Bluetooth Home Automation With Arduino:VOICE




About: Just another hacker

OH! the expenses of luxury home automation by voice
have you ever wanted to build a home automation system that worked on voice command

Well look no further this is your one stop for home automation by VOICE

The system is based on the popular arduino development platform and the inexpensive HC -05 Bluetooth module.
It uses android as the voice recognition system

So let's get started!

UPDATE: i have entered this in the microcontroller contest. Please vote for me if you like it

Teacher Notes

Teachers! Did you use this instructable in your classroom?
Add a Teacher Note to share how you incorporated it into your lesson.

Step 1: The Hardware

We only need three things for this project

The arduino any model for the control of the leds, and possibly relays
Hc 05 bluetooth module for comunication with the android phone
an android phone (obviously)

Step 2: the Main Setup

Now the images pretty much self explanatory
But long image short
Bluetooth module tx - arduino 10
Bluetooth model rx - 11
led ground common and vcc to

NOTE : the bluetooth module is a hc-05 but fritzing didn't have the image

Step 3: The Code

The code is pretty simple
Just download the attached file and open it in the arduino ide
Then upload it

Step 4: Using the App and Extras

download the amr voice app from the play store and open it. connect the Hc 05 module password 1234 or 0000 and speak one of the commands in the code

  • light on/off - p# 2
  • fan on/off - p# 3
  • bedroom fan on/off - p# 4
  • bedroom lights on/off - P# 5
  • on/off - p# 13
  • flash on/off - p# 6

to make this a standalone make your own arduino ( also to save money )
there is a wealth of info online

here's a link :

you don't need the ftdi converter just program the chip pull it off the arduino and put it on the standalone board

ALSO for other tech stuff check out my blog at :

Tech Contest

Participated in the
Tech Contest

Microcontroller Contest

Participated in the
Microcontroller Contest

Be the First to Share


    • Made with Math Contest

      Made with Math Contest
    • Multi-Discipline Contest

      Multi-Discipline Contest
    • Robotics Contest

      Robotics Contest

    30 Discussions


    2 years ago

    which h/w is using here to convert our voice to machine languge


    2 years ago

    Either 1234 or 0000


    3 years ago

    I'd like to ask if HM-10 Bluetooth module will work to this project?


    3 years ago

    hella everyone. i m thinking to make this project.

    but please temme that how does the led gonna glow ??

    coz u havent connected the circuit to a battery or any power source.


    3 years ago

    hella everyone. its such a wonderfull project.but please tell me that from where the led is gonna get the power supply??

    coz u havent connected the led to any power source..


    3 years ago

    Hey. Nice project. Facing difficulty in uploading the code.

    Secondly let me know that how much led's do you have used and let me know the pin configuration.


    3 years ago

    it working awesome,but i want to control a voice contrrol car can u send me prog for that??


    Reply 4 years ago on Introduction

    sorry it's not my app but if you do want to develop it it basically send a text string through bluetooth


    4 years ago on Introduction

    i couldnt turn the led on do i need to give external power supply to leds


    4 years ago

    Can u give me pcb designe...??


    Reply 4 years ago on Introduction

    i want to design this project on pcb can u please help me with that. i just want design and component list.