Electronic enthusiasts and Raspberry Pi users may be interested in a new PCB ruler created by Ian Dunn. The PCP ruler features plenty of useful annotations, equations and Raspberry Pi GPIO references.

Basically, the core technology of a Pi has been repackaged and released in a new form, aimed at those creating their own PCB. You can now fit the core ... and interfaces are available as compared to ...

and it’s called the SnapOnAir Raspberry Pi Zero PCB. This printed circuit board will allow you to attach a Raspberry Pi Zero and turn it into something that resembles a BlackBerry smartphone ...