![]() ![]() It's well worth having a good thorough read of the manual (installed as a PDF when you installed Eagle) section on library structure. You still need to do the symbol first, so that the device doesn't go through an invalid state of having too few pads for the pins that need to be allocated. If you don't make copies, you need to edit the device first, break the connections involving those pins/pads, then you should be able to edit the symbol and footprint. If you make copies, you can edit the new symbol and the new footprint to remove the pins, then create a new device using them and only connect what's there. Unless, of course, those six middle pads are guaranteed always irrelevant, pre-populated on the top side and only for in-circuit programming, or such like. I would suggest at this point that you probably want to make copies of both the symbol and the footprint, as what you're creating is a slightly-reduced version of the module and should therefore be a different device. A number of libraries come installed with the IDE, but you. Eagle PCB Design Software is what we use at SparkFun for our PCB design and layout. This means that if you are using Eagle PCB Design Software, you won't need to create your own footprint to use it in your own design, we've done all the heavy lifting for you. To use a library in a sketch, select it from Sketch > Import Library. The library can be downloaded from GitHub here. ![]() working with hardware or manipulating data. Libraries provide extra functionality for use in sketches, e.g. You can't remove either the pins or the pads while that connection exists. The Arduino environment can be extended through the use of libraries, just like most programming platforms. That's because the library "device" associates the footprint with a "symbol" and connects schematic symbol pins to footprint pads. If you do want to remove them, get the "holes" layer up and you should be able to delete them at their I need to delete the 6 pins in the middle of the board, I tried deleting them from the board view but it says "Cant delete pin, connected to X", so I thought I first had to delete the pins from the schematic but it says the same thing. You may want them, in fact, so that your board has correctly aligned mounting holes to fix the module down onto. A hole is a non-PTH hole for mounting purposes. OK, that's because the footprint has "holes" there. Somehow they are part of Dimension but I cant select and move them. I found it and moved the edges of the board to layer 51, but I cant select the four little circles.
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