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| /* | |
| Source from | |
| http://forum.arduino.cc/index.php?topic=78881.msg1375885#msg1375885 | |
| * Ahmad Byagowi (ahmadexp@gmail.com) | |
| * Date : Aug 31, 2013 | |
| * All code (c)2013 Ahmad Byagowi Consultant. all rights reserved | |
| 20170508 Minor edits to improve clarity by James Newton. | |
| */ | |
| //c2 pin tied to ground for 3 wire mode |
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