**** BEGIN LOGGING AT Wed Dec 29 02:59:56 2021 Dec 29 16:25:24 Anybody knows how to get the QBSP for Beaglebone AI? Dec 29 16:31:27 Guest53, have you asked the cQT? Dec 29 16:31:49 zmatt, starting push with bullseye: https://forum.beagleboard.org/t/debian-11-x-bullseye-monthly-snapshots/31280 Dec 29 16:35:04 rcn-ee I sent them a ticket, but will get an answer after 2 days Dec 29 16:35:51 Guest53, not suprised, probally on a holiday... Dec 29 16:36:55 I just started with embedded and choosed Beaglebone Ai as board, but it seems everything is going to be developed for Raspberry... Dec 29 16:37:29 I searched QT and nothing for Beaglebone... Dec 29 16:38:11 Some old versions had, but the current one nothing. I checked if they left in other versions, again nothing. Dec 29 16:39:06 Guest53, why do you want to use QT... you know QT is pay to play company now.. right.. Dec 29 16:39:33 isn't it free for basic tasks? Dec 29 16:39:42 any addon is paid right? Dec 29 16:41:05 rcn-ee yes, but since I am at the beginning and need to develop some application for managing a machine through embedded adn from the search that I did, Qt was the best and maybe the easiest. Dec 29 16:41:55 I bought the start-up version, as I was checking the shortest way to get the things done. Dec 29 16:43:17 Guest53, yes qt makes things easy... Dec 29 16:43:58 rcn-ee look at this text https://doc.qt.io/archives/qt-5.8-devicecreation/qtee-preparing-hardware-beaglebone.html Dec 29 16:44:56 rcn-ee it seems because of the yocto project, the beaglebone still is not part of the project. I really like beaglebone... Dec 29 16:45:12 Guest53, that is for the am335x BeagleBone Black.. The BeagleBone AI is based on the am57xx, so that image will not boot on it.. Dec 29 16:46:09 Guest53, why would yocto matter? Someone has to pay QT to develop a base image for the BeagleBone AI.. Dec 29 16:46:30 Guest53, yocto support just makes it much easier for QT to do that.. Dec 29 16:46:57 rcn-ee I agree, but really have no clue what to do. Dec 29 16:47:44 Guest53, after https://ev.kde.org/2020/04/06/changes-in-qt-and-the-kde-free-qt-foundation/ i no longer touch any QT projects... Dec 29 16:48:25 Your best bet is to deal with the QT developers or them directly.. Dec 29 16:48:47 our BeagleBone-AI debian images have QT5 from Debian if you want to develop and use that.. Dec 29 16:50:00 rcn-ee can you please give me more details, as everything is new to me regarding BeagleBone-AI? Dec 29 16:51:44 Guest53, grab the LXQT image from here: https://forum.beagleboard.org/t/debian-10-x-buster-monthly-snapshots/31203 Dec 29 16:52:50 Guest53, am57xx image under: "Debian 10.x (Buster) LXQt Snapshot" it'll boot up into LXQt, which is Qt based window manager.. Dec 29 16:59:55 rcn-ee Thank you! I did it and installed in my BeagleBone AI. Now the problem I have is how to deploy the applications I made in QT to the BeagleBone AI? Dec 29 17:01:11 if it's qt5 based, just copy it over... if it's qt6... that'll be fun. ;) Dec 29 17:02:20 Will the app build on qt6 work in this version of Debian? Dec 29 17:09:36 Guest53, qt6 is way way way too new... https://packages.debian.org/source/experimental/qt6-base Dec 29 17:09:57 thus no released nor testing versions of Debian have qt6 support (today) Dec 29 17:14:48 Hello...I hope you guys figure it out. Dec 29 17:14:56 Qt5 was neat at first. Dec 29 17:15:51 Then, the software got pricey. Anyway, thank you for posting all this info. I am glad I was not wrong about Qt5 and their future of software engineering. Dec 29 17:16:37 rcn-ee thank you! Which way of making applications for BeagleBone AI would be best? (excluding QT) Dec 29 17:16:43 I used to use the Sphinx set of tools also. Then, they switched up and only support 64-bit now. Dec 29 17:17:56 Guest53, i'd assume you can configure QT's tool to build for qt5? Dec 29 17:18:15 set_ and which one you are using now? Dec 29 17:18:52 rcn-ee I am new to QT, had it just for 2-3 days. I need to check. Dec 29 17:20:39 Aw. Oh me, I do not use voice-to-action software right now. I stopped for a bit, e.g. hoping the .org would produce a 64-bit monster! Dec 29 17:22:20 This was it: https://cmusphinx.github.io/ and it ended in 2019. boo! Dec 29 17:23:44 They produce vosk now. Dec 29 17:25:50 Anyway...sorry for interrupting. Dec 29 17:25:59 I got excited again. Dec 29 17:26:18 set_ LOL Dec 29 17:26:42 Seriously, when people chat, iterjections are not always appreciated. Sort of, right? Dec 29 17:27:22 Guest53: There is another tool for creating GUI UX stuff. Dec 29 17:27:33 It is used in Debian. Let me see if I can find it. Dec 29 17:28:04 set_ no as more people help me as better I feel Dec 29 17:32:10 Oh. Okay. I think in the forums for the .org, there was a few posts. Let me see if I can find them. Dec 29 17:33:40 I found one piece of info. for lazarus. Are you familiar w/ that GUI UX interface designer? Dec 29 17:33:57 I am pretty sure they are open source still and freely available. Dec 29 17:38:23 It is free pascal. Oops. I know nothing now. Anyway, that is one. Dec 29 17:38:37 set_ I am new to Linux too... Dec 29 17:39:21 Oh. Nice. I like using the BBAI for tasks. I set up a funny rendition of grabbing peoples' faces in box format w/ a couple libs. Dec 29 17:39:23 I am Windows and .NET developer. Now this project is everything new to me Dec 29 17:39:28 Oh. Dec 29 17:39:31 Okay. Nice! Dec 29 17:40:06 I set up a tensorflow-lite couple of issues for fun too. Dec 29 17:40:19 It works but not w/ LCD support yet. Dec 29 17:40:25 Learning everything at once made me confusing... Dec 29 17:40:34 Ha. Me too! I second that idea. Dec 29 17:40:58 Learning is not the faint of heart. Dec 29 17:41:31 First I was trying to learn the BBAI, then I found QT and I thought that I settled the problem. And now... again Dec 29 17:41:58 Right. Like source, it is loopy. Things reiterate w/ issues and success! Dec 29 17:42:49 Yes, you are right. Dec 29 17:43:10 Stick w/ it. Things change and sometimes things are hard coded into normalcy. I like that 32-bit machines have been around, i.e. even though I have not completely figured them out. I am only one person! Dec 29 17:44:18 The problem in this new environment for me is that I am used on getting the books and doing the work. Dec 29 17:45:12 Right. Linux books, hmm. There are many. The debian handbook may help. There is also Linux based books like study guides for the testing for certs. Dec 29 17:45:35 Here I cannot do it.... the machine is different BBAI, the images are different, and the development is unknown, so pretty out of standards that I used to use. Dec 29 17:46:08 Oh. Well, I think you will figure something out and come out more knowledgeable. Dec 29 17:46:58 If you figure out how to make the LCD work on the BBAI w/ porting vision libs. to them, let this person know, i.e. set_. Dec 29 17:47:29 I got the book for Linux and it is OK, I read it. Done with it. Then I got another problem: If I want to make the GUI app should I get the image with or without graphic (maybe I'm making you laugh but that is when you get from windows) Dec 29 17:48:26 I wired and LCD with BBAI and it is working, put the image that rcn-ee suggested and no problem. Dec 29 17:49:04 The problem that I have now, is how to code for it and deploy on it. Dec 29 17:49:09 Oh. Like rcn-ee says, Qt5 and onward will most likely be pay-to-play. If you can configure it on the AI, I say go for it but I cannot make certain that it will work like w/ the older kernels when Qt5 and 4 were open source. Dec 29 17:49:10 Oh. Dec 29 17:49:42 Nice about the LCD but I am talking about using the GPU. I know nothing about it for now. Dec 29 17:50:01 It is a secret piece to me for whatever reason. Dec 29 17:50:55 Not just signing into the system via LCD and pushing a set of source to it...this is not what I am after. I know that works for the most part. Dec 29 17:51:12 So, are you using pyQt or Qt? Dec 29 17:51:30 The problem (as I see) with BeagleBone AI is that there is now good IDE for developing on it. Dec 29 17:51:38 QT Dec 29 17:51:52 Okay. THe .org is pushing VS Code. Dec 29 17:51:53 It has C++ as language Dec 29 17:51:55 I ht ink. Dec 29 17:51:56 Right. Dec 29 17:52:24 VS Code instead of the older, outdated CLoud9 IDE. Dec 29 17:52:47 I have experience with VS Code since I was using .NET for long time. Is there any tutorial how to use VS Code for BBAI? Dec 29 17:53:30 Yes. Sign in to the BBAI via usb networking and go to your IP Address and the port for the server. Dec 29 17:54:06 Let me check it out. I am sure I can figure it out again. it may be something like 192.168.1.6:3000. Dec 29 17:54:42 Or. Dec 29 17:55:05 192.168.7.2 is for cloud9 Dec 29 17:55:11 If you are using Windows, use the other address, i.e. 192.168.7.2. Dec 29 17:55:19 Cloud9 is being phased out. Dec 29 17:56:10 AWS took it over a while back. Dec 29 17:56:14 Immediately after I login on 192.168.7.2 it opens the cloud9 Dec 29 17:56:23 Hmm. Dec 29 17:56:34 At :3000 ? Dec 29 17:56:46 Try :2000 or :1880. Dec 29 17:56:57 Let me sign in again and try. Dec 29 17:57:15 Guest53, Buster still ships Cloud9... Bullseye we will move to VSCode... Dec 29 17:57:22 Ut oh. Sorry guys. Dec 29 17:57:46 Yes. I have bullseye on my board right now. That must have been it. Dec 29 17:57:54 Guest53, Bullseye still needs a few xorg tweaks for the BBAI, so not ready to release a Bullseye gui update.. Stick with Buster for the BBAI for any Gui... Dec 29 17:58:45 rcn-ee, Can you please send me any suggestion? Dec 29 17:58:46 Oh and sorry to throw around your development so loosely. I know things are not easy to produce when users want it. No issue here. Dec 29 18:36:46 rcn-ee: vscode? hosted on the beaglebone itself? or just interacting with the beaglebone in some way? Dec 29 18:37:51 I suppose it should be possible for a plugin to enable using either the desktop or cloud/web version of vscode to edit and run code on the beaglebone Dec 29 18:39:30 zmatt, yeap... vscode (inside) the beagle, just like cloud9, just uses more resources, but "supported" unlike cloud9 which has been dead since 2017... Dec 29 18:40:21 I didn't immediately see anything for self-hosting the web version of vscode, but I also didn't look very hard Dec 29 18:40:33 zmatt, it's on a checklist requirements, it'll be mostly 'disabled', but 'enabled' on release images.. Dec 29 18:41:04 ew, the desktop version of vscode is an electron app? didn't know that Dec 29 18:41:14 does explain why there's also a web version Dec 29 18:41:43 here's the initial web version.. https://github.com/coder/code-server then microsoft released their browser version, so everyone' been swiching over to microsoft's version.. Dec 29 18:42:12 it run pretty decent on a am335x, but almost everything assumes "arm64" with microsoft extensions... Dec 29 18:43:40 I was just looking for "Remote" in the extensions of vscode, like the plugin of Eclipse Dec 29 18:43:54 yeah, what about https://vscode-eastus.azurewebsites.net/docs/remote/remote-overview ? Dec 29 18:44:30 something like that looks like it should be much more lightweight on the beaglebone Dec 29 18:44:45 Yes, I was reading that Dec 29 18:46:54 there's nothing stopping you from running VSCode on your "desktop" and remote into the Beagle.. (there's a plugin for ssh..) Dec 29 18:47:27 If you run the same version of debian on both, you can use the same gcc-cross to make sure binaries line up.. Dec 29 18:48:09 Yes, this is very good. I hope in near future we will be available to develop gui applications Dec 29 18:49:32 our strategy for gui development was to just develop the qt5 app locally on a pc, then transfer project to bbb and compile it there (using distcc to greatly reduce compile time) Dec 29 19:28:22 is distcc still a thing? Dec 29 19:29:17 Yep. I just saw it again for the second time. Dec 29 19:30:47 They say their build is passing! Dec 29 19:32:05 why would it not be "a thing" ? Dec 29 19:32:44 B/c...I have not uttered those "distcc" words in over three years. Dec 29 19:32:55 I figured they just moved on. Dec 29 19:33:05 ?? Dec 29 19:33:21 so set_ gave up on gentoo 3 years ago then. ;) Dec 29 19:33:28 I moved on. I remember there was a combination of scripts I used to use. Dec 29 19:33:29 Ha. Dec 29 19:33:32 why would the distcc project care about when you last uttered the words :P Dec 29 19:34:00 set_, distcc solves a real world problem... a problem that still exits today... Dec 29 19:34:04 I understand that they do not care but I figured some of the time is when people just stop. Dec 29 19:34:05 Oh. Dec 29 19:34:13 and the solution works very well Dec 29 19:34:16 Speed? Dec 29 19:34:18 just like rsync, git, nano... Dec 29 19:34:22 Aw. Dec 29 19:34:24 Okay. Dec 29 19:34:32 git is handy. Dec 29 19:34:38 software that works and does something people need generally doesn't stop being "a thing" Dec 29 19:34:50 Oh. See, I learned a new thing today. Dec 29 19:35:09 I discovered "ed" the other day... now I love it Dec 29 19:35:16 lol Dec 29 19:35:21 Sometimes, even if it is something that is needed, it sticks around. Dec 29 19:35:34 What is ed? Dec 29 19:36:13 https://en.wikipedia.org/wiki/Ed_(text_editor) Dec 29 19:36:22 Like ED or ed or acronym? Dec 29 19:36:24 Oh. Dec 29 19:36:26 Okay. Dec 29 19:36:43 Text! Editor! Dec 29 19:36:55 set_: a text editor with the dubious honor of having been called "the most user-hostile editor ever created" Dec 29 19:37:14 worse than emacs? Dec 29 19:37:43 I keep trying to find more time to learn emacs but I have faltered in time. Dec 29 19:38:21 I use (not in an expert way) ed, nano, vim, emacs, vscode, etc.. and I consider myself well adjusted (?) Dec 29 19:39:03 There is way to much to learn for using emacs. Ah! I use vim and nano. On my system though, I have to C & P in caution. Dec 29 19:39:39 It is not so P'd well at times. Dec 29 19:40:30 rcn-ee: I really still want to figure out if WebRTC data channels can be exploited to establish communication with https-hosted websites and local devices, to work around the problem that there's no out-of-the-box way to use TLS with local devices but browsers don't allow non-TLS websocket connections to local devices Dec 29 19:41:39 Hmm. Dec 29 19:42:10 So, instead of ws://, one could figure it out to host https:// w/in the ws://? Dec 29 19:42:39 Is websockets still a thing? Dec 29 19:42:51 lol Dec 29 19:43:18 I remember one of my older books but I have not seen anything recently. Is it for intranets and not the www? Dec 29 19:43:36 other way around, they're a PITA to use on intranets Dec 29 19:43:44 Oh. Dec 29 19:43:45 Hmm. Dec 29 19:43:46 ubiquitous on the web Dec 29 19:43:50 Aw. Dec 29 19:45:18 Hmm, so it is like some use it for conveying messages to-and-from ws:// but it cannot hold https:// w/in the websocket for viewing? Dec 29 19:45:21 in general browsers make working with local devices a huge pain... and worse yet, impose restrictions that overall decrease security (by forcing sites that communicate with local devices to use http instead of https) Dec 29 19:45:32 Oh. Dec 29 19:45:44 ehm, you're not making any sense, as usual Dec 29 19:46:05 I am understanding more. I was unaware of devices having only http usage. That is a rip off. Dec 29 19:46:15 I mean... Dec 29 19:46:21 local devices generally can't use https Dec 29 19:46:28 you can't get a cert for a local device Dec 29 19:46:34 One could host a site and use their device on their own hosted site right? Dec 29 19:46:35 Oh. Dec 29 19:46:44 Hmm. Dec 29 19:46:51 So, that causes issues. Dec 29 19:47:07 (my statement isn't completely true, but it's mostly true) Dec 29 19:47:12 I understand. Dec 29 19:47:49 B/c I hosted a site, then put forth some odd backends and upfronts, stacks things, and then controlled a bot via the net. Dec 29 19:47:57 I had a self-made ssl cert. Dec 29 19:48:08 I've arranged for a server here at work to be locally accessible via https, but that required messing with settings in the internet router Dec 29 19:48:36 Aw. Yep. Settings. There are a given grace. What is the deal w/ www3? Dec 29 19:48:47 Are you upset yet? Dec 29 19:48:56 because the router "helpfully" blocks the resolution of domain names that resolve to a local IP address Dec 29 19:49:07 ?? what are you talking about? Dec 29 19:49:13 www3! Dec 29 19:49:22 The Internet v3 Dec 29 19:49:47 Let me get you a common link if you are game... Brb. Dec 29 19:51:36 So, it seems that www3 instead of www2/1 or whatever are for load balancing servers in particular to heavy loads. Dec 29 19:51:43 there's no "internet v3" ... the internet has no versions Dec 29 19:52:04 Okay. Is the Internet not Wide World Web? Dec 29 19:52:08 no Dec 29 19:52:12 Oops. Dec 29 19:52:42 See. I keep learning. It is a miracle to be so wrong continuously and keep learning. Dec 29 19:53:06 web2.0 is mostly a vague marketing buzzword, web3.0 seems to be even more so since it doesn't correspond to any particular technologies afaict Dec 29 19:53:13 @zmatt: That is the first direct answer you gave me, i.e. "no". Dec 29 19:53:29 pretty sure I've given you plenty of direct answers Dec 29 19:53:49 You usually hit me w/ a mallet in the head in your mind and then curse at me. Dec 29 19:53:54 whenever possible, frequently whatever you're asking is too vague or unintelligible to give direct answers :P Dec 29 19:53:56 Ha. Dec 29 19:54:29 I understand that my technicalities are not to the point of your verbage and usage. Dec 29 19:54:36 I keep trying! Dec 29 19:55:16 Trust me, being in a field filled w/ high grass does not turn me into a technical person. I promise. Dec 29 19:56:01 If I could just set up what I choose in that darn field, I could learn a lot... Dec 29 19:56:12 the web has no "versions" anyway, it is developed continually in an organic way, with new technologies and ideas being introduced all the time Dec 29 19:56:21 When the BBB breaks, when it is power hungry, and when or how it is surviving weather. Dec 29 19:56:54 Oh. Dec 29 19:57:05 Okay. So, a build of many to one common thing! Dec 29 19:58:29 So, thank you for the "no". I appreciate the courtesy. Now, onto goofin' off w/ grasses as far as the eye can see and w/out the BBB. NO! Dec 29 19:58:49 the "web" is a loose collection of technologies, albeit with HTTP and HTML at its core (from its inception in 1990 all the way till today) Dec 29 19:59:28 (that also highlights that the Web is not the Internet: the internet is way older than that!) Dec 29 19:59:45 B/c of networks? Dec 29 20:00:13 that's what the internet is... a big network Dec 29 20:00:41 So, long strands connected buildings, work spaces, and homes before the day the Web took its justice to serve the population? Dec 29 20:01:23 "Justice of the web!" Dec 29 20:02:08 the web exists on top of the internet, depends on it Dec 29 20:03:37 Hmm. This is too technical, i.e. as I say. I think, well. Okay. You are right. So, a partical or atom is an atom. W/ power these atoms or at least part of them turn active. Right. Dec 29 20:03:56 the web consists of documents, made available by webservers, with the ability for one document to link to other documents hosted on the same or other webservers, thus linking all these documents together in a... world wide web Dec 29 20:04:18 the internet is what enables you to communicate with these webservers in the first place Dec 29 20:04:54 it carries your request for a document to the webserver, and carries that document back to you Dec 29 20:04:56 So, the network being held is the Internet and the WWW is all the pages, online available sites, and the "modern" technologies. Dec 29 20:05:11 Like www3. Dec 29 20:05:23 www3 is a meaningless buzzword Dec 29 20:05:28 Oh. Dec 29 20:05:30 Okay. Dec 29 20:05:41 it doesn't correspond to any actual technology, it's not clear to me it even corresponds to any meaningful idea Dec 29 20:05:51 Well, people in the news were discussing it like it meant the world to them. Dec 29 20:06:00 I cannot find the article right now. Dec 29 20:06:14 set_, those same people that say 5G will cure cancer... it's marketting... Dec 29 20:06:34 5G Cures Cancer? Dang, time to get implants! Dec 29 20:07:03 I know you guys know a lot. I am not discrediting you all. Dec 29 20:07:22 I am just thinking that some things mean the same thing b/c of what it actually is currently. Dec 29 20:07:26 zmatt, wonder if we did... .beagleboard.org -> https://blog.heckel.io/2018/08/05/issuing-lets-encrypt-certificates-for-65000-internal-servers/ Dec 29 20:09:02 rcn-ee: two problems with this: 1. the beaglebone needs to have internet access to allow you to update the dns record to its local IP Dec 29 20:09:28 2. many home internet routers block DNS records that resolve to local IPs Dec 29 20:09:48 3. evil people might end up using your beagle... Dec 29 20:09:54 not really Dec 29 20:10:12 this doesn't give anyone remote access to the beaglebone Dec 29 20:11:12 you do have the problem of how to authenticate the beaglebone though, so you may need to issue initial credentials during production, or use the device's public key (or hash thereof) instead of so that it can use the private key to authenticate itself to update the record Dec 29 20:11:21 wow, this hdmi/lcd has speakers... playing a youtube video on a am335x, audio actually came alive.. Dec 29 20:11:26 that also avoids the problem that I've seen two beaglebones with the same serial number ;) Dec 29 20:12:17 about 0.2 frames per second... Dec 29 20:13:07 the browser would also need to _find_ the beaglebone, but if the beaglebone has internet access then beagleboard.org could assist with that as well (e.g. share the hostnames of beaglebones that are on the same IPv4 address or the same IPv6 /64 prefix as the client) Dec 29 20:13:17 zmatt, would gopher:// work for your app? ;) Dec 29 20:13:22 lol Dec 29 20:13:42 idk think gopher got any tls extensions.. Dec 29 20:13:48 but 1 and 2 are the big problem... the requirement for internet access, and the fact that it just doesn't work Dec 29 20:14:06 yeah, 'internet access' makes it not work... at all.. Dec 29 20:14:07 I mean, nothing stops you from running gopher over tls... tls doesn't care what protocol is being run inside it Dec 29 20:14:48 ah, chrome needs an extension for gopher... firefox works thou.. Dec 29 20:16:30 there are ways to avoid internet access, e.g. issue the cert during production and then create a dns record that points to the device's link-local IPv6 address, but that's not really useful since the cert is only valid for 90 days, and again routers tend to block dns records that resolve to local IP addresses Dec 29 20:16:48 and the image could be 2 years old.. Dec 29 20:16:54 Right. One would have to pay. Dec 29 20:16:55 the TLS route is really only possible for devices that have internet access Dec 29 20:17:49 Well, it seems simple. Make everyone have internet! Dec 29 20:18:10 and routers that either do not block those DNS records or where the user adds an exception in their internet router for that particular domain name (which is what I did to enable TLS to a local device here) Dec 29 20:18:26 It is a catch-22. Dec 29 20:18:56 rcn-ee: WebRTC data channels is my only hope, because that uses TLS with self-signed certs that are provided via javascript, since it's explicitly used to make client-to-client connections Dec 29 20:19:11 Anyway, fun time is over. YOu guys figure something out. Dec 29 20:20:26 rcn-ee: but the spec is spread out over lots of RFCs and I haven't quite figured out what exactly is needed to make it work with local devices without internet access Dec 29 20:20:54 Host! Dec 29 20:20:54 it's also been a bit since I dug into it, so I don't quite remember my conclusions so far, but iirc my impression was that it *should* be possible Dec 29 20:21:31 if people are willing, HOst and sign up like a regular user would do so... Dec 29 20:21:57 set_: what are you rambling about? Dec 29 20:23:15 Host a website and have people sign into it as users to provide credentials. Dec 29 20:23:36 That way, you can grant access to users. Dec 29 20:24:59 It is a pain in the whatch-ma-call-it but that way, if people are providing support (real support for the .org), one could sign in like usual to the site as a user to get access. Dec 29 20:27:07 Sort of like you guys already did but in a different way. User experience? Dec 29 20:27:23 ???? Dec 29 20:27:42 nothing you're saying is related to the problem being discussed Dec 29 20:28:15 Okay. No issue. Dec 29 20:28:16 Sorry. Dec 29 20:28:23 I misunderstood as usual. Dec 29 20:28:29 Off to roam the grasses! Dec 29 23:10:28 I'm curious about this: using buildroot, when, e.g. `make beaglebone_defconfig`, is this line making that rule? https://github.com/beagleboard/buildroot/blob/master/Makefile#L1025 Dec 29 23:11:36 *not "making" the rule, I meant like a macro Dec 29 23:20:16 I think it does Dec 30 00:58:28 Yes. Dec 30 00:59:38 I am reading the posted notes on the forums. Yes. Dec 30 00:59:48 Good to know type of notes they are now. Dec 30 00:59:54 Hmm. Dec 30 01:23:34 Where is the 2v negative of the fet going? https://imgur.com/a/4WQ1AzE ? Dec 30 01:24:44 I am having a hard time describing to myself the purpose of the 2v negativity. Dec 30 01:25:40 Is it supposed to just float? Dec 30 01:26:51 This may be better: https://imgur.com/jlklDAY Dec 30 01:31:26 2v as reference, they are using the opamps as comparators Dec 30 01:33:31 Aw. So, it is just the voltage going, if measured, at that point. Dec 30 01:34:25 For some reason, I was unaware of negative being 2v or 2v being a negative reference at any point. Dec 30 01:34:56 Hmm. Just when you think it is safe to have a negative. Dec 30 01:35:05 Bzzt. Dec 30 01:35:15 CoffeeBreakfast: Thank you. Dec 30 01:35:42 2v positive Dec 30 01:35:50 Oh. Sheesh. Dec 30 01:36:19 Now I am completely confused. So, 2v is positive. I understand but the opamp states it being negative. Dec 30 01:37:02 the " - " symbol means non-inverting input Dec 30 01:37:07 Oh. Okay. Dec 30 01:37:11 Oops. Dec 30 01:37:26 Is that standard for opamps? Dec 30 01:37:50 I mean... Dec 30 01:38:05 Is a non-inversion input standard for opamps? Dec 30 01:39:38 I thought they worked like this idea: 1) If the light is too bright or too dim, the opamp kicks on. 2) If that is opposite, then the opamp reserves its voltage. Dec 30 01:40:10 I might as well look it up again. Dec 30 01:40:57 Well, I am way off. Dec 30 01:41:12 I should have studied more. Argh/blah/cough. Dec 30 01:41:59 Now, I am wondering what piece of circuitry handles the light for turning on/off the amplitude. Dec 30 01:43:13 Hey, I found a nice piece on opamps: https://ocw.mit.edu/courses/electrical-engineering-and-computer-science/6-071j-introduction-to-electronics-signals-and-measurement-spring-2006/lecture-notes/22_op_amps1.pdf . Dec 30 01:45:34 Read set_, read! Dec 30 01:49:41 Hey, CoffeeBreakfast: Um, do you know of a _______. forget it. I will keep searching. Dec 30 01:53:52 Argh, optocouplers. Dec 30 01:54:05 I am gettin' rusty and rigid. Dec 30 01:59:38 I was thinking optocoupler when you said opamp. **** ENDING LOGGING AT Thu Dec 30 02:59:56 2021