| General > General Technical Chat |
| Software guys, please, no. |
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| coppercone2:
--- Quote from: nigelwright7557 on September 18, 2022, 10:49:01 pm --- --- Quote from: coppercone2 on September 18, 2022, 10:32:58 pm --- I am waiting for a circuit that uses atmega connected to mains because someone figured out how to get it to short out to make the correct passive component. --- End quote --- I was poking mains through a 390K resistor into a PIC 40 years ago. Its not so simple with newer PIC's. If the pin does A2D then it doesn't have the same protection as standard i/o pins. --- End quote --- you misunder stood my idea. The MCU is good for everything, including using as a base for a DIY carbon resistor, by gross over power. That way you use another PIC with 'fuses set' to 390K instead of the 390K resistor (which software developers might be allergic to) to power the mains connected MCU. I would suggest something made with a pencil, but since they went paperless, resistor options are limited now >:D |
| pcprogrammer:
--- Quote from: eti on September 18, 2022, 11:25:37 pm ---Invest some days in watching Dave’s videos - ALL of them if you wish - and learning about this lovely man. He’s a kind, witty and utterly brilliant man. He’s also a millionaire, and you don’t become a millionaire from being stupid (unless you perform a heist). --- End quote --- Being a millionaire has nothing to do with being brilliant. There are lots of millionaires that are not to bright. Some are born into money, some win the lottery, some just have a loud mouth and bully themselves to the top, some bought good stock when they had the opportunity to do so and the money made itself, etc. So the last part of your statement has no barring on his actual skills. For the rest I have no idea what his capabilities are. Have seen a couple of his videos and they are easy to watch, but it did not showed me that he is brilliant, and I don't care about it either way. But hooking up a led to a gpio without a resistor to limit the current to me is stupid. Even though judging from the comments (did not watch the video) he used PWM with a 50% ratio if something fails and the gpio gets stuck on either high or low both the led and the gpio might get fried. And then making a video about it to make ignorant people think it is a proper way to do so, to me is plain stupid and irresponsible. But as I did not watch the video, I can't say if this is actually the case. Since different types of leds have different forward voltages using one with a lower voltage might blow things up, and watchers that don't know these things might try that and be disappointed and get angry. Or try it with a different MCU that can't handle it. You know, to me irresponsible. You can be a brilliant software developer, but when you know shit about hardware, then don't go telling other people wrong things about how hardware can be done. But again I don't know what his knowledge about hardware is. |
| Black Phoenix:
--- Quote from: pcprogrammer on September 18, 2022, 06:26:46 pm ---And that is why I gave up on youtube. It is mostly about entertainment and has little substance. And even though some are better to watch, how many commodore 64, trs-80, apple II repair videos, or I made this gadget or wrote this software or checked out this scope can you watch. To me it gets boring after a while, and for learning I rather have a proper datasheet to figure it out myself. --- End quote --- Currently I turned into commercial/residential Instalations with a mix of solar and EV charging plus PLC programming. Last time I touch PLC ladder style programming was way back in 2010 and I may need in a project in the future. Need to refresh myself. |
| eti:
--- Quote from: pcprogrammer on September 19, 2022, 05:26:37 am --- --- Quote from: eti on September 18, 2022, 11:25:37 pm ---Invest some days in watching Dave’s videos - ALL of them if you wish - and learning about this lovely man. He’s a kind, witty and utterly brilliant man. He’s also a millionaire, and you don’t become a millionaire from being stupid (unless you perform a heist). --- End quote --- Being a millionaire has nothing to do with being brilliant. There are lots of millionaires that are not to bright. Some are born into money, some win the lottery, some just have a loud mouth and bully themselves to the top, some bought good stock when they had the opportunity to do so and the money made itself, etc. So the last part of your statement has no barring on his actual skills. For the rest I have no idea what his capabilities are. Have seen a couple of his videos and they are easy to watch, but it did not showed me that he is brilliant, and I don't care about it either way. But hooking up a led to a gpio without a resistor to limit the current to me is stupid. Even though judging from the comments (did not watch the video) he used PWM with a 50% ratio if something fails and the gpio gets stuck on either high or low both the led and the gpio might get fried. And then making a video about it to make ignorant people think it is a proper way to do so, to me is plain stupid and irresponsible. But as I did not watch the video, I can't say if this is actually the case. Since different types of leds have different forward voltages using one with a lower voltage might blow things up, and watchers that don't know these things might try that and be disappointed and get angry. Or try it with a different MCU that can't handle it. You know, to me irresponsible. You can be a brilliant software developer, but when you know shit about hardware, then don't go telling other people wrong things about how hardware can be done. But again I don't know what his knowledge about hardware is. --- End quote --- The general theme of your reply, is “but then again I don’t know”. Let’s take that and you not knowing anything about Dave P., and making character judgements based on wild speculation and ignorance, and summarise that you just couldn’t resist judging him. This is called “gossip”, and no one likes a gossip. |
| pcprogrammer:
If you properly read what I wrote, you would see that I did not judge him, but judged that he made a video with bad information. I don't know him personally, and my guess is that you don't either, so neither of us can say anything definitive about him. So no gossip here, just an observation about his video delivering bad information, and since I did not watch it I'm relying on information others wrote here. That might be bad, but that is what it is. |
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