int main(int argc, char ** argv)
{
int devFD;
double angle;
int i2cDev = 0;
if (boardInit() < 0) {
printf("Fail to init board\n");
return -1;
}
if (argc == 2)
i2cDev = atoi(argv[1]);
if ((devFD = hmc5883Init(i2cDev)) == -1) {
printf("Fail to init hmc5883\n");
return -1;
}
if ((angle = hmc5883Read(devFD)) != -1) {
printf("The angle is %.1f\n", angle);
} else {
printf("Fail to read hmc5883\n");
}
hmc5883DeInit(devFD);
return 0;
}
int main(int argc, char ** argv)
{
int devFD;
double angle;
int i2cDev = 0;
if (boardInit() < 0)
printf("Fail to init board\n");
if (argc == 2)
i2cDev = atoi(argv[1]);
if ((devFD = hmc5883Init(i2cDev)) == -1) {
printf("Fail to init hmc5883\n");
return -1;
}
if ((angle = hmc5883Read(devFD)) == -1) {
printf("Fail to read hmc5883\n");
hmc5883DeInit(devFD);
return -1;
}
printf("The angle is %.1f\n", angle);
printf("You are heading ");
if((angle < 22.5) || (angle > 337.5 )) {
printf("South\n");
}
else if((angle > 22.5) && (angle < 67.5 )) {
printf("South-West\n");
}
else if((angle > 67.5) && (angle < 112.5 )) {
printf("West\n");
}
else if((angle > 112.5) && (angle < 157.5 )) {
printf("North-West\n");
}
else if((angle > 157.5) && (angle < 202.5 )) {
printf("North\n");
}
else if((angle > 202.5) && (angle < 247.5 )) {
printf("NorthEast\n");
}
else if((angle > 247.5) && (angle < 292.5 )) {
printf("East\n");
}
else if((angle > 292.5) && (angle < 337.5 )) {
printf("SouthEast\n");
}
hmc5883DeInit(devFD);
return 0;
}
