IoT-raspberry

Home control client unit that works together with IoT Server.

Raspi Config

raspi-config
1 -> Expand Filesystem
5 -> Internationalisation Options -> Change Locale (z.B. de_DE.UTF-8 UTF-8" -> "C.UTF-8"), Change Timezone (z.B. Europe -> Berlin)
6 -> Enable Camera
9 -> Advanced Options -> A4: SSH, A5: Device Tree, A6: SPI, A7: I2C
Finish & Reboot

Change keyboard layout

nano /etc/default/keyboard

Change XKBLAYOUT to whatever country code you need. save & reboot

XKBLAYOUT="de"

Establish a wifi connection using a static ip

Fully optional and only necessary when you want to have a static address and wifi.

Since debian jessie, most of the guides you will find in the internet are obsolete as dhcpcd and wpa_supplicant is used. No more /etc/network/interfaces. Use https://www.raspberrypi.org/documentation/configuration/wireless/wireless-cli.md and http://www.amazon.de/EDIMAX-EW-7811UN-Wireless-Adapter-IEEE802-11b/dp/B003MTTJOY

wifi connection

nano /etc/wpa_supplicant/wpa_supplicant.conf

Add to file (on bottom):

network={
   ssid="your_ssid"
   psk="your_password"
}

static ip

nano /etc/dhcpcd.conf

Add to file (on bottom):

interface wlan0
   static ip_address=192.168.0.70/24
   static routers=192.168.0.1
   static domain_name_servers=192.168.0.1

reboot

Firmware Update

apt-get update
apt-get upgrade
wget https://raw.githubusercontent.com/Hexxeh/rpi-update/master/rpi-update -O /usr/bin/rpi-update
chmod +x /usr/bin/rpi-update
rpi-update
reboot now

Essentials

Don't skip this! These tools are basically necessary for everything else later on.

apt-get update
apt-get install -y build-essential git gpac mpg321 omxplayer python-dev libboost-python-dev python-pip python-smbus i2c-tools

Node 6 (or above)

curl -sL https://deb.nodesource.com/setup_6.x | sudo -E bash -
apt-get install -y nodejs

Wiring Pi

cd /opt
git clone git://git.drogon.net/wiringPi
cd wiringPi
./build

Install ffmpeg

Required for sound recording and other media stuff.

apt-get install -y libav-tools
ln -fs /usr/bin/avconv /usr/bin/ffmpeg

put tmpfs onto ram

Well suited for temporary logfiles, so the SD card doesn't wear so fast.

nano /etc/fstab
tmpfs /tmp tmpfs nodev,nosuid,relatime,size=300M 0 0
reboot now

Set up the IoT-raspberry client itself

... finally ... ;-)

git clone https://github.com/d89/IoT-raspberry.git /var/www/IoT-raspberry
chmod +x /var/www/IoT-raspberry/actors/*
chmod +x /var/www/IoT-raspberry/sensors/*
chmod +x /var/www/IoT-raspberry/update
cd /var/www/IoT-raspberry/client
npm install

Configuration

main configuration

cd /var/www/IoT-raspberry/client
cp config.js.sample config.js
nano config.js

• serverUrl: base url of the IoT Server to connect to
• clientName: how your Raspberry reports itself to the server
• basePath: where you installed your IoT-raspberry (if you followed this guide, it'll be /var/www/IoT-raspberry)
• mediaBasePath: Where audio files are stored. Create this folder, if not already existent

Launch

for a quick launch, while you are connected via SSH:

cd /var/www/IoT-raspberry/client
node index.js

For a more sophisticated operation, use a service autostarting after reboot.

---

Register as a service

npm install -g pm2
cd /var/www/IoT-raspberry/client && pm2 start index.js --name iot-client && pm2 startup

restart service

pm2 restart iot-client
pm2 stop iot-client

logs and monitoring

pm2 logs iot-client
pm2 show iot-client
pm2 list iot-client
pm2 monit iot-client

See http://pm2.keymetrics.io/docs/usage/quick-start/

Modules

Congratulations! You just set up the basic installation of the Raspberry IoT Client. By default, you are now able to control the following actors and read the folliwng sensors via the IoT Server web interface. These don't require any hardware sensors to be plugged to your Raspberry, so this configuration runs "out of the box".

Actors

• scenario (bundle actors together to a scenario, like "coming home" -> turn lights on, turn music on, turn on TV)
• http (execute HTTP POST and GET requests)
• push (send push notifications via the IoT Server)
• mail (send mails via the IoT server)

Sensors

• cputemp (measure the current CPU temperature)
• date (send the current date to the IoT Server for being able to trigger conditions time driven)
• time (send the current time to the IoT Server for being able to trigger conditions time driven)
• load (current system load)
• mem (current memory usage)
• diskfree (current disk usage)
• reachability (reachability of a certain IP in your network. Useful for detecting if you are at home, when you put your smartphone IP here)

The IoT Client comes with lots of modules that you can enable in your config, when you have the corresponding sensors / actors connected to your Pi. Go see the full documentation of the available modules.