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Unable to open Fritzing files

December 31, 2016, 4:57 pm
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While I'm a Windows user rather than Mac, from the error message it appears the fzz (which is a renamed .zip file) is either missing or corrupted. Things to try: Check permissions and owner ship of the file (don't know how in the gui on a Mac though :slight_smile: , if you are comfortable with the Unix command line

ls -l /Applications/Fritzing/JB Fritzing projects

would do it) If the file is there, check for zero length (in which case you may have or had a full disk which will truncate the file when it is written). If the file is there and has an appropriate size, rename it to Bendo Box v5 5cm.zip and try and open it with a zip utility (again don't know the name on a Mac, I use 7zip which is open source and may also support Macs on Windows). Hopefully that will give you a better error message than Fritzing is and thus more of a clue as to what is wrong. Even better, perhaps someone familiar with Macs will give you some better suggestions :slight_smile: . In any case good luck! Backing up valuable files is always a good bet, but now is a little late to start if you haven't been (but it is a good suggestion for the future in any case).

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Find existing schematics for import

December 31, 2016, 5:11 pm
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You appear to be mostly in luck. The Fritzing parts search finds a triac, a optoisolated triac (not the same part as the one referenced though) a solid state relay and the led display. You would need to either find or make a part for the zero crossing triac driver but that shouldn't be too hard. You would then need to connect all the parts together within Fritzing to make your project. You may want to look at / search the projects page on the main Friitzing site to see if someone there has made something similar to what you want.

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Error when running software

January 1, 2017, 2:37 am
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Does Anybody as ever created a 4 Channels L298 H Bridge?

January 1, 2017, 8:37 am
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Hi,
Does Anybody as ever created or used a 4 Channels L298 H Bridge ?
And a user guide eventualy ?

See image below :

Thanks a lot for your Answers, and Happy 2017 !
:smile:

Regards,
Stephane.

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Unable to open Fritzing files

January 1, 2017, 6:07 pm
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Terminal returned the following:
ls: /Applications/Fritzing/JB: No such file or directory
ls: Fritzing: No such file or directory
ls: projects: No such file or directory

The file "Bendo Box v5 5cm.fzz" is only 22kb according to finder. I don't understand what's happening, and why it's only Fritzing that has this issue.

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Error when running software

January 1, 2017, 6:08 pm
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With the warning that I'm on Windows, not a Mac :slight_smile: you might try deleting or (safer) renaming the directorys:

~/.config/Fritzing and
/Users/username/Documents/Fritzing/parts

(I assume username in the above should be replaced with your Mac user name). The first is Fritzings temp files and the second is user parts (I'm assuming you don't have any user parts that you want to keep here, if you do keep a copy of the /Users/username/Documents/Fritzing/parts directory). These directories are not deleted by a reinstall (only the main Fritzing directory is) and on Windows they sometimes get corrupted (usually when I'm loading newly created parts with errors) and need to be cleared. When Fritzing restarts it will recreate the directories (empty). Otherwise perhaps another Mac user may have other suggestions (I haven't seen a complaint like this before though).

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Unable to open Fritzing files

January 1, 2017, 6:30 pm
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Sorry, my bad, forgot the quotes. Try

ls -l "/Applications/Fritzing/JB Fritzing projects"

as well do an

ls -l ./

(which will display your current directory and give us your userid and group information to compare with that of the "/Applications/Fritzing/JB Fritzing projects" file). The blanks in the file name act as delimiters (and it looked for "/Applications/Fritzing/JB" then "Fritzing" then "projects" none of which will exist). My best guess without the errno value from the error message is that you have an ownership or permissions problem. The " zip.open(): %d" in the error message is likely a Fritzing bug, as the %d should be a number indicating what error happened on the open, but it looks like someone forget to add the errno variable to the end of the printf statement in Fritzing. Are you using more than one user ID on your Mac? I suspect that your files are owned by a different user id than you are logged in as and the error number on the open would likely be permission denied if it were being displayed. I suspect your files are probably fine as the error seems to be on file open rather than when it is trying to unzip them and you just need to modify the permissions so you can read and write them from the user Id you are using. The file being 22k sounds reasonable (0 would be unreasonable and of concern :slight_smile: ) Fritzing files aren't usually all that large so I expect the files are fine and as noted permissions are the issue and if we correct that things will work.

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Does Anybody as ever created a 4 Channels L298 H Bridge?

January 1, 2017, 6:48 pm
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A couple ideas for the PCB editor interface

January 1, 2017, 7:18 pm
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I have managed to use Fritzing now to create a circuit board that is very basic. I was able to use the 'bottom mirror' PDF output to etch a board. Just a simple board with 12 LEDs on it and some transistors to control them in groups of four.

I have noticed a few problems with the PCB editor:

  1. The cursor suffers from 'magic wand' syndrome. Everything is done through it, so clicking a part can do a huge number of possible things.
  2. It's difficult to select some parts on the board.
  3. There is no way to set a key to do some specific action (i.e. rotate currently selected part).
  4. I can't "merge" traces.

For the first problem, if there was a menu somewhere that enabled the user to toggle specific actions the cursor can perform it would be great. For example, if I could disable adding traces it would be great. Usually I add a bunch of traces then work on part placement.

For the second problem, I am not sure what happens here. Sometimes in inspector I actually see the part name briefly but I wind up with 'PCB' selected somehow. Could a master list of each component be added somewhere, possibly searchable?

For problem 3, it would be nice to be able to add key bindings for specific actions on a part such as flip, rotate, etc.

For problem 4, what I am talking about is when I wind up with a set of traces that forms a closed polygon. I think somehow this should be able to identified and can be merged into a closed part. This is usually advantageous when dealing with positive power rails. Also if you are etching from a copper clad board, it doesn't really cost anything to do this.

Does anyone have any further feedback along these ideas?

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A couple ideas for the PCB editor interface

January 1, 2017, 7:38 pm
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1 - Yeah
2 - This has been a problem from day one, so there are work-arounds. Try zoom out select, try zoom in select. Select from the bottom, Select in different view and move with Inspector x,y until you can grab it.
3 - Yeah, there isn't shortcut keyboard keys for everything.
4 - What I do it click on the connector and everything connected to it turns yellow, and then I look for a shorter way.

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Parts Raspberry Pi Model A+ not found

January 2, 2017, 12:08 am
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The current version of Fritzing has most versions of the Pi in the 'Core parts' (under 'Computer').
AFAICT only the A+ is missing.

When will it be included? I need to use this part.

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Raspberry Pi Model A+ Fritzing Part

January 2, 2017, 12:08 am
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Raspberry Pi Model A+ Fritzing Part

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I want to include some latching DTDP relays... but oh dear

January 2, 2017, 3:07 am
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Hi
Thank you for all of the replies and thanks Vanepp for the relay fzpz files, they really helped.

I have been experimenting with Fritzing and am making progress. I have found that unless I have a large PCB, the “auto route” function has some problems with the number of connections between the 74HC595 - ULN2803A chips and the 4 relays on each board.

I have had a go at rearranging the components and manually routing the connections in the PCB view; so far it looks ok.
However, because this is my first attempt at designing a PCB I am a little unsure, it would be helpful to hear some views from more experienced people, is it possible to post the file and get some feedback on my design - layout?

Thanks again for the help.

Regards

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I want to include some latching DTDP relays... but oh dear

January 2, 2017, 11:45 am
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Sure post your sketch and we will have a look. Off the top you should run DRC (design rule check under routing in pcb view) and likely use a gerber viewer such as gerbv to check the actual gerber files that you send to the production house (assuming you are going for commercial boards) but we are likely to do those things anyway.

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Unable to open Fritzing files

January 2, 2017, 12:12 pm
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My bad also...I misread the file size. There was an adjacent file that was 22kb. The file "Bendo Box v5 5cm.fzz" is only 22 bytes. I fear it is gone forever. Must establish a backup for this laptop....

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Unable to open Fritzing files

January 2, 2017, 2:46 pm
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Yes 22 bytes is a little small. Is it possible you ran out of disk space at some point? That is the usual reason for truncated files and error reporting is spotty about whether the truncation gets reported (the system call reports the fail but many programmers don't check). For backup something as simple as a USB key that you copy the Fritzing files to when you have made major changes is an easy out.

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I want to include some latching DTDP relays... but oh dear

January 2, 2017, 9:07 pm
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Here is the file (I hope).

I have run DRC it looks good. Of course that is once we ignore the obvious issue that I have routed trace over some of the unused pads under the relays. The pads are left over from the original 16 pin chip that formed the base of the relay layout, hopefully this isn’t a problem.

I don’t consider this to be a "finished" design but it would be good to know if I have made any blunders before I have another go. Also, I still need to change the Molex connectors to something 2.54mm through hole and to give the board a more universal application I may move/remove the 5.08 screw connector (labelled Left - Right) in favour of a traditional 6 pin IO for each relay.

relay boards 02.fzz (47.6 KB)

Regards.

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Error importing SVGs from illustrator

January 3, 2017, 7:15 am
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I don't get it. I have followed tutorials to the point, still when I try to import my SVG:s in the Parts Editor all I get are error messages. <img src="/uploads/default/original/2X/b/b12906a5668747e5f9fca13d6ea14c2b4a4cdc7e.png" width="690" height="292">

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Error importing SVGs from illustrator

January 3, 2017, 12:54 pm
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Change the extension on the svg to .fzz and upload it here.

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Lots of schematic generic parts in dwg format

January 3, 2017, 1:27 pm
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Hi,

I have about 100 parts from the aeroelectric.com website in DWG format that would be great to get into Fritzing. Some are already in there, but many are not. These are parts we use for experimental aircraft wiring diagrams.

The parts can be found here:

http://www.aeroelectric.com/PPS/ACAD_Symbols_Library/

They are very simple, as they are only schematics.

Does anyone have any experience converting from dwg to the fritzing parts format? Does anyone want to take on a couple of these parts?

Apologies if getting schematic only parts does not fit into the spirit of the fritzing tool - if so, please just tell me to go away!

Thanks!

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