Simple Voice Controlled Home Automation


Ever wanted to make your home automatically do what you ask it? In this video, I make a cheap home automation system that you can control with your phone and/or your voice!
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When I was little I always dreamt of
living in the home of the future where everything was automated and voice controlled.
Though the home of the future is becoming more and more of a reality the cost of having such a smart home can
be very pricey. And, frankly, I think I can do it myself much cheaper. So let's see if I'm
right. So here's the basic idea of what I'm trying to create something that can
turn the lights on and off the can be controlled wirelessly either from my
phone or through voice or both and also something that is relatively cheap. Can I
do it? I don't know. So let's start tinkering. In order to remotely turn this lamp on
and off all need something to control the flow of power. One good method of
doing this is by using a "relay". Basically it acts as a switch that is "off"
until an external current is applied which triggers the switching mechanism
turning it "on". I will need to put this relay somewhere between the plug in the power
source which means I'll be messing with the dangerous amount of electricity. So I
opted to go the safer route in just buy a premade 120 volt power cable with a
relay already built in. Alright, the next thing to do is figure out how to trigger it
going to require some type of device that I can program to trigger the relay
whenever i send it a command. My go to device for such a task is an Arduino which
is a simple to use microcontroller. So what I can do is connect these two relay
terminals to these two Arduino terminals and then i cant connect the Arduino to a
computer and upload this code. This code tells the Arduino that whenever I
send it a "1" from my computer it turns lights on. And whenever i sended it a "2" it
turns the lights off. And it totally works! But it's not a wireless solution. To
solve that problem I opted to go with Bluetooth for its short-range proximity and
its easiness to pair with Android devices. Connecting it to an Arduino was
equally as easy. You just connect the "TX" to "RX" and the "RX" to "TX" and the "VCC" to
"power" and the "ground" to "ground". Then I tweaked the
code a little bit to allow for commands through the Bluetooth and that was it
for the Arduino side. Now on to the next challenge which is controlling it from the
Android side. What I ended up doing was making an app using "App Inventor" that
connects the device through bluetooth and can send it commands. I made it so
that if the "on" button was pressed, it would send a value of "1" to the Arduino.
And if "off" was pressed, it sends it "2". As an added bonus, I found that I could also add voice
recognition using "App Inventor". I made it so that if the word "on" was spoken, it sends the
value of "1" and when "off" is spoken, it sends the value of "2". Then I put
everything in a nice little case and tested it out. You can download my app from the App Store use the link
below. Or you can watch my behind the scenes video if you want to make your
own. If you have any ideas that you like to see please submit your vote for your
favorites at Again you can click here to watch
my behind the scenes video. Or you can click here to watch more of my
automation videos. If you enjoyed this video and would like to support my channel, please
feel free to like, subscribe, comment, follow me on social media, or donate at Alright,
that's it for this tutorial. For more go to

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