First of all, if you don't know what GrowOnline is, go check out our website :).

Now that you know what you're going to make you'll need some stuff:

• a raspberry pi (all versions should work)
• a 6 relays board
• a DHT22 sensor
• 6 outlets
• 220V to 5V or 120V to 5V adapter (capable of providing 1A)
• An USB wifi dongle
• some wires, a blade, a soldering iron, screws, bolts, a screwdriver, a drill..

Then, you want to wire the system like that:

You have to connect the probe data wire to GPIO 4.

By default the lamp relay is connected to GPIO 5, the fan to GPIO 4, the pump to GPIO 3, the heater to GPIO 2 and the mist maker to GPIO 1.

At this point you may be a bit confused on how to put this all together, so we've made a quick video that should give you and idea of where to start.

After building this, you'll need to install the software.

Start with installing raspbian on your raspberry.

Then connect to the raspberry pi via ssh and type

sudo raspi-config

Select expand filesystem, then finish and finally reboot

Now, plug-in your wifi dongle and configure the wifi by editing wpa_supplicant.conf

sudo nano /etc/wpa_supplicant/wpa_supplicant.conf

Add these lines:

network={
    ssid="Your_SSID"
    psk="Your_wifi_password"
}

First make sure you have root acces

sudo su

Then, run this command

dpkg-reconfigure tzdata && apt-get --assume-yes update && apt-get --assume-yes upgrade && apt-get --assume-yes install git-core && cd /home && git clone git://git.drogon.net/wiringPi && cd wiringPi && git pull origin && ./build && apt-get --assume-yes install apache2 php5 mysql-server libapache2-mod-php5 php5-mysql && cd /home && git clone https://github.com/technion/lol_dht22 && cd lol_dht22 && ./configure && make && cd /var/www/html && rm -rf * && git clone https://github.com/NitroOxyde/GrowOnline-Web-Interface . && sudo nano api/config.php && apt-get --assume-yes install jsvc && cd /home && wget http://growonline.fr/GrowOnline-Java.jar && mkdir /home/err && mkdir /home/log && cd /etc/init.d && wget http://growonline.fr/growonline && chmod 755 /etc/init.d/growonline && update-rc.d growonline defaults && reboot

During the install you'll be prompted to select your timezone, then you'll have to choose a password for mysql. Finally a file will open and you'll have to replace $configPassBdd="root"; by $configPassBdd="yourMysqlPassword";. Save the file by pressing ctrl + x, then y and finally enter.

Now wait a little bit and the Pi should reboot.

Your are done !

First, make sure your raspberry pi is on time

sudo dpkg-reconfigure tzdata

Update it:

sudo apt-get update

sudo apt-get upgrade

First, install git sudo apt-get install git-core

Then, install wiring pi, this will enable us to control the relays

cd /home

sudo git clone git://git.drogon.net/wiringPi

cd wiringPi

sudo git pull origin

sudo ./build

Now, install the web server sudo apt-get install apache2 php5 mysql-server libapache2-mod-php5 php5-mysql

You will be asked to type a password for the database, write it down or remember it.

To read the temperature and the humidity from the sensor, we'll need to install the DHT22 library

cd /home

sudo git clone https://github.com/technion/lol_dht22

cd lol_dht22

sudo ./configure

sudo make

Make sure you can read data from the probe by typing sudo ./loldht

Now that your raspberry pi is set and all the dependencies installed, you need the Web Interface.

cd /var/www/html

sudo rm -rf *

sudo git clone https://github.com/NitroOxyde/GrowOnline-Web-Interface .

Then edit the config file to match your database login and password. (The one you had to remember)

sudo nano api/config.php

Now, you need the java deamon to control all your physical equipment (lamp, fan, pump...)

First, install jsvc, it will let our java program act as a deamon

sudo apt-get install jsvc

Then download the deamon

cd /home

sudo wget http://growonline.fr/GrowOnline-Java.jar

sudo mkdir /home/err

sudo mkdir /home/log

Now download the script to launch the deamon

cd /etc/init.d

sudo wget http://growonline.fr/growonline

sudo chmod 755 /etc/init.d/growonline

sudo update-rc.d growonline defaults

sudo /etc/init.d/growonline start

Connect to your raspberry pi through your web browser and follow the instructions !