I use Eclipse and Sublime Text for editing Arduino code, and I build in the Arduino IDE with it set to "external editor" mode, or using the Arduino Command Line tools. Eclipse has a fantastic indexer and makes understanding the Arduino core much easier. I've written a detailed PDF about using and setting up Eclipse for professional software development, incl for Arduino, here: https://github.com/ElectricRCAircraftGuy/eRCaGuy_dotfiles/blob/master/eclipse/Eclipse%20setup%20instructions%20on%20a%20new%20Linux%20(or%20other%20OS)%20computer.pdf.

Note that I'm using regular Eclipse for C/C++, with no Arduino plugins. I don't find them that useful since they can never seem to keep up with the latest Arduino build tools anyway.

See my document for full setup information in general.

I use Eclipse and Sublime Text for editing Arduino code, and I build in the Arduino IDE with it set to "external editor" mode, or using the Arduino Command Line tools. Eclipse has a fantastic indexer and makes understanding the Arduino core much easier. I've written a detailed PDF about using and setting up Eclipse for professional software development, incl for Arduino, here: https://github.com/ElectricRCAircraftGuy/eRCaGuy_dotfiles/blob/master/eclipse/Eclipse%20setup%20instructions%20on%20a%20new%20Linux%20(or%20other%20OS)%20computer.pdf.

Note that I'm using regular Eclipse for C/C++, with no Arduino plugins. I don't find them that useful since they can never seem to keep up with the latest Arduino build tools anyway.

See my document for full setup information in general.

Related:

1. C++ vs. The Arduino Language?