How do I create a library with a device from a schematic and a board

David Waring wrote:

 

I want to add a device to my project. It is a BMP180 barometer board from Adafruit. I have the .sch and .brd from the vendor. The board is complete and wired, but when I use the ULP script to export the library I get a library that has no device which represents the board itself, just the components. So there is no connection between the library that was created and the original board. There is no way for me to use this library to add the board to my project. Am I missing something here? What is the point of exporting the library if all you get is the individual parts and the the layout?

 

I am using Eagle 7.7.0

The library export is simply to allow parts used within a board to be exported so they can be used elsewhere or updated within the design if all you have is the .sch and .brd. Otherwise it would be difficult to take an existing design and update it without having to recreate components from scratch if you don't have access to the original libraries.

If you want to create a device which adds the appropriate footprints to allow you to incorporate the Adafruit board into another design then you have to create the library part for that yourself. Creating your own library parts is a fairly simple task and there are loads of good tutorials on how to do it (Adafruit have quite a good tutorial) and there is the EAGLE help too.

Best Regards,

Rachael

David Waring wrote:

 

I want to add a device to my project. It is a BMP180 barometer board from Adafruit. I have the .sch and .brd from the vendor. The board is complete and wired, but when I use the ULP script to export the library I get a library that has no device which represents the board itself, just the components. So there is no connection between the library that was created and the original board. There is no way for me to use this library to add the board to my project. Am I missing something here? What is the point of exporting the library if all you get is the individual parts and the the layout?

 

I am using Eagle 7.7.0

The library export is simply to allow parts used within a board to be exported so they can be used elsewhere or updated within the design if all you have is the .sch and .brd. Otherwise it would be difficult to take an existing design and update it without having to recreate components from scratch if you don't have access to the original libraries.

If you want to create a device which adds the appropriate footprints to allow you to incorporate the Adafruit board into another design then you have to create the library part for that yourself. Creating your own library parts is a fairly simple task and there are loads of good tutorials on how to do it (Adafruit have quite a good tutorial) and there is the EAGLE help too.

Best Regards,

Rachael

It seems strange to me that this is true. I can understand how exporting a schematic will allow the things on it to be reused, but if a schematic and a board have been created, then the board itself is obviously a device that could be used in some other board. For example Adafruit goes to the trouble of providing a schematic and board for their barometer, but this can't be used by someone who is trying to put that barometer onto a printed circuit, when that seems like the only reason someone who purchased that barometer would have for the Eagle files. It seems like all the information is there so why not create a device for the board when exporting the library. Again, am I missing something?