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groveultrasonic: made a few changes to code, example and documentation

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Signed-off-by: Mihai Tudor Panu <mihai.tudor.panu@intel.com>
This commit is contained in:
Mihai Tudor Panu
2015-11-23 17:49:13 -08:00
parent 2eb6ebd3bd
commit b4d4a215a2
4 changed files with 53 additions and 26 deletions
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14
examples/c++/groveultrasonic.cxx
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@ -32,13 +32,13 @@
#include <sys/time.h>
upm::GroveUltraSonic *sonar = NULL;
bool running = true;
void
sig_handler(int signo)
{
printf("got signal\n");
if (signo == SIGINT) {
sonar->m_doWork = 1;
running = false;
}
}
@ -49,10 +49,14 @@ main(int argc, char **argv)
//! [Interesting]
// upm::GroveUltraSonic *sonar = NULL;
sonar = new upm::GroveUltraSonic(2);
printf("width = %d\n", sonar->getDistance());
delete sonar;
while(running) {
int width = sonar->getDistance();
printf("Echo width = %d\n", width);
printf("Distance inches = %f.2\n\n", width/148.0);
sleep(3);
}
//! [Interesting]
printf("exiting application\n");
delete sonar;
return 0;
}