Release Notes

Application V3.24 (App-IOIO0324)

Fixed a bug with analog input occasionally giving bogus samples.
Fixes a bug with TWI wouldn't accept a null response buffer when the response size is 0.

Fixed a bug where the bootloader would hang (stat LED constantly on) whenever connected to an Android without IOIO Manager installed.

Changed behavior of open-accessory: do not attempt to activate open-accessory on a recognized device. That means, among other things, that when ADB is enabled on an Android, open-accessory mode will not be triggered, and the open-accessory dialog will not pop. This fixes some issues where trying to activate open-accessory would cause problems.
Synced to latest btstack version.
Improved behavior of missing run-time support for connection types (e.g. Bluetooth, etc.) in IOIOLib. No error will be logged. Graceful handling of no Bluetooth adapter present (e.g. in emulator).
Fixed firmware to build on MPLAB-X 1.10.

Configure the USB device before suspending. The outcome is fix a problem with some devices (Bluetooth dongles, Androids) not working immediately after power-up, but start working after a re-connect.
Fixed firmware to build on MPLAB-X 1.10.

Added buffered reading to AnalogInput. Allows reading acquired samples one by one. More details on the Analog Input page.
Added batch operations to the IOIO interface. This allows the client to group several write operations together, thus reducing latency and jitter. Read more on the IOIOLib Basics page, in the section called "Batching Operations".
ioio.lib.util.AbstractIOIOActivity is now deprecated. Clients should move to ioio.lib.util.android.IOIOActivity. The latter is similar, but not identical. Notably, IOIOThread has been replaced by IOIOLooper, which is an interface. Likewise, createIOIOThread() is now createIOIOLooper(). The implementation of this interface is encouraged to use ioio.lib.util.BaseIOIOLooper as a base class. Converting from the old style to the new style should be trivial. See the example projects as reference.
Added ioio.lib.util.android.IOIOService, which serves as a base class for creating Android services using IOIO.
Added ioio.lib.util.IOIOApplicationHelper, which can be used by clients that need a different model than the Activity or Service above.
Read more about the new utilities API on the IOIOLib Basics page, in the section called "Using the Application-Level Utilities".
Added IOIO.getState() for querying the connection state.

Added Open-Accessory support. Open Accessory will provide improved latency, throughput and jitter and will work when USB debugging is off. It will also cause Android to open a launch dialog upon connection of the IOIO. Some changes are required in the application manifest (see Wiki page), and you also need to add IOIOLibAccessory to your application dependencies. If ADB is enabled on the Android, ADB will take precedence over Open Accessory. Disable ADB to have IOIO working over Open Accessory.
Fixed issue #2: broken backward compatibility between firmware V3 and software V1.
Improved IOIOLib Javadocs.
Fixed issue #15: the loop() method will no longer be called after a disconnection, even if the client hasn't thrown an exception.
DigitalOutput.write() will now silently ignore the operation if writing the same value as the last written value. This is merely an optimization, but may result in performance boost for applications doing high-rate digital output.
In IOIOActivity (and AbstractIOIOActivity) IOIO connection is opened / closed in onStart() / onStop() and not it onResume() / onPause() as it used to.
Fixed several bugs in Uart. Most notably, it now works OK with BufferedReader, and its InputStream.read() will exit cleanly with a -1 return value when calling Uart.close().