Arduino based Android Smartphone controlled DC Appliances
Hey
folks, I haven't been writing for a long time. I guess, a learner
like me takes his time to learn things and then apply in its proper
place. The last four to five months were wonderful, because I got to
learn working on Android. Since I am a hardware man, I tried in my
own way an integration of android and hardware, and guess what, the
first thing that would probably hit is a “Home Automation”
application.
Now,
what is a Home Automation ? Well, other sobriquet of home automation
is “Smart Home”. Today, almost more than half the population of
earth uses smart phones, and the number is increasing day by day.
These small hand held device is used not only to contact people but
surf the net, do office work and entertainment. So day by day, our
dependency on these devices are increasing and I say it is for a
greater good, because these devices are portable and we keep it with
us most of the time. What, if we could control our home appliances
like lights and fans with these devices too. I found that we could
actually by integrating these devices with hardware. We can always
always design an embedded systems with the help of microcontroller
and get it communicate with deevices like a bluetooth modem. Our
smart phones have inbuilt bluetooth sockets and we can make use of
some of the apps which can send data over the bluetooth and thus with
the help of the given data we can control the lights fans we have
designed in our embedded systems.
The
application I have designed is shared here and also right now been
published in the play store. My worthy collegue Chaman Jain and my
teacher Sudipta Chatterjee has
helped
me a lot and time to time has given me required motivation to
designed this whole project. First I will let you know how to make
the the circuit of the control systems I have designed.
Things
you gonna need:
a.
Arduino Mega (Development Board)
b. Bluetooth
Modem (HC-05)
- An RGB LED.d. A DC fane. A Breadboard along with some hook up wiresf. an Android powered smart phone (Android 4.0 or above)
So below is the
circuit diagram. I have used a common cathod RGB LED, if you want
you can use a common anode LED too. No issue as such on the choice
of the LED.
The GND pins of
the RGB LED, DC fan and the bluetooth modem is connected to the
ground. The positive pin of the DC fan is connected to the pin 8 of
the arduino. Red pin of the RGB is connected to pin 9, green to pin
10 and blue to pin 11. The RX pin of the bluetooth modem is connected
to pin 15 (TX1 of Arduino Mega) and similarly TX pin is connected to
pin 16 (RX1 of Arduino Mega).
This app is now published in Play store, get it from the following URL:
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