Ytai: With the sync() call after the endBatch() and before the getDuration() the program hangs up and I get no readings.
Vic On Apr 15, 2014, at 5:32 PM, Ytai Ben-Tsvi <[email protected]> wrote: > This code doesn't have the sync() call I proposed. It should come after the > batch. > > On Apr 15, 2014 4:43 PM, "Vic Wintriss" <[email protected]> wrote: > Ytai: > > This code produces only 1.6875E-5...reading 2 times per second. > > import ioio.lib.api.DigitalOutput; > import ioio.lib.api.IOIO; > import ioio.lib.api.PulseInput; > import ioio.lib.api.PulseInput.PulseMode; > import ioio.lib.api.exception.ConnectionLostException; > > public class UltraSonicSensors > { > private static final int LEFT_ULTRASONIC_INPUT_PIN = 35; > private static final int LEFT_STROBE_ULTRASONIC_OUTPUT_PIN = 15; > private final PulseInput leftInput; > private DigitalOutput leftStrobe; > private float leftDistance; > private IOIO ioio; > > public UltraSonicSensors(IOIO ioio) throws ConnectionLostException > { > this.leftInput = ioio.openPulseInput(LEFT_ULTRASONIC_INPUT_PIN, > PulseMode.POSITIVE); > this.leftStrobe = > ioio.openDigitalOutput(LEFT_STROBE_ULTRASONIC_OUTPUT_PIN); > this.ioio = ioio; > } > > public void read() throws ConnectionLostException, InterruptedException > { > read(leftStrobe, leftInput); > } > > private void read(DigitalOutput strobe, PulseInput input) throws > ConnectionLostException, InterruptedException > { > ioio.beginBatch(); > strobe.write(true); > strobe.write(false); > ioio.endBatch(); > this.leftDistance = input.getDurationSync(); > } > > public float getLeftDistance() > { > return leftDistance; > } > } > On Apr 15, 2014, at 4:27 PM, Ytai Ben-Tsvi <[email protected]> wrote: > >> Can you send me the most "correct" version of your code that demonstrates >> the issue? >> I can probably make the necessary changes to sync () if this is indeed a >> problem. >> >> On Apr 15, 2014 4:03 PM, "Vic Wintriss" <[email protected]> wrote: >> Thanks for the ideas. I've tried many combinations of synch, >> readBuffered...etc, but unfortunately it still reads very small >> numbers...probably measuring the last part of the trigger pulse. Is there >> any way that I can delay the read by a couple of hundred micro seconds? >> Could you do the..... sync() call "send" half inside the batch and "wait" >> half outside thing? >> >> Thanks for all the help. The kids are trying to use these sensors for iARoC >> 2014 (the International Autonomous Robot Competition) here in San Diego. >> >> -- >> You received this message because you are subscribed to the Google Groups >> "ioio-users" group. >> To unsubscribe from this group and stop receiving emails from it, send an >> email to [email protected]. >> To post to this group, send email to [email protected]. >> Visit this group at http://groups.google.com/group/ioio-users. >> For more options, visit https://groups.google.com/d/optout. >> >> -- >> You received this message because you are subscribed to a topic in the >> Google Groups "ioio-users" group. >> To unsubscribe from this topic, visit >> https://groups.google.com/d/topic/ioio-users/3MDLEEKtejY/unsubscribe. >> To unsubscribe from this group and all its topics, send an email to >> [email protected]. >> To post to this group, send email to [email protected]. >> Visit this group at http://groups.google.com/group/ioio-users. >> For more options, visit https://groups.google.com/d/optout. > > > -- > You received this message because you are subscribed to the Google Groups > "ioio-users" group. > To unsubscribe from this group and stop receiving emails from it, send an > email to [email protected]. > To post to this group, send email to [email protected]. > Visit this group at http://groups.google.com/group/ioio-users. > For more options, visit https://groups.google.com/d/optout. > > -- > You received this message because you are subscribed to a topic in the Google > Groups "ioio-users" group. > To unsubscribe from this topic, visit > https://groups.google.com/d/topic/ioio-users/3MDLEEKtejY/unsubscribe. > To unsubscribe from this group and all its topics, send an email to > [email protected]. > To post to this group, send email to [email protected]. > Visit this group at http://groups.google.com/group/ioio-users. > For more options, visit https://groups.google.com/d/optout. -- You received this message because you are subscribed to the Google Groups "ioio-users" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. To post to this group, send email to [email protected]. Visit this group at http://groups.google.com/group/ioio-users. For more options, visit https://groups.google.com/d/optout.
