This commit cleans up multiple items with the UPM C example source.
* Switch from usleep and sleep to upm_delay* methods
* Include a mraa_init and check return value prior to using sensor
* All example mains now return
* Added include for mraa.h and upm_utilites.h to all examples
* Reformatted/removed tabs
* Updated author line for the examples I wrote
Signed-off-by: Noel Eck <noel.eck@intel.com>
* Removed relay and rotary from grove library
* Removed relay and rotary from grove SWIG interfaces
* Fixed warning for o2 printf %
* Fixed return value warning for _get_normalized method used by
my analog sensors.
Signed-off-by: Noel Eck <noel.eck@intel.com>
Added the C source for the O2 sensor with necessary changes to cmake,
examples, docs.
* Renamed all files with groveo2 to o2
* Replaced all instances of groveo2 with o2
* Added C source for o2 sensor
* Updated all cmake files
* Added C example for o2 sensor
Signed-off-by: Noel Eck <noel.eck@intel.com>
