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| I find "programming" a constant distraction from electronics in some "tutorials" |
| << < (8/10) > >> |
| greenpossum:
Bah I used motor, acetylene flame and Fresnel lens. 🤣 |
| steviefaux:
I get your point. A good idea would be for people to say "If you're not interesting in the programming side, click here. Although you might struggle without it" but at least they give the option to skip. It's a lot like forums. I thought it was just me but others have said the same. You ask a question and would like an answer, the angry rant can come at the end. So you ask How do I do A, I know I can do it other ways but how would I do it this way. And annoyingly get "You shouldn't be doing it that way you should be doing it this way blah blah". It's annoying. Just answer my question first then added "But, really you should be doing it this way". Perfect example was my question about plaster powder recently. In the UK we have a shortage but I still need to plaster my small room at some point so am perfectly entitled to buy some. So I grabbed some bags before they all disappeared again. I then had a thought, the powder has a end of life date, what if I put it in a air time bucket, would it mean the plaster lasts longer. So I asked this simple question. The first response was roughly "Why are you buying the plaster now if not using it straight away. There are some of us unable to complete jobs because people like you are buying the plaster up when you're not about to do a job. Don't buy the plaster until you're ready to do the job". >:( Answer my question first THEN have your rant. Thankfully someone did with "It wouldn't work because as you put the powder in the bucket, moisture will also be trapped in the airtight seal which will still make the plaster go off". Simple. I'm an IT engineer and you see it a lot in my profession, people wondering off instead of sticking to the topic. |
| bobcat2000:
You can skip the first 10 - 20 pages from google. Google shows you the most popular topics. Start from page 20, you may find what you are looking for. It depends on how you search google. |
| rstofer:
--- Quote from: steviefaux on September 24, 2020, 04:09:53 pm --- It's a lot like forums. I thought it was just me but others have said the same. You ask a question and would like an answer, the angry rant can come at the end. So you ask How do I do A, I know I can do it other ways but how would I do it this way. And annoyingly get "You shouldn't be doing it that way you should be doing it this way blah blah". --- End quote --- Probably because most of us want to get something working while still young enough to use it. There's a reason that almost every project seems to involve an Arduino and that is because it interfaces well with the world and the user. In the OP, the device was CHOSEN to be an AD9833 knowing, actually knowing, that it has to be controlled via a 3 wire interface with a protocol like SPI. Is there some analog way to create waveforms? Sure! But it won't use the AD9833. If the device choice is cast in stone, it will be controlled by a uC. Arduino or 'other' is another choice but it's likely that the Arduino already has a library. Get the project working in the shortest amount of time with the least amount of effort. That's the plan! The electrical part of the project is trivial but the device control and user interface are not. For a decent interface, figure a couple of dozen SSI chips (to handle rotary encoders, LCD display, etc, and maybe more but you would still wind up building the better portion of a CPU in order to handle the SPI part. Could this get to 100 SSI chips? I wouldn't be surprised! It depends on the features. Personally, I gave up wire-wrap projects a long time back. Code is so much easier to change. Modern projects enjoy feature creep. We can do things with uCs that simply weren't possible 50 years ago, The cost of the performance enhancement and feature creep is code. Lots and lots of code. The code describes the features of the project, the electrical schematics say nothing. Of course the code is presented early! It's the only thing that matters. |
| vk6zgo:
--- Quote from: greenpossum on September 24, 2020, 06:07:56 am ---Bah I used motor, acetylene flame and Fresnel lens. 🤣 --- End quote --- In 1971, I visited the lighthouse near John O'Groats in Scotland. To my amazement, the lamp was an oil burning one, & the light was rotated by a clockwork mechanism. A weight was wound up from the bottom of the tower each day, & the mechanism rotated the lamp all night. At the time, most Oz lamps were either electric or gas operated. What the heck! It worked, & well, too! |
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