Bryan E Cornell wrote:

> Would it be possible to have an on/off switch for the module so that
> when you are not using it, it doesn't suck up the 300mA

I'd rather have it off the power supply to begin with. Who knows what
noise it will introduce to it.

Power jack on the front panel, or with a little DIY you should be able
to fit the wallwart somewhere in the case and tap off the AC power...