So it's a really easy project. No soldering required with an ESP32 S2. I know Pedro also did a project. I wanted to do a demo showing the RP2040 with I2S audio and doing mixing and looping because I think folks didn't realize that we have this amazing capability of using high quality digital audio while looping audio, mixing in other audio. We have like a multi-track player in Circuit Python. So this sound board shows how you can play like an engine sound in the background and then you can press the buttons to play. Honks, we have a video. Yeah, we'll play the video soon. Liz, I saw a member of the Circuit Python community. I can't remember who it was. I think it wasn't Les Pounder or somebody else who did a fun MIDI to USB converter with Qtipi and we're like, oh yeah, that's right. That's a good project. And Liz has just did a big ass guide on MIDI. So I said, hey, why don't you show how to make a little MIDI adapter using a perf board for the Qtipi's and Liz did that and more MIDI to come. And then we had an update to our sharing a Circuit Python library. I think we fixed some typos and added some updates to the cookie cutter. Yeah, and I thought I'd play the video that Liz made. Okay, it's advanced manufacturing time. Were that, that's us. Yeah. We're the advanced manufacturers. Yeah, we're manufacturing advanced things. We'll still say Made in York City because this is across the street. This is the Disney headquarters. Lots of wind blowing in this time lapse. You could see the little, the humans for scale. That's what's going on. It's going to be the new Disney. Yeah, they're moving from Florida up here right here. The demilitarized zone, temporary autonomous zone. Yeah. All right, 3D printing. We have weekly videos show you how to design, how to print, projects you can do and more. We're going to play these back to back. This is the scooter video, the lady that I was talking about. It's a little scooter sound. And then we've been watching Moon Knight and this little speedup is from Moon Knight. Yes. You'll enjoy it. Hey, what's up, folks? In this project, we're building a portable sound effect speaker for our scooter. You can make this portable sound board that you can attach to any bike or scooter. This uses Circuit Python's audio mixing and looping features. So you can have an engine sound looping in the background and use the arcade buttons to mix in honking sound effects. Powered by the Feather RP2040, this uses an I2S amplifier for outputting high-quality audio with a mini speaker. You can get the parts to build this project, links are in the description. With Circuit Python, you can easily make audio projects using the built-in audio libraries. With Audio Mixer, you can play multiple audio files together and output high-quality audio over I2S. With native USB support, you can drag and drop Wave and MP3 audio files like a USB flash drive. The parts to build the enclosure can be 3D printed in PLA filament and the files are free to download. These quick connect cables make it easy to plug in your favorite arcade buttons. Be sure to check out the Learn Guide for full step-by-step tutorial on building this project. The microcontroller and amplifier are secured to a 3D printed plate that slides into rails built into the case. These panel-mounted arcade buttons press fit and are easy to swap out thanks to the quick connect cables. This rechargeable battery is fitted inside a custom holder that gets housed inside the enclosure. A latching button is mounted to the side cover and snap fits into the enclosure. The speaker is fitted into a cavity on the opposite end with the speaker grill fitting on top. A 3D printed clip is secured to the enclosure and can be attached to the frame of any bike or scooter. We hope this inspires you to check out CircuitPython for your next audio project. Thanks for watching and be sure to subscribe for more projects from Adafruit. And don't forget every single Wednesday at 11 a.m. 3D Hangouts with no Patreon. You can learn how to make all these things and more. Before we go off to IonMPI, don't forget the code. Keep by Pico, never send off an Adafruit store. Let's kick it with an IonMPI. This week's IonMPI brought to you by Adafruit is AM Osram. AMS Osram, AMS purchased Osram. So they're now a combo company. You get two for one, lots of optoelectronics. And this week, the IonMPI is optoelectronics based. It is the, hold on, let me get the exact part number. AS7038RB, which is an all-in-one PPG, which is like phylozomia graph. It's pulse oximetry and ECG and temperature, skin temperature and GSR sensors. It's kind of this all-in-one amazing combo sensor. It also looks so cool with this exposed sensing element. And it's designed for heart rate watches or workout bands. You know, the ones that like, usually they have accelerometer to, sorry, I can go back one. I didn't mean to tap you. You know, for sensors that use the accelerometer to do like how many steps you've taken, but they also usually can measure your heart rate. They can measure your pulse oximetry. They can measure your skin temperature. They can measure how much you're sweating by using GSR. So this is a vital sign sensor. So what's neat is that, you know, usually you have those four sensors be done differently, you know, separately. You know, usually especially ECG or EKG is done separately than pulse ox. But this actually combines the two. You still need to have the contacts for the ECG, but the computation and the data capture is done on the sensor, which then can filter everything and give you I2C data out. So the thing that it does that you're most familiar with probably is pulse oximetry. You know, by shining light through your skin, it can determine how much oxidation you're getting of your blood with a little bit of calibration. You can calculate your SPO2, which is really important. A lot of people have pulse oxes because if you have COPD, which is a very common disease in America, or if you are COVID-19 positive and you know, you have a bad reaction or you have some immune compromise. And so your cardiovascular system is affected. Your pulse ox is kind of the first thing that will tell you that you're in trouble. And this is what it looks like. The PPG is not quite the same as heart rate. I mean, you can kind of determine heart rate from it, but it's not quite ECG, ECG. Especially if you're using electrodes, you'll get like a really good electrical signal of the heart, which will show you all the different waves. What you'll get out of PPG is just, you know, how much oxygen is in your blood and are you getting a good pulse rate? So it's, you're definitely ECG and pulse ox, PPG are very similar, but they're used for different things. This is a gift that I saw from Wikipedia and it's just awesome because it actually shows the light. That light isn't flashing. That's just like your blood changing how much red light it lets through. And then, you know, it's very extreme in this photo. And then you can see how that is converted and red and then turned into heart rate and pulse oxymetry data. So this is the, there's a couple of models. This is the 7038 GB and you can see on the left, top left, there's the ECG amplifier. So you'll do need to have the in positive, in negative and in reference. There's, you know, some people can use their fingers or you can of course use electrodes. It'll get you the best signal. There's the LDO. There is the optical front end that's connected to four photodires in the center. There's green, clear and red, which, you know, you read that data and you can use that to do various calculations. There's also a generic ADC that can be used with an external NTC thermistor to do temperature sensing. And then the other analog front end can be used for GSR, which is used. You know, it's sort of like, it's galvanic scheme response sort of tells you like how excited or active the person is. It's like an arousal state, which sounds much more exciting than it is. It's kind of like how active and how aware you are of your surroundings. If you're surprised, it usually spikes up and if you're bored, it usually is quite low. So it can keep track of your, you know, attention span. So this, you know, all this comes into, you know, a filtering system and digital control sequencer that you can see connects over I squared C with an interrupt pin. So it's a very lightweight sensor. It does a lot of work for you and then just gives you the basics over I squared C, which is nice. There's also another, oh sorry, this is the hookup diagram. So you'll notice that you do need a couple of passives and this version of the chip is very small. It does not include the emitter LEDs, which do need to be, you know, a little bit far away from the sensor. So they're not in chip because you don't want to get inner reflection. So normally you'd have like a mechanical barrier between the LEDs. And if you look at your smart watch on the bottom, there's the sensor in the middle. And then the LEDs, there's some plastic or epoxy that keeps them from lighting, you know, the, from the light bouncing within the sensor element. You can also see the GSR electrodes on the right and the NTC using those extra ADC inputs. And then the ECG electrodes on the left. And then, you know, connect to a host processor, which then usually has accelerometer and, you know, charge stuff, but it pretty much is all you need. Other than the accelerometer, it's all you need to make like a smart watch health watch. The other model, which I kind of dug, it's not the INFPI, but it's like little sister is the AS7030B. And this one is physically larger. I think it has the same 7038GB inside of it, but it's like got this plastic case around it, which you can see is isolating that inner sensor. And then you see those three bumps, those are LEDs. So it's a little bit larger, but it's basically looks like it's got the same sensor in the middle. And then it's got the LED emitter. So this is more of like all in one. So I thought it was to be handy if you're interested in the sensor, you might be interested in this variant. That center is the like big ass photo diode. So there's a lot of green. There's a little bit of white and red. Green is the most common color that's detected because your blood's red. And so like, you know, green filters through quite well. This is the optical front end. So what I thought was kind of nice is, you know, I remember like making, you know, kind of pulse ox and ECG types of circuits in class. And because I was learning analog in class, it was like, you did this all in analog. And ironically, it's much easier to filter a lot of these signals in analog because they're analog signals. You can do a low pass, you can do a band pass, a high pass, whatever, offset reduction, but this, you know, what is nice is that, or rather what's frustrating is if you don't do the filtering in analog, it's or the amplification filtering analog, it's a real pain on the digital mic controller side because the signals are very small. They're quite noisy, you know, as people move and they're working out or they're walking or they're not, you know, they're holding their finger tightly or not, or they have a tan or they have darker skin. It can all be affected. But thankfully all of the switches and filters you might want are built in. And you can configure them to get the, you know, based on your design and the person that you're measuring their biosignals, you can get a really good signal out. And this is the signal path for this kind of, I kind of like this, they show like, here's the different filters you can do. So there's the offset reduction, there's the low pass and there's the amplification. So what's nice is that you can filter out the noise and then amplify the signal up. So you're not amplifying the noise and then having, you know, getting any LASing from that. And then this is the ECG circuit, which is a little bit simpler because it's like, everyone's heart is kind of the same rate. So it's like, the band pass is like, hey, your heart rate's probably gonna be around this. So, you know, if it's over, you know, if the signal's over a certain frequency, you know what you want and what you don't want. So this doesn't have as many switches with it. It looks like there's also an eval board for this entire family, the AS7030 family. You can see the sensor in the top right. The three golden pads are the ECG pads. And you can actually put your fingers on them and you can get a fairly good, not, you know, maybe medically accurate ECG signal. And then on the left, our favorite feather, it's a particle argon, which I really like that dev boards are starting to be feather compatible. So I might pick one up and try using it just with a, you know, Feather M4 or something or RP2040. But this is a nice IoT board, which has of course Wi-Fi and Bluetooth ready to go. And they have some handy software. I like that, you know, look, it's Windows only and you have to use the eval board, but it shows you the graphs, the signal. It's really good if you wanna tune like the hundreds of little tweaks that you can make to the design. You can get it to a really good state so you can launch with a good stable signal. What I thought was nice is they give you some values to start with and a lot of people remember we chatted about the paper that came out during COVID that was like, hey, a lot of Pell Sox's aren't tuned for dark scan. They'll actually give you incorrect readings. So what's nice is that they show you, hey, based on your finger wrist, what values you should start with and that'll help get more correct values. Available on Digi-Key and when we say available, we mean like you can get it. You can actually get it, it's in stock. So this sensor is available. The family is available. There's also eval boards. I thought it was kind of cool. I like these all-in-one sensors. Great if you're making, if you're making some like buyer reading project, the sensor will kind of do everything for you. Yeah, someone said you could make a alarm that posts on the Facebook to let everyone that their heart stopped, yeah? Yes, that's very morbid, but you absolutely could do that. Yeah, could have it do it. If then this, just turn off the page, you know. Yeah. Done. I'm now, I'm now. Are you dead? Log off of Twitter. You know, nothing really dies. It just, you know, it's not creator, just story. It just goes to another form. Yeah. Gotta look at that way. Okay, and do you want to show anything on the overhead or are we done with IonMPI? Well, I thought I could show the sensor real fast. Okay. It's quite small, but I could. That is small. I could show it. So that's the sensor. It's so tiny. Oh. Shoot. Yeah, so it's got the, you can see the green element. That's the sensor on the top. And then on the bottom, you've got all the pads for all the GPIO. So that's the, that's the sensor, the 7030 from AMS. All right, that's IonMPI. IonMPI. All right, we're going to do new products and then we'll do some top secret and some questions and more. Yes. Okay. I guess I have to remember to mention once more. You know, this is a live show. It's live. It's live. Sometimes folks are like, oh, maybe it's because it's a high production values and more, it's live. You can't do this on pre-recorded video. They would edit this out in post. Yeah. They say you can't poke. It's live video. They can't poke him. Yeah. I shall poke. Okay. Don't forget the code is kitypipico. We'll get to top secret questions after this. Let's do some new products. Ready? Yep. Let's go. All right. First up, we have a revision. So the ultimate GPS, the ultimate GPS was a wonderful GPS module breakout that we made and the company that originally made the GPS module stopped making it. So there's another company that started making it and they made two versions. One is the GPS version, which we still stock as PID 746. They also made an upgrade to the module which supports GLONASS, which is the Russian GPS system and Galileo, which is the European GPS system. GPS technically is the American system. The rest are called GNSS, which is like global navigation systems. There's also Beidou, which I think is the Chinese system. It's not quite up and running yet, but this can be updated to do so. Basically, the RF system can support other frequencies and readings of those other systems, which could be handy because if you are in a place where you might not, maybe by chance at that time, you don't have a lot of GPS satellites that are easy to read, you might be able to get Galileo signals or GLONASS signals and you can still calculate the location. They all kind of work on the same technique. So this ultimate GPS with the PA1616D, it's a little bit chunkier, but again, it supports those other networks and it uses a little bit more power, about 10 milliamps more, but it has many more channels, 99 instead of 66 and it can monitor many more satellites. So we have both versions. Next up. Okay, next up, we have more magnetic pin contacts. So these are super fun. You get two halves and there's pogo pins basically and then magnet and I'll show them over here. This version has straight pins and it's 0.1 inch spacing. So it's wonderful. You solder it into your perfboard or whatever. The pins aren't super long, but they do definitely go all the way through a standard FR4 116 thickness PCB. And then you've got this contact with five pins, which is I find a really good number because it can be USB or I squared C. And then if you try to plug it in backwards, it will repel. It is like the magnets and do not let me do it, but then if I flip it around, it will connect perfectly. And you'll get, you know, you can probably pass about an amp through each of these contacts. So good for power, good for signal magnetic. We also have the right angle version. Hold on, let me get this up because I was zoomed in. Okay, thank you for, whoa. Okay, we have the right angle version, but this is a straight version. So we have, you know, different configurations. Okay, next up. Okay, these look similar, but they're not. They're not magnetic, but they're Pogo pins that come on a grid. And this is handy because usually we sell Pogo pins individual. And these are kind of nice and long Pogo pins, but they're available in two by three and one by, oh, can you just show the other one? One by nine. And they're also a 0.1 inch spacing. And so if you're hooking up like some sort of Pogo pin test jig thing and you don't want to like arrange the pads, you just want them to kind of like magically be in the right setup. The plastic pieces hold them in place so that you get, you know, all the Pogo joy that you expect, Pogo, Pogo, Pogo. And then over here, Pogo, Pogo, Pogo. Perfect for test jigs or quick connects or what have you. But you don't have to do the alignment. It's all pre-aligned to 0.1 inch spacing. Next up. Okay, next we have two Pi zero spy cams. So these are for the Raspberry Pi zero. They have the smaller camera connector and we already carried one like 65 to 70 degree angle camera. And some people asked us, hey, can you carry some wide angle lenses? And we're like, oh yeah, that's right. So this is 120 and then this one is 160 degree range. So they plug into your Pi zero, use them just like any, you know, version one Pi camera. I would work right now at the time of this videoing, I would recommend the legacy camera support because the new camera support is a little bit iffy and all the tools that we use were legacy, but I can show, you know, I've got this hooked up to a Pi zero. Frank. It is, I don't know why it says Frank. It's my camera, Frank. Yeah. I think we should just name everyone. Everyone wants to hang it with Frank. Hold on. Here's my USB port, Steve. Okay, hold on. My camera, Frank. So maybe you can. Wait a minute, yeah. Okay, so this is the, hold on. This is backwards. No, this is front ways. So this is, okay, hold on, sorry. There's like five cameras and things going on here. I heard you like cameras. I got a camera so you can camera all your camera. Can you, can you need to be hold the screen in place? Cause it's, I can't configure both things. Oh, Frank. No, you're going to control Frank. I am going to control Frank. Okay. It's actually, it's Frank's monster, not Frank. Okay, so this is the, this is the camera. And so you can see it's very fish eye. And this is the 160 degrees. So this is really good. So you're seeing the camera through a TFT, through a camera, through a TFT, through another camera. So the quality is a little bit better than you can see. It works. But you can't see what it looks like. It's a very fish eye lens. So good for security system, or if you want to like do like nature monitoring, or you just want to see like basically half of a room. Yeah. At once. You can use Frank. So hi. So it looks like I have a teeny head and a gigantic body. But when you tilt to the. I actually finally look normal cause I have a gigantic head in real life. I do. It's a gigantic head. It falls, it makes me fall over. Yes. This is a little freakish, 160, but the 120 is a little bit less intense. And then the star of the show tonight, besides you Lady Eda, our team, our community, our customers, and all the folks who make. And Frank. And Frank, he is. Yes. This is the finally released cutie pie, Pico ESP 32. So this is a cutie pie board, which is our like teeny, you know, it's not quite a trinkets a little bit larger. It's the same pin out in shape as the seed show. But we've installed the ESP 32 Pico V2-03 onto the back along with a USB to serial converter, the CP 2102 or 04. And what's really cool about that chip, the ESP 32 Pico is it's basically an ESP 32, the dual core Tensilica chip you know and love. It's got wifi, it's got Bluetooth classic, it's got Bluetooth low energy. And it also shows like the crystal and a bunch of passives and all these other things that you need. So you see there's actually like not a lot of stuff on the back. There's a couple capacitors, there's the reset circuitry and there's the SyLabs CP 2102 chip. But really you don't need a lot of stuff because it's kind of like all packed into that one chip, including eight megabytes of flash and two megabytes of PSRAM, which is great. You means you can do a lot of very advanced IoT projects because you've got a lot of flash and memory. Not only do you have that 512, I think K of SRAM, we've got two megabytes of PSRAM as well. And then on the top, we've got the USB-C for uploading and data. The boot button and the reset button, if you ever need to, the boot button can be used as a user button. It's connected to GPIO zero, which after the program's booted, you can use that as an input button. It's got the 3.3 volt regulator. It's got a little NeoPixel with power control and the antenna. And we made sure that this can be used in low power mode so you can turn off the NeoPixel and go into deep sleep and use about 70 microamps. And we verified that with our power monitor PPK2, which we really love. And then one of the demos that we wanted to show was just because it's fun to show it off is, it's a pretty powerful chip and there's a lot of memory. So we built this demo, hold on. It doesn't like the screen, where you can play, here, maybe you can hold this for me. You can play Nintendo games and emulate Doom or if it's actually really hard to play through the screen, hold on. I gotta restart, yeah. I really like Arkanoid. I hate it when I get to the arcade and I'd have to like pay 25 cents to play Arkanoid. Not anymore. Not anymore. Now I can play anytime. Okay, hold on. Oh no. Sorry. Okay, so. But on the back, oh wait. Let me go to the back and then I'll focus lock this thing. Okay, so on the back, you've got the QT Pi, so you can just plug it into a breadboard or header. And anything that's, the reason I was like showing the emulator demo is basically anything that is designed for the ESP32, which is like thousands of billions of projects will run. It's got the ADC outputs, the DAC outputs. You can run I2S on it. It's got the high speed SPI pins. So kind of everything, just a little bit of everything you need to do IoT projects. And of course, the STEMI QT port on the front, you can plug I squared C sensors onto it to make it more advanced. You can add GPI expanders if you want more GPIO or you can add sensors that you can then send to your IoT service. And that's new products this week. Okay, y'all. If we still have some stock, GPI Pico is the code. So I'm pointing out, it looks like we still have some Nordic NRF PPK to Power Profile kits. So you might be able to pick one of those and get a discount. We do. We worked very hard to get them. Yeah, so post up your questions over in discordatorford.it slash discord. I got a couple lined up and now we're going to do some top secret. And first up, I'm going to play a little video that we just shot of the Sam D 51 pretty pins. Early in it. And what is this? Hey, I wanted to work on some pretty pin stuff while the picking places are running. This is a Sam D 51. So what I've been doing is going through the massive data sheet and turning this table massive table with all the different things you can do with every pin into a spreadsheet. So you can see every type of pin usage and all the pin names are now in a pretty spreadsheet. And then I got it working with pretty pins. So you can see every pin here has all of the counters and the PCC lines and the I2S and if it has Canvas and special capabilities and analog pins all labeled out so it can make these really beautiful fritzing generated pretty pins diagrams for the Sam D 51 family. Okay. And then I thought, so we posted this, here's a board that we're working on. And then I put the text in TikTok. So I'm just gonna let TikTok say it. QTPY with CH-552 Ultra Low Cost Microcontroller. Any CH-55X experts out there who want to take a look and see if we got it all wired right? Anything we missed? So what is this, Lady Aida? So this is a QDPI and I thought it would be interesting to make one with this CH-552 which is this 8051 like Ultra Low Cost like 30 set microcontroller and I thought it would be kind of funny. This is a single-sided QDPI that uses this chip. I've never used it, but I was like, well, what's the cheapest QDPI you could make and it would be like using this component. So I just whipped it up on Tuesday and I thought I'd post up and see what people all thought of it. Okay. Yeah, we have this schematic and I've did a blog post and you can check out if you're an expert and you have lots of thoughts about this and now it's your chance. And then we're working on the CUBE project. So here's another preview of the latest and greatest. You can see very QB. QB things. Yeah. Just Cuban. Doing stuff and things and that is this week's top secret. Okay. Let's go over to the questions. Chris said we do those over on Discord and I have a couple lined up. Where did it go? Lady Aida, first up. Okay. Okay. Some time ago I thought I heard you saying there was a project to have some Arduino sketches behave similarly like circuit Python to where you could drag not only code but extras like MP3 files over to a board such as an ESP32XX. Is this something selling the future of workarounds for SD cards? The way to go. Well, with teeny USB, you can do that. We have anything that supports teeny USB. You can use a teeny USB Arduino library and you can have mass storage with flash or with SD or with QSPY. So we have used it a couple of times. Like in fact the ESP whole project that JP did. You create the file system with circuit Python but then in Arduino it shows up as a disk drive and you can drag the host file on and off. Okay. There was a previous question of this show live. Yes. Next up. I worked with the HX711 load cell amp ADC before. I've been working with the project. The pile of 25 cents I like to press HX711 boards made a circuit Python driver for it coming to the community bundle soon. Yay. And it's pretty dang useful for how inexpensive it is. I have not used them. Okay. Well, thank you 560. But thank you for writing a driver. Yeah. I just haven't used it before. Yeah. There's thousands of chips. When you get this going, pop on to the show and tell and show us what you did. That'd be kind of cool. Question. The PN532 shield doesn't read with Adafruit Metro ESP32 S2 any plans for integration? I'm trying to make a Wi-Fi connected RFID reader. It probably doesn't work because the ESP32 S2 has really messed up I squared C right now. So you could try putting it into SPI mode or just try a different reader or a different chip. Just ESP32 S2 is still going through revisions for I squared C support. Okay. This is a question for you, lady. Did the education and MIT help on the manufacturing business and logistic aspects of Adafruit or was it through the School of Hard Knocks? Impressive work by you and your team. MIT does not really teach you how to run a business. It's a completely separate skill than engineering but they're very good at teaching you about engineering. We just have, which is still useful and it's good to know, that the actual managing of a company is a different skill set. Okay. Next up. Oh, the cube that we showed are they held together with magnetics? Yeah. Yes, there are some magnets and some more magnets. Even though this is top secret, I don't mind showing that because it wouldn't be that fun if this was like, okay, you can't open it up. We wanted to make it easy. So that's that. Question, Adafruit. I've got a PM 2.5 STEM Air Quality Sensor working with Raspberry Pi but when I tried to connect it to an ASP32 S2 QT Pi, I get an error. What's the best way to open a bug? I put it on the help of CircuitPython Discord Channel so far. You can open up an issue on GitHub but again, the ASP32 S2 is having a lot of iSquared C issues right now and so it may just be that chip is buggy with iSquared C and you could try a different chip for now. Okay. I think, let me just make sure I'll get some other chats. Magnets, how do those work? You want to just do a general how a magnet works? I don't know how they work. Really? No, they're quite weird. I mean, like. I'll leave it to the chat. Do you understand magnetic forces? I understand our description of it. There's poles, there's alignment on how things. Yeah, but like why? Doesn't make any sense. Yeah, I mean, we're part of this universe. It can only be this at this point. But if anyone has a really good overview or description, you know, one thing, I know it's easy to dunk on YouTube but they have a lot of good explainer videos. Like once in a while, like I'm just like, oh, how do I explain this concept and usually over the course of the last decade, what's those cartoony ones? Curds wheel or what's the, it's the one's, it's the person who did the cartoon in front of the Hitchhiker's Guide to the Galaxy. It's like a really neat cartoon series. Anyway, someone in the channel now. I do not know. Okay. All right, so we got to that question that folks asked. Someone said post up in the forums for that other one if you can't get any assistance, real time and Discord and open up an issue on GitHub for that particular one. So I think that is all the questions. That's it. All right. Those are our questions for tonight. Thanks everybody. Don't forget the code is QTpie, Pico, 10% off the native fruit store. Special thanks to Justin May who's running the chat and more behind the scenes. Special thanks to our team, our community, our customers, big hug report to the team that got a, I think we got 300 plus, like Raspberry Pi's out today. Yes. So don't forget to verify your account and do two factor authentication and you can get a Raspberry Pi. We're doing something to make it fair and easy for anyone to get a Raspberry Pi because we know there's a shortage. So this is what we've been doing. It's been working out. This has been an eight of fruit production. We'll see everybody next week. Here is your moment of Xenor. Thanks everybody.