In fact, it's one of the reasons I write about hardware to this day, and one person turning their rotary phone into a Bluetooth headset might just be one of the best Frankenstein's monster-style ...

We have seen a few projects that convert a rotary dial for use with modern technology, but this one adds a new twist to the mix: it uses Bluetooth 4.0. [Silent] used a Nordic Semiconductor NRF51 ...