talkiepi is a headless capable Mumble client written in Go, written for walkie talkie style use on the Pi using GPIO pins for push to talk and LED status. It is a fork of barnard, which was a great jump off point for me to learn golang and have something that worked relatively quickly.

In the stl directory are the stl files for the enclosure I have designed specifically for the Raspberry Pi B+ board layout (I am using a Raspberry Pi 3 Model B) and the PCB and components from the US Robotics USB Speakerphone. I will be posting a blog post shortly with a full component list and build guide. For more information regarding building a full talkiepi device, go check out my blog at projectable.me.

I have put together an install guide here.

You can edit your pin assignments in talkiepi.go

const (
	OnlineLEDPin       uint = 18
	ParticipantsLEDPin uint = 23
	TransmitLEDPin     uint = 24
	ButtonPin          uint = 25
)

Here is a basic schematic of how I am currently controlling the LEDs and pushbutton:

I have compiled libopenal without ARM NEON support so that it works on the Pi Zero. The packages can be found in the workarounds. directory of this repo, install the libopenal1 package over your existing libopenal install.

MPL 2.0

• talkiepi - Daniel Chote
• Barnard,Gumble Author - Tim Cooper (tim.cooper@layeh.com)