If you have read the article I published recently about smart homes, you are now a little familiar with smart homes and how the whole system works.
You must have known that smart homes are based on 2 important things:
Making devices collect information from environment (like by sensors)
Thinking or better said analyzing information
Doing the task that they are supposed to do in such a situation
And more important part: communicate with other devices in the home.
In fact, home automation is all about giving ability of “talking together” to devices.
In this article we want to talk about the most famous communication protocols and systems available today.
As you surely know, it is a wireless protocol that has decent range (extendable) and fast. It needs router which is available in all houses with internet.
Besides, other protocols need WiFi in order to connect to the internet for far distance controls by internet.
The vary wide range of bandwidth that is not needed for home automation and high usage of power.
While WiFi supports more devices, you will not be able to connect hundreds of devices at once.
It is the oldest in the market and is transmitted via the house power lines and the cheaper price of it attracts lots of consumers.
X10 supports up to 256 devices.
It is not as fast as other newer protocols.
X-10 comes with its dependence on power lines, which can produce additional noise via power spikes. Therefor creating false commands is possible.
ZigBee (IEEE 802.15.4)
Zigbee gives equal stakes to all devices in communication (mesh network).
It is simpler than WiFi or Bluetooth, smaller and even cheaper. Low-power (limits transmission distances to 10–100 meters) and low-latency and
Low-bandwidth can be mentioned too.
Note: UNLIKE WiFi, tow devices with ZigBee chips may not be able to operate with eachother .
Just like ZigBee, it is low latency, low power and low bandwidth protocol but in a higher price!
A combination of wired and wireless communication will be abled by Insteon. All nodes in an Insteon mesh network can talk to each other and interestingly it is compatible with X10 which means you can use some cheap X10 devices to fill out gaps in your system.
Insteon is much faster than X10.
Bluetooth version 4 can work with IOT (internet of things) which enables you to connect to your home’s devices without any need to reconnect manually each time!
At the end, wich one should you go with? If you’re just now dipping your toes into home automation, we recommend going with either Z-Wave or ZigBee. If your home is outfitted with an older x10 system, go with Insteon. So long as you pick one ecosystem and use devices within it, any of these three standards should be sufficient.