| General > General Technical Chat |
| Software guys, please, no. |
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| pcprogrammer:
--- Quote from: dunkemhigh on September 22, 2022, 05:08:24 pm ---AFAICS, it would be useful if you have a (small) capacitive load where you want or need to limit inrush, but surely an external resistor would be safer (in the sense that it would protect against 'software guys' programming the stuff incorrectly). --- End quote --- Like Howardlong wrote it reduces noise when frequent switching is done. The capacitive load you can think of is the gate capacitance of a MOSFET, and yes even then a small series resistor can have its use. I'm no expert in this field though. And yes in some way it is good practice to protect the hardware from abuse by a programmer. That is why I encourage at the minimum embedded programmers to learn some basics of hardware. I started with hardware at a young age before getting schooled in it and learned about assembly programming in school. Did several years in embedded hardware and software, but with more and more software jobs coming my way I went into al sorts of programming from printer drivers to web based information systems. Now retired I'm back on embedded and tinkering with FPGA's |
| tggzzz:
--- Quote from: xrunner on September 22, 2022, 11:26:38 am ---The guy is probably laughing his ass off now if he sees this thread. He even infected an electronics forum with his joke! :-DD --- End quote --- If that was his objective, there is an old word to describe it: trolling. |
| pcprogrammer:
And as usual we were happy to oblige :) |
| SiliconWizard:
--- Quote from: tggzzz on September 22, 2022, 06:48:06 pm --- --- Quote from: xrunner on September 22, 2022, 11:26:38 am ---The guy is probably laughing his ass off now if he sees this thread. He even infected an electronics forum with his joke! :-DD --- End quote --- If that was his objective, there is an old word to describe it: trolling. --- End quote --- Given the means he devotes to his channel, I'm still convinced it's more for the traffic it's generated rather than just pure trolling for the sake of having a laugh. Come on. Are people this deluded about what runing a successful YT channel means? |
| Infraviolet:
Routinely put a series resistor with a Pi's GPIO? Actually I'd routinely put a resistor from the gpio to the base of a BJT, then the emitter to gnd and the collector through the LED and another resistor to Vcc. Atleast for anything more long term than a breadboard concept test (I don't think breadboards are the devils work, they are good for trying something out before you solder up a proper one, they are not right for anything you consider finished or permanent) or anything where you want the choice of being able to run the LED with more current than the GPIO could handle. How do I vote for this in the poll? |
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