A wireless access point is required for connecting wireless devices to a network. Most home networks rely on one wireless router combination device to fill this role. A home automation controller enables low-power wireless communications with simple, non-data-intensive devices such as light bulbs and locks.
I fly passenger Airbus A330s and A340s. I've never flown a cargo only aircraft so I can only answer about the passenger Airbus. We can set the temperature in the back cargo compartment (the hold or the bulk we call it) between 5 degrees Celsius and 25 degrees Celsius. The normal position for the selector is around 15 degrees Celsius.
So why do airlines have temperature restrictions? While many airlines have Weather Embargoes during the summer/winter months, it is not because of the cargo hold temperatures. Airlines that are not pet friendly take all of their cargo to the plane at one time. Animals often end up waiting on the tarmac while the cargo is loaded or unloaded.