Lets Encrypt is a new Certificate Authority (CA), run for the public’s benefit by the Internet Security Research Group (ISRG). At the time of writing it’s currently in Beta and is due to go public in December 2015. Update: Lets Encrypt went into public -beta on December 3 2015. I have updated this article with […]Read more "Centralizing Certificate Management of LetsEncrypt with a Raspberry PI"
Some time ago I created a weather station using a Raspberry PI and an off the shelf weather station, connecting the two via USB. However, for some time not I’ve been meaning to create a weather station from scratch – i.e. one or more Raspberry PI’s which connect to the network (via Ethernet or WiFi) […]Read more "Connecting an Arduino to a Raspberry PI using I2C"
Weather webcams are always popular and it is easy and free to set one up yourself. This article will show how to setup a simple USB webcam to produce still images and serve them on a local apache webserver.Read more "Setting up a Weather WebCam on Linux"
I had this problem of debugging some xml but when reading the output of some log4j it was almost impossible to read so I needed some way of prettifying the xml quickly. For this example I have the following xml: So how do we pretify this in emacs? Well the first thing to do is […]Read more "Formatting xml in emacs"
In the first article I covered how to install a weather station on a Raspberry PI. In the second part I’ll cover how to get it to upload data on an hourly basis to a website using FTP. Getting the station to run hourly First we need to get the station to run hourly. To […]Read more "Installing a USB Weather Station on a Raspberry PI part 2"
One of the reasons for having multiple PI’s was to have one take over duties from an aging ITX based Linux box of reading from a USB Weather station and uploading the data to both it’s website and WeatherUnderground. Unfortunately this project got pushed forward when, last Thursday morning, the ITX box decided to die […]Read more "Installing a USB Weather Station on a Raspberry PI Part 1"
The reason I had to do this was because I needed video4linux to get a webcam working for a forcoming series of posts connecting a telescope to the pi. Although the connection to the telescope wasn’t a problem, the customized webcam I have needed it. Here I compile the kernel on a more powerful linux […]Read more "Compiling a Kernel on the Raspberry PI"