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Sorry Gene, I was attempting to start a new discussion. Is there more context required? I'll expand a bit more in case that's helpful. If you are not familiar with the "MicroMod" system it combines a

I wouldn't have thought you would need to treat I2C lines as transmission lines, the data rate is quite slow (even at high speed I2C you are still only at 4MHz). It is not as though you are laying out

On 1/11/24 10:46, Doug McKnight wrote: Please Doug, furnish some context so we know who you are replying to. > Hello, > I'm designing a board for a remote data logging application and I'd like to use

0.2 mm sounds OK, but it's only eight thousandths of an inch. Any defect, even a change of hardness/annealing, in the copper creates a stress-concentration point, leading to a crack. I think you

The lines concerned are I2C clock and data, and yes, I will be considering them as transmission lines. However, there's no point laying something down that is electrically just fine if the board

Hello, I'm designing a board for a remote data logging application and I'd like to use the Sparkfun LTE GNSS board that hosts the uBlox SARA-R5 module. Does anyone have a symbol and footprint that

You are talking transmission lines at >25mm length in modern circuitry. That subject cannot be adequately covered here. See a good disertation on "microstrip" layout and design them as the

I don't think there is any guidance on this unless this is a flex pcb. If you are really worried, you need to make sure that 1. You put enough screw points to prevent flexing, 2. You make sure your

Depending on what you are doing with the signals, the resistance of that trace, or it's impedance may be more of an issue than breaking through flexing. If flexing really will be an issue, it's more

Hi, Does anyone know of any guidance as to how wide very long straight tracks should be to avoid manufacturing difficulties or breakage due to board flexing (or any other potential problem I haven't

Hi That is what I do on most of my projects. But I don't see it has a "bogus root sheet", for me it works more like a "block diagram" of my project; and it really helps me organize things like

Hi all, Are there any plugin or feature that checks if all my components are placed on 0.1mm grid? Thanks, Lev -- Levente Kovacs Senior Electronic Engineer W: http://levente.logonex.eu

Fully sympathetic, library organization is something to learn-by-doing! You might want to just create new Schematic and Footprint libraries to hold your stuff, and then copy/move parts into these

Hi, I have been a user for about a year here: I have successfully done quite a few schematics/PCBs with KiCAD r7.0.5, and love it!? However I failed to learn how to properly organize my libraries

If possible, don't work for a company that doesn't respect your professional standards.

Yes, very VERY sad how the opinion of an engineer is worth so little. Not like we make the thing work in the first place or anything!!

Grrrr. I remember the CFO changing my BOM. When the prototypes arrived, I discovered many changes. When I went to ask "WTF, MF?" he told me how he had saved "over $50.00" on the ten parts by making

Mentioning "fun" customers/managers... There's the ones that change your BOM to make it cheaper, use regular suppliers, or who knows why. I designed some medical equipment which, of course, use high

100+ I would say! Having 'smart-prototyping' makes managers think the product is finished. I designed a board with 100-pin micro, 140-pin modem, etc... extremely lucky there was only 1 minor error...

On complex boards I'll order them partially assembled to test the power supplies and basic functions, then have the other parts added later. Over the years it's been a battle with customers who want