Sandbox https://www.raspberrypi.org/magpi/bluetooth-audio-raspberry-pi-3/?_utm_source=1-2-2 https://www.kickstarter.com/projects/1250664710/audio-injector-sound-card-for-the-raspberry-pi/?ref=kicktraq Internet of Things Projects Based On Raspberry Pi The Simple Way to Create a Raspberry Pi Boot SD Card Easy IoT for Raspberry Pi The Internet of Voice Challenge Blueberry Raspberry Pi Multi-Purpose IoT Controller Board Video Streaming https://github.com/DexterInd/GrovePi/tree/master/Software/Scratch