[LiveStream #005] Raspberry Pi 4 + Intel RealSense D435 + Chat | Day 1

you you you you you you you you you you all right hi Akash how you doing hope you're doing well as well hi vamsee juice I'm sure people can chime in and see when I say when I'm up - but I'm gonna try to turn on the camera in a little bit on my workbench and I'll be trying to connect a intel realsense camera to our Raspberry Pi so just stick around you'll see what it's about and then yeah on this window that you see on the screen I just connected to my raster a PI did a remote login and instead of connecting the PI 2 which is a single board computer I don't know if you know what it is I'll I'll bring it up so you can naturally see it but instead of connecting that computer to a monitor on a keyboard I just use the screen here to connect to it and run commands and try to make it work with the little camera you'll see it in just a second [Music] second camera I'm trying to setup so you can actually see it on the screen right now it's just a blind black image but hopefully this works yeah there we go yes good old trick of I'm plugging it I'm plugging it back in so yeah this is a little aenthul Rhian sense camera but funny that way so people can see it Thank You Akash its I found it fun thank you for for joining the stream and sharing in the the fun with me I haven't used a camera before so I'll try to set it up see how this goes well I need to install Ben first thing you should come by default with raspbian but it is what it is swap summaries change it to 2048 I guess rebooting or not that's kinda interesting that this is hot swappable alright let the installation fun begin might take a while that mean trying to refresh the page I have on this wonder so I can see your messages without looking this way alright so a Koosh you're doing lots of learning huh Thanks I'm glad the videos are useful for me it's getting a chance to play with the electronics and I'm glad not only do I get to play but make something that it's useful for some of you so thanks for letting me know alright ESP hacks nice I try to keep them basic so that people can actually use the code I find that some of the makers creators they end up making like a huge project and if I want to use a piece of it for my own personal purpose it's a little bit difficult to extract that piece of code so if you see my videos they're very basic but you can use that piece of code as this and then turn it into your own application so that's my goal hopefully that's how it's working I'm glad to hear that's the case for us well vamsee of course hopefully this is soul with a little update which I should have done before - well do an upgrade it's a brand new if you have use of Raspberry Pi I use earlier today I was live streaming and I got to a point I did other things and I got to a point where I was flashing a brand new image for the Raspberry Pi and you know it is really takes about ten minutes so I finished the stream there and then got on with my day and I'm just coming back to it so just it's just a brand new image so I'll update and upgrade it and all right apparently I don't need to do any of great great I might have upgraded before actually let's see if this works no all right so we'll try to install as many of this as we can and take it from there but yeah it's not finding I might need to add a repository actually to this but it didn't say so let the Google fun begin [Music] thanks so much for the kind words I'm glad you like the tutorials gonna try I don't know how to pronounce a name I'm gonna go for a cheetah so thank you so much I guess if I jump on issues there might be something there but let's just start googling stuff yep just goes back to our repository to the issues but same problems I'm having let there be a solution it's not hard to figure it out myself right there is a solution doesn't seem that trivial but it is what it is at least they were working with a Raspberry Pi for the guy that was following which is just a readme on this repository it was for a Raspberry Pi 3 so seeing that if I follow this I should be able to get the camera working nice ignore the error and continue to a next install command alright I like what I see I hate it when they include this little dollar sign it's part of the command I know it's to indicate that you're on the prompt but it's not that trivial to copy paste in line whatever it is I'll cheat and use the URL bar to do it is anybody working on any projects right now and a follow-up question to that how many people are working on ESP related projects and how many are working with the Raspberry Pi think most of you if I were to take a guess are working with a esp8266 this p32 trying to do more videos with the Raspberry Pi hopefully get more folks involved in using both so but how do we go back and forth between microcontrollers and single board computers I see if I'm seeing ya I do the same I go back and forth what are you working on with a rust-free pie in a multitask at the same time as answer some of the comments that some of you leave thank you always for letting me know if something is wrong with a video if you want to see another video made or if you have any questions about that video so I try to reply to every or I do reply to every single comment so sometimes it takes me a while and I get to all of them nice you're doing on my mesh network with the Raspberry Pi nice you said a whole bunch of raspberry PI's in the mesh or do you have other devices like yes you know combination of microcontrollers raspberry PI's or other single or computer I don't have that many comments I should be right next on of installation right [Music] local IP which I plan to make public yeah so a very good question ochita my gonna - there's a couple of ways I'll give you the explanation and then I have a couple of videos then you're welcome to to use because as usual you'll find a Colbert but number one is using services like things speak for example it's a popular one where you connect your esp8266 over your local Wi-Fi to one neighbor or to a website and in this case it's think speak and you add the code that they give you to the rest to the esp8266 and it sends the data or you know receives messages from that server from that website and you know one of them is things week right you know you see that you can post the data they'll do charts for you but they handle all of the things that you want to do with your esp8266 so that's limited right it's not like they can run your own code another one is called UV dot you know these are not sponsor messages I guess it's what I use and you can watch a couple of videos on you know me using their service and yeah but like I said it's limited because you're you can only do what they allow you to do so to speak and I have a very what I would call very comprehensive tutorial on how to make your own instead of using their services how to make your own but the gist of it is that you always use an external thing an external website where your esp8266 sends data to and then when you're on the other side of the world you access the website young access the esp8266 directly so unless you want to do something like port forwarding or run a server on your network and I don't necessarily advise that I think it's better for the communication to be you know you send it to say something like an Amazon server or in this case I'm gonna show her Roku it's another service and then you access that server so you don't access the esp8266 directly does that make sense let me show you that video if I go to this open up my videos and remember what it's called but this I think it's this right here I'll post the link on the chat that way it's easier for for you to find it but yeah so have a look and ask me if you have any questions I so I use the service called Heroku where you can run web applications and I wrote a web application which is just a fancy word for a website it's a glorified website but you've got to do other things so that that website is shown and that website doesn't live on the esp8266 it lives on the page that I'm I thought I have my screen up sorry I'm still getting used to streaming so I was pointing at the screen before and I was showing you oh you have this service or you had this service and I had my workbench camera going so I apologize for that but this are the websites I was referring to things speak is one of them you read out it's another where they do the things for you and this is the one of video that I'm going to post on the chat and this is where you run your own web applications and I wrote it in Python and again it's a web application so that it just displays a website or runs a website that you can do this triangulation like you that website on your esp8266 on your local network yeah let me just paste a link on the chat yeah that's another way ochita tunnel services but that's the same you know port forward forwarding on your router you're opening holes on your on your local network in incoming holes for you because and I don't advise that cuz then you gotta make sure you fire wallet or whatever and there's a lot of people with free time in their hands that get up to no good whereas the way I'm suggesting with this website called Heroku or this application web application called Heroku we're running on Heroku then you don't open up hole on your local network to the wide area Internet right you're just telling your esp8266 to send data or query for data from the server running on the Heroku cloud service so let me see I can miss a couple of messages how can we save our SD card data from stealing our programs so Raspberry Pi password is not enough to protect you could and encrypt the contents of the SD card and I get a little bit better and it's not trivial to do but it's it's really really really hard the number one rule against hacking is not let people have physical access to the information right like once people have to see galactus whether it's your computer your SD card anything but if you have physical access and all bets are off but you know you have a lot of ways to deter most people right good there's only a few people relative to everybody with a computer or bad intentions only a few of them are able to you know be smart enough to know how to crack a password and all that but password protection that's the easiest one right if I have physical access to your SD card I can use that I don't have to be a coder I can just unload a tool do a google search download a tool and brute force my way through cracking that password so the best way would be to obviously it's an obvious aim but just be careful with who gets access to the SD card and secondly try to look into encrypting the files that you you need to protect so because even binary files right if you compile something on C or C++ right and you only release the executable which is a binary file it's not a text readable file though still can be a reverse-engineered so yeah it's a it's a tricky business all right and then so I achieve yet so the tonal service is going back to that it's again just like opening up a hole but they're very useful right if you do tunneling over SSH that's the data is encrypted so even if you have what's cool man in the middle attacks someone between you you know cuz you're gonna be on the wide area network right you're gonna be out in the internet and your ESP is gonna be locally if you have a man in the middle as it's cold person in the middle attack the data is encrypted through a tunnel and that gets a little bit trickier to guess again the data is encrypted so yeah tunnels it's another way of doing it so the SD card data you're just looking to encrypting them see the files that you want to protect you know cuz you don't wanna do absolutely every system operating system file right you're just worried about the data the scripts that you put in there or something like that so you can look up to encrypt them but if you're thinking about selling a commercial application that has a Raspberry Pi in it that's you know that gets a that gets tricky as well you can compile your programs and turn them into again binary executables do not include the raw text files that you use to program your your code is that that's what you're thinking but even that as I said it's people are able to reverse engineering so right people reverse engineer you know things like the Google products like Google messed and things that go on your home and that's you have several layers of protection and it runs on a very you know on some chip that you would need to like probe the code out of and people do that so you can imagine if I have access to a rusty pipe where it's running an operating system if your code is in just text files then that's that's super easy so heimo is how you doin the best google virtual machine Oh which is the best between two of them I'm sure you know I haven't used the Google VM but older products are for the most part great they work great so I would imagine they're equivalent I've used Heroku and I'm perfectly happy with it and it it's free I don't know about the pricing for Google VM I'm sure they have something at : Heroku is free up to a certain you know obviously it's limited you have to you know it's a cloud service so if you want a bigger database or you know more things available you need to start paying but if you follow the video I posted on the chat you know I show you people how to use our service for free yeah exactly so you know you start working with different processors and you instead of using an SD card you start using either the building flash memory or you you have a you know SPI flash memory chip on your printed circuit board right like you start building your own stuff so you make it less accessible to most users but like I said you know people with enough time on their hands and enough knowledge don't yeah that don't find a way you know I'm Tony I'm very few people relatively speaking to the number of users that you're going to have but so you know you can only make it a certain level of protection so you're welcome yeah I taste a link so I can go ahead and close yeah think I was talking before and saying all sorts of things about what I was doing and I probably had the camera on my workbench so well I guess for that but this is what I was fighting with I was doing in installing packages on the Raspberry Pi and yeah I was having some errors for again that intel realsense camera and I was happy to find in the issues for the repository I was happy to find a apparent solution so it's pretty recent November 14th of last year and it's on the Raspberry Pi for I was telling you before that you know this is the guy I'm using and he was done for a three by three this is the guy I'm falling so happy to find you know without doing much hard work myself an apparent solution to my trouble the world is bouncy thanks for for the questions see well Dana I mean yes for the sake of being organized I'll create a directory called work as I usually do and put it there yeah this is not the most exciting process installing a bunch of stuff but part part of the process of getting I'll I'll shorten a screen on in a second this little fun thing to work you know until we on realsense camera pretty excited I'm gonna be working with it over the next few days I'll I'll pop on the stream see if anybody's interested I'm using it for a video that's gonna be coming up whenever I'm finish setting setting it up and I'll do YouTube videos main reason I started working with this well I wanted to work with this but I don't know if you know I mention it yesterday on the stream that I'm working with the element14 people I don't know if you know about them they're sort of the community side of this company called Newark electronics which is part of premier Fornells I just dissipate electronic selling companies and they have a community side so they reach I reached out to a bunch of makers like myself to make content for them which is great because they they provide the toys that we can use for everyday okay my name is Anne so you know shout out to them for enabling enabling us to have toys like this and I've done a few videos for them and you're welcome to watch but the main video will be a post on that channel and I can when I do a livestream after the video is released I'll post a link but obviously I want to keep playing with it a little more so I'll make a video on my channel as well so hopefully you all of you enjoyed or at least most of you enjoy it so vamsee how far will lower one goal I so I want to do a video where I take a lower one board and an esp8266 and say an esp8266 pro that has a ceramic antenna and you set up a client and a server start just walking away from it you know see how far I can go with the three of them I you know I'll go to an open field so it'll be filmed outside not in my little lab and it's one of compare the different ranges I hear that Laura one those boards can go up to a kilometer I just line line of sight that's that's that's pretty well so I want to I want to test that you know have that communication you know with yours a very small antenna and that's very antenna dependent and not having obstacles in front of you so that's gonna vary greatly but it does have what seems to be a significant different range than you know your regular Wi-Fi antennas and devices right still downloading name soon they included every piece of code out there in this repository I'm just kidding man yeah part of the fun Michael answering comments opening stuff I don't want to open so on the table this is the Raspberry Pi Thunder here I just I'm not you've seen on my you know I don't know how recent of a video it is I built a little remote-control car with just I put together the kid the base is a laser cut acrylic chassis has a couple of motors a motor drive on top of the Raspberry Pi so I was too lazy to break it all apart so I'm using that you know contraption or device that I built for juice running code on the Raspberry Pi so for at least we're talking to the camera all I'm using is a Raspberry Pi that I use for running this little robot car or remote-control car and these are used to USB batteries one of those that used to charge your phone so I was using them to power the Raspberry Pi and be able to just drive the robot around without it being attached to a power supply to you know one of those power supplies I never attached to a wall so batteries wheels yeah a lot of my stickers yeah this is your soldier housing a little bit of soldering on a previous stream here and you know like you can see it but a little bit further in that direction it's just my soldering iron and a couple of things a couple of our things free for for soldering this guy who always falls with my little best player soccer player in the world Leonel Messi action figure so I always have it in my screams it makes me happy hey Mohamed how you doing glad that you enjoy the videos thanks for stopping by and thanks for for saying hi I'm glad yeah I'm very surprised that people find them useful I mean for me it's fun playing with the electronics it makes me very happy and you know some of you seem to enjoy them so thanks for letting me know hahahahaha Thank You garrison yes I should I should wear it for every single video and every single screen that I do Mahad and Dena but Janna I don't know what's up um I guess I'm supporting my my Make Magazine shirt today so good morning all right instead of margin teenagers here I keep this guy right here okay he always stays by my side and of course I have to there we go and yeah it's kind of surprising I always have something representative of Argentina in every room of the house and everything that I do so it's surprising that here in my little cave where I do my work I don't know I don't have anything honestly I'm ashamed of myself I have just a very large flag up in the living room and stuff but yeah I'm going to fix that so for the next room I will have something yeah thanks for calling me out though I appreciate it so what's going on hi sight I'm trying to set up a intel realsense camera with to work with a rusty pipe for um yep just chatting with people who are stopping by such as your show and while I'm waiting for packages to be installed so that's the hardware that you're seeing on screen right now this is what's what's going on on my computer installing stuff on the Raspberry Pi which is taking a really long time to the spot where I'm downloading the library that I'm going to use for controlling the camera so you know staying at sweet time obviously my bandwidth split between doing the livestream and downloading this and shouldn't necessarily interfere all that much because livestream I'm uploading downstream or for downloading the library its downstream I'm downloading stuff but seems to be a big repository I'm sure you know github it's perhaps being seeing all sorts of traffic with everyone staying at home maybe but yeah just waiting and chatting taking the time to answer some of your comments and when I say here I mean people on the channel in general I try to reply to every single one of them where I do reply to every single one of them even if it takes me a little bit of time [Music] ya know also you know if I see duplicate comments or use panel I spam different videos with the same comment I'll reply to just one of them under the the others just to try to keep things nice and neat it was the same comment on two different videos and yeah this is a third one then I'll probably reply to this one later I need to run myself but I think I got the time right now it's real 9:00 myself sometimes like the videos are from so long ago that that information is gone hey David fancy seeing you here also I'm trying to you know work and perfect my mic screaming how about you what are you up to still working on that editing I think I've read something like that on the on our little discord and I'm glad you were able to to make this dream yeah I I've been following that saga both on Twitter and you to their Twitter or a discord that you that you went out loud and I'm not gonna give anything away range to not spoil anything but I'm definitely looking forward to the video and I think you're making a video right out of the whole saga versus your little Commodore 64 oh I see my seven seven years ago yeah think willing to bet that most of us who made projects seven years ago and were to undertake them again we would realize of a few mistakes here and there but [Music] all right cool glad then hopefully it's useful to you a cheetah thanks for the kind wishes likewise as well hey take the SMS I wouldn't say late I think I'm gonna be here for a while I said a while ago but this process of making realsense camera work with a Raspberry Pi takes a bit of time so use your chatting and answering comments answering comments on the videos and comments on the chat yeah glad you stopped by what are you up to today you're making videos for your channel or well I don't see a link to the code that I use for this so think about optical with acrobatic and I hate watching myself only view this - pretend you didn't see it [Music] and then yeah actually go back to my friend Gerson hey where's my Argentina sure that will show it on video a beast I think that should be a my repository but kind of strange I didn't put the link on the video itself you know it's called Wi-Fi mode switch so not here maybe in the tips yeah fix that why's your file not being created that why I miss this guy called alright see obviously yes the type of code that I build or that I release is very very bare-bones very so it's not robust I don't do ever checking I mean it works and I just I wanna it it's always frustrating to me when you know I go and find a repository or a piece of code that I want to use and it's just this huge thing and I need to extract parts of it that never works I try to keep my code as simple but because of that I don't do any error checking and this is something that it's not the users fault yeah so that's that's the answer I have to give and it works right I just need to let them know how how that what so can I explain about the string literal that I'm using in the arena ID so sure I'll go for it and it's a it's a short explanation but I'll pull a piece of code on screen to show people what do you mean so let's see so what and my friend tacky SMS is saying is when do you use so this is what's called a string literal and when when do you use it what this does this for you take the SMS you're doing JavaScript so maybe you've heard of anonymous functions and it's gone they're more common on JavaScript for Arduino they're less common every time you use a function you name it like this function handle settings update has the name handle settings update and it's right here it's defined right here and you can see the formatting of when I call this this on method this way right I need to pass it the name of a function that I defined later for in this case it's such a simple piece of code that I want to write as this argument to the on method or the unfunctional method and function interchangeably and I didn't want to give that function a name and have to define it later in the code so because the code is so short and that's what that was my decision process so I use this notation so that I don't need to give a code name to that function and use the definition it's just right here so Thanks thanks for your question and hopefully that answer says let me know if that wasn't clear all right yes this finished what really oh well I'm gonna compare with what they have here yeah this is a lot later obviously yeah I should have GCC installed at least but yeah that's weird that see make did I make a title no nothing come by default interesting one day to see my birth all right oh yeah sorry about that so for full disclosure it's 5:00 a.m. local times yeah my my brain might get confused so keep me honest and I'll put it on the screen once again github and it's a good example of that maybe on tips I think the code I was using actually house it right yep so that notation I use it when I don't want to worry about messing up the syntax of a program reading in C write the syntax for a program breathing in C C++ it's very rigorous and when you want to break do break lines or whatever you know gets a little annoying so when I work with HTML pages and they're short enough and I want to include them as part of the sketch then that notation allows me to not worry about you know using double quotes on every single line like if you look at other repositories when people include their HTML pages on like an a sketch right then they use different things I found that this is the easiest way of writing HTML code because then you can have your web page laid out without worrying about following proper syntax for a C++ file so that's that's why - nothing yeah nothing mysterious about it hopefully I make sense let me know 3:13 all right about 3:30 and update it yeah it's called a raw like this raw string so and then you know that's implicit memory doesn't fail me that is just you know for syntax purposes all right think I'm ready for protobuf question-it I saw when I clone it inside probably not hey Seon glad to see you man Thanks thanks for joining how are you doing huh Thanks thanks for stopping by hope you you got some good night's sleep yeah and you know keep I'm I'm rooting for you so yeah keep keep us posted with with the latest developments so yeah I'm gonna get a good night's sleep and some rest so I really appreciate you stopping by thank you the joy the joy is the joys I should be taking notes of this because I'll probably need to do it at some point again [Music] so automate and live too do a new wiki on my github repository for the Raspberry Pi demo start taking notes because I've been down this path way too many times where I'll start doing something and yeah it works get all excited and then I have to recreate it and it takes me almost the same amount of time all right Intel reals the 4:30 and going to copy it what this great person did Chris that's a reference I'll format it later hahaha yeah hey Pete how you doing right yes it's so frustrating and now that I'm getting a little older I'm more appreciative of my time and after one too many knocks I learned the lesson the hard way hopefully not completely learned you know partials worry about the formatting a little later on that repository so yeah I'll format it later like famous last words in terms of the repository being updated Hey good morning fellow also no I don't know what the word in English would be where when two people have the same name but I'm also I also go by Cisco for me it's shorter for Francisco which is my full name so welcome what of course yep sorry obviously nice oh you also have a nickname yeah nice Mohammed welcome yeah for people joining in who are curious I'm trying to just get this real sense camera working without rusty pipe for and I was too lazy I was this is from a previous project everything that you see I'm just using the rusty pipe for inside for connecting with the intel realsense camera but I was as I said a little too lazy to just take everything apart that that's why and what I'm up to right now is installing the software on the Raspberry Pi which is when you are seeing before exciting stuff and then yeah well this compiles [Music] just wanna say if anybody is interested and you know asking questions chatting joining the community we're starting to form through this live stream I'm going to paste a link to a little chat application where for those of you who know it discord so we didn't keep in touch and you can ask questions or suggest ideas for future projects and I always remember I always forget the link so this is what I the easiest way I have to remember is from one of my github repository join our community our robotic channel community so ESP now protocol I mean sure you can ask that's the purpose of the live stream by all means anybody who has a question bring them and I'll try to answer them best way I can I am yet to use in this case ESP now so I have no no answer I mean if you if you have a question specific question maybe I can try to figure it out but it's one of the things on my to-do list to look at the ESP now protocol and do a video on it so I teach myself I can answer questions and hopefully make it make some content and others like yourself find useful so but USP now like yeah no no joke I have this is my little list of projects that I want to do so yeah ESP now is somewhere in there this is this is not but every time I get an idea I just write it down and I try to cross them off and not so not every video that I make comes from that sheet or even I have more ideas beyond those but ESP now is definitely one of them I'm just a little lazy to pursue it I find something that I consider more interesting and then I'll do that video but yes I'll hopefully get to it soon all right so I'll I'll post it up on my on my list of things to do because you're not necessarily the first person to ask me questions and then I go like I don't know so I want to be a little more inform and be able to be as helpful as possible so it has to connect with the router at least the master of the network or the Gateway to get connectivity with slaves if I you know I can well the code that I'm messing around with is compiling I can look for it and try to decipher the answer but if I told you right now then I be I did lying cuz I'm not you know certain if you know you have to have either the master or the Gateway connected to to the router [Music] yeah exactly we're we're all learning [Music] [Music] all right but yeah it does give me an idea for for a project trying to combine some sounds interesting you know that the ESP now protocol between the devices and trying to use Wi-Fi to push the data up to the web somewhere kind of like this question so like I said I'll I'll bump it on my list and hopefully fast enough that you can find it useful that you and others like I said this is probably the third question I've had in the past two weeks about it [Music] what are you using them for if you don't mind me asking and if it's information that it can be made public I'd be curious to see what kind of application are you using the boards and thanks for joining the discord oh by the way but Janna I think there's gonna take a ridiculous amount of time for compiling and installing the library but we've think we've we've made some some good progress I see so you tried it without the router the slaves are not stable I see but I mean that's kind of interesting right because my interpretation of it is that it's its own protocol and it doesn't need to be connected to three I'd rather write all the boards should be running it by themselves and just that question the first thing that pops up on Google it seems that they were having problems once they try to include the Wi-Fi router with the USB now network but I'll take your word for it that you know unless you have it connected this laser not a stable so now I'm I'm curious to see why why that is oh there's a lot of good yeah just warnings got scared for a second maybe I think I'm gonna go take a little break while this thing compiles and probably hop on a little little later today on the stream keep making a little bit of progress to getting the realsense camera but yeah so so far so good thanks for those of you who stuck around for for a while we're coming out to an hour around 43 minutes of having fun with electronics I think I'm gonna go for for a run and yeah take it take it from there gives us a little bit of time so I will be seeing you soon and if you you know however you want to remind yourselves that right now because I'm staying at home and have a little bit more time then the live streams will be almost on a on a daily basis and if you once I get done with what projects I'm working on I'd be happy to answer questions and even bring out some boards for you know working on quick things that you might be curious about so thanks a lot for watching I'll see you on the next one you

Channel: ACROBOTIC

Views: 910

Keywords: ESP32, ESP8266, Arduino, IDE, NodeMcu, Tutorials, Makers, Learn, Guide, IoT, Internet Of Things, Raspberry Pi, Wireless, Communication, Weather, Creative, Sensor, Python, Programming, C++, Beginner, Electronics, DIY, MicroPython, 3d Printing, CAD, Fusion 360, Education, Tutorial, Intro, Introduction, Web, Developer, HTML, Datalogger, Project, Sensors, Data, Visualization, Webserver, Server, Client, App, WebApp, Wemos, Robot, Robotics, Robots, Easy, Adafruit, Sparkfun, OS X, Windows, Linux, Embedded, Kickstarter, RC, Fun, Build, Engineering

Id: YiVJKp1GTWs

Length: 103min 48sec (6228 seconds)

Published: Sun Apr 26 2020