DIY Life shows you how to connect analog gauges to your PC:
These old analog gauges were in a one-dollar junk box at the market. Before there were LCD screens in everything, before LEDs, data was shown on these.
In a sort of retro mash-up, we'll make a USB device that displays PC status info on these gauges. The gauges can show CPU and memory usage, processor voltage -- just about any numerical data typically displayed on small HD44780 based LCD character displays commonly used in PC case mods..