phinze/homebrew-cask — pull request #1850 by Proghat (2013-11-24 13:28:21+00:00)
Title: Add logisim 2.7.1

An educational tool for designing and simulating digital logic circuits, featuring a simple-to-learn interface, hierarchical circuits, wire bundles, and a large component library. As a Java application, it can run on many platforms.

http://sourceforge.net/projects/circuit/