add ripple sensor (#2781)

* add ripple sensor

* Address Landrash's comment
This commit is contained in:
Nolan Gilley 2017-06-07 04:26:58 -04:00 committed by Fabian Affolter
parent 6ae65db2d3
commit 098a6f522d
2 changed files with 31 additions and 0 deletions

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