Thursday, April 28, 2011

Bluetooth remote

This is a project I made for school. It is a controller for blinds. It consists of an atmega board, with a servo and a light sensor, which is connected to the computer via an USB-Serial adapter. On the PC you can view the light level and control the servo position. You can also connect an Android terminal to the PC via Bluetooth (SPP) and command the servo or view the light level.

I could've used a dedicated bluetooth module for the communication between the phone and the atmega board, but those were the instructions :)


 The board schematic will be uploaded soon
(board schematic)

Source code (for the mega8 board, android and windows) is available here:
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17 comments:

  1. AnonymousApril 29, 2011 at 3:24 PM

    nice!

    ReplyDelete
  2. AnonymousJune 9, 2011 at 4:32 PM

    can you post the schematic also??

    ReplyDelete
  3. Hasbi asJuly 20, 2011 at 8:09 PM

    i was make a project to control a sliding door. can you explain more about how to communicate between android and atmega...
    thanks a lot

    ReplyDelete
  4. tatarandreiJuly 21, 2011 at 11:54 AM

    The communication with the android terminal is done via bluetooth with SPP (serial port profile). So basically on the android part you have a socket that you write/read to/from and the data arrives on the PC via a normal serial port or on a bluetooth adapter that has a serial port. I'm working now on v6.1 of the music player which will have a bluetooth module and an android terminal will be used as a remote.

    Stay tuned! :)

    ReplyDelete
  5. Hasbi asJuly 21, 2011 at 7:35 PM

    I want to use bluetooth headset as module.
    but i still confuse how to communicate headset and atmega. do have any idea?
    bluetooth headset use headset profile

    ReplyDelete
  6. andinafizaFebruary 29, 2012 at 12:45 AM

    hi..can you give your schematic board?
    im comfused what pin i use for data servo...
    i need your instruction... :(

    ReplyDelete
  7. andinafizaMarch 1, 2012 at 6:21 AM

    not run,, :(
    can we chat? via gmail or ym?? i need to ask you some question ..
    i want make project like this,,but i want control servo via android.just android comunicate with atmega8,,not via PC
    i hv use bloetooth in kit atmega8,

    my gmail andichyme@gmail.com

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  8. AndrewApril 5, 2013 at 7:35 PM

    Which bluetooth adapter did you use? I am looking to find a bluetooth adapter to work with an atmega32, so I figured this would be a good starting point.

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    Replies
    1. tatarandreiApril 8, 2013 at 11:26 PM

      I actually used the netbook as a bluetooth adapter but you can use those cheap serial port bluetooth modules all over on ebay.

      Delete
  9. Sanchit TanejaFebruary 3, 2014 at 9:42 PM

    Hi! I am trying to use HC 05 with mega 16. Can you suggest me the UART code for it. I have tried alot of bauds and F_CPU's but all in vain! The data being TX n RX is still gibberish!!!

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    Replies
    1. tatarandreiFebruary 5, 2014 at 8:41 AM

      Try getting it working on the PC first (with a USB->UART converter). The code on the AVR is the same as any UART code.

      Delete
  10. UnknownMay 11, 2014 at 2:25 PM

    How to get the application?

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    Replies
    1. tatarandreiMay 15, 2014 at 1:40 PM

      There's a link in the blog entry
      https://www.dropbox.com/s/vb6fkl9xtlj16dj/Android_Remote.zip

      Delete
  11. UnknownSeptember 16, 2014 at 6:22 PM

    Hello! I have one question... How can I install this Android app to my phone? Thank you!!

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    Replies
    1. tatarandreiSeptember 16, 2014 at 6:49 PM

      You would need to compile it and package it into an apk file. This file would need to run on the phone.
      Check Android Development Kit (ADK), it can do all of the above.

      Delete
  12. UnknownNovember 24, 2015 at 4:15 PM

    could you share the schematic, so far the app works fine I did a import eclipse project to android studio but I still need to get the atmega working

    ReplyDelete

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