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.
>
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