The Journal is a component of systemd that is responsible for viewing and management of log files.

My dad was a maker. He was a professional designer and a classically trained painter. Back then, he was designing and building window displays for Oxford Street shops. One of his things were paper sculptures. He made galleons, desert islands, trees, and fairy tale characters of exquisite detail out of carefully cut and folded snow-white sheets of fine card.

The kernel module simplifies access to the BMP180 sensor, allowing you to record the temperature and air pressure with shell commands.

Whenever you're traveling, there's always a chance you could lose your camera, so you should save your pictures as you go. The Pi image bank can save images and even display the pictures via a web server.

You can access and control the Raspberry Pi camera module from your favorite browser using the RPi Cam Web Interface software.

So, you have some new kit for your Arduino – maybe some sensors or ICs – but programming them is clumsy and painful. Don't despair: You can make your life easier by writing your own drivers!