OpenVPN on a Raspberry Pi

Sorry if lately I'm publishing really few posts, but this year I've been quite busy planning my weddings, so I have almost no time for everything else...

Anyway in these days I created a simple VPN server on one of my Raspberry Pi (a model 2 B). This small project has been realized for the honeymoon. Let me explain why, before looking at the procedure.

Adding a sensor zone to Sphaera

My Sphaera project is  nice and useful when used alone, but I designed it to be expandable quite easily by adding more Raspberry Pis to the LAN

Also, with the new extremely low cost Raspberry Pi Zero You can add several expansions at an affordable price without sacrifying system performance, as this new board has the same performances of an A+ model.

In this article I will show you just one example of configuration, but adding a new Raspberry Pi would be almost the same for any number of them.

It will be a short and surely not complete description, but could give you a starting point for building something similar. Anyway if you have some question about it, just ask.

Raspberry Pi and astronomy

This time I selected a topic a bit different from usual. After all the blog is about experiments and not only home automation, with RPi...

Since I was a child I've always loved astronomy. I own a small telescope and I took several photos with film cameras, but now I can go a step further thanks to my RPi.

Checking devices connected to the LAN

One thing that could be useful is checking if a device is connected to your LAN at home.

This is a quite simple task and could be used for several goals, from sending you a Whatsapp greeting message when you arrive at home to inform you in case of undesired connection to your own wi-fi network.