Hi to All. I wanted to know what peripherals are connected to the i2c bus. For that I thought about checking the schematics, and I found that the file format used is from Eagle 6.0. Just to ask, is there any open source alternative to open those files? Regarding the i2c bus, is there any already printed schematic, e.g. in pdf for quick access of the features. I actually was thinking on choosing other ports for my testing LED, but I just could find this through the git repositories: https://github.com/Ell-i/Hackathon/wiki/Ellduino%20expansion%20headers Thank you in advance for answering. With Warm Regards, Ivan Raul