Implements : Automation Hub

Hostname : pixie0

Make : Raspberry Pi 2

Model : B+

Software : Debian Jessie, Home Assistant

Purchased : 2015-05-14 £42 (kit) from CPC

Delivered : 2015-05-15

Table of Contents

Static ttyUSB for zwave and rfxcom

Aeonlabs Z-Stick S2 is /dev/ttyUSB21, Rfxcom is /dev/ttyUSB22

/etc/udev/rules.d/99-usb-serial.rules: 

SUBSYSTEM=="tty", ATTRS{idVendor}=="10c4", ATTRS{idProduct}=="ea60", ATTRS{serial}=="0001", SYMLINK+="ttyUSB21"
SUBSYSTEM=="tty", ATTRS{idVendor}=="0403", ATTRS{idProduct}=="6001", ATTRS{serial}=="A1XHAXCI", SYMLINK+="ttyUSB22"

RTC

https://raw.githubusercontent.com/piface/PiFace-Real-Time-Clock/master/install-piface-real-time-clock.sh

  • Enable I2C
  • apt-get install i2c-tools

Home-Assistant mysql Database

CREATE DATABASE hass;
GRANT ALL PRIVILEGES ON hass.* TO 'hass'@'%' WITH GRANT OPTION;
FLUSH PRIVILEGES;

Fix Host Blocked error

https://dev.mysql.com/doc/refman/5.7/en/blocked-host.html 

mysql> SET GLOBAL max\_connect\_errors=10000;
mysql> flush hosts;

OpenZWave

Upgrading

sudo su hass
. /srv/hass/hass_venv/bin/activate
cd /srv/hass/src/python-openzwave
git pull origin
cd openzwave
git pull origin
cd ..
make build
make install

Upgrading via python-openzwave

Using openzwave dev branch from github: 

. /srv/hass/hass_venv/bin/activate
pip install python_openzwave --install-option="--flavor=dev" --no-deps --ignore-installed --no-cache-dir

LetsEncrypt

Certbot is now installed as a package.

Renewing

  1. Leave nginx running
  2. Allow iptables 80 tcp input

  3. Enable 80 port forward on router to pixie3

    uci show firewall.@redirect[4].name  # confirm the key
uci set firewall.@redirect[4].enabled=1
uci changes
uci commit firewall
reload_config

  4. Run sudo certbot renew --nginx

  5. Check cert openssl x509 -text -in /etc/letsencrypt/live/ha.home.whalebarn.com/cert.pem

  6. Disallow iptables 80 and disable 80 port forward

    uci show firewall.@redirect[4].name  # confirm the key
uci set firewall.@redirect[4].enabled=0
uci changes
uci commit firewall
reload_config

  7. Restart nginx

Renewing from Git (Obsolete)

As above except:

  1. Run sudo ~pi/src/letsencrypt/certbot-auto renew --nginx
  2. Check cert openssl x509 -text -in /etc/letsencrypt/live/ha.home.whalebarn.com/cert.pem

Fix nginx startup

Missing /var/log/nginx

Fails to start after boot because /var/log/nginx hasn't been created

Add to

/etc/systemd/system/multi-user.target.wants/nginx.service ExecStartPre=/bin/bash -c 'mkdir -p /var/log/nginx; /usr/sbin/nginx -t -q -g "daemon on; master_process on;"' to create the log dir and run nginx config test

New solution. Copy and customize nginx.service: 

[Unit]
Description=A high performance web server and a reverse proxy server
After=network.target

[Service]
Type=forking
PIDFile=/run/nginx.pid
PermissionsStartOnly=true  # do the mkdir as root
ExecStartPre=-/bin/mkdir -p /var/log/nginx   # create log dir, tolerate failure
ExecStartPre=/usr/sbin/nginx -t -q -g 'daemon on; master_process on;'
ExecStart=/usr/sbin/nginx -g 'daemon on; master_process on;'
ExecReload=/usr/sbin/nginx -g 'daemon on; master_process on;' -s reload
ExecStop=-/sbin/start-stop-daemon --quiet --stop --retry QUIT/5 --pidfile /run/nginx.pid
TimeoutStopSec=5
KillMode=mixed

[Install]
WantedBy=multi-user.target

Can't connect to Upstream

Make nginx depend on home-assistant startup. 

sudo mkdir -p /etc/systemd/system/nginx.service.d
sudo vim /etc/systemd/system/nginx.service.d/override.conf

Create /etc/systemd/system/nginx.service.d/override.conf: 

[Unit]
Wants=home-assistant.service
After=home-assistant.service

Python with PyEnv

Manage python version upgrades with pyenv.

http://www.knight-of-pi.org/pyenv-for-python-version-management-on-raspbian-stretch/ 

sudo apt-get install bzip2 libbz2-dev libreadline6 libreadline6-dev libffi-dev libssl1.0-dev sqlite3 libsqlite3-dev -y
git clone git://github.com/yyuu/pyenv.git .pyenv
echo 'export PYENV_ROOT="$HOME/.pyenv"' >> ~/.bashrc
echo 'export PATH="$PYENV_ROOT/bin:$PATH"' >> ~/.bashrc
echo 'eval "$(pyenv init -)"' >> ~/.bashrc
. ~/.bashrc

System-wide install of 3.8.5: 

mkdir tmp
sudo su  # otherwise TMPDIR doesn't affect the pyenv subshell...
TMPDIR=`pwd`/tmp .pyenv/plugins/python-build/bin/python-build 3.8.5 /usr/local/python-3.8.5/

Zwave2Mqtt

Chose this over ozwdaemon (which requires a custom build of QT 5.12!)

Build openzwave

Version 1.6+. User pi 

mkdir -p src/open-zwave
git clone https://github.com/OpenZWave/open-zwave.git
# tag v1.6 failed with gcc 6.3
git checkout -b live master
make
sudo make install

Install node and npm

User hass 

sudo apt-get install npm
# npm config set registry https://registry.npmjs.org  # unnecessary?
# https://github.com/nebrius/raspi-serial/issues/8
sudo npm install -g npm  # upgraded to 6.14.8, old /usr/bin/npm still 1.4.21
sudo npm install -g n
sudo n stable # upgraded to node v12.18.4
 

Build zwave2mqtt

User hass 

mkdir -p src/zwave2mqtt
# though actually I just pushed v4.0.3 and "live" from canard
git clone https://github.com/OpenZWave/Zwave2Mqtt
npm install  # takes a long time because it's freaking 571MB of stuff
npm run build

Other issues

  • After building with node v8 then upgrading to node v12 had to reinstall fibers npm install fibers before doing npm run build
  • More version issues so npm rebuild

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