OBD-II became the mandatory I/O diagnostic port on cars starting around 1996 in the US. Considering that the interface consists of a couple of I/O lines, serial/usb adapters have been ridiculously expensive for quite a while – especially newer USB versions. [Renan] sent in this PIC18F2450 OBD-II interface. The designer says he can provide boards for just over $6 and … Read the rest
[Dancerman] sent us a couple pdfs covering the Navy’s research on railguns which might show up on new platforms like the DD(X): first is NRAC’s Electromagnetic Gun Technology Assessment, second is slides from the Annual Gun & Ammo Symposium which covers the problems encountered when scaling a system up for ship use.
I was pretty tired of railguns … Read the rest