 Live from New York, it's Asus Engineer. Hey everybody and welcome to Ask Engineer. It's me Lady Aida, the engineer with me, Mr. Lady Aida on camera control and controlling the known universe. We have an exciting show. A lot of pressure. It's a lot of work. We got a lot of stuff on the show tonight. Lots of email. Yeah, all the email actually. So why don't we just get right into what's on tonight's show, Mr. Lady Aida. On tonight's show, the code is Lin Pot, 10% off the native restore all the way up to 1159 PM Eastern time tonight, 10% off of things that we have in stock. You also get the freebies along with that. We'll talk about that in a bit. We will also talk about our Aida Fruit Live Series shows including show and tell. We're going to do some time travel, look around the world to makers, hackers, artists, engineers, events that are going on and more help wanted jobs.adafruit.com. You got skills. Put them up there. You're a cool company. You want makers and programmers and designers and engineers to work with you, post up the jobs there as well. New York City factory footage. Look around here at Aida Fruit and outer window. 3D printing, some videos from now on Patreon and more. We got INMPI brought to you by Digikey and Aida Fruit where Lady Aida looks at the newest, latest things and more in the world of electronics. We got some new products. We got some top secret, an amazing top secret tune in for that at the end for sure. And then we answer your questions. Put those in Discord, AidaFruit.it slash Discord where you can join all 32,000 of us every single hour of the day. We do your questions at the end. All that and more on you guys to ask an engineer. Okay, Lady Aida, let's kick it off so the code is in pots and you get free stuff. What do you get? So $99 or more, you get a free promo-proto hash size breadboard, $149 or more, you get a STEMI QT board, about one of many possibilities, $199 or more, you get free UPS ground shipping and actually believe that we don't have any other freebies. That's it right now. We're going to add circuit playground expresses in the next few weeks. Yep, and you can combine it with the 10% off. Okay. All right, so we do a bunch of live shows every single week. We just finish show and tell. The show and tell is great. Do you have a particular highlight? Oh, well Jay showed the most adorable robot. Yeah. Jebela showed off how to rip and run copy-protected Commodore 64 games, including this game from his childhood. That was pretty cool. We had a person who met you 10, 15 years ago and made a Macro Pad. JP had a Wordle keyboard and Scott... No, Pedro had their L-Cars interface thing. Yeah, that was really nice. The relation to the code, L-Pods. No, L-Cars is different. And then Scott did some S3 hacking, so it was a big party. Check it out. It's on all of our social media properties and more, but a lot of people watch on YouTube and it's there right now. On Sundays, we do Disc of Lady Eta. This week, part one of Disc of Lady Eta was... It's okay, so I was showing off the QT pie that I got working with Retro Go over the weekend. I got to show that off. It was a pretty easy port. Retro Go does a lot for the ESP32, so all I had to do was add support for the iSquad C Expander and the TFT display, and then all the emulators pretty much worked on the two megabytes of PS RAM, so that was great to see. Then we do the Great Search, and this is where Lady Eta uses her powers of engineering to help you find stuff on digikey.com. What did you look for this week? For the design, I had a very nice, slim headphone jack, and I wanted to show people how to spec a headphone jack. Things to look for, different models, and we found one that is basically the one that I used in the design. If you'd like to look at that headphone jack, it's one that I've used and I've had a lot of success with. We also did a special edition INMPI, as you see here, where we talk about VHB tape from 3M, which will totally stick anything to anything. This week, I'm going to zoom through different parts of our show, because we've got a lot ahead. JP's Product Pick is every Tuesday. You can watch the full thing or the highlight on our YouTube channel. Then tomorrow is JP's Workshop, and JP will be showing off this really cool synth. I showed some of it in the beginning of the show, but I wanted to show this little clip right now. And part of JP's Workshop is Circuit Python Parsec, and again, you can watch the clip or you can watch the latest one that will be coming up tomorrow. And Friday, speaking of live shows, we do a deep dive with Scott, and tomorrow, JP show, Friday, Scott's deep dive, and Scott will be talking about all the stuff he showed on the show and tell, and it's last week to get all of your Circuit Python 2022 requests, things you want to see, things you want us to do, things you want to do, and you can email us, you can tag us, you can do everything. Scott's going to do a summary pretty soon, so get on that. Time travel. Let's look around in the world of makers, hackers, artists, engineers, and stuff that we need to get the word out on. So the big one is always, we only have a couple slots open for Eight-A-Box. We'll be shipping these in March. This is the additions that we're doing because between COVID and the supply chain stuff, there's no way to give a specific date, so we're like seasons. Do the best you can. Yeah, but we shipped every Eight-A-Box through the last two years. It was playing the video game on hard mode, but we will also be shipping this one. So it's winter edition. It's going to be really good. Please sign up while we're going to run out of slots. And then once you see what's in this Eight-A-Box, you're going to say, I really wish I had that. And we don't do back orders, and so this is the way to get a Eight-A-Fruit product kind of in advance. Yeah. Yeah. If you're in New York City on the cable program, they're rerunning a show they did called Her Big Idea. It was season two, episode one, where they interviewed you. They had folks here in the factory. This was right before COVID, so you'll notice people don't have masks on, so that's the difference. It's weird to see footage of ourselves in the before time, because I'm like, hey, why aren't we wearing masks? Oh yeah, that's the before time, but it'll be over soon. We're not wearing masks right now because we're the only two people here on site, and for the most part, things are going in a good direction, so I think this will probably be it, maybe fingers crossed, no weirdo variance again. We posted this up on the blog, and one thing that Eight-A-Fruit does is we do a paid day off for voting. Some countries do that, the US doesn't yet. But Tuesday was help get people to be poll workers. So we put up all the information, and a lot of our team does this, and then people that are in our community do this. And we're just trying to encourage this, so no matter where you're at on the political spectrum, I think we all agree having people around at the polls to help around it is good, and Eight-A-Fruit has paid time off for that for folks. So anyways, all the information is on our blog, or you can of course go and check out. It's on every Gov site now, and you can also just Google Poll Worker Day. We've been showing some retro-y stuff. This is from, I think like, eight years ago. This is 2007. Yeah, okay, even longer. A little longer. So this is some PCBs that we showed, and then, I guess the big, the big thing with this is it has wave bubble on it, and it also has minty boost. This was back when I was at iBeam, so they could see this is iBeam work I was doing at the time. I was designing some boards. We did the minty boost while I was at iBeam, so it was this one magical year where I got a lot of stuff done, met you, really kicked off, Eight-A-Fruit really just started. I mean, the company had been running for two years, but this is when they really started to become a bunch faster. And then in July of 2013, these are, this is time travel, looking back in time. You designed this board, and this was... This never got released, well, it's like, so I was digging, I was actually digging for some 402 capacitors. Weird creature that's never seen the light of day. Yeah, I was looking for the components that are on this board, I was gonna recycle them, and so I sometimes go through the proto-bends, and I was like, oh, wow, you know, this design was a 32U4 8-bit micro with a CC3000. It was kind of designed to be like a Wi-Fi feather type thing before, you know, micro USB didn't even exist yet, it was really still mini USB, and their antenna's way too small, but you know, at the time it seemed like the right idea. This never actually worked, but it kind of sort of partially sort of kind of worked, but then, you know, the Wink 1500 came out and we ended up using that, but for a while we were using the CC3000 quite a bit, and it was the best at the time. No. Now we've got better. And we resumed our publishing of a bunch of photos that we took. We had to, we had a bunch of projects that we were doing a couple years ago and we're just like, we can't get to them because dealing with everything, but this is the Logitech Photoman Plus from like 1993. It's like one of the first digital cameras. And then we also posted up the Apple Quicktake. Now what's funny is there's so much like Apple Photoshop-y stuff out there. People assume this isn't even real, but it is, this is a real camera. It's got a rendering look to it. Yeah, it's the Apple Quicktake 150. It's the second digital camera. We've posted up the original one and the 100 and then we're gonna use 200 and then this one. This is from our Adafruit Apple Museum that we have. Speaking of retro, on Wednesday of next week, Hackaday, my old job, not connected with it anymore, but we're doing a hack chat and on the hack chat we're gonna be talking about floppies. So it'll be Jeff, you and myself and go to hackaday.io, check out the events and this'll be about a half an hour hour or so in the hack chat broadcasting and all of our social media properties as well. And you'll be talking about all the floppy work you've been doing. We're gonna be playing a lot of these videos tonight here, but people who have a lot of questions like, oh, can I do eight inch floppies? What about Commodore? What about double density? What about that? Where about all those questions will be answered. Yes. And more. So that's the hack chat. I also have questions. If you have answers, come by. You can answer my questions. Yeah. And the other thing is there's a lot of folks only because this is what they told me. And I felt this way too. Kind of intimidated by like the retro archivist community. It's a little gate keeping. And so what we're trying to do is bring in more beginners and more people that they're like, oh, like this is the first time I've interacted with floppies. I know that you can get like a USB drive but I know that doesn't work. So how do I like, I have all this stuff in the attic. How do I get it to work and all that? So we hopefully can answer all those questions like what's a grease weasel? There is, there is such a thing. I know all about grease weasels. And float engines. We're hoping to expand the retro computing fandom and participation. So this is just one of the ways. So we'll see you next week. It'll be 3 p.m. Eastern time, Wednesday of next week. Hackaday. Okay, help wanted. You can go to jobs.adaford.com and check out the job listings there. And you can also check out, people are posting up skills this week on the jobs board. Two of them got posted. Creative engineer, fabricator for mechatronics. It's a contract job. Check it out. It is with, let me get the name of the company, right? It's with Shopcat. And then CircuitPython, programming two buttons to control nine servos with pi zero and 16 channel bonnet. This is from Ken and this is also a contract job. I'm seeing a lot of folks who want something done and they know about Adafruit because they're using our hardware and they're using something like CircuitPython but they want to hire someone to assist them with it. So check it out. If you've got the skills, this will help you pay the bills. Python on hardware. All right, lady it up. We have a newsletter. We think we're gonna get maybe 10,000 readers by the end of the year. That's what I'm saying. Yeah, that's what I'm saying. But it doesn't matter. You can read it on the web. We don't spam. It's a whole separate site, Adafruit Daily. This week, a couple of highlights before I go into what I think is an interesting story. The Raspberry Pi Pico, our P2040 turns one. I remember a year ago. Happy one year old. Feels a lot longer, but yes. I remember we were reporting CircuitPython in secret. I designed some hardware with the chip. We got the feather design very early. Got that release very quickly. And now it's one of our top chips. I love designing with the RP2040. And it's available. I'll talk about the CircuitPython get every bow in a minute. You're gonna be on a podcast. It is a celebration of 10 years of Raspberry Pi. So this will be on February 15th on Tom's hardware. So you'll be there with Pimeroni and also Tom's hardware. And I think they have a whole series of guests and specials and all that. So check that out. As I mentioned before, we have the CircuitPython 2022 call for requests, participation. What are the things that you wanna see? Scott did a roundup. We put it in the newsletter and we also have Scott's deep dive this week. We'll, you'll probably be summarizing quite a bit of this. So all of the projects are there. CircuitPython show, we're not doing this. Someone else's, which is good. Not me. I'm busy. Yeah, I've got enough shows to work on. But they're doing interviews. There's guests. So whatever pod catcher you used, I don't even know if people call them that anymore. Sign up, subscribe. And you'll, you'll see in here Paul interview a bunch of folks. There's a bunch of CircuitPython stuff in Hack Space Magazine. You can check that out. And then just projects, guh, lore, never ending projects. I thought this blood glucose meter was kind of cool with the mag tag. That's nice. So do check that out. So the story, the one I wanted to focus on this week is, so something happened in the world of CircuitPython, Lady Aida, that made the stars on GitHub, which is a measure of our people using this, our people doing stuff with it. It's a rough measure. It's not how many users. It is a measure. But it's how many people are interested in the development of it. So what happened for these little areas that it spiked up? Yeah. So you see like normally, it's quite linear for the most part. You know, it kind of, it just kind of goes with time. Although it's accelerating, right? It does kind of curve up. But there's two big bumps. One bump is when we did the pie portal, because, you know, basically we had a project which would ding every time people starred. They get a repo until a lot of people were, you know, we kind of said, hey folks, like check out this project and star the repo. And a lot of people got a pie portals in the Aida box, I think added stars as part of the project. So we saw a bump there. And then another bump, you know, came basically a year ago right around MicroPython, I'm guessing that's exact, you know, I don't know the exact date, but it looks like it's just at the new year of 2021, which is, I think a lot of people got Raspberry Pi Picas and they're like, I want to run software on it and CircuitPython ran out of the box and could do keyboards and MIDI and USB. And we had a lot of libraries and drivers. So I think that was a big bump in these, you know, user base. And so we got a lot of stars then. Yeah. I think when you introduce new hardware, that's when a lot of it, a lot of it- Well, it's a whole new family of hardware, right? Raspberry Pi even said, you know, one they sold about a million Picas. So, you know, like 10% of those people probably, you know, or 1% even checked out CircuitPython, you know, that's 100,000 more users. All right, so you can get this newsletter with all this and more at aidaforddaily.com. Once again, we don't spam. So completely separate site has nothing to do with your Aida Fruit account at all whatsoever. And it gets delivered to you every single week by a cool purple snake that we like to call, like a. And that's Python on hardware this week. Okay, Lady Aida, we're an open source hardware company. To prove it, because you have to prove it all the time. We have 2,613 guides, there's code. There's all sorts of things. So people can share and learn from, what's on the big board this week? Well, we got two new guides. Well, Catney's working on the QDPy ESP32 S2 guide. It's not a new guide, but she's adding Arduino pages. The Arduino support for the, sorry, this is actually a new guide. We added the UFL version details. And we added a couple more template pages. This guide got a little bit of work. This Feather TFT Stemacase is a new guide from NONE Pedro, and we'll show the video that goes with it in the 3D Hangout section. And then for this, I'm gonna play a little video. Yeah, so we've also got, sorry, the RP2040 guides got Arduino pages added because the Arduino support for the RP2040 has gotten to the point where we feel really comfortable telling people to go use it. It's, you know, I use it all the time and the hardware and software is nice and stable. So the KB2040, it's eBitzy RP2040. They're all getting those pages so that people can start using Arduino. And then we've got two new guides, one from Isaac, which is a pendant that pulses with heart rate that uses a Bluetooth heart rate monitor to monitor the heart rate. And this is kind of building off of, we had an old project that Becky did before Bluetooth when you would use a polar heart monitor. Nowadays, you can just use a Bluetooth one and it works like really, really well. And it's much lower power and you don't need this specialized hardware. You can use any generic heart rate monitor. And then JP did this awesome arpeggiating arcade synth controller using the STEMIQT arcade breakouts. Yeah, that's the little clip and I also showed in the beginning. Yeah, that's the thing we showed. And then JP will be showing that tomorrow. And then we have this little kind of like trailer for a guide, so I want to, this is the heart. Coming soon. Yeah, this is the heart rate pendant. All right, let's do some factory footage. Okay. And it wouldn't be factory footage without, you know, the Disney building, this is a view outside our window now. It's like breathing. Yeah. All right, well it's gonna get skinned soon. Yeah, from lovable characters. Okay, 3D printing. First up, I had a little thing that I wanted to show. So this is a cool site that you can upload STL files and it'll turn 3D models into ASCII techs. So I had designed the Hackaday logo like 100 years ago. I did the Adafür logo and I did a bunch of logos but this was a 2D model that was extruded out a little bit. So I thought this was neat and you can make it either black and white, you can rotate it, you can do all sorts of different things and the text itself that if you zoom into it, it says Hackaday. So I thought that was kind of cool because you can do all sorts of things with 3D models and you can also, there's another site that this person made that you can do like low res poly stuff. So I took like this Buddha sculpture that looked really neat and then I made it low res, it was kind of cool. So anyways, you can check that out on Patreon, I think I posted up a link to that as well on our blog. Let's play the two videos back to back. We got the TFT Feather and then we got a speed up. Hey, what's up folks? In this video, we're taking a look at the Adafruit TFT Feather with the ESP32 S2. This dev board features a 1.14 inch display with a lipo charging circuit and battery monitor. It's got the ESP32 S2 mini module that works with both Arduino or circuit Python. We designed and 3D printed a snap fit case to make a little compact IoT project. We can easily add STEMAQT breakouts like these temperature and humidity sensors. The two buttons on the front are accessible so you can quickly reboot or get into the boot loader. You can get the parts to build this project, links are in the description. You can 3D print the parts without any support material using your favorite filament. The bottom features slots so you can use M25 hardware to secure the STEMAQT sensors. You can fit up to two boards and secure them using hex nuts. A small lipo battery is able to fit in between the standoffs with the cable routed through the side. The feather press fits into the case and these two covers just snap fit over the top. The STEMAQT connector is accessible so you can daisy change your sensors and make a portable IoT project. We hope this inspires you to check out the new TFT Feather with the ESP32 S2. Thanks for watching and be sure to subscribe for more project videos from Adafruit. How to make all this stuff and more with Nome and Pedro, the longest running live 3D printing show in the known universe. Lady Aida, are you ready to do INMPI? I am. INMPI brought to you by Digikey and Adafruit this week. It is from TE Connectivity. Lady Aida, what is this week's INMPI? Okay, yeah, TE comes around. Again, it's time for them. They do make a lot of connectors. This came up on digikey.com slash new which is what I like to check every day to see the latest sensors, devices, chips, and more. Do check it out because you'll get a heads up on the latest NPIs. This week we're going to be looking at SMT terminal blocks which I didn't know existed. So I learned a thing and I found a thing. I'll probably use the thing on an upcoming design. So this is what they look like and I'll also show it on the overhead. Maybe actually I'll do that now. So I'll show it to you actually because it's usually want to see it in 3D. So this is a normal terminal block and I'll talk about those in a moment. And this is an SMT terminal block. So you see it's designed to fit flat on a PCB whereas these go through the PCB. Okay, great. Now that I've shown what this looks like, let's go to the next slide. Okay, so TE makes a lot of terminal blocks. They pick 169 different kinds of terminal blocks and terminal block accessories. The ones that you're most used to or at least I'm most used to are these. They're called termy blocks and they're called captive cage where you turn the screw at the top and this little mouth opens and closes. I'll show that also on the overhead later. You sort of them through the PCB and they come in various pitches from 2.54 millimeter, about 0.1 inch. So 3.5 millimeter is popular. I tend to use those 3.81 millimeter and 5.08 millimeter, which is 0.2 inches. There's also I think even bigger ones but those are the kind of the most common sizes. And terminal blocks are super useful when you have a board and you want to connect wires to them and the wires don't come with like a pre-made connector. So to be honest, often it's motors for us because motors tend to come with bare wires. They don't come with connectors. You have standard size connectors, solenoids, some sensors and you want to connect them to your board. Terminal blocks are very easy to use, right? You don't need special tools, you just need a screwdriver. You know, they're easy to swap around, they're easy to customize. You can also put multiple wires into one terminal block. So we've used them so like in the Cricut board it's one of the first boards that really used a lot of terminal blocks. We also have terminal block feather wing. You can see here it's got like a long line of terminals. One for each pin on the feather. You know, again, makes it easy to take something that is breadboard friendly and make it wire friendly, especially like for thicker wires that don't plug into a solderless breadboard. The good news is these are easy to use, they're very common. They're jelly bean parts. The problem is is you need a selective solder machine to really solder these in or wave soldering or do it manually because it's not an SMT process. We've even had a series of posts about what you have to do. Like they don't go through a surface mount machine like a pick in place. You have your board surface mounted and then you take it out and you have to manually place by hand all the connectors and then use this other machine as you saw me modeling it. We've had Kiss 102, but there's lots of different selective solder or wave soldering machines. And then it puts down the thick amounts of solder needed to make the McCamp connection. And then you can see on this board, the bottom of the Cricut, you can see what it looks like. You've got these little Hershey's Kisses of solder and each terminal block is pretty big. It needs a lot of solder. So, you know, the good news is that these are nice strong common connectors. The problem is that you need this secondary process to use them, which is kind of a pain, especially if you only need like one or two terminal blocks. Like if you have a lot of them, you know, the cost and it's not a big deal. Like you might, if you're going to do a couple, you put all of them down and you have the selective or the wave, do all of them at once. But if you only have like one or two terminal blocks, like on our, you know, Buckaroo Banzai, which is a very simple little motor controller. We actually, you know, we wanted a surface mount terminal block because we really don't want to put a board this small and this inexpensive through a second selective solder process just for one terminal block. It just wasn't worth it. But all the motors that we were using for pumping water, they always come with bare wires on them. And so this is a terminal block that you can kind of see inside. There's like a little, like a wedge and you stick the wire in and you can loosen it by pressing down. But these are not as elegant, I think, as the screw type terminal blocks, they were more likely to get damaged. People would press down too hard. They wouldn't press down hard enough or like they got jamming. So you can't really see what's going on inside. Like you have to really push. It was not, the user interface was not as elegant in my opinion as the captive cage blocks. And so it was really neat to see these T terminal blocks pop up that have SMT tabs and they come in a variety of sizes. All of them do about 16, 18 to about 28 to 30 gauge. So you cover your most popular 20 gauge segments. You can use stranded or solid core. That's another thing. You can't use stranded core with those push type or a stranded core. I mean, you can use it just fine with the captive cage type blocks. They come in various sizes up to seven pin, 3.81, 3.5 and five millimeter blocks are all available, so they're kind of standard sizes. And, you know, amperes of current. And they're, you know, pretty easy to use. They, you know, as expected instead of a through hole pad, use a big surface mount pad. And you want to get those pads to be really chunky. You want a lot of mechanical strength because there's going to be torque on the connector. There's also, if you can see some in the bottom left hand section, there's two positioning holes. And the positioning holes help with the torque because as you're opening and closing these terminal blocks, you know, you're twisting the top and it's really easy to twist it. You know, you're going to twist it all the way, one way, twist it all the way, the other way. And the terminal block holes, which are not present on through hole style and it's easy to forget to add those. You do have to add them. They'll keep the board from shearing off the PCB because you don't have those through hole connections giving you mechanical stability. So those are not optional. But if you want a terminator, that's going to be your best friend and great for surface mount processes. I know why you humans cry. Yes, I know. This is a weird scene. But I was thinking about terminators and I was like, well, this is your hands up friendly terminator. I think that this is, you know, it's going to be more expensive than through hole terminators, which are very jelly bean parts. But if you only need one or two and you don't have to go through that secondary process, they could save you a lot of time, effort and money. So do check it out. They're available in the universe, lengths and stuff. On Digikey, in stock, do check the pitch and number of pins because there's like 20 different versions. Hi, on MPI. Okay, I'm going to break a little bit of rules here. Oh, I forgot one more thing. They come on a cut tape piece. Oh yeah? Yeah. Sorry, just one thing. All right, so I'm going to break. You broke some rules. I'm going to break some rules. Where are parts sometimes called jelly beans? Where are they called jelly beans? I don't know where the word jelly bean came from, but it means it's a generic component that has multiple suppliers, like an 0603 resistor or capacitor or some buttons. But basically it means it comes from, don't worry about it. Yeah, I don't need that. Oh. Okay, I got it. All right, so that's, if anyone has a better history of jelly bean, let us know. All right, so we're going to remind everyone of the code. We're zooming right along because we got to get out of here right on time tonight. And we still have a lot ahead. Let's remind everyone, Limp Pots, that's the code, 10% off. Ready for new products? Yes. Let's do it. Okay, new products. Very first new product this week is? This is an updated product. So the company that we used to get our EL wire from, they unfortunately went out of business, which is a shame because they made really great EL stuff. But we found a supplier that's almost as good, but a couple of products are slightly different. So this audio reactive EL driver, just kind of like a common, simple project for beginners because there's no coding involved. It's just audio comes in and it reacts to sound. So this one is no longer six volts. It's now five volts. It comes with the USB connector and you just plug into USB, but it's still audio reactive. It works a treat. And it's a great, like simple, you know, you want to have a project that is reactive to sound, but you don't want to do any coding. This could do the job very well. Just plugs into any standard EL wire using like the classic JST. A ton of projects, a lot of time and effort and anger and frustration would be saved by probably, for a lot of folks who want to do sound activated stuff, this is probably what you want. Yeah, maybe we go to the overhead. Let's go to the overhead. I'll just show this really fast. So you can use like a USB lipstick connector. I mean, anything with USB output will work. And you can see, as I speak, it's reacting to it and it gets brighter and it confuses the camera a little bit. So you can use this with any EL panel or wire or tape. Yeah, it's kind of bright in here. However, let's go to me real quick because I'm gonna try something. So can you hand that to me? So if you had a costume, you could potentially, you can even see it because you could potentially have this as like, on the mouth or something like that and it would look like it's talking. Animating. So hello. Hi. Yeah, that's kind of cool. This is neat. Yeah, you want to want that on your eye? Yeah. Great. That's my product, Emma. Nice. Okay. Thank you. All right, next up, I can do this one. So we have, we do women's shirts first in our store. It's a rule for us because if you're a woman, you never get women's shirts, and especially in like tech companies, they're always gigantic male shirts. So we now have male shirts because we did the women's shirts first. So this is a shirt from the share zone. It says, I don't collect NFTs unless you're talking about nice fucking D shirts. So this is our response to the people who continue to think that we do NFTs. We don't, but we do have a nice collection of T shirts. We do have an NFT gallery on adafruit.com, adafruit.com slash NFT. Check out all the shirts that people wear, lots of black shirts with skulls. And here's me modeling it. I don't have any NFTs, but I have the shirt. So check it out. Yeah, I don't either, but I have one of these shirts too. Yeah, but you know, we get blamed for it. Okay, next up. All right, next up, we have some more, you know, these are called like aeronautic connectors, these are not to be used in aeronautics, it's just the style. I think these are really neat. When I was at the media lab, we did a project with these connectors, but we were using the very, very expensive type. These are, you know, similar enough that they have the same look and feel. Again, they're not male spec, but they are a great alternative if you just want to have like a keyboard project or like any kind of user interface project that has a panel mount with this. Interesting, like safety lock type. Tiny lightsaber. Can I get it? It's a lightsaber for ants. It's a lightsaber for ants. So let's, let me go to the overhead because this is a kind of a weird connector and I want to show how it works. Yeah. Yeah, this looks just like the lightsaber that I was looking at earlier today. It does. Maybe the lightsabers were based on this. Look at this. It's a mini lightsaber. Okay. Okay. Focus. You can do it. You can do it. Okay, I think I got it. Okay, so it comes in two pieces. So we have another one, the YC8 series and it's wired wire. This is wired panel. And this is actually two pieces. So what's interesting is that if you try, you can't pull these pieces apart. This is the panel mount part and this is the connector. But if you pull on this, it comes apart very easily. So there's this little spring. You can barely see it, but there's a little spring piece that comes out. There you go. And if you pull it in, you can then remove it, but otherwise it's locked in. It's also keyed. All the red dots have to line up. They snap in very nicely. And again, you cannot remove it unless you yank on this part. So this is like, you don't have to worry about it coming apart from being pulled. But if a human pulls on it from the right location, if you're just holding it at this spot, it'll come apart very easily. This is a panel mount connector. So it's got a locking nut and a hex nut. And then you can solder to the four or five wires. We have a version with, I think I only, oh no, I have the five wire version here. So this version is five. Is this the other product? This is all together. Okay, so I can show, I can show this. Yes, we have a nice little demo of the same thing, but with nicer nails. And then the panel mount connector, four pin and five pin. The reason I did four pin and five pin is four pin is like USB standard and five pin is USB plus shield or something. You know, there's there's I squared C USB. There's a lot of things that four or five pins can do. You can do some, you know, simple SPI maybe as well. So the only thing to watch out for is the cable connector side. You really need to, there's a section inside of it. Can you go over it again? Yeah. There's inside you have to solder to these pin contacts and this comes apart. There's a, I think I need a tool to, I need a pair of pliers, but this comes out and then there's this collar that is collet that grabs the shroud of the wire. And so your wire really, really needs to be the exact diameter that we mentioned, which is I think like four to five millimeter and it can't be thicker. It has to be able to get through this little section in order for it to grab, hold on, there you go, for it to grab it so that when this part screws on, it's when you, when you pull the collar is what's grabbing onto the sheathing of the connector, the cable connectors. So that's the only thing to watch out for is whatever cable you use, make sure that the outer diameter of like the rubber PVC casing is within the range for this connector. And it's like, I think four to five millimeter or so. And it really has to be in that number. It can't be too less and it can't be more. If it's less, you can add heat shrink to the outside of the cable when you solder, before you solder it in and that can help give you a little bit of mechanical thickness for it to grab onto, but it really needs to grab onto it for this thing to work out. So yes, these are kind of cool panel mount and you know, quick release connectors. And they're like very beautiful. Next up, we have another version of the ESP32 S3. This is the room two. I think this has 32 megabytes of flash, eight megabytes of PS RAM. This is a maxed out. So this has like the most of the most of the most. And we just wanted to offer it because some of the other versions were not available. It's got the ESP S3 in it. This is a dual core USB native ESP expressed by controller with wifi and Bluetooth. It's got two USB ports, one for the debug port that goes through the USB serial connection. One is the native USB port for native USB development, which we use in CircuitPython. This is a nice little dev kit. I know we have like a couple of different flavors, but with the chip shortage, not every version of PS RAM and flash is gonna be available. So like, we wanted to carry all the different ones in case like, if you needed one and there was one with more RAM available, you could use that for development while you're waiting for it to come back into stock. But this chip is a new Arduino supports coming in. As of this video, it's being like merged into Arduino. CircuitPython, we're working on it as well. So it's a very new chip, but it's very exciting because it's very powerful and it's very inexpensive. All right, next up, we have a hill bunch of pots. That's why the code was Lynn Potts. Yes, we actually have one Lynn Potts. The rest are actually audio pots, the log pots, but these are dual pots. These are dual gang pots. We have them like one K5K, 10K, 20K, maybe 50K, 100K, and then mega ohm. So this is the end of the pots. Yeah, I decided not to put in like every photo because it's like 50 photos. They all look very similar. So what I did was I just put in the ones that were like, here's three. So that's just the single, we have like one single. And the duals are I think kind of new this week. The duals are, it's dual gang, there's two pots. Two's totally mechanically and electrically, sorry, mechanically they're connected. Electrically, they're completely separate. These are often used when you want to control stereo signal, they're all log pots so that they're good for volume control. Although there could be some other like tuning or fading or mixing or whatever that you want, two potentiometers that are like matched. They're synced up. So these dual gang pots will do the job. They have point two in spacing, you can use them in perf board. They're often used in synths, mixers, DIY audio projects, panels, modules, et cetera. We want to stock a collection of alpha pots and it's just easier to get kind of one of each. So now we have one of each. Okay, and to start this show tonight so I dilated our community, our customers, our Adafruit team and everyone who makes all this go is? This is the ADXL 375. It sounds and looks a lot like the 345 but it's more, it's the 375. It's 30 more than the 345. This is a plus or minus 200 G accelerometer. So we've carried another 200 G accelerometer, the ADXL 377. That is like kind of being discontinued. It's an analog output, high G accelerometer. We wanted to have an alternative for people who wanted to do rocketry projects or anything with a ton of force. I don't really, I don't know anything other than rocketry and maybe like race cars or like projectiles. What would possibly have such high G forces but if you need to measure high G forces like that, this is your break out. Robot soccer leagues. Robot soccer leagues. So plus or minus 200 G, not adjustable. That's the fixed range. You can change the sample rate. I think it goes up to about a kilohertz or so. You can use I squared C or SPI. It's got two interrupt pins. And we put on this breakout that Stemacutee compatible with four mounting holes so you can, you're gonna have to mechanically connect it strongly to whatever it is that's going to 200 Gs, right? So you have four mounting holes. You can use I squared C or SPI, your choice. What's kind of neat about the ADXL 375 is it's actually like the register map is identical to 345 or the 343. So if you happen to be using a library that has support for the 345, you can drop this in and then just multiply the Gs by like 10, whatever the number, you know, 10.5 or whatever to make it two or sorry, by 100 you can make it instead of plus or minus two Gs, plus or minus 200 Gs. And then the interrupt code and like the shock detection and SPI versus I squared C and the IRQs, all of them act the same. It's pretty much, it seems like it's kind of the same chip, but they took away the range select and they just made it so it's a lot less sensitive. It's good for up to 200 Gs. I'll say that there is an offset to these accelerometers and it's more noticeable because it's plus minus 200 Gs. You'll notice a 1% offset. And so these are not very good for measuring gravity. Like if you wanna measure gravity, which is one G, use our two G accelerometers or four G or eight G accelerometers. This is really not good for that. This is gonna be really good for, the thing is going incredibly fast and you have to measure very high shock or accelerations. Things that are trying to escape gravity. Yeah, yeah, this is not good for, this is not good for your general purpose. Like, oh, I wanna measure tilt or motion or even sports, you know, human level motion. This is for, this is for your jet. This is for your rocket. All right, and that is new products. Okay, don't forget the code is lumbot, 10% off the native restore all the way up to 11.59 at PM Eastern time. Tonight, lady, we're gonna do the top secret because there's a bunch. So while we're doing top secret, don't forget to put your questions in aderford.it. Discord's back. Yeah, it is. And, you know, if we're not around later, join all 32,000 of us because we're doing stuff in Discord all the time. I have some of the questions lined up, but let's go to top secret right now from the vault. So what we're gonna do is we're gonna play the videos of some floppy work that we've been doing and also we have, do you wanna just give people a reason to stick around? Yeah, I'll show a little gamer, I'll show the floppy desktop. Yeah, so we have the famous tiniest playable doom playing device there. Open source one. Yeah, maybe. Or maybe not, I don't know, who cares. So we're gonna play the floppy videos first and then I'm gonna play the latest thing that we did with the doom player. So here we go. Ada, what is this? I'm finishing up my last test for the QtPie ESP32, yeah, the text is backwards. The Pico board that I designed and I've been working a lot with over the weekend and doing some power tests. This is, I did functional tests over here by having it in this little QtPie board so you can emulate NES games. But for some people they really want low power functionality so I wanna make sure I've got that all fixed up cause it's really hard to fix low power mistakes after the board's been sent out. So here is my PPK from Nordic and you can see normal functionality, it's about 40 milliamps and then this is light sleep. So it's about 2.4 milliamps, not two to three milliamps. And then for deep sleep when I turn off the Neopixel I get down to about 70 microamps which is great because the chip is about 50 microamps and the regulator is also about 20. So total about 70. Early data, what is this? Okay, I've had a lot of success over this weekend. According RetroGo over to the ESP32 QtPie, that's this, it's got an ESP32 on the back of it, a little bit like this. I said that's the C3. MicroSD, iSquared C-Expander on off switch, little LiPo battery that it can stick here and a TFT screen. And I got Nefrendo part of the RetroGo working when you wanna play, you wanna play Dragon Warrior? Sure. Oh wait, sorry, that's a different game, new game. And I've got even audio working out the headphones so you can actually start to play these games and test them out. So Dragon Warrior is one of my favorite old school RPGs. It's by E-Nex, pre-Final Fantasy. But this is working and I only made one little mistake. Audio is coming out of A3, it's gonna come out of A0. But I'll fix that on the next board wrap. Okay, so Nefrendo works fine on the ESP32 QtPie with this little board. And I thought, well, maybe let's do Game Boy next. So this is new boy go, let's start a new game. And I remember playing this, I remember getting a Game Boy when I was very young. It was like a birthday present, maybe it was like 12? I don't know. But I played this game all the time, this in Tetris. I didn't have a Game Boy color though, just the Game Boy classic. Still, it's a great little game. And I don't know, I can't wait to like finish this. I don't think I actually finished it when I was a kid. All right, so Game Boy emulator works, Nintendo emulator, we're gonna try a couple more emulators next. All right, Lady, what is this? Okay, so I'm taking a pause from the floppy stuff, but for a good reason. This is an O'Dorei go, this is a really cool, like portable, you know, Game Boy emulator that had an ESP32 rover in it. And it can load cards off an SD card and like there's a bunch of emulators written for it, like Nefrendo, NES, New Boy, Game Boy, Sega, et cetera, et cetera. I still have one of these, they're not made anymore, unfortunately, but this was really cool, actually it was a really good little emulator. But what's nice is that I wanted to try to port the emulator itself to the ESP32 Pica so I can make like a really cute little gaming thing. This is my prototype. And you can see, I got the TFT initialization, like not quite right, but I do have TFT on there. And on the back is the QDPI ESP32 and SD card and some circuitry battery charging and all that. So it's slowly but surely coming together, first sign of life. Really, dude, what is this? One more emulator that works in RetroGo is Sega Master Systems, which means somebody was asking, can you play Sonic? And yes, you can get all the rings. Oh no, not very good at this game. The other thing somebody was asking was, is there cheats for Doom? And the answer is, you know normally you would like type in stuff on your keyboard, but with this, you can go into the options menu and under cheats you can, you know, do the chainsaw and vulnerability, 200 health, get all the keys and all that. Makes the game lots of fun because you can do all the weapons from the start. Boom, great for playing Doom on the go with all your favorite weapons. Early, dude, what is this? This is a three and a half inch HD floppy disk that has been formatted as a Mac 800K. I did that by tricking it by taping over the hole over here and I put this in the PowerBook 180 and formatted it, thank you for the PowerBook 180. It's 800K because 800K floppies are kind of interesting and I'm trying to read this on some of the standard PC, Sony or Panasonic three and a half inch floppy disk drive. But what's interesting is it doesn't really work. Here I've got it with Flux Engine. You can see the dots are sectors that read fine and you see like as you get to higher and higher tracks, you know the sectors don't show up and it's like they're okay for like the first few tracks but then they disappear. Well, the reason for that is actually kind of interesting. Mac 800K floppies are weird. Each track actually has a different number of sectors and the pulse widths change. So on the outer track, which is actually track zero, the pulses are very short and as they get closer and closer to the center near the hub, the pulses get wider because you want more magnetic media to pass under the head. And for MFM floppies, which is what normal IBM floppies are for floppy disks, the track widths, sorry, the bit widths don't change. They're like two, four, six microseconds and they're the same no matter what track they're on, whether they're on track zero all the way out here or track 80 all the way in here. So if you're trying to read Mac format floppies, the outer tracks will read just fine because they use the short bit widths but as the bit widths get larger in time but stay the same in physical space, these disk drives have trouble reading them. So we might have to do some special math to get Mac 800K floppies to work with this. It could also be the disk itself, more to come. And that's our secret. Yeah, I want to get some questions going. Get back in the vault. Rolling right into the questions. I have a bunch lined up. Great. And we're going to get through them really fast and I'm going to get you out of here because I know you have a bunch of hardware you want to do tonight. Who likes doing hardware at night? You like doing hardware at night. I'm also tired. Okay, first up, are you ready? Yeah. Okay, how do I connect the analog out of a microtroller board to speakers or mic input? Change of voltage. Yeah, so your voltage from a DAC is going to be zero to three volts and line in really wants zero to 0.7 volts. So you'll want a resistor divider, one quarter resistor divider and then put a, you know, one microfarad capacitor on the output and then you can pipe that into a line in or mic in on any stereo. That won't drive a speaker because you'll need a speaker amplifier but it can drive a powered speaker. Okay. We answered a little bit about the Jelly Bean parts. Basically it seems like it's a standard thing across the entire industry. Next up, what's the ballpark figure for the difference in the end user cost if you replace a single through whole part with a surface mount one? Is it a dollar? Is it pennies? I think the first one is like a dollar and then every additional one is like 10 to 20 cents. There is, it's the setup that's annoying. So if it's one part that's dual and you're gonna place it with a surface mount component, it's worth spending at least 50 cents more just to not have to go through that secondary process. Okay, next up. Any more DIY magnetic connectors coming? So looking forward to trying them out. Yeah, those went faster than I thought. I thought like, oh, they're not cheap. You know, do people really want these? They went quite quickly but we have some more in order. Okay. To the different ESPs, 32 S2 boards and modules that eight of themselves differ in flash or RAM speed on chip versus in module versus separate chips. I see difference in overall code execution speed across device types. There could be. The room and the mini are gonna be a little different. First off, the different sizes of flash and RAM may have different access speeds. However, all of those dev boards, all the dev boards do have modules and it's internal to the module. So code execution is going to vary based on whether you can cache the memory and how much PS RAM it talks to you. If you're not hitting the Q-Spy flash to get more instructions and you're not touching the PS RAM, it should basically be the same. For more details, because I don't have any insight into the low level timing of the internal PS RAM, that's where you definitely have to contact Expressive. They'll know the stuff or they'll have a profiler that you can run to get you more info. Okay, next up. For Apple AirTags, they've been in the news for being misused. Is it possible to see them with NRF 52s and have code analyzed if it's a new MAC address and has it also been around for you for an X amount of time? So in other words, did someone hide one on you? I think that they use generic BLE advertising and if they do, then yes, you can just use our central BLE examples. We have Arduino and circuit Python code and look for the MAC addresses and the MAC address is going to be fixed or at least something in the advertiser is going to be fixed because otherwise you can't identify the same tags. It's probably the MAC address and the MAC addresses for Apple are published. So you know what the chunk of AirTag, if it's an AirTag and it has a certain MAC address, you can look at like the first six bytes, sorry, the first, the three bytes of the six-byte MAC address and it will be a bin and that bin will match to Apple. I had an AirTag that wasn't mine with me. It was one of the ones I was testing and it was paired to another device and I was carrying it with me and now Apple phones say, hey, there's another AirTag that's traveling with you. Watch out. And so I thought that was kind of interesting. With the chip shortage, any chance of getting three older TFT feather wings back in stock? Yeah, we can't, a lot of parts became unavailable. TFTs were also unavailable. I think we did get some TFTs but we have to revise the chipset and then, because the chip, basically a lot of things that were like marginal stability became unavailable and so it's not that I've seen that you can't get chips. I'm just seeing you can't get the particular chip you want especially if you used it for a very long time because those were used in older processes and the older processes are harder to get fab time for. So you might, you're actually gonna see a lot of our designs getting redesigned and stuff that we could have probably waited a few years to redesign, we're being forced to do it earlier. Okay, any chance of SCSI emulation for the... I think so. I know that there's like SCSI to SD and blue SCSI. There's a couple of open source SCSI projects. I don't have any plans off. You know, I have plenty of floppy stuff to do. The floppy EMU, which does the floppy emulation stuff quite well. I think the RP2040 ironically could probably do a pretty good job of being a floppy emulator because it's got the PIO but that's actually not on my list. I'm actually more looking at archiving and writing floppies than acting like a floppy. I can answer this one. Could there be a filter feature on Adafruit Learn to go through all the projects? Yeah, drop us a note. We're always adding features. There are ways to filter and go through different paths on the site too. So you can drop me a note, ptadafruit.com with the filter request that you have and we'll probably get to it at some point. Next up, are you looking forward to any upcoming display tech? I am, I do want to see in person those transparent screens. Because there's one that like rolls up. I don't go to CES anymore. But I would like to see those. We saw one at the Google store. It was a transparent screen. I would like to see those and see if there's ones for people like us who are putting into projects and more. Question, does a digital accelerometer exist that doesn't use ADC? Well, the 375 we just showed off doesn't use, and obviously there's analog digital converter on the inside. But it gives you SPI or iSquirtZ out. So there's accelerometers that are analog out, but there's actually getting where most accelerometers these days are digital. Those are all the questions in Discord for this week. Thank you everybody, good speed around. Just remember, you can put questions there all the time. There's a bunch of us there, 24-7. All right. Okay, that's our show for tonight. Thank you very much everybody. We'll see everybody next week. You're a little tired. You'll get your second wind and then you're going to crank out more hardware because that's what you tend to do. Or you just crash out. Or I'm going to crash out. Yeah. I like to play Kid Icarus now on my little game. That's what you've been doing? Yeah, that's fun. All right. So we'll see everybody next week. Thank you so much. Thank you so much, Takara, who's running things behind the scenes in the Adafruit Slack for our team. Thank you all the moderators, all the community members, all the folks in Discord. Ask in great questions and more. Special thanks to all the customers for keeping us going. I think we're almost through the worst of all the things that's happened in the last two years. Very much looking forward to seeing a lot of you in person eventually soon too. But thanks for placing orders and keeping us going. We try to give as much as we possibly can. And we hope that your orders are a way of saying thanks because that's how we pay the bills here and keep the lights on and pay the staff and more. So we'll see everybody next week. This has been an Adafruit production here. Thanks, everybody. It is your moment of Xenar. Thanks, everybody.