 New York, it's Ask an Engineer. Hi everybody and welcome to Ask an Engineer. It's me Lady Aida with me, Mr. Lady Aida on Camera Control. We're broadcasting live from downtown Manhattan. That's where the Adafruit factory is where we do our manufacturing and kidding and chipping and coding and more. Got an exciting one hour show for you tonight. Mr. Lady Aida tell them what's on the show. Tonight's show as a code is kept weighing 10% off in the Adafruit store all the way up to 1.59 p.m. Eastern time. You either lose it or anything in stock. Use it to get 10% off of your purchase. You also get free stuff. We'll talk about that in just a minute. Talk about some of our live shows and the stuff we've been up to show until just happened. We have a recap from Desk of Lady Aida including great search. We also have some time travel. We're going to talk about some return of Aida box. Some of you have got your Aida boxes. We've flipped the switch. We'll be emailing folks. It's happening. The part shortage is pretty much over. So we're almost there. Do it from the mail back. I have a funny one this week. Do some factory footage. Some 3D printing. We've got some iron MPI brought to you by DigiKey. This week it is from ST. Some top secret, a bunch of that. Some new products. We'll answer your questions. We do that over in Discord. Aidaford.it slash Discord. Go over there. Ask your questions. Let me save them throughout the show but you can also just wait to the end. All that and more on, you asked it. You asked it. You asked for it. Ask an engineer. Okay. All right. So let's go over the free stuff later. It's free when we use the code. When you purchase from AidaFruit, I can also get the meat cove. 10% off. $99 or more. We get a free coaster. Made in a beautiful black PCB material with a gold AidaFruit logo and comes with four bumpers to protect your desk. Good for hot or cold drinks. At $149 or more, we have a free KB2040. This is a ProMicroPinout microcontroller board featuring the RP2040 chip with 8 megabytes of flash memory, a static T connector, NeoPixel buttons. It's great for making keyboards but also great for general purpose microcontrolling. It runs a whole bunch of different languages. Free shipping at $199 or more UPS ground and at $299 or more, we still have free circuit playground express. Let's grab it all in one. Dev board for learning electronics. Okay. Let's just do some logistic-y things for folks. Let me find our shipping alert. So if you place your orders Friday after like 11, the first business day after that is Tuesday because it is Martin Luther King Jr. Day. This is a paid day off for our team in addition to things like paid time off for charity. We're really into days of service. This is an official Adafruit holiday. So do check out our shipping pages here. It is a holiday. So that means if you place an order on something on Monday, the first business day will be Tuesday. So please keep that in mind when you place your orders. That just means order early. And then if you place your order that's expedited, just make sure you pay attention to all the notices on the site and more. And also there's weather. But to deal with, yeah, I had to deal with some things. Sometimes folks order stuff and they blame us for the weather. Not a lot we can do. There's weather around the country. It happens. So just build in some time for when you place an order. Yeah, there's weather. Okay. For our live shows that we do, we just finished up Show & Tell. Thanks so much, JP, for hosting this week. We're going to be watching this shortly. We didn't get a chance to see it because we're wrapping up the show. We did Desk of Lady Aida on Sundays. It's in two parts. Lady Aida, what was part one this week? This week I talked about some big revisions I'm doing, trying to finish up as many of those designs that have been out of stock because of part shortages. So the clue and the feather sense are two boards. We were missing a bunch of sensors. We got them in. We're ready to revise. We'll get those back in the store. It'll be awesome because I know there's a lot of people waiting for those two boards. Also showed off a high voltage UPDI programmer and I think can be a FF board that I'm working on. Okay. We also do Desk of Lady Aida. That's segment where on Desk of Lady Aida we have the Great Search, I should say. And on the Great Search there is Lady Aida showing you how to find things on digikey.com. What did you try to find this week? Okay, this week I was talking about how on the feather sense and the clue, the six-dough sensor accelerometer gyroscope, which we used to use the LSM6DS33, is fully discontinued. So let's try to find a replacement. And there are lots available. They're all in stock at digikey. So let's find a replacement sensor. There wasn't one that was pin compatible, but there was one that was a kind of functionally compatible and firmware compatible. And a lot of options that I showed how to check out the ST site to find the difference between all the sensors available. And then we picked one. Okay, I'm going to skip product pick of the week. You can watch it on YouTube or just watch GP show. Every Thursday, GP's workshop, we got a bunch. We're going to go over tonight. Keep dive on Fridays with Tim at 5 p.m. Eastern at 2 p.m. Civic. Let's do some time travel. We have our return of the Adabox information up on adabox.com, which is also a different dot com slash adabox. And on adabox.com, you can see that we were updating December 19th. We had our first batch of folks. So we will be reaching out to customers when it is time to update your payment information. If it doesn't go through or when your address needs to be changed, we ship adaboxes when we are like, here we go. So no other update other than we did it. We've got the parts. We're doing a bunch of testing. We have more things that we need to just get in boxes and get out to everyone. So the plan is just to resume adabox shipping as fast and as thoroughly and precisely as we can. And congrats to the folks who've got them so far. We started with some of the earlier customers that have been with us from the very start. So do look for your email about Adabox if you're a subscriber. And if you want to get ahead of stuff, just log into your account. Make sure your payment information is updated and your shipping address is correct. In other news, we have this on our website. If anyone's interested in our about section, it's a really difficult process that I'll be straight up. There's really no benefit of being a woman on a certified business. There's not. So we did this. I guess the benefit is we're showing that it can be done because there really isn't any woman on manufacturing companies. What happens is people on the internet will assume that we get something special for it. We don't. If anything, we get crummy emails from people saying, why are women doing this? I get them. My inbox. We try to not have a little more do these emails. But we're certified in two different ways. So you can check out our website. It's a certified minority on business. And it's also a woman on business. And I think we're the only one doing certified woman owned business enterprise that's doing electronics. So the reason and if anyone were to ask me, is this worth doing it? The answer is no. There's a whole bunch of things that we had to do and it took forever. And it's a long process and you just get ridiculed from people on the internet. So the answer is no. Tell me what you really think. The answer is no. It's not worth it. But there's a lot of things aren't worth it in life. I think that this, you have to find the reason for yourself to do it. And I think for us, we can say to anyone that, hey, this is possible. And here's something that if you're not an alien, you're definitely human. If the more can do it, other people can come along. And this is not impossible. It is possible to do. Well, because I think sometimes it's like, oh, no one could have built a pyramid. It's like, no, humans did. You know, humans did. I didn't get that connection. That's all. Yeah, humans did. We're actually pretty good. We have a lot of time. Yeah, we're actually pretty good at stuff sometimes. There are, you know, there's a lot of problems with how you build things sometimes. But humans did do it. A lot of challenges. But we can do stuff. So that's the reason. So hopefully this will inspire someone to do it. I mean, like, it's just a, it's a different time too. You'd be aware there's no, like, tax, right? Yeah, there was no, there was no upsides. In fact, like I said, it's a lot of, it's a lot of time. Yeah. And there's people that like today I was deleting comments off of our, whatever, one of where we post photos, it's like, why is this woman holding electronics in her hand? It's like, I'm going to do. So, you know, there's across the road. Yeah, I don't think it was a riddle. All right, Mailbag this week. I thought this was funny. I'm trying to bring back Mailbag because we just got through more of the park shortage and we posted some more revisions and this is a funny one. Anyway, with those constant supply chain difficulties, how often do you have seriously considered running to the nearest mountain to start raising alpacas or something? You know, here's the thing. There's probably a limited supply of alpacas. I know, there's probably other either like we can't get alfalfa for them and the combs are unavailable and alfalfa, alpaca feed, I don't know. So, no, I think the thing is just like everything else, it just has to be worth it. So, if anyone said, should you run electronics business, I'd say no. Should you try to navigate a global supply chain that's still kind of fractured? No. But then you can say that about anything. It's like, you know, should I go work at a bank? No. Should I go build the pyramids that they have like rock shortage? Well, you know, they go somewhere else and it was, I don't think a lot of people were building and wanted to build them. Yeah. They're forced to do it. So, you know, there's a lot of, so you could find a reason not to want to do something at all times. So, we didn't really think about alpacas at all. But if you think about it, there's been some type of park shortage in some way for everyone. You know, if you did consumer electronics in some way, you know, there was a PlayStation shortage. There was medication shortages. So, there's overabundance for some things and then there's, you know, scarcity for other things. You have a coin surge shortage. Plenty of that. Lots of cheese. So, there's things that, but, you know, again, like, do you want to do that for a living? So, no, we haven't thought about going and raising alpacas. But, you know, it is nice when people understand what's going on, especially in this industry because I think that a lot of us know. Okay. Susan Python on her mark. Okay. This week in Python on hardware news, you can check out the patch release for MicroPython. We're a sponsor and supporter of MicroPython. We have a neat article that I put in there. It's a crazy supercomputer comparison against the modern Raspberry Pi. How does it compare? You know, if people want to build retrocomputers, we have a cool thinking machine build that uses a Raspberry Pi as the brain. So, 1978, the crazy supercomputer cost $7 million in a way, 10,000 pounds, and it was the fastest computer in the world. And now Raspberry Pi computer is about $70 and, you know, according to this article and more, I mean, there's, there are specifics that you have to look into, but it's about 4.5 times faster than the Cray one, which is kind of cool. A little bit of recap from our, you know, pseudo editorial where we talk about Arduino and manufacturing and counterfeits and clones and all those things. Interesting discussion. If you want to tune into it, it's from last week's show. And then more Python on hardware. There's Python on kids. You can look at the use of Python inside of Google Sheets. You can look at what your most popular programming languages are. Who knows how old they are? So, assembly is 77 years old. Yeah. Fortran is 70. So, it's like, it's interesting. It's like Fortran, like, which is still used by some people, is like ancient. Yeah. Like it really is. And a little bit of a recap of our shows and more, lots of stuff in the playground. You can see your projects or others at the playground. We'll talk about that with Learn. And altogether, a giant new learner. I did want to talk about one thing, which is, it is 2024, where we're putting up the new graphics. But this is the start. For Circuit Python, for every single year, we have a post about Circuit Python. So, let me find the, I think I have it up here. Yeah. I didn't pull up the post up here. That's okay. You can go to our blog, and we'll also get the word out more. And just search on any search engine and search for Circuit Python 2024. And you can see our post about this. What type of things do you want to see in Circuit Python in 2184? What things do you want us to work on? What things do you want to see updated or changed? You know, my big thing is now that we have an open source Python powered camera, I really want to see maybe more stuff that we can do to expand that. So, that's my, oh, I'll write that up more later. But now's your chance, everyone, to do your part, which is ask away. Yeah. We're nine versions in. We'll talk about, we have the coming soon poster. We have the Circuit Python poster that we'll be, yeah, that we'll be putting in the store soon. So, we have nine versions. We'll probably have, you know, 90 more, 90 plus more, depends on how long we want to. You can't wake up Circuit Python at seven years old. Yeah, 70 years old. And it's your chance. Yeah. So, check out the blog post. We'll get the word out more. Scott's out. There's a family thing that came up. So, we'll make some noise about it, you know, even more. You have plenty of time, but do check it out. This is all delivered to your inbox every single week. Spam free at itfordaily.com. We do not spam you. We do not want this part of your customer experience. So, this is why it's a separate website. And it's a need for daily. Okay, let's do some open source hardware news and also open source hardware projects, products, designs and more. You may remember this. You did a video and you're still crediting when you use chat GBT with code. Yes. So, we did this video and then we did an article. Yeah. And then we, we tried to get the word out and I contacted all the open source organizations that you probably all know. And I said, hey, take a look at what we're up to. And now I'm back to us. And the reason we, I don't know, the reason we asked about it is we said, hey, like we're actually crediting using these tools. What do you think open source organization and whatever. So, we were trying to figure out like what are folks going to do out there. And there's a couple open hardware companies that are certifying hundreds of designs over the years. One is Adafrit. Another one is Sparkfun. And I saw that Sparkfun had their 20th anniversary video and Nate, the former CEO and founder posted up a video. I was watching him and like, oh, cool. Let me tune in to see what Nate thinking about. And our company used to do stuff when it was like smaller. And like we were all hanging out together. That's just like now 15 years ago, 20 years ago. So, you don't get a chance to talk to everyone. And I also think just the nature of things. Companies are more competitors now. I don't see it that way, but I understand. There is, you know, competitive advantages for companies not to talk. I think everyone should talk. But we don't really have a forum or a place where people talk about like, hey, here's what's important for open source hardware anymore. This doesn't happen. It's very different. Lots of reasons for that. So, I'm like, well, that's not the way I roll. So, I posted up in the open hardware forums and I'll show that off in a second. And basically saying the same thing. I'm like, hey, is this interesting anyone? And then as I was doing this, Sparkfun had a video where they're talking about like, hey, happy 20 years. What's the next big thing? And so, here's a clip from it because I thought it was interesting that Sparkfun is talking about AI for open source software and hardware. So, here it is. So, the advent of name your AI is going to write the code for you. Something else is going to design the board for you. Now, we are just going to say intentions and something will be created. I need a thing that does X with these other things. And rather than hammering on that for years, it will be created in weeks. And I'm very excited about that. I think that's really good. Sparkfun can play a part in that and it'll make my job easier. Yeah. I'm very excited about the future. I'm ready to build new fun stuff inside of it. Okay. So, here's the Oshawa forums where I posted up. Like, here's what we're up to. Here's our, we have our, trying to find our article here. You can go to the article on our website if you want. And you can see what we put together, the links, the code, the more links to the actual chat session. Like I said, I reached out to OSI and Oshawa. In your back, I have it in discord. I put this in the Oshawa forum. So, if you all have opinions and weigh in, basically what we're suggesting by example is if you use these tools, credit them. So, I'm curious how Sparkfun is going to do it or Arduino or, anyone who does this? Yeah. And I'm curious how they're going to do it because we went ahead and just said, well, we're, it was trained on the Morris code for sure. So, we're going to link to the chat session where the more is interacting essentially with our own code. And then we're going to put that as a credit in the read me file that says this was, you know, made in collaboration with and then linked to the model of the date and then a link to the actual chat session. So, you know, more on the radical transparency side, but this is the first time that I've seen someone publicly talk about using AI and, you know, there was the Arduino ID screenshots of it. And then also talking about hardware. How do you credit hardware if you're using this AI tool? So, we have our standard, which is if we use any of these tools, we disclose it, we link to the model, the date. And then we also chat gbt has the log, the actual chat session you can link to. And so we did that. Now, you know, the other side of this pendulum is there's people that are like, well, don't use these tools are the worst thing ever. Everything sucks. Terminator is going to take over the world. That's not realistic. I mean, people are going to use these tools. In fact, the more honest one I got feedback that I saw was, well, don't tell anyone use these. And I don't think that's, at least they were honest, well, sort of honest about it, which is like, well, don't tell anybody use these tools because that's what's happening right now. Developers are using copilot and yeah, in VS code and I've used copilot and VS code. And I know people are accrediting copilot. Yeah, I think it's more of an ego thing where it's like, yeah, like, we use these or, you know, someone might be public about their disdain for, you know, AI generated images, but that's separate from a language model trained on like, for example, your GitHub repositories that you're using to generate code. I think this is an interesting topic. I think this would be a great topic for the open hardware summit. I just don't think that there's an appetite for it because I think this blends into the like, oh, well, there's competing companies using these things and no one wants to talk about how they're doing and what they're doing it. So instead of just like, talking, we actually showed what we did, made a video, linked to the chats, and then put this out there. And I emailed all the organizations and it's like, here it is. And so that's pretty much it. I'm, you know, here you go, everybody comment, talk about it. I think later on, there'll be more interest in this when, when someone has to decide. The question about open source hardware and software is if you're publishing designs, but then you change your mind to make a closed source, but use these tools, you require someone to sign the NDA or you decide to do something like, well, parts of things are open source, but you're using these tools and it was trained on open source. I feel like you're going to have to decide what you want to do eventually. So that's our like, hey, here's what we're doing. We think this is a good idea, but maybe someone else has direction. It's an interesting future. Yeah, I don't think it's going away. So the question is, how is it going to, how are we going to adapt to, yeah, I think just documenting it. Okay, so let's do the guides of the week. Yeah, so let's go to that now. So we do a bunch of open source hardware linear. Yes. What you got going on this week. Actually, a couple guides. So we've got the 3d printed camera case for memento that's from known Pedro. And then we've added a bunch of updated pages to the memento camera board, including a page on how to make animated gifts. So the camera itself can take photos and then turn them into gifts and then like the gift format and then stack them together to make an animation. And so JP wrote a nice page showing you how you can set up the camera's default camera program into gift mode. Okay. And then of course we have playground. You can check out playground. There is a bunch of guides. This is from you, the community out there. This is our ad free. Anyone can view without having a login, your guides that you publish. And it's all the things that you can make and build. So some of the people from the community here, some of the folks are here from the chats. Say hi. Thanks folks. And do you check it out? Let's go and do some hardware videos. And that's some factory footage for the week. Let's do some 3d printing. We're going to play these back to back. We've got a camera case for the memento. And then we got a cool speed up ticket away. You can 3d print your own snap fit enclosure for the memento. Adafruit's all-in-one camera dev board for creating your own fully customizable digital camera. The memento features an ESP32S3 chip, a 240 x 240 color TFT display, microphone, speaker buzzer, and six user buttons. On the flip side, it's got an OV5640 5 megapixel camera module, an SD card slot, accelerometer, lipo battery charging over USB-C, and three expansion ports for additional sensors and modules. It comes preloaded with software demos. Here we have an onion skinning feature for making time lapses, and you can switch between colored filters with the user buttons. Press the shutter button to snap a picture in your preferred resolution of choice. You can 3d print our snap fit enclosure designs in your favorite colored filament to keep it protected. Attach a lanyard to the stylized loops for on-the-go-wear ability, or add a threaded tripod screw for those lockdown shots. The memento features native support in CircuitPython with the Pi Camera Library. You can download and install the latest version of CircuitPython. With the built-in tiny USB bootloader, the board loads like a USB storage device, so you can drag and drop a U of 2 file making flashing new firmware nice and easy. Get the memento and accessories from the Adafruit shop. Links are in the description. The 3d printed case has two parts that snap fit together. Start by connecting the battery and place it on the battery outline on the front of the memento. Place the board into the back half of the enclosure with the display and buttons fitting into the cutouts. Then place the front half over and press them together to snap fit them shut. You can install a threaded tripod screw adapter to the bottom of the case using a flat wide tool. We hope this inspires you to check out the Adafruit memento for making your own camera-based projects. Okay, don't forget 3d printing every single week on Wednesday so you can learn how to make this and more on 3d hangouts. Let's jump over to unipi but first don't forget to cut the cap wing. All this free stuff could be yours. Let's kick it off. Unipi! Hi Unipri, you're brought to you by Digikey. This week it's ST. Ladyeta, what is the new product introduction of the week this week? Okay, I'm glad you asked. This week from ST we've got this awesome battery monitoring system based on the part number. It's the L9963E which is the new generation of their more popular L9963 battery monitor and balancer and this is an automotive grade battery pack management system and you know I don't know how many people who are watching this show are creating their own cars but there's definitely people who are doing e-scooter projects or go-karts or micro mobility or they're working on hacking or modding wheelchairs or other devices that use big battery packs and so having a really good quality battery management system something that normally would be only sold directly to automotive companies you can now get it from Digikey. So this is the chip the L9963E but we're also going to be talking about the eval board because the eval board makes it a lot easier to use this chip because there's a lot of pins a lot of components that you need. So first up you know the battery in the car that you have if you have an internal combustion engine is just something that drives like the stereo and the headlights and you know the blinkers and stuff it isn't something that actually runs the car itself and these batteries are you know basically usually 12 volts lead acid batteries they're big they're heavy they last you know like a decade almost they're big lugs and they provide you know just the positive and negative terminals that you connect to your battery your internal combustion engine charges the battery and then you know that's why if you let it sit and it eventually self-discharges you need something something to give you a jump to get started but if you have an electric vehicle there is no internal combustion engine because instead you have this gigantic battery pack and the battery pack is what drives the motors that are connected to the wheels there's no engine there's an electric motor instead and you can't use a lead acid battery because it would be way way way too heavy and it's not energy dense enough instead you're going to use um lithium ion battery cells much like this this is kind of standard 18650 cell this one has like a blue plastic coating and a cable connected to it because we stock it um and then you know these this is the kind of standard size often made by companies like Panasonic and Sony in fact when we um we went with Digi to visit Panasonic they're like yeah you know a huge amount of our business is selling electric vehicle batteries and you can put these in packs in this case is the parallel pack where you have three cells and you can see the three cells parallel connected to give you larger capacity but the same voltage and in an EV you're going to have strings of batteries that are then parallelized so you put you know a bunch of cells one after the other to give you about like 48 volts although that number may vary and then those strings are parallelized to give you a lot of current and then the battery packs are just like enormous um the thing to deal with with these batteries is you know first off the energy density is very very high and so you have to safely charge them and discharge them and you also have to manage the battery life um you know the batteries are when they're fresh they have a huge amount of capacity and then they slowly have less and less capacity but ironically you don't want people to think that you have more capacity than you've got like you want to kind of have the capacity be like some standardized you also don't want to overcharge the battery and so as I was reading about this I learned like oh you actually like charge the battery a different way based on the aging of it and that's one of the things that a battery management system will help you with so uh most important thing is to manage the current going in current going out and the voltage across each cell unlike the lead acid batteries that are used in internal combustion engines you have to monitor individual cells because you want to make sure that they you know there isn't one battery that is charged or discharged at a different rate and as the batteries age I mean when they're first made the packs they try to um test each cell and match them all up but just over time temperature you know variations uh each individual cell the one of the thousands in a battery pack is going to act a little bit differently and so to do that to manage safely having a battery pack you have to make sure that each one doesn't get over charged um and so you have to uh balance them to make sure they all have the exact same state of charge and same voltage across them so uh you know this is like a diagram from the um presentation that ST has um you can see as the uh batteries get discharged and the cycles keep going the more they're disbalanced the more the capacity is affected so you really want to make sure like you don't overcharge the good batteries you don't undercharge the bad batteries and to do that we have a passive charge uh discharging balancing system uh so it's active and passive active is a lot more expensive passive basically just means that when it's charging a little bit of current is drawn off of the charge rate and um that makes it so when you monitor the battery just making sure that as it gets close to the 4.2 or 4.4 volts uh you know the high voltage for the constant uh constant current you know max charge voltage um you might activate one of these internal fats that will drain off current um and slow down the charge rate of the really good battery so that matches the worst battery so basically this means that when you're charging the charge rate is going to be as slow as the worst battery in the pack but in the end you get like a perfectly balanced uh cell and it you have better battery life overall at the cost of slightly longer charging um chip is kind of complicated you know I didn't read every register basically you um need to connect to every individual cells on the left hand side there's all these like internal fats and connections and you need a bunch of passes sort of carefully monitor each battery cell um there's also a bunch of temperature monitors you can connect which is important you want to make sure that when you're charging uh you monitor every other battery or so so you you don't overcharge based on if it's too cold or too hot you have to change the charge rate and then um you can see like it's it's pretty pretty complicated board just why actually recommend the eval board because for like 40 bucks or so you get everything and it's ready to go and another thing that's interesting like this one is yes she'll develop about eval board so the bottom there's a port you can connect uh tip to 14 in they're parallelized here but they should be serialized and the isolated communication it's interesting so you know obviously you've got this very high voltage battery monitoring system and you want to make sure that you charge the battery safely but also you want to make sure that that 48 plus volts doesn't feed back by accident into your low voltage electronics and also you know there's a lot of current moving around a lot of emi to make sure that the battery protect the battery management system is protected um from itself and your microphone is present from it it uses this isolated spi interface and so what you see usb ports up there they're not truly usb it's a usb mechanical connection but it really is using a differential isolated communication protocol um that uses spi over this differential set and there's a separate board that you'll have to get to use this eval board that will convert your standard four wire spi into the iso spi just fyi um and this just shows the um interface uh so yeah you have um fully isolated communication between each board and they can be daisy chained so if you have multiple battery packs you just chain them together over this four wire uh isolated interface and you can address each one we did find a library the chip is fairly complicated but we found that there's a cool student um electric vehicle group that published a library on github for stm 32 chips um so check it out if you want to get started with this uh chip in this board again i recommend getting the eval board um but you can quickly query it ask it about like the state of charge tell it how much you want to um balance or debalance um everything is like crc and um you know isolated and protected so it's like again it's an automotive grade solution but you can use it for making your e-scooter available did you key it's in stock yep so that means you can buy it you can actually buy it all right that is a sick sign of pii oh righty the big code is kapling we're gonna try to get them here right at the top of the dot so in order to do that we're gonna just go work your new products we do that okay first up the coming soon this is our circuit price on nine poster we have a new poster vendor um we were using a poster company and they didn't like that we weren't using them for every single one of our packaging needs and goods and told us to buzz off so it took us a took me a while to find another poster vendor so we should have these in stock soon um we'll are by bruce yeah so this is you know you can connect hid devices and displays and we've got usb host um so some cool stuff yeah okay next up next up we've got a whole uh gaggle bunch of these power supplies different configurations the reason i like these power supplies like we already stocked five volt uh five amp power supplies from the raspberry pi foundation and three amp for their pi fours and pi fives they don't have this cool switch built in and the switch was kind of like not only is it a switching power supply but it's a switchable switching power supply so these are all five volt output and some are three amps and some are four amps the four amp one is going to be a little bit more expensive it's also a little bit bigger but these are great for use with your raspberry pi four which has a usb c connector you can also use them with the pi five um the three or four amp one will work just fine um i'll say if you're using like all of the possible ports and they're one amp each and you've got like multiple displays and um disk drives connected over usb you might need five amps but like 95 of people do not need a full five volt five amp power supply three amp or four amp will be fine um and again that switch is pretty cool because you can now like really cut power to your entire setup does the switch cut the mains um well there's no mains power the mains power is is in the transformer and in the brick and then the switch is for the five volts that comes out of the usb port yeah a switch for that would be like on yeah that'd be on the block this i mean the but it's a switching power supply there's no load it's not going to use any current it's not like old style um where you know the current would still be going through a transformer there's no it's it's smart so it's not going to be drawing power even um even if your power the switch is turned off on the five okay cool yeah and make sure you look at the product page documentation yes there's a couple ones there's like a vertical style horizontal style and the high volt high current this is four amp those are three amp okay next up next up uh by request from jp we have these silicone coated wires in different colors we got like the pack of like red black you know orange green blue or whatever but he's like white he's like i want more cool colors so this is extension cables about six inches long um and they come in a bunch of different colors you get 30 so i think it's like five wires and six different colors okay and then the star of the show tonight besides you lady ita our community our customers our entire team of data for the mixings go and all the folks that are totally into sharing and making the world a better place through science technology and engineering and more this was the m stem stands for more more uh this is a new feather wing um by request but also i thought it would be a fun build it's a capacitive touch 3.5 inch diagonal feather wing with lots of pixels this is basically the biggest display you can get with spi interface um i miss spelled capacitive somehow i think i was working on this really late at night i will fix that in post um next board but you know you can order now and get the version with typo and it might be worth more in the future like a miss strike on uh on a stamp uh since the feather wing which means you can plug a feather into it so let's go to the overhead i'll show in demo so this is my prototype so it's green and also has the typo i didn't catch it in the beginning um but otherwise it's the same hardware and you can plug in any feather into it i will say that the best feathers to use because it is a big display are ones that have a fast spi port so the rp2040 the esp32 the m4s you can use this with the 8266 and the m0s and the 328 and the 324 but it's going to be a little tougher um they're not going to get as high speeds it's going to be slower updates definitely the esp32s are going to be fast every 2040s not too bad either uh so you plug in the feather you get a stomach ut port um this nice on off so that you can see that the backlight just turned on turned back off backlight driver and then um it communicates over i squared c for the touch screen and spi for um the uh display itself turn this so you can see adab on in all his glory um so this is the display and it's uh displaying over the micro sd card so the micro sd card slot over here and the capacitive touch is multi touch so there's five uh touch points available so you can see as i put four fingers on it can track each point individually um i guess i can use five fingers but that's kind of clumsy if you use your thumb um so you can have a irq line on the uh capacitive touch to make it pretty fast um uses the ft 5336 and then the display itself is an hx uh five three seventy nine d i can never remember the numbers but start with hx and we've got um drivers for that uh for arduino and circuit python and that's our new product thank you with that is the new products of the week okay doki so we're gonna answer questions you can do that um you can put your questions on discord or whatever you have some lined up but we're going to do some top secret while you put your questions there and then we'll see you in the chat and read these off all right so first up for top secret we're going to play video and then we're going to go through a bunch of new designs take it away past you how related was this oh so we've been doing revisions for various boards and stuff but one of the other things i've been doing is revising the tester procedures so historically for stuff like the feather esp uh 8266 and the esp 32 feathers because they have a usb serial converter i've had to use a raspberry pi computer to do the testing and so the raspberry pi would connect over usb and programming using esp tool but now that we have um usb cdc support natively in teeny usb i'm using apico through bitbang usb which can actually do the programming for an esp 8266 or 32 via a usb cdc device which is actually kind of cool there's like four layers of coding that needs to be done um but what's nice is that um there's no linux involved it's super fast it's super compact um no sd cards or anything so uh we're going to be updating all of our testers to hopefully get all of them converted over to be pico-ified as i put it okay and then we have some boards that we were we were posting these around i might this might be a repeat but there are so many revisions going on um it's mom's time you know this is the clue revision um so like i said these these revisions are coming soon the clue in the feather sense um i needed to get a replacement for the six doff sensor um you covered in the uh great search i found some good alternatives it's just a rendering showing the board otherwise every other sensor i was able to get again every other component so um should work pretty well with existing projects you all you have to do is update the driver for the xl armor and jario what's this um this is oh this is the uh ad 7 7 8 5 uh this is an hdmi to ttl converter i have to get back to this we started this over like holiday break um this is a board to replace the tfp 401 um it's an hdmi to ttl converter so i can take hdmi signals and and i displayed on our cool like square displays it also has i2s output and also got this going on uh this is the feather sense so like the clue had to replace the six doff sensor um but this will be implemented soon we're going to get these back in stock which i know people are waiting for uh this is the high voltage updi programmer so as i'm working on a t tiny based boards uh once in a while you need a high voltage programmer that gives it a little 12 volt pulse to get it reset um and so this board has a little boost converter and an analog switch that'll do that and the can bff kind of what you expect it's a qt pi board that adds can bus support with the mcp 25 6 25 that's a um spi to can converter that we've used in a bunch of feather wings and boards it's uh it's like the mcp 25 1 5 with the transceiver and a chip it's really well supported um and there's a little jst ph connector for getting the can signals and finally this is one of the boards i designed february 20th 2020 um and then never got it fabricated because i just got really busy and then i couldn't get parts this is the itsy bitsy esp 32 so it's got esp 32 pico module on the top which is an esp 32 classic with eight megabytes of flash two megabytes of ps ram's got a new pixel stomach qt uh we set a user button and on the bottom it's got the usb stereo converter and a um five volt uh shifted output pins you can use it with neopixels that's not a secret lots of sweet phew okay playtime for questions we're gonna roll right into that but don't forget the code is kapling 10 percent off use it hey support a uh woman owned company because there is no good reason for us to continue to certify being a woman owned company because you just get dunked on the internet for having women with electronics holding them so dare you you just become a target for unending ridicule um but uh we don't do it for them do it for you we do it for y'all and for the discount so you can buy some stuff and that you know that that's helpful um we'll salty about that this week okay um let's do the questions you ready yes here we go okay uh questions this week i have these uh the question is why is there woman only electrics yeah they are that guy in his sock puppet accounts from our various social media networks um okay i had a question for liz during show and tell you said that you might add midi or cv what cv uh so cv is a very old system but it's also used modernly for modular analog synthesizers where you send one usually it's one voltage per octave so it's a constant voltage so the voltage tells it what note to play um it's an analog signal whereas midi is a digital signal okay this is a request for circuit python i would like to have circuit python to have nintendo switch controller compatibility in the uh mid hid realm well you know you can actually add hid devices fairly easily um take a look at the library that dan halbert wrote and maybe try out oh this is interesting this is kind of a uh answer to the question that was asked any plans for an esp 32 it's a bit c and there's esp 32 it's a bit c because that could be a great uh w led board well congratulations is this the one that you're that's the thing that was yeah i mean it's from years ago yeah we're working on it depressingly a long time ago but um it's gonna get done for capacitive touch it only registers fingers and likes is that one they're saying that because it's mistyped yeah it's capacitive i thought that was a question capacitive okay it was into the p i could have sworn i fixed that type before over pcb's but like i didn't didn't see it yeah happens once in a while uh let me add this down here okay so that question wasn't really a question it was just because it was typo okay um to answer the question out a few weeks ago you can pop out the little clear plastic fan in the official raspberry pi five case to use the metal heatsink and fan okay good to know um is there any way to monitor the remaining value on a gift certificate um email supported a to fruit dot com just off the top of my head i don't think that you would be able to get access to someone else's once you send it to them yeah so um there might be a couple like well um not if the following but if it's yours you should be able to um but email supported a different type of um our team will help you out who answered all those types of questions all day long um the team of the editor creates amazing 3d prints for new boards have you ever considered selling a limited amount during the first few weeks of a product launch as an upsell well the issue with that is you know we put out the um files for people to print on their own um we hope people will print them out um that just starts to turn into another business but um because people would say i want a different color i want this type of thing and then there's a shipping cost with it um limited edition could alleviate that which is like hey you know we only have this many um we are looking into um having 3d printed cases um or more 3d printed like things for the boards that we have yeah so we're working on that we want to do it in a way where there isn't kind of unending customer grief where um they're happy about what it what they're getting and we always post files so that's that's the easy part the hard part is having something that we would be fine with saying here you go and more than just a limited edition maybe having available like kind of forever so we'll see we're working on it um is there it's a busy perfume named bikini or at least you know the polka dot not yet no yeah that's a good idea uh cute little polka dot board yeah okay um working on some ideas for some interesting um pcbs um gress of rate of hurt the upcoming sp it's ebitzy is the five volt pin output only uh is the five volt pin output only yes it's output only because if you have a five volt input you would just use a resistor provider that works great it's very precise but it's very hard to shift a voltage up um so there's a there's a single pin that would give you a five volt output okay it's you'll see it we did okay good work ladies yay speed around that which but i got there's a lot of questions a couple minutes to spare so that just means we can do um well we close our questions and of course you can hang out in the chat everyone's around adford dot i teach us discord um that is open 24 seven we have great moderators and more do make yourself at home and hang out the other chats will of course close down after our video stops broadcasting um don't forget the code is capping all this free stuff could be yours free free free and helps supports us an open source hardware company in new york city um don't forget yes don't forget um on monday it's holiday it's marlithking jr day um so if you order something after 11 am on friday it will not ship till tuesday um just keep track of the shipping information on our website and more um oh i'll uh i'll jump in for this one where can i get more information for nintendo switch controller support so where would they would look for the hid support information yeah check out the learn guides we have hid circuit python yeah and you know help and discord help with circuit python discord they might have some tips for you um there's also probably a lot of if you search for like you know microcontroller switch controller your microcontroller switch interface uh probably other people have done like like the hid interface documentation so then you'd have to support that to circuit python yep okay um learn is probably your best but because we have a lot of examples yeah we do um so that's our show for tonight thank you so much everybody thanks day behind the scenes thanks to everybody who's uh in the chat and more we're not going on tonight thanks for hanging out with us and we'll see you throughout the week and of course next week to spend native reproduction here comes your movement movement your moment of zener sensitivity it's like misspelling for words can i everybody