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Welcome to the mema3 wiki!

Build Your Own Mema3

This probably won't completely 'work', straight out of the box, but I'll keep it updated. It will need an Ubuntu system with camera, microphone and speakers. Probably a USB webcam + microphone will work for some of it.

First git clone https://github.com/hbarnard/mema.git

Next Docker Installs for Rhasspy, Mimic3 and Node-Red. We are using the host network rather than container network. This means that all the component connections can be configured as localhost and, in principle, everything except external AI will work without any network present. Also, the names are now mema_<something> for docker ps -a convenience etc. etc.

There is, in fact, an install script at ~/mema/install/install.sh but it will not totally configure Rhasspy at the moment, this depends on the configuration of the computer (microphone, speakers etc.). Also there are some hardcoded paths /home/pi in systemd definitions and mema.ini for example.

Rhasspy

docker run -d --network host --name mema_rhasspy --restart unless-stopped -v "$HOME/.config/rhasspy/profiles:/profiles" -v "/etc/localtime:/etc/localtime:ro" --device /dev/snd:/dev/snd rhasspy/rhasspy --user-profiles /profiles --profile en

Mimic3

This is the 'better' text to speech rather than, for example, espeak. It must be configured in Rhasspy as MaryTTS, a cheat, external http.

sudo docker run --network host -d --restart unless-stopped --name mema_mimic3 -v "${HOME}/.local/share/mycroft/mimic3:/home/mimic3/.local/share/mycroft/mimic3" 'mycroftai/mimic3'

Now works on the laptop, speech api is at http://localhost:59125/process some confusion in the documentation about this.

Probably need sudo chmod a+rwx "${HOME}/.local/share/mycroft/mimic3" too. To be investigated.

Node-Red

Docker install is broken on Raspberry Pi Zero (apparently) but should be OK elsewhere:

docker run -d --network host -v node_red_data:/data --restart unless-stopped --name mema_nodered nodered/node-red

General Docker note: You only want -it if debugging otherwise -d. `

Mosquitto

apt install mosquitto mosquitto-dev

Started to use an external instance of this, rather than the one in Rhasspy. Gives more flexbility and also offloads some tasks from the centre. Also can examine and tune messages. Bit more complexity though.

Python3 and Libraries

The modules are now in requirements.txt in the main directory: pip install -r requirements/requirements.txt

Packages

Some confusion here because Ubuntu is beginning to use `snap` rather than `apt`. However most of them are listed in `install.sh`. Also, the current web page launcher is https://github.com/isamert/jaro because xdg-open tends to be flaky on Pi at least. This requires guile (2.0 or 3.0 via apt install) and ./config/associations

Miscellaneous

Use

sudo visudo

and add

 ALL=(ALL) NOPASSWD: ALL

, since docker images run as root but we want

intent_server.service

the rest of the application to run as the user (usually standardised as

mema

now), so, for example `jaro` opens the display as the 'user'. Let's see whether that's a problem for the Pi, too
The screen blanking on the Pi can be turned off via `raspi-config` rather than xset (or maybe it calls `xset`?)