/*!
* \brief callback when new LED output is requested
* \param ptr LED parameters
*/
void ledCallback(const phidgets::led_params::ConstPtr& ptr)
{
phidgets::led_params l = *ptr;
for (int i = 0; i < (int)l.brightness.size(); i++) {
// brightness in 0-100 range
CPhidgetLED_setBrightness(phid, i, l.brightness[i]);
}
}
/**
* Sets the brightness for a specific LED output
* @note maximum brightness is 100, 0 is off. Can set this value to anything including and inbetween these values.
*/
void PhidgetLEDController::setBrightness( int index, double brightness )
{
if ( !m_isValid || !m_LEDControl)
{
LOG_CRITICAL( "PhidgetLEDController::setBrightness(). ERROR LED board is not initialized. Call init first." );
return;
}
CPhidgetLED_setBrightness (m_LEDControl, index, brightness);
}
int LED_simple()
{
int result, i;
const char *err;
//Declare an LED handle
CPhidgetLEDHandle led = 0;
//create the LED object
CPhidgetLED_create(&led);
//Set the handlers to be run when the device is plugged in or opened from software, unplugged or closed from software, or generates an error.
CPhidget_set_OnAttach_Handler((CPhidgetHandle)led, AttachHandler, NULL);
CPhidget_set_OnDetach_Handler((CPhidgetHandle)led, DetachHandler, NULL);
CPhidget_set_OnError_Handler((CPhidgetHandle)led, ErrorHandler, NULL);
//open the LED for device connections
CPhidget_open((CPhidgetHandle)led, -1);
//get the program to wait for an LED device to be attached
printf("Waiting for LED to be attached....");
if((result = CPhidget_waitForAttachment((CPhidgetHandle)led, 10000)))
{
CPhidget_getErrorDescription(result, &err);
printf("Problem waiting for attachment: %s\n", err);
return 0;
}
//Display the properties of the attached LED device
display_properties(led);
printf("Press any key to continue\n");
getchar();
//turn on the leds one at a time.
//This example assumes LED's plugged into locations 0-9
for(i = 0; i < 10; i++)
{
CPhidgetLED_setBrightness(led, i, 100); //maximum brightness is 100, 0 is off. Can set this value to anything including and inbetween these values.
}
printf("Press any key to continue\n");
getchar();
//turn off the LEDs one at a a time
//This example assumes LED's plugged into locations 0-9
for(i = 0; i < 10; i++)
{
CPhidgetLED_setBrightness(led, i, 0); //maximum brightness is 100, 0 is off. Can set this value to anything including and inbetween these values.
}
printf("Press any key to end\n");
getchar();
//since user input has been read, this is a signal to terminate the program so we will close the phidget and delete the object we created
printf("Closing...\n");
CPhidget_close((CPhidgetHandle)led);
CPhidget_delete((CPhidgetHandle)led);
//all done, exit
return 0;
}
