Yesterday marked the release of Android Things Developer Preview 4, inching ever closer to the official release of Google’s low-power OS made for IoT devices. Details were posted in a blog entry on the Android-developers website.
Earlier this month Google announced a partnership with AIY by releasing a co-produced build-your-own Google Home kit. Built on Google’s Raspberry Pi 3 developer board, the kit showcased Android Things’ ever-expanding features, particularly the integration of Voice Kit. Enabling developers to build a proper Voice User Interface (VUI) Voice Kit is an open-source platform which can integrate cloud services such as Google Assistant SDK or Cloud Speech API or simply run similar services directly on the device with Tensorflow – Google’s on-board neural-network.
Google also added some important drivers to the mix – most notably those necessary for implementing Google Assistant SDK on any certified development board. Also in tow is support for Inter-IC Sound Bus (I2S) which has been Added to the Peripheral I/O API. A Voice Kit sample for which is included, aimed at demonstrating the use of I2S for audio.
Developer Preview 4 will also bring new hardware, adding a Board Support Package for the NXP i.MX7D. Also, in a display of Android Things’ scalability, Google has released Edison Candle – a sample of custom hardware which fits modularly with SoM’s (system-on-modules) running the lightweight OS. Code for this sample is hosted on GitHub while hardware design files can be found on CircuitHub.
Source: Android Developers Blog