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.
One more thing you should be aware of, pilots are given the cargo manifest by the load master before the flight. Sometimes, the cargo contains temperature sensitive loads and thus the crew can adjust the temperature of the cargo hold. This holds true for cargo and passenger aircraft. For example, if transporting live animals the temperature is increased above the normal range.