This is a modified and ported version of Elecia White's command console. I release the modified code under the BSD 3-clause "New" or "Revised" License (see LICENSE.md file or http://www.opensource.org/licenses/BSD-3-Clause)
The original code is released in the public domain. You can find it here: https://github.com/eleciawhite/reusable And the original public domain LICENSE there: LICENSE
You can find Elecia's podcast at embedded.fm and herself at @logicalelegance. I can highly recommend the podcast if you are interested in embedded development!