The APC Smart-UPS series of UPS devices allows you to power servers and switches when there is a power failure in the grid. When the UPS is running on batteries, you want your servers to be notified and properly shutdown.
In a previous article we looked at the Arduino. Now we will look at an (almost) Arduino compatible clone, the JeeNode. It is a bit smaller and cheaper than the original version and operates at 3.3V instead of 5V. This
The Arduino is an open-source electronics prototyping platform based on flexible, easy-to-use hardware and software. It features an IDE that allows you to program the Arduino using a standard USB cable. Several shields exist that extend the functionality of the
In this article we will look at my meter cupboard and the meters inside it. In future articles we will see how I used a microcontroller and some sensors to meter the meters (at the time of writing the electricity
After installing a brand new Ubuntu 9.04 Server, add the squeezecenter repository to /etc/apt/sources.list deb http://debian.slimdevices.com stable main Then tell apt to reload everything: sudo apt-get update Now try to install squeezecenter: sudo apt-get install squeezecenter The following seems to
Characteristics I wanted to make my own Network Attached Storage (NAS) device with the following characteristics: It should have lots of disk space and new disk space should be easy to add. The primary storage should be redundant: if one
Introduction On this page you can find information about the Personal Video Recorder I’ve built. I wanted to replace my old VCR with a more versatile machine with higher quality audio and video. There are commercial systems out there that