PWM on Raspberry Pi

[0xcaff]

It doesn't look like PWM is implemented for the Pi.

https://github.com/kidoman/embd/blob/bfcd1345fe4e3d17ca82475c0c2f3d53120f87a9/host/rpi/rpi.go

This library does it:

https://github.com/stianeikeland/go-rpio/blob/master/rpio.go

See also #34