This is the second release of the community firmwares for the GRAINS module of the AE Modular system from tangible waves. Mathias has added many more firmwares which you should definitely try out for yourself.
You can either download each zip file individually or download the release zip file which contains the whole lot.
For installation please refer to http://wiki.aemodular.com/pmwiki.php/AeManual/GRAINS
Please post any questions or comments on the forum at https://forum.aemodular.com/thread/644/grains-module