These include a 24 volt AC power wire ... is enough to build a thermostat. As you all know, however, I have committed to a building a Raspberry Pi into every room in my house, and I’m using ...

This is used for thermostat wiring and other similar types of control ... a power-limited circuit and communications cable for whole-house audio systems. It’s approved for in-wall use.

Fair warning: any homeowners who have thermostats similar to the one that nearly burned down [Kerry Wong]’s house might be in ... remember the aluminum wiring debacle? Electrical fires are ...