Hello all
I have an app that takes data from a sensor in the mobile device and uses
the IOIO to transform the numeric value into the frequency of a transducer
by turning an output pin on and off and controlling the transducer with a
FET.
I have successfully done this in other apps but something is different now.
My problem is that when I run:
*...*
int vibPin = 40;
*...*
led_ = ioio_.openDigitalOutput(IOIO.LED_PIN);
out = ioio_.openDigitalOutput(vibPin);
*...*
while (true) {
* //out.write(false);*
led_.write(false);
Thread.sleep((long) 100);
* //out.write(true);*
led_.write(true);
Thread.sleep((long) _incomingValue);
Log.d(TAG, "Sensor Value " + _incomingValue);
}
with the "out" pin commented out, everything works and LogCat shows the
Sensor Value indefinitely. But if I uncomment the out pin, the app will run
for a bit but then IOIO will disconnect and re-connect. Log cat will show
this:
08-22 17:13:28.351: I/IOIOImpl(20170): IOIO connection established
08-22 17:13:28.356: D/IOIOConnectionVibThread(20170): Thread [Thread-78589]
is running.
08-22 17:13:28.961: D/IOIOConnectionVibThread(20170): Sensor Value 485.0
08-22 17:13:29.591: D/IOIOConnectionVibThread(20170): Sensor Value 485.0
08-22 17:13:30.221: D/IOIOConnectionVibThread(20170): Sensor Value 485.0
08-22 17:13:30.851: D/IOIOConnectionVibThread(20170): Sensor Value 485.0
08-22 17:13:31.476: D/IOIOConnectionVibThread(20170): Sensor Value 485.0
08-22 17:13:32.096: D/IOIOConnectionVibThread(20170): Sensor Value 485.0
08-22 17:13:32.721: D/IOIOConnectionVibThread(20170): Sensor Value 485.0
08-22 17:13:33.351: D/IOIOConnectionVibThread(20170): Sensor Value 485.0
08-22 17:13:33.466: I/IOIOProtocol(20170): IOIO disconnected
08-22 17:13:33.486: D/IOIOImpl(20170): Physical disconnect.
08-22 17:13:33.486: V/BluetoothIOIOConnection(20170): Client initiated
disconnect
08-22 17:13:33.496: E/IOIOConnectionVibThread(20170):
ConnectionLostException
08-22 17:13:33.496: E/IOIOConnectionVibThread(20170):
ioio.lib.api.exception.ConnectionLostException: java.io.IOException: Broken
pipe
08-22 17:13:33.496: E/IOIOConnectionVibThread(20170): at
ioio.lib.impl.DigitalOutputImpl.write(DigitalOutputImpl.java:53)
08-22 17:13:33.496: E/IOIOConnectionVibThread(20170): at
mit.edu.obmg.cellsensors.IOIOConnection$Vibration.run(IOIOConnection.java:170)
08-22 17:13:33.496: E/IOIOConnectionVibThread(20170): Caused by:
java.io.IOException: Broken pipe
08-22 17:13:33.496: E/IOIOConnectionVibThread(20170): at
android.net.LocalSocketImpl.writeba_native(Native Method)
08-22 17:13:33.496: E/IOIOConnectionVibThread(20170): at
android.net.LocalSocketImpl.access$600(LocalSocketImpl.java:33)
08-22 17:13:33.496: E/IOIOConnectionVibThread(20170): at
android.net.LocalSocketImpl$SocketOutputStream.write(LocalSocketImpl.java:132)
08-22 17:13:33.496: E/IOIOConnectionVibThread(20170): at
android.bluetooth.BluetoothSocket.write(BluetoothSocket.java:482)
08-22 17:13:33.496: E/IOIOConnectionVibThread(20170): at
android.bluetooth.BluetoothOutputStream.write(BluetoothOutputStream.java:85)
08-22 17:13:33.496: E/IOIOConnectionVibThread(20170): at
java.io.BufferedOutputStream.flushInternal(BufferedOutputStream.java:185)
08-22 17:13:33.496: E/IOIOConnectionVibThread(20170): at
java.io.BufferedOutputStream.flush(BufferedOutputStream.java:85)
08-22 17:13:33.496: E/IOIOConnectionVibThread(20170): at
ioio.lib.impl.IOIOProtocol.endBatch(IOIOProtocol.java:186)
08-22 17:13:33.496: E/IOIOConnectionVibThread(20170): at
ioio.lib.impl.IOIOProtocol.setDigitalOutLevel(IOIOProtocol.java:245)
08-22 17:13:33.496: E/IOIOConnectionVibThread(20170): at
ioio.lib.impl.DigitalOutputImpl.write(DigitalOutputImpl.java:50)
08-22 17:13:33.496: E/IOIOConnectionVibThread(20170): ... 1 more
08-22 17:15:53.466: I/IOIOConnection(20170): All workers dead
08-22 17:15:53.476: D/IOIOImpl(20170): Waiting for IOIO connection
08-22 17:15:53.476: V/IOIOImpl(20170): Waiting for underlying connection
08-22 17:15:53.506: V/BluetoothIOIOConnection(20170): Attempting to connect
to Bluetooth device: IOIO (08:30)
08-22 17:15:53.511: D/BluetoothUtils(20170):
isSocketAllowedBySecurityPolicy start : device null
08-22 17:15:53.511: D/BluetoothUtils(20170):
isSocketAllowedBySecurityPolicy start : device null
08-22 17:15:53.511: D/BluetoothUtils(20170):
isSocketAllowedBySecurityPolicy start : device null
08-22 17:15:53.511: W/BluetoothAdapter(20170): getBluetoothService() called
with no BluetoothManagerCallback
08-22 17:15:53.526: D/BluetoothSocket(20170): connect(), SocketState: INIT,
mPfd: {ParcelFileDescriptor: FileDescriptor[109]}
08-22 17:15:58.221: V/BluetoothIOIOConnection(20170): Established
connection to device IOIO (08:30) address: 00:1F:81:00:08:30
08-22 17:15:58.221: V/IOIOImpl(20170): Waiting for handshake
08-22 17:15:58.226: I/IncomingState(20170): IOIO Connection established.
Hardware ID: SPRK0020 Bootloader ID: IOIO0400 Firmware ID: IOIO0500
08-22 17:15:58.226: V/IOIOImpl(20170): Querying for required interface ID
08-22 17:15:58.236: V/IOIOImpl(20170): Required interface ID is supported
08-22 17:15:58.236: I/IOIOImpl(20170): IOIO connection established
The app uses fragments to control each different sensor present in the
device and uses IOIO as a service. Inside the IOIO service I start a
"Vibration Thread" so that I can control the frequency of the vibPin in a
loop.
I have no idea what is going on or how to fix it.
Thanks,
Santiago
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