UH Robotics
changed range conditions
Fork of
HCSR04
by 
stephen smitherman
History
changed range;
2014-04-15, by Fairy_Paolina [Tue, 15 Apr 2014 16:51:11 +0000] rev 3
changed range;
Improved missed echo detection.
2013-12-12, by srsmitherman [Thu, 12 Dec 2013 17:22:48 +0000] rev 2
Improved missed echo detection.
Added a detach for the unused Ticker after trigger is set low.
2013-12-02, by srsmitherman [Mon, 02 Dec 2013 23:14:26 +0000] rev 1
Added a detach for the unused Ticker after trigger is set low.
initial release
2013-11-24, by rabad1 [Sun, 24 Nov 2013 21:45:46 +0000] rev 0
initial release