I have planned on using an Arduino Pro Mini in my project. This has meant the creation of a Symbol and a Footprint for the beastie in KiCad. All okay (except that you need to be aware of pins A4-A7 - A4 doubles as SCL and A5 as SDA and these van be important - note that none of these will fit on a breadboard). However 
be aware that Pro Minis come in a variety of disguises. Check these out:
https://www.arduino-board.com/boards/arduino-pro-mini
https://www.arduino-board.com/info/arduino-pro-mini-pinout
It seems that the recipe for using a Pro Mini in your project starts with, "First catch your Pro Mini ..."
be aware that Pro Minis come in a variety of disguises. Check these out:https://www.arduino-board.com/boards/arduino-pro-mini
https://www.arduino-board.com/info/arduino-pro-mini-pinout
It seems that the recipe for using a Pro Mini in your project starts with, "First catch your Pro Mini ..."
