The Developer Guy

New year, new plans! If you don't know me yet: hi! I'm Béla, The Developer Guy. I teach, code and make fun little #opensource projects. (most of them involve some electronics, but not all of them) You can find devlogs and/or tutorials about them on my YouTube channel: youtube.com/thedeveloperguy If you like my designs, you can download the gerbers or order one too here: pcbway.com/project/member… (I don't plan to sell them on Tindie) Also, a live, online Python quickstart course is on its way, it will launch in this spring. 2023 is finally over. I say finally, because it was a terrible year for me, with a lot of downs. The only ups were You guys. I met some fantastic people here, some of you helped with ideas or found some errors in my design. Thanks! I don't check my follower count very often, and I was really surprised to see: over 1100 people thought these stuff are cool. And you all deserve some content/entertainment! My 2 mains are Python and Embedded C. Totally different worlds, so sorry if one type of content is more dominant from time to time, I try to balance things. Last year I started working on Stonks, a crypto-mock project. You can get it here: github.com/the-developer-… My goal is to make a practical tutorial project, without all the ultra-beginner stuff. A full-featured, tkinter based GUI, with charts, realtime "real" trading (the prices are fetched from coingecko!) to have a sane goal. And the electronics. Sheesh, I have too many projects! Some of them are production-ready, like the li-ion charger or USB-C breakout, but the others need some work. Lampy, my 10W dual-tone USB lamp is more like a product, feature requests are welcome. Anyone can buy a dimmable video lamp, where is the fun is I just buy one? (also go buy one with open firmware) But the STM32Duinos are practical jokes and tools in the meantime. It's 2024, even Arduino switched to all-32bit. Rest in peace, AVR8, I loved you all, but time flies! But the hobby scene tends to stuck in the past, because there are tons of tutorials for the old boards, and the new stuff is scary, right? Until you get a decent quickstart tutorial, like the "STM32 demystified" series. This is a "conversion therapy" from Arduino to more professional stuff, but with detailed explanation. The playlist is here: youtube.com/playlist?list=… I will have some more projects too, so if you follow me, expect similar stuff in the future. Also, as a small channel, I struggle a LOT. Maybe YouTube is dying, maybe just the topic is not so popular, maybe the format is wrong. Educational stuff is not compatible with Shorts/TikTok, but making an 1-hour video essay is also impractical for these kinds of stuff. the 5-15 minutes is just not trendy, but I try to make value, not be trendy. In the meantime my videos don't pop up enough in recommendation (or recommended after the wrong type of videos), so you can help a lot by sharing them. I do have a Patreon: patreon.com/thedeveloperguy - but only 2 people are in the paid section and I don't really tell you "go throw some cash in there", because I'll try to change the pace. I hate having a tight schedule and ship a video every week. I tried that, but this type of content is not so easy to make. I don't have an editor (and couldn't afford to pay one at this phase anyway), I'm a one-man-army. YouTube penalizes this, but I prefer making factually correct, enjoyable videos, and release when it's actually ready to be published. I saw Nile Red's latest "purple gold" video and gave me hope. Of course I won't get 9 million views in 10 days, but I hope there is place for creators with slower pace. Also, desperately open for collabs! I couldn't find a fellow maker with similar interests, so ping me if you want to make some stuff together! If you have any remarks, the comment section is open. Have a happy, and successful 2024! 🫡

@blind_via We have the technology FFS! If automatic soldering iron tip cleaners exist, why not tweezer cleaners?

Tweezers that never get stick from flux

@zackslab @i2cjak Even grocery stores sell brass wool tip cleaner. There’s literally 0 reason left for sponges.

still my all time fav @i2cjak meme

@mfranz_on Yeah, connect it to a resistive load (stay safe with at least 100 Ohm) and let it drain to 0V.

I am pretty sure that a LiPo battery should have this shape. Should I try to connect it in anyway?

@BreakingTaps Just make a dedicated prototype PCB and say goodbye to loose connections.

Send help 🫠

@i2cjak If I were rich, I’d have a patio with a replica of my indoor desk.

i’ve been staying inside a lot more recently… i feel remarkably less energized and positive. this is after being indoors on my computer for 12 hrs a day for the past 6 months. if i am doing computer work, i use three monitors in the dark inside. so bad.

@tloriato_ @geerlingguy @plex @jellyfin It doesn’t worth THAT much, that’s the point. (And I do pay for some OSS sw of my choice)

@geerlingguy @plex @jellyfin Good products need to be rewarded. OSS community is so toxic about people making money, that's why nothing gets funded and projects archived.

Dump @plex, use @jellyfin

@FrankBr05713205 Oh, I almost worked on a fuse-ECU. You know, a piece of metal, used for decades is too unreliable! Let’s replace it with a computer! Thank God I quit that job.

As a longtime automotive technician, I have noticed through the years that almost every time manufacturers come up with new and improved it ends up costing the car owner more money. Here is one example. A simple thermostat, which served us fine for years has now been replaced with a water control valve that is actuated by the car’s computer. So we went from a part that cost around $15 to one that now is $250 and up.

@i2cjak True DIPheads had a choice since forever.

microchip has released a NEW ARM Cortex-M0+ microcontroller in a DIP package? PIC32CM6408PL10028 Finally all of you DIP-cels can move to a modern chip architecture

@DAKKADAKKA1 Most headset-standalone (Quest 2/3) games are too casual for a VR headset price tag. Meanwhile, most kickass-looking VR games need a beast PC to run. Just too expensive for its niche. I bought it to play Beat Saber, and that's it.

It’s simply too expensive for a regular person to buy a VR headset. Especially a working family.

@GalMihaly Úgy hallottam, rövid volt a bevezetési határidő. Ha még emlékszünk, a mostani kézzel adogatós sem evett meg mindent, úgyhogy előbb egy alap, de működő verziót csináltak, és így lett idejük ezt piacra dobható szintre kalapálni.

Egy kérdésem van: miért nem az összes ilyen? 💁🏽‍♂️

Yeah or you could just read the the back of the board. I'm so tired of AI bros. So very tired.

@no1089 @yacineMTB I’ve seen way too many people use I2C over long distances (like connecting stuff in different rooms) because “it was working for me”.

@yacineMTB Uh… yes. Define long though. Twisted pair? Do you have termination resistors? UART should be much more stable than i2C however - SPI/I2C was not designed for off-board use.

Could my UART be getting errors because my cables are too long...?

@yacineMTB “It should easily do up to 500ft!” - every hobbyist who can’t even understand the difference between RS-232 and 3.3V UART

@TenativeTangent @yacineMTB True, I was lazy to look up the speeling of “transceiver” (I hate this word). And I wasn’t joking, I tried it back in 2019 with the TLE6250.

@thembeddevguy @yacineMTB Just in case you’re not joking, a level shifter and a differential transceiver are not the same thing.

CANbus is retarded Just use UART Or, if your MCU is dog shit, I guess use i2c

@alphafox Just burn it.

How to remove a tick (from existence): 🙌

@iniemohk Any MMO? 5v5 arena hero shooters? Almost any gacha?

Someone should make a video game that is actively harmful, not like its propaganda for dangerous opinions but just simply playing it somehow measurably deteriorates your physical/mental/emotional health like just booting it up and playing for an hour guarantees you ruin your day

@FrankBr05713205 As our material science lab teacher said: the look of a 400 °C and room temperature piece of aluminium is the same, so don't just grab anything.

I think common sense is on life-support! I teach high school auto shop and because of a burn one of my students received, I had to place this warning sign on my oxygen acetylene cutting torch. Using this cutting torch, I had just cut a rather large bolt off of a steering box and the hot nut fell on the floor. A student reached down with his bare hands and picked up that nut, and of course burned himself. He then yelled at me for not telling him that that nut would be hot. I would have thought that the fact that I just cut it off with a torch and it was on the ground still glowing red would be a clue that it would be hot. So now I put a sign on the torch and I spend some time during safety training to tell them to not pick up a glowing red nut off of the floor!

@VinciRSS It was fukken expesive back then (I couldn’t afford mobile internet plan, I could barely get one used PDA phone) but reading emails was surely cutting edge back then. What I miss is this main screen. No bullshit. No spam notifications. Pure useful info.

@thembeddevguy I think it also had usecases for businessmen. My dad used it a lot to check e-mail, browse the internet and so on. It was mobile internet early access.

Playing Jawbreaker on my dads PDA even before smartphones existed was 2nd peak experience I had on a mobile phone.

@audrey_vuetaz Lol, they gave bottom-shelf Temu wireless microphones! (They do sound surprisingly well for the €9 price tag, but come on!)

Il y a quelques jours, j’ai reçu de la part de la Commission européenne, un kit d’influenceurs pour promouvoir leur campagne #protectwhatmatters Le problème c’est que le micro envoyé est en lightning… quand l’UE impose le chargeur universel en … USB-C