 Life from New York. It's ask an engineer. Hey everybody and welcome to ask engineer. It's me lady Ada with me Mr. Lady Ada on camera control behind the camera We're here for ask engineer broadcasting live from downtown Manhattan in the secret Adafruit headquarters Slightly off of Adafruit main headquarters We've got a fun show for you night with all sorts of products and codes and tutorials and videos and more including some amazing guides and videos Lunch, take it away and it's the lady and tell them what's on tonight's show on tonight's show the code is a T tiny 10% off the native restore all the way up to 11.59 p.m. Or when I put our kid to sleep We will have a bunch of free stuff We'll talk about in a second that you can get as you add things to cart But this is 10% off anything in stock all the way up until probably the night ish We're gonna talk about some of our live shows including show and tell which we just did a few moments ago Talk about from the desk lady Ada JP's product pick of the week and a little bit of a preview of what's going on on JP's show this week from the mail bag Some advanced manufacturing made right here in New York City. We got some 3d printing some top secret some new products We answer your questions. We do that over on discord. It's Adafruit dot it slash discord or Discord dot gg slash Adafruit that gets you over to discord That's where you answer all the questions all that and more on you guessed it ask an engineer Okay, so first up lady Ada. I mentioned that code 80 tiny's AT 80's AT 80's AT ATINES We have free stuff. That's right. We have freebies $99 or more you get half sized from a photo breadboard people love this because it's great for taking your Breadboard projects and making them permanent. I designed this for myself, but you can use it too Um one for a night or more. We've got the kb2040. It's an rp2040 board with four megabytes of flash A super speedy 130 megahertz cortex under a processor pro micro gpao layout usb c Stemic ut buttons and a little neopixel. It's great for all sorts of micro controller projects We've got a ton of rp2040 code. You can run on this in arduino or circuit python 199 or more you get free ups ground shipping in the continental united states and 299 Or more you get a micro bit v2. Um, these are back in stuff We want to celebrate the micro bit v2 works with make code and you can also run micro python and circuit python on it this uh Cortex arm And fours is it nrf52840 Is really powerful. It has all these cool sensors on it and there's thousands of tutorials from school kids around the world Now usually after I do the code and we talk about the free stuff I say hey, don't forget to have two factor authentication on your account. There's been a part shortage There's still some things out there in the world that are hard to get But we have order screening to make sure people aren't buying stuff and then re reselling it on like ebay for like 500 dollars People are trying to do that with uh, raspberry pies and then there's also stuff that was just Supply constrained and we wanted to make sure we had a chance for everyone to purchase something So a little bit of a story. This is kind of fun. Um, I can I will I will yeah I will start at the end of the story and then I'll uh go to the beginning So now aid fruit is better business bureau accredited There is a criteria that you have to hit they have to Agree that you're taking care of customers and you're resolving any issues That you're sending goods and services, whatever it is, but um, let me start at the beginning. So the way it works is um, sometimes when we ban the people who are using bots or they're Trying to get extra raspberry pies so they can sell for like 300 or 400 dollars And really get these away from school kids and anyone who really needs them who wants to just purchase one um So we we ban them and they get very upset like really upset And uh, they'll call our staff names. Uh, there's been all sorts of like threats and everything So one of the things they do is they they open up a better business bureau complaint And they say it's not fair. I should be able to buy these cops Yeah, I should be able to buy as many raspberry pies. I want to sell them on ebay for 500 dollars Because that's what I want to do and I don't like that after I called, uh, you know Kelly a name at eight. I got banned Um, because we try to work with people and say, hey, you know, you're you're you know, you're up here We need to Kelly the clown, by the way, yeah, that's worse than that. Yeah, so or like any of our team or me or like They'll leave a nasty voicemail on our on our phone. Um, so what happens is each time, um, There's a complaint. We're not taking any form of money from the person The better business bureau is like, hey, you got this complaint You probably don't need to do anything, but here's what is so we answer every single one of them So eventually after you answer enough of these, they're just like, hey, you do a really good job with with answering anything that comes up We don't see any any issues that, uh, in fact, you're handling some, you know Supply chain issues pretty well, um, then they can you get entered to be accredited According to their system, you just have to fill up things through your near business and all that stuff So now we get to put this this thing on our site and we can say we're accredited and we'll still handle this stuff But it's funny. This is a little bit again, we had a maker business segment that we would do once in a while It's a little bit of a judo move because the intention for these folks were to damage our business and leave like nasty reviews and and be mean Um, but it turns out this is actually something in our favor because it just showed that we take care of all these things In a fair way and more people got raspberry pies the people that were um trying to resell these for hundreds of dollars and and Or use bots and stuff like that. Um, they're not getting them a little upset, but Here it is. So anyways Someone said in the chat the trolls helped us get, you know, bbb accredited. This is kind of an old school thing It's like when you walk in the stores and you see like the stickers like, okay, you know, they're they're legit Um, so that's our story. And so, uh, thanks everyone for doing two factor authentication And I guess thanks to the meanies. Yeah. Yeah, all right By the way, you know, if you complain to the bbb, it doesn't make up for your behavior. Yeah All right, so we have a bunch of live shows that we do every single week Um, we just finished up the show until yes, there's there's favorites, uh, that we we pick Um, there are a lot of favorites. Yeah, but there's some that shine. Yeah, so check out the staff projects, um, really neat cat Keyboard that jp was doing feel beef found this really awesome amazing retro 80s boombox cassette player thing Pedro has the start of a project for, um, there's a tron ride that's opening up This right near disney, so you'll probably see, um Some footage from the actual ride and then also this memory disk Data disk thing and then, um, one of the projects there was a really neat, um costume Yeah, it was like a cosplay Pursuit head but had these leds and it was really eight So that was from flying things and a beautiful build and then mouse showed up with some really neat synth stuff So, um, all of them are favorites, um, but this was a really neat musical cat night if that's your thing Oh, and Liz showed up with the, uh, octo Octo print it's just this week's uh three. Yeah, we're really I feel like, um, you know People are starting to do stuff again people building projects you can get parts. Yeah, it's like the the the it's not that just the shortage but that the Um, culture of likes shortages. It's like, uh, I don't want to use this thing because what if I can't get another one? Um, now it's kind of nice people are starting to feel free to people are peeling off the screens of their The pay the plastic off the lcds because they can get new ones And more of them. Okay on a sunday. We do from the desk of lady aida. We do this in two parts So part one. What did you show off this week? Okay this week? I finally finished and ordered pcbs for the aida logger I got you know, it's just getting the it's like that last 10 takes 90 percent of the time I spent like a whole day just tweaking silk screen and the manufacturer ability Um, I'm going to make a tester for and everything and then I also made a little bit of progress on Um, building a minimum viable player for the bv einstein player Um, I don't know if you're going to show the other video. Yeah, we have the uh, great search And then you're looking for a part and then we're going to talk about the um My little hacker series, but you also showed folks where they can get the parts for some of the Yes, so the connector that I used on there is the pico blade And um, I thought really handy to show people first off you can get the connectors which are much slimmer than jstph And a lot higher current than jstsh the blade Is what does the job lets you get like an amp out of these connectors, which makes them um, perfect for speakers Also batteries. They're good for batteries as well And that has been for like I mean you can use them for data, but I I use jstsh for data and then again These pico blades for uh power and speaker and you can also get uh cable assemblies from digikis. Well, don't forget that So don't you know be if you have to cramp cramp, but if you don't have to be cramping don't cramp all right, and then uh, we have sort of a New series of videos that we're doing um it's uh my little hacker and it's when we take apart our kids toys and um Change them and make them better and and put all the things Into them or take things out that parents say boy, I wish I could change the volume I wish I could change the songs because they're really repetitive. So, um, you have more progress that uh that you made on the On the project. This is the baby Einstein Tickle on tunes. What did you do this week? So this week, um, well first off, you know I was like laying at the board and I kind of picked all the parts that I realized I should probably verify that they work um before I start laying at the board so I grabbed a cutie pie esp32 s2 and I made a i2 s amplifier bff so I can I sound show in the back And we loaded up uh some wade files, um, including you got somebody who recorded the original audio And then we put that back on so could like play it and we're using the speaker And um, I realized that you can't run off of the two AA batteries So I needed a boost converter. So I got that um installed on there as well But it sounds really good nice and loud and then I loaded up some circuit python code because I wanted this All run on circuit python so people could hack and mod it Um, and we use the audio mixer to change the volume. So that's really handy so you can dynamically Change the volume and through i2 s it sounds really good. Um the speaker an amplifier sound Kids toy that plays nine inch nail songs. That's right. Um, like pretty soon too pretty soon And um, and the next thing I'm going to test is whether it can stream Audio off of a micro sd card so that those micro sd bfs. I'm gonna put that on Um, verify that works and then I'm going to go back to laying out that pcb Every single tuesday we do jpeas product pick of the week where we broadcast live from the product pages of adafruit The discounts are automatically applied Here is this week's highlight oops It is the 16 by 9 charlie plex pwm led driver board And the 16 by 9 led Boards themselves that you can pick one of to pair up nicely with your board these allow you to Easily now with stemma qt connect up to your micro controller and send Very easy pixel commands and brightness commands to decide which of these kind of pixels you're lighting up These are single color leds as well as their brightness on an individual level So you can do some really nice gradient effects here. You can see I have just a little uh pretty simple I'll show you the code in a second pretty simple code that is sending some A little heart pattern and as it builds that pattern, it's doing some pwm brightness things So you can see it kind of fade vertically and then i'm wiping across horizontally again with altering that Brightness level as I go. This is through a little bit of diffusion prilic It is the charlie plex 16 by 9 pwm led driver board with stemma qt All right and tune in tomorrow thursday 4 p.m. Eastern time for gp's workshop He's shown off some cap pianoing and more and then deep dive with tim on fridays at 5 p.m. Eastern tpm pacific where you can learn about all the innards of circuit python and more These are really this is a really good series Especially if you want to see kind of step by step of working through a lot of the code and libraries that we put into circuit python Letters we can letters we can tweet email Oh, right mailbag this week. Uh, we've got uh, you know, it's always nice to see a nice a nice tweet You can use twitter for nice things. Um, this was from a teacher Fourth and fifth graders are making magic wands with adafruit circuit playgrounds the midst of computer mix of computer science art And create a fun. Thanks to the amazing. Um, and that's a teacher Robin for making this happen and here's some kiddos computer science And art and electronics. It's so great to see kids back in school Yeah, like this and doing stuff together and like these kinds of things I know that people are trying to do some of the stuff remote, but it's really hard You need to really get stuff debug with people and and people will look to your screen So, uh for this is the first Classroom photo. I think we've done in like a long time. It's been a while and you know, they had to make sure It was a kind of take photo of the kids and stuff. So anyways, uh, thanks for getting the word out of this a lot of classrooms Use, uh, circuit playground. Uh, we built it, uh, after we met with some new york city Teachers and we wanted to make something low cost work with crow books showed up as a usb drive You can use python because you might make code you can do or do we don't you name it it can do it and, uh It's getting out there and the magic wand project is pretty good to start off with Like a make a make a python on hardware time Okay So, uh, this week, let's go right to the newsletter Um version 150 has been released of the official c++ raspberry by pico software development kit. Yes. Um, this is Bluetooth related. So why is this a big deal because People want to know your opinion about this and that's right. Well, the pico w which is an rp2040 chip that comes with this Cypress like 4349 chip or something part number And that module, uh, can do Um wi-fi and we've added wi-fi support to circuit python. There's wi-fi now In the sdk and arduino micro python circuit python, which is great And uh, people are like, hey, this chip can also do bluetooth classic and bluetooth more energy and they're like, yeah Yeah, it's coming. It's coming. So, um, so the uh raspberry pi team Finally picked the stack and implemented a c++ sdk low level support for the chip They're using a stack that is not open software But they do have a license so much like wi-fi it's licensed as long as you're using it with an rp2040 chip So, um, although I don't count me on that for the bluetooth I know for wi-fi it is bluetooth. I I don't know if they released an official license yet Um, and I saw there's a pull request for micro python as well And then I saw Uh, pin maroni did a little demo where it acts as an a2dp endpoint, which is actually interesting because it's bluetooth classic Not bluetooth energy. So, um, we have to dig in to see, you know, what is the support Uh, when is it going to come to circuit python? I really don't know. Um, This is really really new we have to investigate it and the other thing is we already have bluetooth support And we would want to have it be Um, like cross compatible. So like all the nordic stuff that you would do I want to make sure that as much as possible you could do the same things, but we're also pretty much going to be Not stacked, but we'll have to use the, um, stack that they've used To make it work. Um, because porting our own stack, I think is is going to be a ton of work So, you know, we don't even know what the scope of the work is yet But it looks like it's coming to micro python soon, which is great. We love supporting micro python Um, and I hope to often have it come to python and someone mentioned this in the chat And that was a surprising thing. So it's it can do bluetooth classic a2dp is classic not, um, I mean unless I misunderstood the demo Um, I I don't I believe that it's it's using. Yeah, so it's classic Yeah, so we're gonna double check this and look at it because that's kind of cool if it's true Yes, hid classic is, um, is, uh Is more common for like keyboards. So I think that could be very powerful and also h Classic bluetooth tends to use a standard Uh transport, um, call the hci. Well, we'll see. I don't know yet. We haven't even look again. This is like day's old not even hours um and then, uh Before I go to the the project I wanted you to talk about Um, a lot of things have been going on in the world of open source python circuit python micro python But wanted to call attention to kicad 7o releases out. There's some neat stuff that you can do with fonts now I said that yeah, this is separate. This is the unit code converter, which I found. Yeah, which is cool And I think it's hilarious. Um, and then, uh, check out the rest of the newsletter because there's there's too much to go over in our Ask engineer show which we're doing right now each week But it's chock full of everything answering a fantastic job with it. Uh, Liz's interviewed. Um, there's talks from some Events with python on hardware There's some really neat python resources, whether you're doing desktop python or web python or embedded python But the project of the week out of the newsletter that you found that you were looking at is this a really neat Computer, it's a complete computer running micro python. Yeah, this is from brian, uh wetman who's Awesome, and I don't know if you remember we met him. He's in new york, and he's done a lot of cool audio stuff He sold a company to Spotify that does um audio classifications And he's he's always been doing like really cool, um hardware stuff and audio stuff I think we met him at um dorkbot, which I don't even know if it's dorkbot I think dorkbot is a mailing list. I don't know if it's a physical event. I don't think it's a physical event People should bring it back. dorkbots were really cool. Yeah, um, and uh, so he built this computer based on the esp32 s3 I think it's an eight megabyte flash or 16 megabyte flash eight megabytes ps ram So it's like a maxed out module um And the s3 has this ability to drive a ttl display so you don't get a lot of Colors you think you get a 16 bit color maybe eight bit color 12 bit color Um, but it's good enough for this and I like that He just sort of made it into like an all-in-one computer using the usb um host capability of teeny usb to have it connected to a keyboard Like you know from battery and it's just like it's an adorable little you know kind of Commodore 64 slash z80 slash Action-free. Yeah, it's just like it's like an all-in-one little mini computer And I just think um, he did a really cute job with it. So check it out Uh, the files are all public And posted and it has a lot of audio interfaces because of course brand women loves audio stuff So goodbye thon is delivered every single week to your inbox. We do not spam We do not harvest your email You have to go to a completely separate site because we want to have nothing to do with your aiderford store account Go to aideforddaily.com And you can get this delivered or you can read on the web totally cool either way up to you All right, we're an open source hardware company Speaking of all this open source stuff. Lady aida um To prove it, uh, we post up code We post up uh files. We post up tutorials We post up everything you need to do all the stuff that you want to do. What's on the big board this week? Okay, well, we got a bunch of new product guides. Okay, so they only rocket lamps the octoprote controller monitor I think is this week so Um Liz and no, I yeah, they did a video. Um, it's just a great demo for the new reverse mount tft feather Because there's got these buttons And a display so you can use a lot of projects. I think people can make without Any soldering at all. Um, and this is an nqtt Basically, it sends empty team messages to opto print to Start stop projects get status turn on the preheat plate, etc So, uh, a lot of this documented uses aida fruit IO as a Ripper a lot. This is very comprehensive. This is our learning system So you can make and remake all of these things. Okay. What else next up? piezo buzzer with whipper snapper whipper snappers are no-code iot platform If you want to make tones you can use a piezo buzzer it's Basically pwm output support where you can change the frequency. It's uh, you know 50 percent duty cycle So here's how to do that We've got an updated guide for the esp32 s3 feather. It's updated because um, they now The chip that I was using for battery monitoring the lc709203 has been discontinued And uh, I've swapped it out with the max 17 048. It works a lot better Um, we've got uh from trevor a pie leap esp32 s2 tft boxing gloves. So trevor likes to box Yeah, uh, yes, I asked him to make a video and uh, he's also the ios developer So it's like if you if you're like, oh man, I hate ios development. I got to like punch some stuff to get my aggression out um, but you also want to keep track of Like how hard you're punching so using accelerometer to track The strength of your punches and then sending that data over to aida fruit io over wi-fi this is like all in one project that again uses a Feather tft, which is great for debugging your setup and also a wqt port connects to accelerometer So again, no soldering required. Uh, it's very plug-and-play Um, and check out pie leap, which is the app that you worked on to Do drag and drop. Sorry to do wireless reprogramming of warts. Yeah, I've also got a couple updated guides I think these all got whipper snapper updates Has up 32 the funhouse and the soil sensor We have a new guide for the reverse tft feather Um, thanks to catney for writing this, um And then uh, liz did a project guide with this as well. So a good pair you can use this with arduino or with circuit python Um, it's got buttons leds. It's perfect for reverse mounting and comes with my favorite esp 32 s2 module with Flash and two megabytes of ps ram, which is sweet No, i'm paid to release a stand for this board Uh, so goes together with liz's project. You see there's a slot in the back So you can plug in your stem and t connectors your sensors and then finally, uh, micro sd bff guide This little board allows you to add a Micro sd socket to your cutie pie or shower boards Using the spi port and then one cs pin good for data logging a little like miniature data logger Or if you want to do, um, like audio playback or store images or videos or whatever that you want to display on a tft Um, this micro sd bff is in the bag. All right, and don't forget to check out learn data fruit dot com You can look at all the guides and more Learn system Okay, let's uh play a couple videos. I'm going to do the Octa print and then the boxing video and then we're going to roll right into some factory footage You can use circuit python to control and monitor your octa print server Octa print is an open source project that allows you to remotely monitor your 3d printer This build uses mqtt to communicate with octa print via two plugins of ate a fruit io acting as the broker The circuit python code is running on a reverse tft esp 32 s2 feather housed in an octopus themed enclosure to honor octa print's mascot The board screen shows the current status of your printer according to octa print If a print is running a progress bar will be displayed denoting your print's progress The display also updates to let you know when a print has finished There are three buttons that can send rest api commands to octa print if the printer is idle you can have the hot end preheat cool down Or you can reboot octa print while you're printing you can pause resume or cancel a print See how you can build your own octa print controller by checking out the learn guide at learn dot ate a fruit dot com That's the main york city factory footage We're gonna do some 3d print in No, i'm pager has 3d printed out bunch of stuff We got a very cool project and then a speed up as usual. So i'm gonna just let them take it away This is the new feather with a reverse tft It's an all-in-one dev board with a built-in display powered by the esp 32 wi-fi module With this feather you can choose your flavor of wi-fi module The esp 32 s2 or s3 are expressive chips that are great for making low power friendly projects Both types come with native usb. So it's perfect for use with circuit python or arduino The s2 has a single core and wi-fi while the s3 has dual core processors with wi-fi and bluetooth le This feather features three buttons four megabytes of flash Stem aqt new pixel led battery monitor and charging for making portable iot projects With so much built-in you can get your projects going without any soldering. The color tft is an IPS display featuring 240 by 135 pixels so you get bright colors at any angle You can 3d printer stand to prop it up on your desk for making wi-fi projects with a mini display The feather is secured to the stand with hardware and allows access to the user buttons and various ports This octoprint project uses adafruit.io and mqtt to send or receive commands for controlling your 3d printer running the octoprint software To build this project and get more info on the feather check out the guides by heading over to learn.adafruit.com We hope this inspires you to check out the feather esp 32 with reverse tft to make your own iot projects All right before we get over to new projects. Don't forget the code is 18 tiniest and You get a bunch of free stuff and you add it to your car. You know you want to Don't forget to save buck two on the way out lady. It is time. Are you ready? Yeah Extended version. Okay, uh first up. Okay, we've got an update to the 2.13 Tri-color ink display breakouts actually one of our first ink breakouts that we made it's very popular Uh size and style because I like the red highlighting they've got So this updated version is the same pinout same size same shape same code everything except on the back We now have a iSpy connector at the top So that means that if you would like to connect to this board without having all those wire soldered or header There's now a solder free way to do it with the flex connector. We've been adding iSpy connectors to all of our displays We got through basically all the tfts and now we're going to be doing the e inks Next up next up. We've got rfm 69 modules in 900 megahertz and and you can see on the back here Different frequencies and this one is the 433. It's got the red dot So these modules are not laura. They are like ism band packet radios That said if you don't need laura, um, they're these are a lot cheaper because you're not paying the laura licensing fee The complexity they're great for if you want to send messages between Different devices. There's an spi protocol. There's library code For arduino for micro python for circuit python. Again, the rfm series is super popular. I can do fsk ask People also use these to listen in. You don't have to use them for transmission They're great for listening because they're also transceivers. That said whenever people are like, oh, I want to have You know a board that sends his data over here send data to another board over there I don't want to use wi-fi or bluetooth. I just want like the packets to be sent This has a crc management for you. So it does like, you know, data correction and checking for you Packetization and dressing all that good stuff So the rfm 69 series comes in two frequency sets 900 megahertz 433 I use whatever is the ism band in your area stop Next up we've got two lenses for the uh raspberry pi 12 megapixel camera that we put in the shop a couple weeks ago So that's the camera at the bottom and those are the lenses and there's two lenses. One is the telephoto lens And one is the wide angle lens. So there's two. This is uh, I think that's the wide angle Actually, I don't know which one's wide angle and one is the telephoto And the narrow one is a telephoto in the yeah, this one. That's a telephoto. Yeah And the other one is wide The wide is like 120 degree then the telephoto is I think, uh, 18 degrees very narrow But it's great for far distances. So one is basically for close-up cats and one is for far away cats depending on what your photograph is So, I mean that pretty much describes it. That's pretty much it. Well, they're but you know They're both used for like, you know, you want to take photos of something far away Uh, let me take this over here A little closer And I can show The lens Um, so the lens is screw-outs. This is the wide and you can see it's got that lens And it's going to distort stuff on the outer edges, right? But that's on purpose. It's a wide angle And then you focus it by, uh, screwing in and out and then, uh, don't forget Um This is, uh, a raw like you kind of barely see the See if I can I want to show this sensor. So there's a sensor inside. So you have to have the lens. This doesn't work without, um, The lens on top. Otherwise the sensor can get damaged Oh, yeah, that worked. So you can see there's the was a nice 12 megapixel Ooh, there you go. The sensor inside and then yeah, again Whoa, too close Too many pixels You can back it up Um, so this is the wide angle and then, um, as we mentioned, there's also the Um Lens Uh, narrower but the same threading and again, you know, remove the protector Put it on and then you can focus in and out by screwing it on screwing it That's why there's so many threads. So two lenses, um, they don't come with the camera and the camera doesn't come with the lenses So, you know, it's it's an added expense, but you know, it really takes the camera up a notch Uh, makes it a lot more usable for, um For this can be a wide angle good for like, uh, security camera type footage Tell a photo when you want to take photos of far away birds or cats All righty next up the star of the show besides you lady our team Customers our community is these ad dinas. Yay, 80 dinas. We have two more breakouts For the 80 tiny series. We already did the 80 tiny 817 and this is the 816 and we also have the 1616 Which looks very similar except one says 816 on the back in the front and one says 1616 um, these are a much smaller version of, um, the 80 tiny, uh teeny mega core basically they're very powerful chips Um, but they're very small and they're very simple, which is what I like about them and we use them You know for this I basically design these for my development because Um, I'm making new seesaw breakout boards now that chips are finally available again And it turns out that in some cases I want a much smaller chip than the Seven series. I want the six series, which is a tinier qfn chip These ones three volts or five volts they run with up to 20 megahertz internal clock They're very easy to program because they use updi Which means you can use a one resistor Wire and a usb serial converter of any kind any kind of cable or breakout just connect the rxtx pins through the resistor And then wire to the updi pin to program them um, we use the spence condi um, 80 tiny teeny mega core that uh for arduino to do development for it This just is our little development board breaks out all the pins. Uh, you get i-squared c Um, like I said one is 816 one is 1616 the 816 has um, you know a bunch of adc It even has an 8 bit DAC lots of pwms lots of gpios and um has uh eight megabytes sorry eight kilobytes of flash and I think 512 bytes of ram or 256 bytes of ram and the 1616 I remember has 16 kilobytes of flash and it has a whopping two kilobytes of s ram So if there's some cases where you want to 1616, um, you know, it depends on what is available in the market as well like right now Uh, so I can get some of the one chip and some of the other So there's cases where you want one of the other and the the pricing and the availability may vary Which is why I'm carrying both Um, and I'm using again is seesaw development. It comes with seesaw code on it So you can use it in the gpo expander. I've got a demo here Like I just kind of put one together really fast the 1616 has a lot of s ram which means um, what I've got here is a uh a Metro mini so at mega 328 and it's connected through i-squared c So this is power the power pins down Because we're just power. This is that a t tiny board and um, I have the output of Whoa, it's close. The uh, zero pin is connected to the neopixel data and then I have power coming from usb And this is getting i-squared c commands telling it to set the neopixels that it didn't write So basically it's acting in i-squared c to neopixel buffer and then you can see here It's driving these neopixels and it's doing a little rainbow swirl very slowly because it's it's going over i-squared c So remember it's not going to be very fast, but you know, you want to drive Um 30 neopixels is actually just fine Uh, so this one is the 1616 and I just put coded to make it uh, it has 2k of s ram instead of either the 256 or the 512 bytes That um the 816 has and so you can actually you know drive This is a you know 300 pixels or something or 200 pixels It can buffer the memory for that whereas the smaller one can't But um, we're also going to be doing a some, you know, um projects I do need a little bit more ram storage and so that's why I've got the 1616 The 816 will do the job for most seesaw projects where you just want, you know, i-squared c to um G pao or adc and then of course if you want you can always reprogram it with a updi pin From within arduino by using that usb serial converter With a one resistor and then you can use that as a controller for sensing other i-squared c devices It doesn't have to be like one way it can be the other it's acting as a i-squared c peripheral But it can act as an i-squared c controller. I mean it's a 16 k 8 Bit micro controller running at 20 megahertz. You can do quite a few projects with it Doesn't have usb, but we do stick on a regulator So you can run it at three volts by default it runs at whatever you power it with One thing I get I like about it is it wants three to five volts just fine There's brown detects Internal oscillator can run at multiple different frequencies and there's great arduino support for it And that's the new pilot just new products. Um, the the lighting turned out really pretty on that. It's quite nice Yeah, it's very good. All right, and that is new products Oh, kidoki, don't forget whatever you saw there. It's in stock 18 tiniest We're gonna do some top secret. I loaded up a bunch of questions people have good questions So I you don't have to post them again. I got some But feel free to post any new ones up in discord while we're doing top secret. Let's go to the vault Well, kidoki top secret this week, uh, he sent this over to me to post up and we did what is this? This is an ancient design. This is a canned feather wing that designed like easily The brine designed it or I designed it. I remember we both worked on this project many years ago Um, I was about to release it and then uh chip shortage basically like killed availability for the mcp 2515 Which is what's being used here in this chip isn't so many products. It's not surprising and basically got bought out instantly So with the part available again, um, I'm able to um build this board so it's got a it's got a 3 to 5 volt mini boost converter just a switch cap to give you that logic level The crystal and magic capacitors reset button mcp 2515 And over here, this is the mcp 2551 which sounds very similar, but this is the can transceiver phi element and this is the spi to can converter and then all the way to the left is an edge mount de9 and then over Here is a terminal block option. So, you know, you add it onto your feather and over spi You can use it to converse with uh can boards because there's some chips that had built-in can um fies and and uh Uh peripherals, but you have to usually spend a little bit more and sometimes you're like, look I I wanted to use one of my rp 2040 or I want to use my um You know nrf 52 at 40 which I don't believe has can on it I think the green screen is good so you can show different parts. I kind of like that. Yeah, it's a go Yeah, I think we're gonna keep we're gonna keep doing this because we're like we're able to set up a screen here Okay, cool. And then uh, I got a top secret. Uh, we're gonna Launch relaunch. I don't know uh different chip tunes. Uh, the idea behind chip tunes is we have a microscope that can show uh, really close-ups of electronic parts and then uh, we get cool bands that we know because There's Blippi Blippi chip tune music and we just play music and we look at the chips really close-up We had started to do this a long time ago Um, but then you know life happens chip shortages happen and more and uh, this is when we did this is a close-up of I think it was uh circuit playground When we first launched circuit playground and uh, what we did is we should uh all the different ways you can zoom in and zoom out With uh at the state of the art at the time How close you could get with uh, kind of like live webcams and stuff like that things have progressed quite a bit That's not so bad. I kind of see yeah, you just have to see parts You know, well, like we have again this also this microscope has been in storage for quite a bit But we cleaned up and we organized a lot of this area. Um, you know, if we can magnify even more maybe but it's a nice, uh confocal microscope with uh Tri-head so you can have a if you my output which is why you can get like really good looking Images, it's not one of those like a little mini desktop. Yeah, this is a nice microphone. Yeah, and as someone mentioned here, um Chiptune is like journey into the microcosmos people electronic. Yeah, it is Um, it is like that and I think this is what you know, one of the things for us too It's important to do a lot of these things live because it's special Um, there's a billion channels. You can watch anything anytime, but live is special We all get together and uh, of course you can watch it after but I think that's one of the neat things About uh, some of the shows that we do is you can participate and meet people and talk to people and there's some interactive portions So anyways, um, we're gonna try to do it top secret, but um All right, we're gonna roll right into questions. Okay, so the first question. Um, this is when we were showing some of the, um Earlier the boards earlier. Um, I saw the rossi saw are there advantages for each chip or is it to make it so there are many choices in the event of One or more going into stock. It's it's basically it's a trade-off of price and availability. Um, you know, the 1616 is the one that has more significantly more ram Um, but you know, there are pricing although right now the pricing is a little bit weird. Um, because the market's still kind of Getting out of shortage mode Um, but I basically don't want I want to make sure that all the code that I write for these c subboards runs on any of these chips So I'm not stuck again with like uh, oh if I can't get this one chip like, you know, 20 products go out of stock. Um, that was really rough So, you know Being able to swap between them Would be valuable. Yeah You know, it was tough the last few years going through the chip shortage, but I think one of the things is Um, you know, you get through it, but then you're like, how can I make sure that doesn't happen again? So even though we probably over compensated for like having a completely diverse Supply chain like okay, we were never going to get stuck with just waiting for this one chip again Um, I think long term will be better because that means we can probably get better pricing sometimes Um, we don't have to wait when there's like some ecological or political disaster or you know, balloons are getting shot down And we're not friends with some countries for some reasons some weeks. So anyways, um I think it'll be better long term. Um, there is mm basic on the raspberry by pico's python next I don't know about mnn basic Okay, with all of the qt pie bfs being created. Will there be female headers? Is there a supplier that can produce them? Um, I would just use the Um, right now I'd say use the itsy bitsy header set. I will eventually get a qt pie header sets if I haven't gotten around to it yet Okay But yes, definitely custom made what are dimensions what are the dimensions of the at tiny break up boards? Um It's like an inch and a half by Point six maybe I don't know it's um the at tiny eight one eight sixteen sixteen It's a little it's it's basically the same Dimensions as the eight one six. I think it's the same dimensions. It says to your pins. Okay Uh, next up, I'm looking to create I'm looking into creating boards for kits for the company I work for and I want to make it open source They allow what is involved creating open source licensing for products and how to way separate the open source nature But with the protective part the gait of fruit has the feather Name eight different logos and characters are all those open source too. No In fact, that's the cool part about doing open source is you can do open source and give away everything But protect the thing like we just don't want someone to call someone a deferred. So a deferred's a registered trademark So take our board Make the board just don't put our logo and our name on it. Um, there's special instances and I think I have someone an email Um, there's like the feather the feather logo and there's a certain trademark So we have where we just say oh you're doing it for open source. Here you go. Use it professional forever Um with permission and all that but what you want to make sure and this is what happens with a lot of open sources There's the open source project and you want people to share the code put it under a license We use like MIT license a lot But the name of it is the important thing because you don't want to have confusion people could fork it They could do things, but you don't want them to call it the same thing logos. That's something you can Protect, uh, there's the code that uses a license. It's copyright and then trademark happens to be, um, You know things like logos and such. Um, if you come on desk of lady eight on sundays After time whenever that is you can ask any of these questions. We don't do legal advice, of course, but Um, you know schematics we've done creative commons Um, but for the most part, you know, we can answer these things. I think also ashua has a great fact Check out the ashua.org fact. Yeah But that's the cool thing is like especially I I'm kind of surprised more companies don't do Uh open source because I think they they think that it's like, oh like you're giving away everything You're giving away the important things like the the code the in our case hardware and schematics But you're not saying you get to be eight of fruit, you know, you're you're actually doing something. I think that makes the most sense Um, which is you know, you can always reverse engineer hardware. You can always look at it So why not just have a community and people contributing code and doing all the good things around that? But then still having your name is your name. Um Next question. What is the name of the screen that is used on the round rec tft display that is in the store Check the datasheet which we've posted in the tutorial for that display I don't remember the part number for it. Yeah, okay Yeah, and then a couple of people said You know Who will own the license in your organization? So that's one thing that's important Especially for open source project make sure that the person or the entity is like, oh, we're we're making this license Here's who's putting the license out there. Make sure there's there's some type of Organization behind it. Sometimes in open source projects No one gets around to registering the trademark. You have to eventually figure out someone to do that You could still say here is who owns it and here's the licensing But you have to like determine someone has someone has to take charge at some point. Um, next up There was a question about uh, can circuit What's the best way to parse small bits of xml and circuit python requests? I think we've done xml. I think there's an xml parser that we have in circuit python Yeah, um to search for the learning system for xml and circuit python. I'm positive that we That it's not on the smaller boards, but on the larger, you know, the esp32 s x's and and friends um I believe there's a library for parsing xml and then uh, or there's a user library to park suggested if you Conferred it to jay said there's regular expressions. I'm gonna help with that. Well jason. We have a jason parser So you don't have to I don't don't parse jason by hand and don't forget you can't really parse xml by hand either But I believe that there's a basic xml tokenizer. Okay, uh question. Is it possible for a company to make the same Board uh make a board with the same wi-fi modules of pico w. Have you thought of doing that? um We've asked raspberry pi to release a module based on that chip because they get pricing that we can't compete with Like basically if you look at what the chip costs, it costs more than just getting a pico w, right? So it doesn't make sense Um first to buy the raw chip. Uh, so we've asked them to do the module but don't forget um the module at this time uses wi-fi and bluetooth libraries that are licensed only to be used with rp20 40 so It's like if you're using it you have to use with rp20 40 For you'd be able to use that firmware Without paying a license fee and then uh, someone has a cool iSpy board. They said hey, I put the logo there. Is it okay? Yep? Yep, go for it. Um, let's see Uh Best use of a desktop microscope is by a tweet streamer called open set. I'm going to check that out. Okay, uh Here's a pro tip when dimensions aren't shown on board. Uh, you can count the header pins along the edge there Uh Okay, uh It's a little bit more of a follow-up the person's going to fall They're going to champion open source within their company because it could all still profit from the hardware series But the community can benefit from resources they generate and benefit from the community input as well So here's the thing again, if you if it's open source hardware Um, most people aren't going to make the hardware like most people aren't going to be an aide for you to make the hardware We sell the hardware, but then when you release the code instead of maybe in I'm not going to say waste but maybe else instead of wasting all your money on Developer relations and marketing trying to convince people to use your thing and it being closed source You make it open source and you build a community around it and people want to participate and they want to do things I mean, I think there's a combination of both. You still probably want to do Uh, some type of of marketing in some cases, um, but good documentation and open source code is good advertising if you look at it that way, um Let's see I Think that is almost It I'm gonna make sure that I hit all the other chats Um Post some orders. I said, thank you for getting it out And I think that is everything Okay, that's our show. Thank you so much Everybody that was asking engineer this week. We very much appreciate the time that you spent with us Special thanks to zay who's behind the scenes and the ate a fruit slap channel helping customers and special Thanks to our community our customers. Um, and I guess everybody making this thing work speaking of open source businesses You know, we're doing something a little different out there. No loans no venture capital Woman owned electronic company in new york city doing open source hardware giving away all the designs Ah, I can't believe you're doing that. Um, but uh, turns out that's a really good way to Build a community and get hardware out there to the folks who want to build and learn and share So we will see everybody next week. Thanks, everybody Here is your moment of zener keep me out