From "The mad science of an insane ginger" blog comes a simple project of interest to the PC performance enthusiasts. Using an Arduino and two analogue panel meters, the CPU load and memory usage can be displayed using information sent from a python script running on the PC. Analogue panel meters can be driven quite easily using pulse-width modulation and this is also the case in this project. And by making your own background images for the meters and a nice housing, you can turn this into a professional project.
For more information, the Arduino sketch and python code head over to the article here. And we're on twitter and Google+, so follow us for news and product updates as well.
If Arduino is new to you, a great start is our Freetronics Eleven - the Arduino-Uno compatible with low-profile USB socket, onboard prototyping space and easy to view LEDs: