Jarvis

"just another rather very intelligent system"
Jarvis is an open-source AI-based extendable home assistant

Hardware/Software used

• Downloading the Jarvis Code
• Packages to Install
• ReSpeaker 4-Mic Array
• Snowboy (hotword)
• PocketSphinx (speech-to-text)
• Snips-NLU (language understanding)

Installation

Downloading the Jarvis Code

First, you'll need to create a folder to install Jarvis in. You can use any directory, but make sure it's readable and writeable.

sudo mkdir /jarvis
sudo chown pi:pi /jarvis
git clone https://github.com/open-jarvis/jarvis /jarvis

Packages to install

sudo apt update -y
sudo apt upgrade -y
sudo apt install -y git python3 python3-pip mosquitto
pip3 install paho-mqtt gpiozero spidev psutil

ReSpeaker 4-Mic Array

Installation instructions can be found here:
https://wiki.seeedstudio.com/ReSpeaker_4_Mic_Array_for_Raspberry_Pi/

Install the Audio drivers

sudo apt update -y
sudo apt upgrade -y
sudo apt install git -y
git clone https://github.com/respeaker/seeed-voicecard.git
cd seeed-voicecard --compat-kernel
sudo ./install.sh
sudo reboot

Change the audio output to 3.5mm jack

sudo raspi-config
# Select 7 Advanced Options
# Select A4 Audio
# Select 1 Force 3.5mm ('headphone') jack
# Select Finish

Activate the LED programmable interface

sudo raspi-config
# Go to "Interfacing Options"
# Go to "SPI"
# Enable SPI
# Exit the tool

Test the setup

arecord -Dac108 -f S32_LE -r 16000 -c 4 hello.wav
aplay hello.wav

Snowboy

If the installation fails, check out http://docs.kitt.ai/snowboy/ (shut down on 31st Dec 2020) or https://github.com/f1ps1/snowboy (backup of the original repository) for instructions!

Installing dependencies

sudo apt-get install -y python-pip python3-pip python-pyaudio python3-pyaudio sox swig libatlas-base-dev gcc g++ make wget pulseaudio
pip install pyaudio webrtcvad
pip3 install pyaudio webrtcvad

Compiling Snowboy

cd <jarvis-installation-path>/engine/lib	# <jarvis-installation-path> should be /jarvis
git clone https://github.com/open-jarvis/snowboy
cd snowboy
sudo python3 setup.py install
cd swig/Python3
make

PocketSphinx

Installation instructions are available here:
https://howchoo.com/g/ztbhyzfknze/how-to-install-pocketsphinx-on-a-raspberry-pi

Downloading CMUSphinx and PocketSphinx

wget https://sourceforge.net/projects/cmusphinx/files/sphinxbase/5prealpha/sphinxbase-5prealpha.tar.gz/download -O sphinxbase.tar.gz
wget https://sourceforge.net/projects/cmusphinx/files/pocketsphinx/5prealpha/pocketsphinx-5prealpha.tar.gz/download -O pocketsphinx.tar.gz

tar -xzvf sphinxbase.tar.gz
tar -xzvf pocketsphinx.tar.gz

Compiling CMUSphinx and PocketSphinx

sudo apt install -y bison libasound2-dev libpulse-dev swig

cd sphinxbase-5prealpha
./configure --enable-fixed
make
sudo make install

cd ../pocketsphinx-5prealpha
./configure
make
sudo make install

Install PocketSphinx for Python

pip3 install pocketsphinx
# pocketsphinx is available as a module now:
# import pocketsphinx

Snips-NLU

Installing Snips-NLU and a language pack

Instructions

sudo apt install -y libatlas3-base=3.10.3-8+rpi1 libgfortran5
cd /home/pi
wget --content-disposition https://github.com/jr-k/snips-nlu-rebirth/blob/master/wheels/scipy-1.3.3-cp37-cp37m-linux_armv7l.whl?raw=true
wget --content-disposition https://github.com/jr-k/snips-nlu-rebirth/blob/master/wheels/scikit_learn-0.22.1-cp37-cp37m-linux_armv7l.whl?raw=true
wget --content-disposition https://github.com/jr-k/snips-nlu-rebirth/blob/master/wheels/snips_nlu_utils-0.9.1-cp37-cp37m-linux_armv7l.whl?raw=true
wget --content-disposition https://github.com/jr-k/snips-nlu-rebirth/blob/master/wheels/snips_nlu_parsers-0.4.3-cp37-cp37m-linux_armv7l.whl?raw=true
wget --content-disposition https://github.com/jr-k/snips-nlu-rebirth/blob/master/wheels/snips_nlu-0.20.2-py3-none-any.whl?raw=true

sudo pip3 install scipy-1.3.3-cp37-cp37m-linux_armv7l.whl
sudo pip3 install scikit_learn-0.22.1-cp37-cp37m-linux_armv7l.whl
sudo pip3 install snips_nlu_utils-0.9.1-cp37-cp37m-linux_armv7l.whl
sudo pip3 install snips_nlu_parsers-0.4.3-cp37-cp37m-linux_armv7l.whl
sudo pip3 install snips_nlu-0.20.2-py3-none-any.whl

sudo python3 -m snips_nlu download de

Creating a dataset

In order to use the Snips-NLU engine we have to create a sample dataset. This dataset should look like the following:

{
	"entities": {
		"color": {
			"automatically_extensible": true,
			"data": [],
			"matching_strictness": 1,
			"use_synonyms": true 
		},
		"room": {
			"automatically_extensible": true,
			"data": [
				{
					"value": "garden",
					"synonyms": []
				},
				{
					"value": "garage",
					"synonyms": []
				}
			],
			"matching_strictness": 1,
			"use_synonyms": true 
		}
	},
	"intents": {
		"turn_lights_on": {
			"utterances": [
				{
					"data": [
						{ "text": "turn on the lights in the " },
						{
							"entity": "room",
							"slot_name": "room",
							"text": "kitchen"
						}
					]
				}
			]
		}
	},
	"language": "en"
}

After the dataset is finished, we can let Snips-NLU train it:

snips-nlu train dataset.json output_model