James Turner writes in this month's IEEE Spectrum of a neat project, and if you are looking for something to do over the long weekend it could be a fun one too: how to turn your iPad into a fully-functioning oscilloscope, and one that you take with you to impress your friends and be the uber-nerdy hit at parties too.

There are separate iPad and iPhone apps, you'll need iOS v3.1.3 or later to run it.

Obviously, this little project isn't going to replace a $5000 lab instrument, but for checking small signal frequencies (Turner says less than 5MHz is fine) it is a peach. The kit costs $300 and you can download the app from iTunes store to check out its UI before you pony up your cash.