I gave up on using my Pi as a VPN'd NAS, since the CPU is too slow to handle OpenVPN (see here Low bandwidth internet over VPN).
So I want to set it up to do (all of) the following:
- Control a light switch
- Switch my speaker system between either of two audio inputs (laptop or desktop)
- Link to my Android phone through an app, allowing me to control the Pi to do (1) and (2) through my phone
I have a fair amount of programming expertise, but I'm pretty inexperienced when it comes to hardware/electronics, so I'd really appreciate some help -- specifically whether you think it's possible to build interfaces on the Pi that allow me to do the above.