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I design and build a home intercom system that can transmit audio to and from my headset connected to my PC so I can hear and respond from the basement while gaming intensely, communications from the other side of my home. The intercom uses two Raspberry Pi Zero Ws running a branch of Talkiepi, a headless mumble VoIP (Voice over IP) client designed for raspberry pi's to communicate with other mumble client's connected to a server running on my home server.
This video wasn't entirely meant to be a tutorial video so I don't spend a ton of time explaining how to do everything but if you're looking to make it yourself it should be enough to help you know where to start researching, as any good project maker would, and I've included links to most things mentioned lower down here.
This project and video took me a while to finish and could definitely used more polishing but it had already took long enough and I felt it was good enough and ready to move on to other things.
Materials:
Raspberry Pi Zero W (Wifi):
Adafruit: www.adafruit.c...
Microcenter: www.microcente...
Adafruit Voice Bonnet: www.adafruit.c...
ReSpeaker 2-Mics Pi HAT: www.seeedstudi...
Mono Enclosed Speaker -3W 4 Ohm: www.adafruit.c...
Software:
Mumble: www.mumble.info/
Coppit Mumble Server Docker Image: hub.docker.com...
Adafruit Voice Bonnet Software with Raspberry Pi and Voice Bonnet setup instructions: learn.adafruit...
Talkiepi (original): github.com/dch...
Talkiepi Branch by Custom Machines for this setup: github.com/Cus...
^ Don't use the seeed voicecard setup instructions they use, just use adafruit's instructions, and some things they go over in this aren't actually necessary like installing workarounds for Arm Neon support.
Simple LED Control Code: github.com/Ale...