Show Posts
Pages: 1 2 [3] 4 5 ... 16
31  Using Arduino / General Electronics / Re: Which soft can help me to do a PCB on: February 28, 2013, 01:50:31 am
u want to know if eagle supports ur components?

well there is even a sparkfun made eagle library:

http://github.com/sparkfun/SparkFun-Eagle-Libraries

check it out

also there are a lot of good eagle tutorials on youtube, invenst some time and you learn how to use a programm much more powerfull than fritzing. also its not too hard to make components for library urself, just check youtube tutorials for that

eagle is free too as long as u dont use it to earn money the only limitation of that version is the max board size, but u wont reach that that fast
32  Using Arduino / General Electronics / Re: can you take a look at my eagle pcb design? on: February 28, 2013, 01:22:22 am
Hi,

standardhole: its just that i dont know if it can be problematic if the pin i want to put in has the width of that hole but is much much smaller in length.
but i guess ur answer -whats the big deal means its not a problem at all. thanks
33  Using Arduino / General Electronics / Re: can you take a look at my eagle pcb design? on: February 27, 2013, 02:32:23 pm
i already bought it and have it right next to me :/
34  Using Arduino / General Electronics / Re: can you take a look at my eagle pcb design? on: February 27, 2013, 02:19:04 pm
well, i read seeed has no problem with that. if its no problem, which way is better of doing it?

As i have not done that before: is it not problematic that there might be a lot of space left when i choose those big holes? its not a round big pin but a rectangular one on the dc jack.
35  Using Arduino / General Electronics / Re: Some one can tell me the difference between 3 Arduino shield on: February 27, 2013, 01:28:36 pm
number of IO pins, number of analog inputs, differences in flashmemory, different max input voltage
36  Using Arduino / General Electronics / Re: can you take a look at my eagle pcb design? on: February 27, 2013, 06:21:38 am
also i wonder if this way of trying to attach the dc jack regarding the drillholes is better in contrast to the one in my first post. Has somebody experiences with those?
37  Using Arduino / General Electronics / Re: Looking for "sensor" to count turns on: February 27, 2013, 03:41:31 am
i have no idea if this is practical for 1000rpm, but maybe take a look at how speed is measured with a bikecomputer and a magnet inducing a pulse or with some sort of reed switch
38  Using Arduino / General Electronics / Re: can you take a look at my eagle pcb design? on: February 27, 2013, 03:10:42 am
measuring the distances of that above shield -its wrong in top header length, its 39,69 while from mega reference design i get 39,37. And bot headers are not perfectly aligned with top headers as in reference design where the middle of bot a hole is in exact middle between two holes at top.

Seems that those differences of 0,32 mm do not matter, is that true, or did that guy have a hard time fitting the shield on the arduino and didnt tell, or are my measurements wrong?
39  Using Arduino / General Electronics / Re: Which soft can help me to do a PCB on: February 26, 2013, 04:29:33 am
cadsoft eagle is great and you get the actual arduino pcb layout files in the hardware section
40  Using Arduino / General Electronics / Re: can you take a look at my eagle pcb design? on: February 26, 2013, 04:27:13 am
nice, thx
41  Using Arduino / General Electronics / Re: can you take a look at my eagle pcb design? on: February 26, 2013, 12:10:56 am
Quote
You've got lots of board space and you should use it rather than creating physically weak areas on the edge of your board

how can i achieve that? mega is 5,5cm wide and seeed max 5 cm (unless i want to pay extra 15$ for 5mm), so these connectors have to be that close to the edge otherwise it wont fit on the mega
42  Using Arduino / General Electronics / Re: can you take a look at my eagle pcb design? on: February 25, 2013, 02:54:27 pm
So I just could ignore those errors as its not actually a part but several vias combined?


Well actually I used "real" connectors at first but they didnt work as they are like 2 mm too large and wont fit on the 5x5cm (see attachment)
Otherwise I would not have gone through the trouble of creating a new part for the library, creating footp and symbol and pinconnections. But maybe there is a more clever way I dont know of.
43  Using Arduino / General Electronics / Re: can you take a look at my eagle pcb design? on: February 25, 2013, 02:26:16 pm
Quote
X3 pin 4 has a "less than 90 degrees angle"
I made a T out of it.

Quote
Name your vias GND so it connects both top and bottom copper layers
I already fixed that, see last my attachment picture.

Quote
Why not use pads instead of vias to connect your wires?
Could you explain more please as I am unexperienced. I use the vias for their holes to put headers in them so that i can attach my shield on top of arduino.


Quote
I think your pads are too close to the edge. DRC didn't like it.

Why doesnt drc like my library part consisting of vias, but likes plain vias at the same position with the same size? I could just place a Via same size same distance next to my existing header-vias and it would give me no error.
44  Using Arduino / General Electronics / Re: can you take a look at my eagle pcb design? on: February 25, 2013, 01:56:53 pm
Thank you, I put the files in the zip and made a screenshot.
45  Using Arduino / General Electronics / Re: can you take a look at my eagle pcb design? on: February 25, 2013, 01:18:04 pm
well not so important. its not about the 2 gnd, its just that symbol for the jack in the schematic isnt self explanatory, atleast for me.

I have another issue, maybe someone knows an answer.

The via-headers in the brd are actually vias i made in to a library part with pins so that i can actually attach something to these vias in the schematic.
The seeedstudio DRC tells me "dimensions error" on all of these via-headers.
So i guess the part is too close to the edge, but on the other hand when i just place a simple via with the same size and same distance to the boards edge i dont get an error. I guess drc thinks my via header is a "part" so it must not be that close, but if it was just a via (so just as it is) its ok.

Do you have an idea whats wrong?

In my attachment I put a simple via left of my via-header, as you can see it doesnt get marked red
Pages: 1 2 [3] 4 5 ... 16