Archivi categoria: datalogging

Anemometer and sensors logging, 3: build up the server

Now that your system is on, able to be controlled via VNC, it is time to install apache2 and MySQL, the webserver and the database.

This is really not difficult, the packages are so well known you can find a lot of guide on the web.
Largest part of this tutorial is taken quite as-is from here, leading to EmonCMS installation (which will be the next step, be quite!)

Let’s start!
Open a terminal and type

sudo apt-get install apache2 libapache2-mod-php5 php5-gd php5-json php5-mysql php5-curl php5-intl php5-mcrypt php5-imagick

then

sudo apt-get install mysql-server mysql-client php5 libapache2-mod-php5 php5-mysql php5-curl php-pear php5-dev php5-mcrypt php5-json git-core redis-server build-essential ufw ntp
sudo apt-get install mysql-server
sudo pear channel-discover pear.swiftmailer.org
sudo pecl install channel://pecl.php.net/dio-0.0.6 redis swift/swift

You have got to wait some minutes, Cubieboard is not so speedy! After that:

sudo sh -c 'echo "extension=dio.so" > /etc/php5/apache2/conf.d/20-dio.ini'
sudo sh -c 'echo "extension=dio.so" > /etc/php5/cli/conf.d/20-dio.ini'
sudo sh -c 'echo "extension=redis.so" > /etc/php5/apache2/conf.d/20-redis.ini'
sudo sh -c 'echo "extension=redis.so" > /etc/php5/cli/conf.d/20-redis.ini'
sudo a2enmod rewrite

Now you need to change some permissions. Depending on which distro you are using it changes a bit, as follow.
If you are using Debian Wheezy in a terminal type

sudo pluma /etc/apache2/sites-available/default

else, if you use Debian Jessie or Ubuntu

sudo pluma /etc/apache2/apache2.conf

A text file will be shown, somewhere you can find

AllowOverride None

under <Directory /> and under <Directory /var/www/> .

Change it to

AllowOverride All
apache changes

Save and exit, then restart the web server:

sudo service apache2 restart

If everything is right, opening your preferred web browser on your PC and typing

localhost

should show you Apache2 greetings!

localhost

You can also activate some kind of dynamic DNS, just like noip.com (free) or dyndns (not free), in order to have a domain associated to your router. Then setting up port forwarding on your router and specific IP address inside your home network will do the job, you will be able to access your webserver on Cubieboard simply typing your domain name in a browser, wherever you are.
But this is more than what this tutorial aims to, if you wanna now more…Google is your friend! or contact me!

Anemometer and sensors logging, 1

I’m starting here a few articles about our experiences in datalogging wind data and generic sensor data.
Since the VentolONE team origins, before everythings started, I knew the first thing you need to know concerning wind turbines is how much wind is available, and which kind: constant, gusts, etc.

In early days in 2006 I didn’t know so much about microcontrollers: I had just a few knowledge in electronics coming from my master degree in mechanical engineering. Not so much, really.

After some tries with some friends of mine I understood I had to build by myself a datalogging system, the way I wanted it to be:

  • open-source (code)
  • open-hardware (where possible)
  • simple, everyone could build it
  • reliable, not a funny joke
  • able to send data from wherever to wherever
  • customizable

Now I can say: here we are!

As far as you know, VentolONE team had some trouble with its start-up, founded and closed in one year, without producing nothing more than disappointment and quarrels.
Well, during that period I did something, keeping on my interest in datalogging data from Africa.
Following the attemps with Arduino Yun (may 2014) I tried new ways, cheaper and promising.

Now it is time to write it down where I finally came!

EmonCMS and datalogging

(to be continued…)