 Live from New York. It's ask an engineer. Hey everybody and welcome to ask an engineer. It's me lady Ada engineer in Doing the show right now. I'm engineer on staff We're broadcasting live from the eight foot factory in downtown Manhattan So we do all of our kiting and manufacturing and shipping and testing and coding and videoing and What we're broadcasting from right now with me is mr. Lady Ada on camera control also puts together the show Every Wednesday morning spent all day on it. So why don't you tell them what's on tonight's show? on tonight's show the code is Denrail 10 off a native restart all the way up to probably midnight or what I remember to turn the code off Use that code anything in stock 10 off. We have a bunch of live shows We're going to talk about that including a little bit about our show and tell Time travel around the world and makers hackers artists engineers news and much stuff that's going on Help wanted a whole bunch of jobs on the eight of fruit jobs for jobs at eight of fruit dot com You can post your skills or if you're a company looking for talent, whichever company is right now You can post your job there Main york city factory footage. We do that here. It's uh scenes Behind the scenes at eight of fruit. We got some 3d printing videos and more one of them Is uh pretty scary because it's like teeth stuff. No. Yes I had mpi brought to you by digikey and eight of fruit. We're going to do some new products We're going to answer your questions and we do that over on discord eight of fruit dot ot Slash discord where you can join all 31 thousand of us 24 7365 it's a really great safe cool place That will uh never hurt your feelings all that and more on Ask an engineer Okay, so um, let me do a little bit of an update because uh, I think this will be one of the last ones too We have been uh trying to get rid of coveted for a while. Yeah society And uh, you know some stops and starts but I am pleased to report that the eight of fruit team Is 100 vaccinated. We didn't need to do any mandates. There was nobody who's wanted to do a test out There was no request for exemptions in any way We are done and we're celebrating um, if you want to see all the things that we do go to eight of fruit dot com slash open safely We have uh a brief overview including all the stuff we're doing with the heroes act and then we have a pdf Back in the day, uh, some companies had asked us Hey like what are your safety protocols so I put a document together Yeah, I thought we just updated that as well. So Um, we're safe if you work at a company or if you run a company and you want to see what eight of fruit does, uh in Traditional eight of fruit style. We uh, we're very transparent and open with everything and if you're an employee here think about, um, how, uh Safe, uh, you're you are and the fact that we put that out there. Um The idea that we're showing our protocols I had talked to other business owners like we'll never show that because we're worried about like maybe we're not doing everything right And I'm like, no, you should do the opposite You should put it out there and work with your team and then you could be really proud of how you're doing stuff so well together Um, we just hired a bunch of people at eight of fruit and people were leaving jobs to come work at eight of fruit Because they said I wasn't safe at my previous job So I think it's a good idea and anyways eight of fruit dot com slash open safely and uh, you know Thanks, eight of bot. Um, I'm I'm cautiously optimistic, but I think this uh, this october the thing that we're in right now is uh, The big next chapter for a lot of us getting to the things that We want to do and the things we love and hopefully we'll be able to see a lot of people in person over the next uh Forever, okay. So that's the uh, that's the covet related stuff, which I'm I'm done. I'm tired of doing that So we do free stuff in addition to uh having that code lady to what are the things they get when they buy Right now the freebies we have are nine nine dollars or more. Uh, free promo proto half size breadboard Uh, 149 or more you get a free stemma qt board from a range of 20 different boards that we have Uh, whatever's in stock if you make an account, we'll send you a different one each time Uh, 199 or more you get free ups ground shipping in the continental united states Okay, cool. So we do a bunch of live shows. We just did the show until this week. Um, next week We're also going to do the show until um, so stop by if you want and I would say, uh, there's all of all the projects are good and everything But I would say if you want to see the beginning of Or I guess it's not the beginning if you want to see where scott's at with doing this really neat thing with circuit python on a Raspberry Pi, uh, tune into that portion because you can see I think I mean, it's a very advanced form of blink. Yes But it's running on a on a cortex a8, which is funny. Yeah on sunday We do desk of lady aida new graphics. Yeah, we get new graphics new song. We're doing a bunch of stuff Um, you know, it's time to uh polish up some of the some of the art across our properties and channels and more So we do it in two parts. What did you show this week? Um, I showed that I got autofocus, uh from we're working on the, um, v 5640 which is a camera module that has autofocus capability And then um having done that I redesigned the breakout because it's like I had to change some stuff around to power the Voice coil motor. Um, but that was super fun Yeah, and then we do, uh Where in the world is that part I need that's a song but it's called the great search and we do that with digikey And lady aida and this is uh something we started before the global chip shortage But uh every week you help people find the parts you need. What was the part that you helped people find this week? Yeah, so the camera module that I'm using uh can get quite hot if you run it for a very long time So I thought it would be uh useful Um to find a small heat sink that I could fit on the back of the pcb to help cool it down Um, and I realized I've never shown how to uh spec and source heat sinks off a digikey So I show that I get a little small. I think eight by eight or 10 by 10 millimeter Um heat sink with fins and you can uh glue onto the back and will probably help Keep the camera module nice and cool All right, so come by uh sunday nights. I'm there. We'll do desk of lady aida and you'll see A little glimpse of the future and maybe you'll find that part that uh, is impossible to find right now. Yeah On Tuesdays we do jp's product pick. It is I think the only Show that broadcasts live from a product page. I'll say this I did stumble on amazon the other day And I don't know if I was part of some weird ab testing But they had a live video and they were talking about the thing that you can buy There was a little bit of a disconnect between like I want to buy it and I want to watch this thing But um, you know like they bought twitch, you know, it's it's like this is where the videos did they own the video streaming Back end of the internet. So, um, anyways the way we do it is jp broadcasts from the product page And there is a discount automatically Applied you don't have to do a discount code or anything. So here's this week's take it away jp It is the haptic motor controller board So I've got the drv 2605 l connected over i squared c to my qt pi It's being sent commands to run different wave forms when I press the different buttons. They're my little motor I've actually stuck it with some blue tack onto a piezo pickup so that I can amplify it so you can hear it Different click Check out this one. This one's really cool. This is a ramp down and here's the ramp up There's a triple click And there's just a big buzz all of the different things that you do on your device Be it cap capacitive touch be it real buttons be it some sort of controller like this You can have the user feel them which is really cool. So that's the product pick of the week this week It is the drv 2605 l. It is a haptic motor controller And don't forget on thursdays there's john park's workshop And during john park's workshop there is the circuit python parsec section I got a bunch of stuff in the show tonight. So I'm going to skip playing that video Friday I suggest you check out scott's deep dive because he will literally be Diving deep into a raspberry pi to get circuit python on it. So Watch it is a fun. It's a fun party Learning computer architecture from the outside in and the inside out. Yeah All right time travel We're gonna we're gonna travel through time and space Okay, I think I'm to that. Yeah, I think so So first up We have a new video on our site. Uh, this is from natalie Diana and this is the stem chat Halloween potion making for kids trick-or-treat at home and more And I have a little bit of a speed up if you want to uh, I think I have a speed up. Do I have a speed about this? I don't remember if I do where would it be if I did? No, I don't okay. We'll just pretend it's going fast. I just have I just have this screenshot which is the thumbnail for the video anyways go watch it It's really good, especially if you have young ins and you want to do a halloween project with them Both natalie and diana are excellent educators. So do check it out Next up time travel This one is uh, I've been really busy for like the last 18 months But I'm trying to get back to some stuff that I that I want to do and one of the things that Um, it's been there's been like multiple crises going on and you know the next one coming up Or the one that's currently here is what are we going to do about planet stuff? And uh, la more went to school with uh, sol griffith. He did have toon squid labs got a genius award, uh, and all sorts of stuff. So he has a new book And uh, you can go to rewiring america.org and it's called electrify and it's an optimist playbook for our clean energy future And uh, I'm currently reading it, uh, because I I've been reading like, you know New york state covet regulations and like just dealing with uh, running a business during all this in the last 18 months But this is something I I I want us as aida fruit to show there is an optimistic view of the future But we're going to need people to consider things like electrifying stuff and migrating from certain things like gas-powered water heaters at home to electric ones and you don't have to do it all at once But uh, sol did a really good job of putting this together. I saw the book launch Video that they had and it was great and I think this is one of the things I don't think we're going to solve it with a hashtag or a bunch of carbon credits Which is just like, you know one day it will fix it So I think this is a this is a realistic way to address some of the things It doesn't fix everything it doesn't address everything, but there is there is a path forward And it involves engineering and technology and there is ways to do stuff So here's a little bit of a trailer for the book. It's only 30 seconds. So I thought I'd play it and then we're gonna I'm gonna finish the book. I'm gonna send questions over to saw I'm gonna interview them and then I'm gonna see what things Make sense Uh for us to say like oh if you want to do this type of thing And over the next 20 years Here's some things that we do now at aterford like you have a really good solar tracker We do a lot of neat things aterford io is all about sensor logging A lot of our stuff is low power And uh, you know, we're a new york company our foot print super low We don't take planes or cars or do anything So, you know, we try to do everything we can but there's always more you can do So here's a little bit of a Overview of the book in his new book electrify inventor and engineer sol griffith outlines of revolutionary But realistic path to reversing climate change without drastic lifestyle changes Just by replacing old appliances and cars with electric ones as they retire and upgrading our energy grid We solve almost half of the problem This buys us time to tackle more difficult sectors of the economy and creates millions of jobs in the process We have to start now and it's going to take everyone get your copy of electrify from mit press order now at rewiringamerica.org So anyways, um, I got my copy from like bookshop.org. It's independent Bookseller, but it's also available in all the places you'd expect to go to mit press and Kendall square. Oh, you know what? I did have a little thumbnail. So, uh, let's go So this is the time travel section. I can do anything I want and go back in time anytime I want Green night style. Okay. And so here's just a quick speed up of of the the chat and all these potions No, I know this is this is a goal a potion drinks. Oh, so you can make like a little kid drinks and adult potions with adult get them started early adult alcohol So, uh, next up be useful kids make me a gin and tonic. Yeah. So because our team is feeling pretty good about our, you know, operating safely Vaccinated stuff. Um, we're decorating around here at Adafruit. So, uh, here's lady Aida and Ashley We're decorating different parts of Adafruit. Um, I just wanted to show what we're up to Um, we have here's a little video, um, of our lobby and things are different. This was like hour one Um, Ashley wanted to do this, uh She project manager this like a beast. Yeah. She she already, uh, I think she said, uh I'm halloween 364 I just have to like, you know dress down those other days. Yeah, and so it's a day after you might be like I want to wear pajamas. Yeah, but she really is she's like so we have this golfed out every day So I managed to get one of these big skeletons and uh, we're doing fun stuff with it This is the default skeleton. Don't worry. We're gonna do some cool stuff with it. But uh, yeah, we just set this up and test it out Yeah, all right. So I've got some adabox news So here's the news. There's good news and there's news. The good news is you're probably thinking there's no way Adabox could possibly ever ship because there's a global chip supply Shortage there's a shipping crisis Everything is going wrong And the airports are clogged. Yeah ports are clogged. Yeah, we always are clogged. There's no truckers everywhere. Yeah So the good news is we are shipping adabox Now ish The other news is there's a good chance you're not going to get it by halloween and sorry because everything We really tried we we even actually got everything early months ago and then um All the pallets got stuck for weeks. So right now there's still some remaining things that are making its way so we can ship So you'll see your shipping notification shortly If this is the worst thing that ever happened to you just cancel your adabox subscription Yeah, just email and we'll cancel and you won't we won't ship you on you don't have to worry about it being late Yeah, and then like come back to it next year when like the world is Healed and it's not it's gonna probably be a little weird for a while So um, my just my request is like if this is like Like don't be mean to the staff and like email and be like where is it? I can't believe this you're just like don't do that because I think we all have Look, I I kick it my matcha tea in the morning I like I like a nice matcha and they're like we don't have any and we don't know where to get any So that's the world we're living in now. Yeah We went to yeah, we went to the store and I'll just leave out the store And it's like bear shell and they removed all they removed everything because you could tell some of these big box stores Like they only get stuff via sea freight So anyways, if this is not if that's not going to work out for you just email and cancel it you can start up later But um, there's a chance you might get it, but I in our business We have to say like no like you're you're not going to get it But there's a chance but you will start seeing the shipping stuff that will make its way um, you can look online everything is slow even if we Shipped everything last week. There's a good chance just with delays everywhere It would still not make it. So anyways, we're going to try our best, but that's the news But thank you it for the folks that are patient Really appreciate you Okay, Collins lab we have videos from Colin on Monday's Tuesday Thursday Friday except for this week Collins off this week. So I'm going to show Three of these back to back The last one is the fritzing one which I really liked Yeah, because a lot of people don't know about fritzing. So take it away Colin So you have this five volt microcontroller powered by five volts and speaking five volts only on its digital iopins To communicate safely with a 3.3 volt board like say an i-squared c-based sensor You'll need a translator specifically a logic level shifter This board will convert the voltage levels and make communication safe and possible Because I'm using this for i-squared c communication. I chose the bss 138 level converter It uses nxp's official method for shifting between i-squared c devices with pull-up resistors to boot Just make sure you put the lower voltage signal like 3 volt on the lv side and the higher voltage signal on the hv side This board can also be used for uart serial and very slow spi data. Just not a great pick for neopixels or high speed signals This servo motor has a kind of superpower On top of basic control via the standard 3 pin connector It has an additional wire for reading position of the internal potentiometer Reading the voltage on this wire provides a reference to the servos position Which can be used in code to improve accuracy so that the servo knows where it is But beyond that this lets us use the servo not just as a motor but as a position sensor By reading the servo position at regular intervals and saving those values to memory We can record a sequence of movement And once digitized we can use that sequence of values to then reposition the servo again later Turning the internal potentiometer back to a previous position with each step and effectively recreating the movement Fritzing is open source electronics design software for windows mac and linux with a user friendly parts oriented approach It's free for those willing to build the app from source or download from the github releases Otherwise the pre-built download requests a donation The app is a good start to finish option for anyone looking to get into designing electronics with a low barrier of entry While lacking support for some advanced features common to CAD tools fritzing is easier to get started with Featuring a unique breadboard editor, which by itself can be a great tool for creating educational graphics This view works in concert with the schematic and pcb editing tools as a natural path from circuit to physical pcb's You can even send your design out for fabrication from within the app Okay, help wanted. This is our jobs board at jobs.ajford.com This is free and we We review each one because we don't like posts for good jobs. We don't like sketchy scammy stuff. So This week it's one company that has a ton of stuff. So this is the folks who do light pong it's They were on the chantel. Yes. They were on chantel. So software security engineer qa engineer testing manager gameplay programmer firmware developer But wait, there's more there's more Network programmer back end developer front end developer uxui designer. So check this out Jobs that even for kind of like anything you do. They're probably hiring maybe firmware. Okay. Okay It's time blinga blinga blinga blinga. What's new? Yeah, I'm wearing my circuit python shirt. So I'm you are I'm in style. That is the rule. That's the dress code here. Yes Um, so this week in the newsletter, we got a bunch of stuff going on. So I guess I got a yeah, I got to remind Uh myself and others go to adforddaily.com and just Hit the button that says python of microcontrollers and remember We don't spam. This is not connected to your adford store account We purposely did that so we could prove beyond a shadow of a doubt that we will never do anything like harvest your email Remarket it do anything. So it's there unsubscribe anytime or subscribe because you know, we're not gonna we're not gonna mess with you So this week, uh, there's a bunch of events going on. So the risk five summit is happening This is uh, picon us 2020 the planning is starting. Check out the picon blog. Um, there is a Giant amount of keyboards that are coming out since we do HID stuff with circuit python It seems to be the choice if we're doing a keyboard that has an rp20 40. This is a really cute keyboard. Yeah, this is nice Um, and then I'm glad we added that low-level keypad support. Yes Be it the sequence chart for circuit python 7. Um, there's a hacktoberfest. There's the um, halloween hackfest It is still open. Yeah hardware month. Um, I thought this was neat someone. Oh, some little iot Flower pot uses circuit python A little reminder for scott and jp We interviewed simon monk did a programming pico. There's a chapter on circuit python There's also a bunch of micro python We'll have simon on the show until next week and then there's just an unending amount of stuff And then I thought this was kind of neat. This is uh, you know, it's basically like our feather rp20 40 but these folks have one and I like I like what i'm seeing Uh in the more feathers. Well, it's a feather and you know, now it's all about it. Does it run circuit python? Yes So that was kind of cool. Um, so check out all this stuff and more and then this week I have one video and this is the camera stuff that you're working on. So I'm gonna play that. Okay Lady, what is this? Okay? I've been playing around with lots of camera modules to get camera vision data in circuit python Into like an esp32 s2 and this camera is kind of neat inside it actually has a voice coil So it can do autofocus. I've loaded in the autofocus firmware and you can even see Here's the little camera and I'm powering it from three volts You can see it's like trying to do the autofocus mode So if I put something in front of it, it can actually do macro shots And if I put this away, it'll focus on us. So um, so far so good It's kind of neat. You can even hear a little clicking sound when it does the autofocusing The voice coil actually like literally moves the lens back and forth. This is what happens in your smart cam But now it works in circuit python. So that's great I'm going to write this up and release a driver for this ov 5640 camera with voice coil And that is this week's python on hardware Next up, we're an open source hardware company and to prove it We have a bunch of documentation and code and files and more We put those often on our learning system a difference learning system as 2,561 guides Oh, that's a good number this week on the big board lady. I'm going to start with the uh This one and then I'll and then I'll go to each one after. Yeah, I think I think we did an update Liz updated the firmware Code for the mini led audio visualizer. So the guide's not new but there's new code And then Carter also updated the or accessing a different pcb design files guide He added a section on taking measurements using the built in eagle measurement tool And we wrote a guide on submitting arduino code to the learning systems for guide authors for the most part And I think also catney And philby finished up the eye lights led glasses and driver guide including more examples um jp finished up the guide for adding wireless leds inductive leds to Model to a couple different examples. Yeah, I'm going to so uh lego teamed up with flicker for a contest And uh, I have some lego history that i'm not going to get into um So i'm going to enter these photos into the lego contest because i'm going to put them on our flicker Page and uh if there's voting everyone i'll let you know Yeah, um, so what we did is we put these little leds inside the lego's and we're never going to call them Wireless lego wireless. We're not going to we're not going to say the word lego in there But um, but anyways, there's a contest. So we're going to do that. Okay, that's the idea Um, we also have a guide for the eight of fruit at tiny eight one seven breakout catney wrote up Demos for both arduino and circuit python. I'm using this board They can use as a dev board, but we kind of advertise it and they're selling it as a seesaw Platform because it's preparing with seesaw and the catney has also been going through the welcome to circuit python guide and giving it a big scrub down A lot has changed in the last couple years with circuit python And we want to Optimize this guide correct any out of date information update some examples And maybe simplify some of the demos since we have so much hardware now that We should probably just show one wiring diagram and then send people to guides If they uh, if they need more details. Yeah, all right It's time for some main new york city factory footage And it wouldn't be new york city factory footage Unless you saw the disney complex being Birthed across the street. It is so loud right now. Uh, it was that side. It was so loud We were like we have to go inside. It's so loud. It's so loud. All right 3d printing time it is Okay, so we got two things. We've got this, uh LED LED glove thing it has And then we have this really cool speed up of a drill bit holder that is teeth. It's it's freaky Uh, some people will think this is great and delightful and some people will shriek with horror. So, uh, let's play it Hey, what's up folks in this project we're building with wireless LEDs This uses electromagnetic fields and inductive coupling to pass power through the air Each led has little coils soldered to them so they can light up wirelessly with a distance of about 15 centimeters or six inches This kit comes with a large inductive coil and 10 wireless LEDs We designed and 3d printed pieces so we can fit them into lego compatible bricks We think this looks the best with transparent bricks so you can illuminate pieces like these infinity stones The inductive coil is secured to a foam core board with capped on tape so it can be propped up vertically We're using an adjustable power supply to light up all of the LEDs so we can easily adjust the brightness We designed two different sizes of lego compatible bricks One houses a single led and the other can fit two leds The leds are fitted inside the 3d printed brick and they twist to lock them into place This makes them non destructive so you can still pop them out if you ever need to The double led brick uses a divider that holds them tightly in place so they won't rattle once fitted inside We found these two sizes work with just about any combination of bricks So you can use the right one to illuminate your builds For more information and project examples be sure to check out john park's learn guide We hope this inspires model makers and builders alike to start using wireless LEDs to light up their builds Thanks for watching and make sure to subscribe for more 3d printing projects from made of fruit Yeah, I saw that I'm like we got to do this So uh tune in on wednesdays to 3d hangouts with no major and learn how to make all this stuff Okay, before we go on to the next segment, don't forget den rails code Code didn't round in round and round 10 off in the age of restore Our lady is time for ion mpi. That's right This week's ion mpi brought to you by digikey nade for it is It's from st We've got another one of the st sensors and this is one that's actually available in stock St makes a lot of sensors like to sprinkle them throughout the year because I don't like to have only one vendor But um, they do make amazing time of flight sensors So this week's product is the vl 53l 5 cx now ironically The actual sensor does not have that printed on it. So nicely But that is the the part number and this may sound familiar because The st has been a lot of sensors in this family called I think the flight sense family of time of flight sensors So The way it works is inside is you know an infrared Laser and it actually like literally bounces light off an object and measures how much time it takes to get back Um, and they started with like the vl 6180 Which you know, I think was about like a meter distance max and then they had the vl 53l 0x the 53 l 1x the 53l cx and then now the vl 53l 5 cx This is the five and four was the three for the one for those zero So it's like the number is incrementing and they skipped four. Why I don't know But um, this version of the sensor. Um, it's the same idea. It does a distance measurements using time of flight, but one thing that's kind of um, sorry, this is the um Showing, you know, they it measures a photon distance. Um, but what's really neat about um the v 53 vl 5 is that um, it now has a matrix of of eight by eight that it can use to do You know like it's lidar in in two-dimensional space not just point So if you see here the history of of these chips, um, start with the the 6180 and we have breakouts for, you know, all the early ones Um, you know as they got better and better the distance got better So 20 centimeters to 80 centimeters 200 to 400 um, and then with the Vl 53 lx. Um, it does multi target or multi zone detection. Um, so what does that mean? Okay, so go to the next slide Um, you can see kind of the bottom right is the multi zone distance detection So you can basically instead of just having a single point of light that you like throw at the whatever object You're bouncing off of which is how all the other sensors work. They were a single point Distance sensor It'll actually split up the field of view which is about 60 degrees into a four by four or eight by eight grid Um, and then tell you the distances for all of those Um items now it's not going to be as fast because it's going to it actually does like You know, it's usually 60 hertz and I think it actually does one 60 hertz measurement time either four by four or eight by eight But it's kind of cool because you actually kind of get like a grid of measurements and you can do stuff like gesture sensing Or like um object detection. You can do some basic machine learning on it because you get many more points of data Um, you can uh, you know showing here The the eight by eight grid and the distance so you can start doing things like you know, if your hand is going Back and forth not just up and down or if it's moving in a circle I have a demo I'll show, you know, kind of what the the quality is although I think, you know, you can do more filtering on it um, but uh, it it actually works like you can get data and um across again a range of Up to uh four meters 400 centimeters for each data point in the eight by eight grid Um, and this is what it looks like, um, you know, you can do four by four. You can do eight by eight I didn't try four by four. I've only tried eight by eight. Why would you do four by four? It's much faster Um, because you don't have to measure as many data points. So, you know, you pick the which one you want What I like about um st is they're now releasing an ultralight driver for their sensors So this is a sensor that's actually quite easy to port to a microcontroller. You can port it, you know, people port it to Arduino You can port it to You know, whatever chipset you want Historically, it's been very hard to get drivers that weren't tied specifically to whatever chipset and ide The company wants to use so if it's like nxp it'll only work with mcu expresso And then if it's, you know at mal or microchip, it'll only work with You know at mal studio or the or the pic ide or mp ide, but what's nice is This driver was completely agnostic and you can use it with gcc or keel or whatever you want All you have to do is implement the iSquad C ngpio Data rights and I think like a delay and it'll actually do the rest of it, which is pretty cool We even designed a breakout although it's not done yet Um, but um, it wasn't too hard to put it together again The pinouts are even though it's not physically the same size as the vl 53 l1 or l0 Um, the pinouts are very similar like the the overall design is not that much different. Um, they did add a iSquad C Uh low power like iSquad C reset. That's the iReset pin And that's to allow people one of the things that's always been a little annoying is there's a fixed iSquad C address And there's no iSquad C address jumpers and if you want to have like a bunch of these you can hook them up on the same bus and Put them into reset like all but one put it into reset and you can reset it into a new iSquad C address Um, but in all of these meant you had to like physically like actually reset the whole thing Now there's just iSquad C reset So it's a little easier to just turn off only the iSquad C section without having to Turn off the whole chip because it does take a couple seconds to boot And best of all it's in stock available on digikey 257 when I checked Um, 957. Oh, yeah, sorry. Yeah, 957. So there's quite a few Pick them up. They also have some dev kits. Um, I'll show off. I got like little breakout boards, but they also have nucleo You know add-ons for for st development boards. You want to show your demo? Yeah, I'll show the demo. So this is the um Focus, uh, so this is the I got two breakout boards because I'm smart I always get sorry. I actually came with two breakout boards. Um, this little kit This one's nice because it just gives you the sensor here as you can see Um, and then a bunch of pins and then like I think this is a 2.8 volt ldo um, soldered on and Um, the uh, you can even kind of see this blinking here. That's the time of flight, uh, laser Uh, you know coming out, um From the from the sensor and then you know, it's diffraction graded into the four by four eight by eight Don't move this over here. So this is a clue board and I'll say like I think this is a little bit more work This is like me spending like, you know, a couple hours on it only um You know, it definitely um If I put my hand and then I tilt my hand You can see the tilt Of the hand does, you know, change the gradient from, you know, being light on If I tilt my hand, it does, you know, it does do Some detection what would be really good. I think to do next is, um, I want to do some bipolar Uh interpolation, um, just like we did with our thermal cameras Um, but you I can see how you can do like gesture sensing Recognition and they also have a video on um using this for water level sensing apparently another really good use If you don't want to actually dunk something in water You can just have this because it can do four or eight meters Some of the versions of this chip can do eight meters. Um, so that's this chip. So, you know Basically the the upshot is it's very similar to the previous 53l one x is but it now does this eight by eight grid So you can use it as like a micro lidar for, you know, robotics applications or gesture recognition All right, and that's this week's eye on api All right, we're gonna just keep rolling into the next segment, which is everybody's favorite segment All right So, uh, first up we have some coming soon big announcement from raspberry pi. They're teaming up with you know tonight is lego theme They're teaming up with lego. Yep. This is a raspberry pi build hat. Yes. It has an rp 2040 We do not own any of these otherwise believe me. I would show you one It's a it's a hat hardware on attach the top of a raspberry pi plugs into your two by 20 raspberry pi. So anything from a pi two or one b plus up to a pi four pi zero and It is designed and if you go back it's got four slots for Sensors or motors that these slots. I believe there are two i-square c pins two motor pins And two power pins. I think Maybe a pwm pin, but these are Used with lego spike and like mechatronics robotics parts. So You know one nice thing about you know, we sell robotics parts We just sell like raw motors and stuff, but the stuff that comes from lego is durable I mean it's meant for kids and phd students alike Both of which are very destructive human beings To play with the robotics and sensors and have this very simple plug-and-play system Um, you know that said I think you know, even though they're doing micro python with You know lego mechatronics products now you might want to have something more powerful You might want to integrate it with minecraft. You might want to integrate it with scratch You might want to integrate it with python Attaching it to a raspberry pi And then using the python library that has been written Will make it a lot easier for people to be able to do like quite advanced robotics Another thing is the camera on the raspberry pi is really powerful You can do machine learning stuff where the camera on the raspberry pi is recognizing stuff and then moving the motors through the build hat I'm just gonna toss in a prediction. So the raspberry pi trading code, you know, they they took funding. Yeah, and Eventually, you know, you got to sell. Yeah, that's or go public or something something Why wouldn't lego just buy them that'd be a nice that'd be that'd be a pretty good match Speaking of raspberry pi stuff There's also a power supply that goes. It's coming soon now. There's also coming soon So the the the build hat requires a power supply and this is an eight volt six amp power supply It's a little bit of an odd voltage right eight volts. It's like not five and it's not nine And it needs six amps because you know, the motors are are quite chunky. They can draw You know an amp or two a piece So this power supply is designed specifically for the build hat and the build hat has a step down converter So it'll also power the raspberry pi when you use this power supply. So We'll hopefully get uh, both of these again, you know chip between chip shortages and shipment Delays, but hopefully we'll get these by the holidays Next up Okay, next up um retail, you know, we're talking to the arm Foundation and and the real tech and they were like, hey, can you carry some real tech stuff? And we're like, yeah, we'll carry what what do you think we should carry? And they're like, well, why don't you carry the real tech amoeba iot dev kit and I was like, okay Yeah, this is kind of an interesting dev kit. Um amoeba is interesting. Um, you know, there's there's definitely High competition right now for microcontroller, especially arm cortex microcontrollers and similar Where there's a wi-fi and or bluetooth module built into the core And that's what amoeba is it's a you know, the module that you see there It's kind of a chunky module, but it has a dual core arm processor. I think that's wi-fi has vle5 Support so it's kind of like an iot processor and it's designed to be Low cost easy to use and one thing that is nice about it compared to expressive core. It uses arm There could be situations where you're like, I really need an arm core To do the development. Maybe I'm using pre-compiled biaries or maybe I have optimizations that or I just really like the arm Cortex system. I don't want to have this, you know, alternative tensilica processor Um, in which case, uh, check this out. So, uh, it's a dev board Okay, um, so this is the the module itself and it's got a tin and it's got the antenna It's got audio output. It's got microphone input. It's got a couple buttons here Um On the back it's got a micro sd slot. This is a usb serial converter. It, uh, I don't believe it has native usb Well, I could be wrong It really looks like it does. This is probably the native usb and this is the ft 232 r. So this is the usb serial converter. So used for debugging. Um, this does have Arduino core support through real tech. You can download a board support package and they have example code for Um, using it with uh, with arduino to connect to wi-fi and bluetooth Um, you know, I always like carrying like, you know, lots of different ship sets We've carried like 10 different wi-fi boards and uh, this is another one It's not for beginners. I think if you want something that has tons of examples, um, maybe use, uh, Expressive for user raspberry pi But you know, there are situations where you might want to experiment with a new platform Where you want to use amoeba. This dev kit's great Okay, and uh, next up to stars of the show tonight besides you lady at our community our customers our team And everyone here tonight are some din rail stuff. That's why the code is dino Yeah, yeah, we're gonna get back to having some more ate a fruit made stuff, but uh, in the meantime, get some din rail So we got two things you got two different ones. Yeah, so people really do like our din rail Like breakout boards and stuff and I was like, well, we should carry something that's just kind of a simple terminal block Um, so we have two options. One's like a one to one 10 by 10 and one's a two by six So let's go to the I like showing these photos. I know there's like snakes Okay, so let's go to the overhead and I'll show the the the 10 by 10 For lack of a better word. So this one, uh, you know, again, there's uh, this is a terminal block and you can, uh, push to You know, I don't want to break my nail, but you can use a screwdriver to press in to release um Or plug in strand of core or solid core wire Um, this one if you see there's numbers the number goes from one to 10 So each one of these each 10 terminal blocks They connect through one to the other side So this blue wire is connected to this blue wire this white wire to the white wire this green wire to the green wire So this is for like, you know, basically making Wiring jigs, um, of course the slots on these terminal blocks are kind of chunky So if you if you want to connect multiple wires inside you could probably do like two or you know, or three Uh, 22 gauge wires on each side But it really is like a one to one connector and then on the bottom There's the din rail slot and then The two by six this is kind of a power distribution bus So on one side there's only a two pin connector and there's a little plus and a minus So you can imagine you have power in here plus minus and on the other side There's a whole row the top row is plus and the bottom row is minus and you get six of each So this is really good for like, okay I want to distribute my five volt or 12 volt or eight volt power in and then out Um, I can see this being used for like neopixel strips You know, you have like one gigantic 10 amp power supply coming in here and then Strips going out to individual neopixel strips on the other side Either way they fit perfectly on classic Din rail, this is my little magical piece of din rail And for the folks who aren't familiar with din rail went where would these din rails be besides, you know This demo in your hand like where where where do these exist? The only thing is it's always hard for me to remember which way it goes What do they exist in the world? So they're often used in Well industrial and mechatronic projects like when people are doing industrial projects because Basically, you can just attach stuff to this this standard. It's din just means it's a standard railing And you can move stuff around so I see these in robotics. I see this in automation processing I see this when people are Building room-sized projects where they want to Yeah mount electronics securely, but it's still like exposed when you can get to it. What about like server racks Server racks. I don't think they use Din rail, but you can attach din rail to server racks. Sometimes, you know, they'll have a The servers usually go into, you know, one-use lots I think din rails are I don't think that's what they use in server rooms, but I could be wrong But they you know for for other Parts of the server room they might you know on the wall if they want to mount something Um, but I see that, you know, basically whenever people do large projects It's kind of a favorite. Mechanical engineers love this. Shit. By the way Folks are saying plc controls inside of kiosk tell co-closets. Yeah server cabinets, yeah Yeah cabinets and closets because it's easy, you know, there's a lot of mounting holes You drill this on and then you can easily slide things around attach it detach it It's a it's a way of doing attachment and then you can Sometimes you can uh loosen these or you can pull this up And then you can yeah the screws on the side maybe that yeah Anyways, uh, so we have a couple din rail things like breakouts and stuff And now we just have yeah a little bit of more din rail party going on here and those new products All right, we have plenty of time we'll do some yeah, we uh, we had to get out a little earlier tonight. So we uh Put we got everything in but uh, it was it was important for us to uh To to get we get to everything finish by you know a certain time tonight because we're busy. It's an hour. It's good. Yeah, we're finishing So Here's the question time. Um, we don't have top secret this week. Um, we'll have some more top secrets soon So, uh head over on to discord.com and ask your questions. I have a couple uh lined up. All right great ready any plans For products with rt eight seven two Oh Dn I think that's what the amoeba is and so that's what we're carrying I think it's a nice breakout and you know honestly it has everything on there So I would just use that and if you're going to use it plug that into whatever You know make your own little shield type dev board thing and plug that in yeah Um, so I think this is not out yet, but this is this is why they can't find it They said how do I get my hands on the time of flight? On the breakout. I don't see it on the website Yeah, why don't we our breakout isn't done yet? Because I just designed the pcb and I only got the code working today But um, there are breakouts available on digickey. Um, if you search for that part number You can get the chip, but there's also a couple breakout boards available. Uh question. Do you all have company titles? Yeah, well, we have a cfo. I'm the engineer your engineer. I'm a managing director I'm blink a shirt. Yeah used to be creative director. Um, there's all sorts of uh titles You're a cat wrangler. Yeah, but I'll say this We're a pretty flat organization. So folks will have titles that there'll be directors or seniors or leads But it is pretty flat. So people don't get too hung up about it, but we're Always cool. We don't do things like VP of this VP of that. We actually Have director level and we have you know, c level folks too Next up can the induction ring be square rectangle triangle shaped and still work It can but it's never gonna work as nicely. Um, you're gonna get the most efficiency when it's round Okay, here's a random question But if you could tell yourself from three years ago any advice, what would it be? You know, we asked this type of question. I would like stock up on n 95s Masks that would have been really handy. Yeah to have like 10 Yeah, I think the advice would be kind of the same advice I would tell myself during any times There's just gonna be some ups and downs and um, the best thing you can do is Uh Be good to one another because like it or not, we're we're stuck with each other and so as hard as it is sometimes If you can remember that Then Things will eventually get better. Um, you know, this has been a tough Year and a half for a lot of people So and I think the reason why we're coming out the other side And a pretty good spot is because the way we treated one another And I think our customers and all of you all out there Rewarded us for we did a show every week. We told everyone what's going on And it was it was important to a lot of people and there was a lot of times where we were exhausted and We wanted to stop doing a lot of things. Um, but we kept pushing through And we're really thankful For the community and and keeping us going. So thanks. So that would be the advice It's so it's to say I could send that anytime and it would still still be relevant Um, next up, I understand the difference between Different real-time clocks is typically precision if I'm creating simple clock using a matrix leds or concentric rings Rings is the less expensive pcf 8523 enough. I'm trying one now and it's always have a couple Of other more precise expensive rtcs. I don't need precision Yeah, I think a pcf 85 23 is fine. I mean like You know, especially since every year you're going to be changing The clock probably to account for daylight savings time and then at that time you'd correct any Seconds or minutes off. Yeah, uh question. Is there a way to switch power off on through a thin plastic enclosure? I have a lipo battery Plus it's a bit see inside a plastic thing But no way of turning it on off thinking a magnet might do it Yeah through if it's through a plastic case, then you can use one of our door sensors, honestly, which is a reed switch In a magnet, you know in a plastic shell that's mountable and then you just put the the magnet on the outside That's one Very easy low-cost way to do it. All right question Is there any disadvantage to leaving print statements in your code if your project will not be connected to serial? What in use no, they'll just be skipped over But they just they take in they take up space in your firmware, right? So That's the only reason why you might want not have them Okay um Do you have a lipo charger with an i-square c to report battery level? um No, I haven't found any I don't think or maybe the bq24074 has i-squared c. I don't remember All right, I don't think so. I think you need to have a separate uh fuel cell They work in different ways to be honest. Okay, folks use these din rails and re-improve boxes. They also Looks like a lot of people use din rails. So that's good. Yeah um Let's see. Oh, uh, here's uh some advice. Well, check it out in the chat Uh, mr. Certainly for yourself some good ones life is going to be a lot harder than you imagine remember take care of yourself and Be kind to others. Yeah, it's a good. Yeah, see theme Um, let's see if there's any more coming in here um Okay, uh, there's a lot of 63 year old fans of yours. Yay way to go you got that market corner there lady Cool. Um, let's see Uh, didn't rail people are printing out stuff. I think I think I think We might be through all the questions. Well, you know, if you're watching this recorded and you're like, oh I would love to ask a question. You can always go to a discord and ask questions where they're all the time Um, let me just make sure I didn't miss any in any of those shots even though I'm supposed to only look at discord um I think uh, I think we're good. Okay. Okay. Those are the questions. Thanks everybody. Oh wait, here we go How much experience do you need to gain? Uh, the title blink a shirt wear. Oh because you have one me. Well, you have to be me I would say you have to show in the shirt. I would say, um, so no one Pedro made these shirts Um, if you were to do something really cool that helped no one Pedro that you might be able to convince them To send you a shirt, but that's completely up to them and you know, I have nothing to do with it But uh, they've been known to um Send shirts to people, but it has to be you know For uh, oh There was one other question. Sorry. Yeah Okay, our neighborhood has an increase in late night crime. I'm looking to do some analysis What would be the best light sensor for mapping readings in our neighborhoods anything that would go very low lumens wide range of values I think any of our luck sensors will do the job I think we have a bunch of light sensors and they're all they all have pretty low range. I think the The VEML Can go down pretty low And with that are the questions. Thanks everybody. Perfect timing exactly nine o'clock All right, so let me uh Let me try to pay some bills here. Um, dine rail Dine rail for the store. I'll probably turn it off in midnight. Dine rail, Dine rail, Dine rail And uh special thanks to Dakar who's running stuff behind the scenes and the Ediford slack chat Especially thanks to everyone in the chat great questions and commentary and Super chill show. Yeah, we had to make it really chill today. It was it's been a last hour and a half really great It's a bit of a week. Some days are really hard, but y'all y'all bring it home. Yes So we'll see everybody next week next week is eight a box unboxing But before that is going to be the show and tell and uh once again if um Oh, is it 27th or is it next week? 27th is next week. Is it really? Yeah, it's 27. Oh, wow, what is Wow times flying. Why what's the what? Yeah, that's when do the unboxing it's before it's for how long yeah seven days. Okay, so we're doing that next week Um, and uh, you know, if you don't get your box by Halloween, please be cool because it's like we did we did everything We tried i'm surprised like we were getting ready to be like well, it's not going to ship But we we're shipping is just yeah, we shipped out. We shipped out the parts october 1st No, sorry, september 27th and they're showing up on friday should have been should have been two days was 30 days Yeah, so um, check that out and uh, don't worry the eight a box like you're gonna have fun with this all year long Yes, um, but if this is the end of the world for you just cancel and come back later. Yes, it's okay Thank you. No judgment. All right. We'll see everybody next week This has been an age of fruit production. Bum. Bum. Bum. Here's your moment of zener