/**
* the interrupt to fire when the input pin is pulled up to 3v
*/
void signalIsr(void)
{
unsigned long long interruptTimeMs = getCurrentMilliseconds();
// determine whether this is rising edge or falling edge
if(digitalRead(PIN_INPUT) == 1) {
// rising edge
interruptTimeMsRising = interruptTimeMs;
return;
}
// Was there a preceding rising edge detected?
if(interruptTimeMsRising == 0) {
// No rising value, ignore
return;
}
// else, falling edge
unsigned long long intervalTimeMs = interruptTimeMs - interruptTimeMsRising;
// reset, ready for next event
interruptTimeMsRising = 0;
printf("\n\nnew signal - interval was %llu\n", intervalTimeMs);
if(intervalTimeMs < triggerInterval) {
printf("ignoring, signal time was not long enough\n");
return;
}
// record the signal count to file
fileRecordSignalCount(interruptTimeMs);
// blink the LED to show we recorded the signal
//piThreadCreate(ledSignalCounted);
ledBlink(50);
// attempt to submit the count file
// disable - threads become unresponsive after a while. Rely on main loop call to processCountFile();
//processCountFile();
}
unsigned long Timer::getMilliseconds()
{
return getCurrentMilliseconds() - mTimeStart;
}
void Timer::reset()
{
mTimeStart = getCurrentMilliseconds();
}
/**
* init and run the application
*/
int main(int argc, char *argv[])
{
if(argc < 2)
{
printf("signalCount: usage: signalCounter [endpoint] (trigger_interval_ms)\n");
return 1;
}
// store endpoint
strcpy(endPointUrl, argv[1]);
printf("Using [%s] as endpoint URL\n", endPointUrl);
// store trigger interval, if we have one
if(argc == 3)
{
char* p; // will be set to the "first invalid character" set by strtol
errno = 0;
triggerInterval = strtol(argv[2], &p, 10);
if (*p != '\0' || errno != 0)
{
fprintf(stderr, "invalid trigger interval [%s]\n", argv[2]);
return 1;
}
}
printf("Using [%d] for trigger interval\n", triggerInterval);
// init the wiringPi library
if (wiringPiSetup () < 0)
{
fprintf(stderr, "Unable to setup wiringPi: %s\n", strerror (errno));
return 1 ;
}
// set up an interrupt on our input pin
if (wiringPiISR(PIN_INPUT, INT_EDGE_BOTH, &signalIsr) < 0)
{
fprintf(stderr, "Unable to setup ISR: %s\n", strerror (errno));
return 1 ;
}
// configure the output pin for output. Output output output
pinMode(PIN_OUTPUT, OUTPUT);
pinMode(PIN_INPUT, INPUT);
// pull the internal logic gate down to 0v - we don't want it floating around
pullUpDnControl(PIN_INPUT, PUD_DOWN);
// blink 3 times - we're ready to go
ledBlink(300);
delay(300);
ledBlink(300);
delay(300);
ledBlink(300);
// send a test signal count with the current timestamp
fileRecordSignalCount(getCurrentMilliseconds());
printf("signalCount started\n");
for(;;) {
delay(1000);
// this thread will submit any count files that have not been sent
printf("about to run cleanup thread\n");
processCountFile();
}
return 0;
}
float ofxDepthImageSequence::getCurrentSeconds(){
return getCurrentMilliseconds()/1000.0;
}
