General > General Technical Chat
Software guys, please, no.
coppercone2:
you don't need a resistor for the base of the transistor ;D
how about parallel GPIO pins for running that 5V relay at 3.3V right from the MCU ?? it clicks! ;)
that little square can do anything! discrete components are obsolete, just throw more microprocessors at the problem. Who needs to have a buffer when you can just parallel some atmegas??
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. Universal building block if you know how to burn it out properly. If 500V is applied between pins 3 and 15 you can get a 30kohm resistor roughly 30% of the time.
nigelwright7557:
--- Quote from: Nominal Animal on September 18, 2022, 02:18:52 am ---
You know, the person who copy-pastes code off the web, until something compiles and passes through the minimal test. In the open source world, the person who responds to bug reports with "it works on my machine, so I'm closing this bug report as invalid".
Please do not confuse him with anyone who can actually develop useful software that works in a predictable fashion, okay?
--- End quote ---
I have been a coder for 40 years and still sometimes just rip some code off the net.
The last rip was a fast fourier transform for a digital oscilloscope.
It took four go's to find one that actually worked well.
Even then I had to get into it to extract the frequency domain data from it.
Microchip have vast databases of software for PIC's to save time and help programmers.
Why start from scratch if its already been done and tested ?
nigelwright7557:
--- 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.
eti:
--- Quote from: coppice on September 18, 2022, 12:31:33 am ---Look on the bright side. If it wasn't for idiots, there'd be no merit in competence.
--- End quote ---
You reckon Dave Plummer an “idiot”? He’s anything BUT. The guy is basically a savant. Bit rude, to put it mildly.
eti:
This thread has devolved into an aspie ego-fest. 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).
Grow up, buffoons.
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