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Electronics Course (45 episodes, YouTube)

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Re: Electronics Course (45 episodes, YouTube)

#41

Post by goodbyesf »

jcutrell wrote: post #27
friend_and_foe wrote: post #13

Earlier quoted context omitted.

No, the one I was looking for was a west African woman in Africa, teaching people to learn to read English from scratch.

It’s so disheartening that you can have this much of a laser focused understanding of what you’re looking for and not be able to find it.

In the past, you could type 'west African woman learn english from scratch' in youtube or google and you'd get it. Now I bet a third of the results is nonsense and the two thirds are probably news related results on west africa or english west african political relations, history, etc and probably some ads for rosetta stone.

It's unbelievable how shallow and narrow and bad google/youtube search has become. It didn't happen over night. Year by year, little by litte, it got worse and worse.

Re: Electronics Course (45 episodes, YouTube)

#42

Post by [deleted] »

peteforde wrote: post #22
chongli wrote: post #12

Earlier quoted context omitted.

Do I need this level of depth to get a microcontroller to make a stepper motor do what I want to do (whatever that may be) Dave over at the EEVBlog likes to draw a distinction here. He distinguishes between people who want to learn electronics (build power supplies, radios), that is, analog circuits, from people who want put together Arduino projects. He refers to the latter as more of embedded programming rather tha…

Possibly OT and possibly triggering, but I had to stop watching Dave's videos because he matches my personal definition of giant gatekeeping asshole. I have learned a ton from him over the years, but when you watch something like his video about Flux, it's hard not to feel a little gross. This is subjective, but when you spend a lot of time making sweeping generalizations and then quite literally read the fawning com…

[deleted]

Re: Electronics Course (45 episodes, YouTube)

#43

Post by sheepshear »

peteforde wrote: post #22
chongli wrote: post #12

Earlier quoted context omitted.

Do I need this level of depth to get a microcontroller to make a stepper motor do what I want to do (whatever that may be) Dave over at the EEVBlog likes to draw a distinction here. He distinguishes between people who want to learn electronics (build power supplies, radios), that is, analog circuits, from people who want put together Arduino projects. He refers to the latter as more of embedded programming rather tha…

Possibly OT and possibly triggering, but I had to stop watching Dave's videos because he matches my personal definition of giant gatekeeping asshole. I have learned a ton from him over the years, but when you watch something like his video about Flux, it's hard not to feel a little gross. This is subjective, but when you spend a lot of time making sweeping generalizations and then quite literally read the fawning com…

Whenever Dave says "a real X", he's referring to a specialized role at a company. It's not a dig at hobbyists.

Re: Electronics Course (45 episodes, YouTube)

#44

Post by peteforde »

chongli wrote: post #38
peteforde wrote: post #37

Earlier quoted context omitted.

I respect your reply. What follows isn't arguing against what you said. I see a parallel between the Arduino/Adafruit folks and the people who go through developer bootcamps. It is extremely ill advised to make sweeping statements about bootcamp grads which might imply a shallow depth of understanding or troubleshooting capacity, because so many people will get very upset about your gatekeeping. That vibe hasn't made…

One of the biggest challenges with electronics is that the abstractions are leaky. We see this as well sometimes in software. You may be writing a project in C++ and you keep getting segmentation faults and other memory errors, so you need to know something about assembly language and the computer's memory architecture if you want to be most effective at troubleshooting these issues. At another level of abstraction,…

I've really enjoyed this exchange. I come to HN to have my thoughts provoked. Thank you.

One of the most shocking things (no pun initially intended) about learning electronics [as someone who has spent absurd amounts of time tweaking the user experience of interacting with text input elements] is the cold realization that you have to manually handle switch bounce. Because physics.

Wait, I have to think about how tiny bits of widget bounce when they come into contact with each other? Every button and every encoder? You'be got to be kidding me.

And so you set out on the dark road as you first wonder WTF is going on with your counter, then you start tracking the time between pulses. Then you learn about hardware interrupts and state machines and oscilloscopes. Then you learn about RC and Schottky diodes and soon, hex inverters.

Would I benefit from a two hour lecture about the math behind RC calculations? It might be interesting, but at some point if you pull enough yarn out of the sweater, it stops keeping you warm.

I have always really enjoyed clever and/or obsessive answers to "describe what happens when you type a URL into your browser". If someone starts with the mechanical behaviour of a cherry switch before talking about the USB protocol, is this not the free jazz of computer science?

Is it not our "The Aristocrats"?

Re: Electronics Course (45 episodes, YouTube)

#46

Post by friend_and_foe »

news_hacker wrote: post #34
jcutrell wrote: post #27

Earlier quoted context omitted.

It’s so disheartening that you can have this much of a laser focused understanding of what you’re looking for and not be able to find it.

Wonder if they could use Google Takeout [1] to export all their YouTube data, and then try to search through the history data. [1] https://takeout.google.com/

Well, I don't use a google account and use invidious and piped as proxies, so that's a no go for me.

It shouldn't be this hard to find something this specific on a video host with the worlds most powerful search engine bedded into it. It's gotten to the point where I archive and store links for anything I might want to find later, but I found this before I was of that mindset and I've wanted to share it with people. When search rot is worse than link rot there's a big problem.

Re: Electronics Course (45 episodes, YouTube)

#47

Post by friend_and_foe »

olyjohn wrote: post #39
jcutrell wrote: post #27

Earlier quoted context omitted.

It’s so disheartening that you can have this much of a laser focused understanding of what you’re looking for and not be able to find it.

Because the search isn't to help you find what you want anymore, it's to help you find what they want you to watch.

It's unfortunate. Think how powerful such a channel is, people can teach themselves how to read at a whim. Nope, its hidden behind politically charged nonsense for some reason. You can't search stuff about black people or African people anymore without getting a bunch of speech giving grifters, I want this fantastic woman who teaches illiterate underprivileged women how to read because she's a fantastic teacher but all I get is overpriviledged women lecturing and propagandizing. The irony of it is ridiculous.

Re: Electronics Course (45 episodes, YouTube)

#48

Post by friend_and_foe »

goodbyesf wrote: post #41
jcutrell wrote: post #27

Earlier quoted context omitted.

It’s so disheartening that you can have this much of a laser focused understanding of what you’re looking for and not be able to find it.

In the past, you could type 'west African woman learn english from scratch' in youtube or google and you'd get it. Now I bet a third of the results is nonsense and the two thirds are probably news related results on west africa or english west african political relations, history, etc and probably some ads for rosetta stone. It's unbelievable how shallow and narrow and bad google/youtube search has become. It didn't…

Lol I tried searching those exact keywords in google and this thread is like the 5th result, but still no dice on the actual target. I wonder how many west African women teach English from scratch on YouTube.

Re: Electronics Course (45 episodes, YouTube)

#49

Post by pizzaknife »

sheepshear wrote: post #26
pizzaknife wrote: post #14

Earlier quoted context omitted.

im admittedly embarrassed to mention it because I know its very rudimentary but here goes - small solar array //and// an exercise bike transformed into a generator - both going to same battery store - stretch goal: generation and draw telemetry dashboard. What will it power you might ask? automated garden system (water delivery essentially), a nintendo switch and accompanying TV/peripherals. "Why a stationary bike?"…

Not sure this YouTube series is the right fit for your project. Razavi's course is focused on signal processing (for future integrated circuit designers), whereas your project is power processing. Quite different approaches. The only comparable academic alternative that comes to mind is maybe CU Boulder on Coursera, which covers at least some of your project. I'm not conversant enough with hobbyist-oriented resources…

Thanks for this feedback! I admittedly am not sure, to answer your last question. I am approaching it as one of those "I will know it, when I get there" sort of thing - example: i have replaced (successfully!) individual gears within a 900cc inline 4 motorcycle engine, I have performed the replacement of many different systems / components to home HVAC and larger appliances (without any formal training - some of these endeavors took longer than the aforementioned motorcycle transmission work, due to lack of instruction/schematic access). Would I do these things again? Absolutely not! But I'm a little stubborn as I will try and complete something to best of my abilities and will either reach a cognitive or personal initiative limit.

Re: Electronics Course (45 episodes, YouTube)

#50

Post by sheepshear »

pizzaknife wrote: post #49
sheepshear wrote: post #26

Earlier quoted context omitted.

Not sure this YouTube series is the right fit for your project. Razavi's course is focused on signal processing (for future integrated circuit designers), whereas your project is power processing. Quite different approaches. The only comparable academic alternative that comes to mind is maybe CU Boulder on Coursera, which covers at least some of your project. I'm not conversant enough with hobbyist-oriented resources…

Thanks for this feedback! I admittedly am not sure, to answer your last question. I am approaching it as one of those "I will know it, when I get there" sort of thing - example: i have replaced (successfully!) individual gears within a 900cc inline 4 motorcycle engine, I have performed the replacement of many different systems / components to home HVAC and larger appliances (without any formal training - some of thes…

Academic resources will never get to a useful punchline. Maybe try a hands-on course like this for general electronics and PCBs https://youtu.be/aqVgYasrBs0

Avoid lithium ion batteries. Use a deep discharge lead acid battery instead.

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