The Orange Pi Zero came in the mail yesterday, so I guess we're ready to move on to the next part in the design of the smart speaker: audio input and output. We won't cover any of the intelligence behind the AI right now because all I want to do is get audio out of the Orange Pi and into the speaker at a reasonable volume, and maybe get voice recognition to work. By the end of this, we should have something that can play music files and maybe transcribe what I say. We'll see.